Merge branch 'v2.0' into v2.1

CHANGELOG.md

@@ -1,3 +1,29 @@
+## [v2.0.6](https://github.com/containous/traefik/tree/v2.0.6) (2019-12-02)
+[All Commits](https://github.com/containous/traefik/compare/v2.0.5...v2.0.6)
+
+**Bug fixes:**
+- **[acme]** Update go-acme/lego to 3.2.0 ([#5839](https://github.com/containous/traefik/pull/5839) by [kolaente](https://github.com/kolaente))
+- **[cli,healthcheck]** Uses, if it exists, the ping entry point provided in the static configuration ([#5867](https://github.com/containous/traefik/pull/5867) by [jbdoumenjou](https://github.com/jbdoumenjou))
+- **[healthcheck]** Healthcheck managed for all related services ([#5860](https://github.com/containous/traefik/pull/5860) by [jbdoumenjou](https://github.com/jbdoumenjou))
+- **[logs,middleware]** Do not give responsewriter or its headers to asynchronous logging goroutine ([#5840](https://github.com/containous/traefik/pull/5840) by [mpl](https://github.com/mpl))
+- **[middleware]** X-Forwarded-Proto must not skip the redirection. ([#5836](https://github.com/containous/traefik/pull/5836) by [ldez](https://github.com/ldez))
+- **[middleware]** fix: location header rewrite. ([#5835](https://github.com/containous/traefik/pull/5835) by [ldez](https://github.com/ldez))
+- **[middleware]** Remove Request Headers CORS Preflight Requirement ([#5903](https://github.com/containous/traefik/pull/5903) by [dtomcej](https://github.com/dtomcej))
+- **[rancher]** Change service name in rancher provider to make webui service details view work ([#5895](https://github.com/containous/traefik/pull/5895) by [SantoDE](https://github.com/SantoDE))
+- **[tracing]** Fix extraction for zipkin tracing ([#5920](https://github.com/containous/traefik/pull/5920) by [jcchavezs](https://github.com/jcchavezs))
+- **[webui]** Web UI: Avoid unnecessary duplicated api calls ([#5884](https://github.com/containous/traefik/pull/5884) by [matthieuh](https://github.com/matthieuh))
+- **[webui]** Web UI: Avoid some router properties to overflow their container ([#5872](https://github.com/containous/traefik/pull/5872) by [matthieuh](https://github.com/matthieuh))
+- **[webui]** Web UI: Fix displayed tcp service details ([#5868](https://github.com/containous/traefik/pull/5868) by [matthieuh](https://github.com/matthieuh))
+
+**Documentation:**
+- **[acme]** doc: fix wrong acme information ([#5837](https://github.com/containous/traefik/pull/5837) by [ldez](https://github.com/ldez))
+- **[docker,docker/swarm]** Add Swarm section to the Docker Provider Documentation ([#5874](https://github.com/containous/traefik/pull/5874) by [dduportal](https://github.com/dduportal))
+- **[docker]** Update router entrypoint example ([#5766](https://github.com/containous/traefik/pull/5766) by [woto](https://github.com/woto))
+- **[k8s/helm]** Mention the experimental Helm Chart in the installation section of documentation ([#5879](https://github.com/containous/traefik/pull/5879) by [dduportal](https://github.com/dduportal))
+- doc: remove double quotes on CLI flags. ([#5862](https://github.com/containous/traefik/pull/5862) by [ldez](https://github.com/ldez))
+- Fixed spelling error ([#5834](https://github.com/containous/traefik/pull/5834) by [blakebuthod](https://github.com/blakebuthod))
+- Add back the security section from v1 ([#5832](https://github.com/containous/traefik/pull/5832) by [pascalandy](https://github.com/pascalandy))
+
 ## [v2.1.0-rc2](https://github.com/containous/traefik/tree/v2.0.4) (2019-11-15)
 [All Commits](https://github.com/containous/traefik/compare/v2.0.0-rc1...v2.1.0-rc2)
 

cmd/healthcheck/healthcheck.go

@@ -51,9 +51,14 @@ func Do(staticConfiguration static.Configuration) (*http.Response, error) {
 		return nil, errors.New("please enable `ping` to use health check")
 	}
 
-	pingEntryPoint, ok := staticConfiguration.EntryPoints["traefik"]
+	ep := staticConfiguration.Ping.EntryPoint
+	if ep == "" {
+		ep = "traefik"
+	}
+
+	pingEntryPoint, ok := staticConfiguration.EntryPoints[ep]
 	if !ok {
-		return nil, errors.New("missing `ping` entrypoint")
+		return nil, fmt.Errorf("ping: missing %s entry point", ep)
 	}
 
 	client := &http.Client{Timeout: 5 * time.Second}

docs/content/getting-started/install-traefik.md

@@ -3,6 +3,7 @@
 You can install Traefik with the following flavors:
 
 * [Use the official Docker image](./#use-the-official-docker-image)
+* [(Experimental) Use the Helm Chart](./#use-the-helm-chart)
 * [Use the binary distribution](./#use-the-binary-distribution)
 * [Compile your binary from the sources](./#compile-your-binary-from-the-sources)
 
@@ -24,6 +25,70 @@ For more details, go to the [Docker provider documentation](../providers/docker.
     * Docker images are based from the [Alpine Linux Official image](https://hub.docker.com/_/alpine).
     * All the orchestrator using docker images could fetch the official Traefik docker image.
 
+## Use the Helm Chart
+
+!!! warning "Experimental Helm Chart"
+    
+    Please note that the Helm Chart for Traefik v2 is still experimental.
+    
+    The Traefik Stable Chart from 
+    [Helm's default charts repository](https://github.com/helm/charts/tree/master/stable/traefik) is still using [Traefik v1.7](https://docs.traefik.io/v1.7).
+
+Traefik can be installed in Kubernetes using the v2.0 Helm chart from <https://github.com/containous/traefik-helm-chart>.
+
+Ensure that the following requirements are met:
+
+* Kubernetes 1.14+
+* Helm version 2.x is [installed](https://v2.helm.sh/docs/using_helm/) and initialized with Tiller
+
+Retrieve the latest chart version from the repository:
+
+```bash
+# Retrieve Chart from the repository
+git clone https://github.com/containous/traefik-helm-chart
+```
+
+And install it with the `helm` command line:
+
+```bash
+helm install ./traefik-helm-chart
+```
+
+!!! tip "Helm Features"
+    
+    All [Helm features](https://v2.helm.sh/docs/using_helm/#using-helm) are supported.
+    For instance, installing the chart in a dedicated namespace:
+
+    ```bash tab="Install in a Dedicated Namespace"
+    # Install in the namespace "traefik-v2"
+    helm install --namespace=traefik-v2 \
+        ./traefik-helm-chart
+    ```
+
+??? example "Installing with Custom Values"
+    
+    You can customize the installation by specifying custom values,
+    as with [any helm chart](https://v2.helm.sh/docs/using_helm/#customizing-the-chart-before-installing).
+    {: #helm-custom-values }
+    
+    The values are not (yet) documented, but are self-explanatory:
+    you can look at the [default `values.yaml`](https://github.com/containous/traefik-helm-chart/blob/master/values.yaml) file to explore possibilities.
+    
+    Example of installation with logging set to `DEBUG`:
+    
+    ```bash tab="Using Helm CLI"
+    helm install --namespace=traefik-v2 \
+        --set="logs.loglevel=DEBUG" \
+        ./traefik-helm-chart
+    ```
+    
+    ```yml tab="With a custom values file"
+    # File custom-values.yml
+    ## Install with "helm install --values=./custom-values.yml ./traefik-helm-chart
+    logs:
+        loglevel: DEBUG
+    ```
+
 ## Use the Binary Distribution
 
 Grab the latest binary from the [releases](https://github.com/containous/traefik/releases) page.

docs/content/https/acme.md

@@ -47,11 +47,11 @@ You can configure Traefik to use an ACME provider (like Let's Encrypt) for autom
     ```
     
     ```bash tab="CLI"
-    --entryPoints.web.address=":80"
+    --entryPoints.web.address=:80
-    --entryPoints.websecure.address=":443"
+    --entryPoints.websecure.address=:443
     # ...
-    --certificatesResolvers.sample.acme.email="your-email@your-domain.org"
+    --certificatesResolvers.sample.acme.email=your-email@your-domain.org
-    --certificatesResolvers.sample.acme.storage="acme.json"
+    --certificatesResolvers.sample.acme.storage=acme.json
     # used during the challenge
     --certificatesResolvers.sample.acme.httpChallenge.entryPoint=web
     ```
@@ -156,8 +156,8 @@ when using the `HTTP-01` challenge, `certificatesResolvers.sample.acme.httpChall
     ```
     
     ```bash tab="CLI"
-    --entryPoints.web.address=":80"
+    --entryPoints.web.address=:80
-    --entryPoints.websecure.address=":443"
+    --entryPoints.websecure.address=:443
     # ...
     --certificatesResolvers.sample.acme.httpChallenge.entryPoint=web
     ```
@@ -312,7 +312,7 @@ certificatesResolvers:
 
 ```bash tab="CLI"
 # ...
---certificatesResolvers.sample.acme.dnsChallenge.resolvers:="1.1.1.1:53,8.8.8.8:53"
+--certificatesResolvers.sample.acme.dnsChallenge.resolvers:=1.1.1.1:53,8.8.8.8:53
 ```
 
 #### Wildcard Domains
@@ -342,7 +342,7 @@ As described in [Let's Encrypt's post](https://community.letsencrypt.org/t/stagi
 
     ```bash tab="CLI"
     # ...
-    --certificatesResolvers.sample.acme.caServer="https://acme-staging-v02.api.letsencrypt.org/directory"
+    --certificatesResolvers.sample.acme.caServer=https://acme-staging-v02.api.letsencrypt.org/directory
     # ...
     ```
 

docs/content/https/ref-acme.txt

@@ -4,13 +4,13 @@
 #
 # Required
 #
---certificatesResolvers.sample.acme.email="test@traefik.io"
+--certificatesResolvers.sample.acme.email=test@traefik.io
 
 # File or key used for certificates storage.
 #
 # Required
 #
---certificatesResolvers.sample.acme.storage="acme.json"
+--certificatesResolvers.sample.acme.storage=acme.json
 
 # CA server to use.
 # Uncomment the line to use Let's Encrypt's staging server,
@@ -19,7 +19,7 @@
 # Optional
 # Default: "https://acme-v02.api.letsencrypt.org/directory"
 #
---certificatesResolvers.sample.acme.caServer="https://acme-staging-v02.api.letsencrypt.org/directory"
+--certificatesResolvers.sample.acme.caServer=https://acme-staging-v02.api.letsencrypt.org/directory
 
 # KeyType to use.
 #
@@ -75,7 +75,7 @@
 # Optional
 # Default: empty
 #
---certificatesResolvers.sample.acme.dnsChallenge.resolvers="1.1.1.1:53,8.8.8.8:53"
+--certificatesResolvers.sample.acme.dnsChallenge.resolvers=1.1.1.1:53,8.8.8.8:53
 
 # Disable the DNS propagation checks before notifying ACME that the DNS challenge is ready.
 #

docs/content/migration/v1-to-v2.md

@@ -718,11 +718,11 @@ with the path `/admin` stripped, e.g. to `http://<IP>:<port>/`. In this case, yo
     ```
 
     ```bash tab="CLI"
-    --entryPoints.web.address=":80"
+    --entryPoints.web.address=:80
-    --entryPoints.websecure.address=":443"
+    --entryPoints.websecure.address=:443
-    --certificatesResolvers.sample.acme.email: your-email@your-domain.org
+    --certificatesResolvers.sample.acme.email=your-email@your-domain.org
-    --certificatesResolvers.sample.acme.storage: acme.json
+    --certificatesResolvers.sample.acme.storage=acme.json
-    --certificatesResolvers.sample.acme.httpChallenge.entryPoint: web
+    --certificatesResolvers.sample.acme.httpChallenge.entryPoint=web
     ```
 
 ## Traefik Logs
@@ -744,9 +744,9 @@ There is no more log configuration at the root level.
     ```
 
     ```bash tab="CLI"
-    --logLevel="DEBUG"
+    --logLevel=DEBUG
-    --traefikLog.filePath="/path/to/traefik.log"
+    --traefikLog.filePath=/path/to/traefik.log
-    --traefikLog.format="json"
+    --traefikLog.format=json
     ```
 
     !!! info "v2"
@@ -768,9 +768,9 @@ There is no more log configuration at the root level.
     ```
 
     ```bash tab="CLI"
-    --log.level="DEBUG"
+    --log.level=DEBUG
-    --log.filePath="/path/to/traefik.log"
+    --log.filePath=/path/to/traefik.log
-    --log.format="json"
+    --log.format=json
     ```
 
 ## Tracing
@@ -794,12 +794,12 @@ Traefik v2 retains OpenTracing support. The `backend` root option from the v1 is
     ```
 
     ```bash tab="CLI"
-    --tracing.backend="jaeger"
+    --tracing.backend=jaeger
-    --tracing.servicename="tracing"
+    --tracing.servicename=tracing
-    --tracing.jaeger.localagenthostport="12.0.0.1:6831"
+    --tracing.jaeger.localagenthostport=12.0.0.1:6831
-    --tracing.jaeger.samplingparam="1.0"
+    --tracing.jaeger.samplingparam=1.0
-    --tracing.jaeger.samplingserverurl="http://12.0.0.1:5778/sampling"
+    --tracing.jaeger.samplingserverurl=http://12.0.0.1:5778/sampling
-    --tracing.jaeger.samplingtype="const"
+    --tracing.jaeger.samplingtype=const
     ```
 
     !!! info "v2"
@@ -827,11 +827,11 @@ Traefik v2 retains OpenTracing support. The `backend` root option from the v1 is
     ```
 
     ```bash tab="CLI"
-    --tracing.servicename="tracing"
+    --tracing.servicename=tracing
-    --tracing.jaeger.localagenthostport="12.0.0.1:6831"
+    --tracing.jaeger.localagenthostport=12.0.0.1:6831
-    --tracing.jaeger.samplingparam="1.0"
+    --tracing.jaeger.samplingparam=1.0
-    --tracing.jaeger.samplingserverurl="http://12.0.0.1:5778/sampling"
+    --tracing.jaeger.samplingserverurl=http://12.0.0.1:5778/sampling
-    --tracing.jaeger.samplingtype="const"
+    --tracing.jaeger.samplingtype=const
     ```
 
 ## Metrics
@@ -852,7 +852,7 @@ For a basic configuration, the [metrics configuration](../observability/metrics/
 
     ```bash tab="CLI"
     --metrics.prometheus.buckets=[0.1,0.3,1.2,5.0]
-    --metrics.prometheus.entrypoint="traefik"
+    --metrics.prometheus.entrypoint=traefik
     ```
 
     !!! info "v2"
@@ -878,7 +878,7 @@ For a basic configuration, the [metrics configuration](../observability/metrics/
 
     ```bash tab="CLI"
     --metrics.prometheus.buckets=[0.1,0.3,1.2,5.0]
-    --metrics.prometheus.entrypoint="metrics"
+    --metrics.prometheus.entrypoint=metrics
     ```
 
 ## No More Root Level Key/Values
@@ -908,14 +908,14 @@ Each root item has been moved to a related section or removed.
     ```bash tab="CLI"
     --checknewversion=false
     --sendanonymoususage=true
-    --loglevel="DEBUG"
+    --loglevel=DEBUG
     --insecureskipverify=true
-    --rootcas="/mycert.cert"
+    --rootcas=/mycert.cert
     --maxidleconnsperhost=200
-    --providersthrottleduration="2s"
+    --providersthrottleduration=2s
     --allowminweightzero=true
     --debug=true
-    --defaultentrypoints="web","web-secure"
+    --defaultentrypoints=web,web-secure
     --keeptrailingslash=true
     ```
 
@@ -961,9 +961,9 @@ Each root item has been moved to a related section or removed.
     ```bash tab="CLI"
     --global.checknewversion=true
     --global.sendanonymoususage=true
-    --log.level="DEBUG"
+    --log.level=DEBUG
     --serverstransport.insecureskipverify=true
-    --serverstransport.rootcas="/mycert.cert"
+    --serverstransport.rootcas=/mycert.cert
     --serverstransport.maxidleconnsperhost=42
     --providers.providersthrottleduration=42
     ```

docs/content/observability/access-logs.md

@@ -61,7 +61,7 @@ accessLog:
 ```bash tab="CLI"
 # Configuring a buffer of 100 lines
 --accesslog=true
---accesslog.filepath="/path/to/access.log"
+--accesslog.filepath=/path/to/access.log
 --accesslog.bufferingsize=100
 ```
 
@@ -104,11 +104,11 @@ accessLog:
 ```bash tab="CLI"
 # Configuring Multiple Filters
 --accesslog=true
---accesslog.filepath="/path/to/access.log"
+--accesslog.filepath=/path/to/access.log
---accesslog.format="json"
+--accesslog.format=json
---accesslog.filters.statuscodes="200, 300-302"
+--accesslog.filters.statuscodes=200,300-302
 --accesslog.filters.retryattempts
---accesslog.filters.minduration="10ms"
+--accesslog.filters.minduration=10ms
 ```
 
 ### Limiting the Fields
@@ -164,14 +164,14 @@ accessLog:
 ```bash tab="CLI"
 # Limiting the Logs to Specific Fields
 --accesslog=true
---accesslog.filepath="/path/to/access.log"
+--accesslog.filepath=/path/to/access.log
---accesslog.format="json"
+--accesslog.format=json
---accesslog.fields.defaultmode="keep"
+--accesslog.fields.defaultmode=keep
---accesslog.fields.names.ClientUsername="drop"
+--accesslog.fields.names.ClientUsername=drop
---accesslog.fields.headers.defaultmode="keep"
+--accesslog.fields.headers.defaultmode=keep
---accesslog.fields.headers.names.User-Agent="redact"
+--accesslog.fields.headers.names.User-Agent=redact
---accesslog.fields.headers.names.Authorization="drop"
+--accesslog.fields.headers.names.Authorization=drop
---accesslog.fields.headers.names.Content-Type="keep"
+--accesslog.fields.headers.names.Content-Type=keep
 ```
 
 ??? info "Available Fields"

docs/content/observability/logs.md

@@ -30,7 +30,7 @@ log:
 
 ```bash tab="CLI"
 # Writing Logs to a File
---log.filePath="/path/to/traefik.log"
+--log.filePath=/path/to/traefik.log
 ```
 
 #### `format`
@@ -53,8 +53,8 @@ log:
 
 ```bash tab="CLI"
 # Writing Logs to a File, in JSON
---log.filePath="/path/to/traefik.log"
+--log.filePath=/path/to/traefik.log
---log.format="json"
+--log.format=json
 ```
 
 #### `level`
@@ -72,7 +72,7 @@ log:
 ```
 
 ```bash tab="CLI"
---log.level="DEBUG"
+--log.level=DEBUG
 ```
 
 ## Log Rotation

docs/content/observability/metrics/datadog.md

@@ -35,7 +35,7 @@ metrics:
 ```
 
 ```bash tab="CLI"
---metrics.datadog.address="127.0.0.1:8125"
+--metrics.datadog.address=127.0.0.1:8125
 ```
 
 #### `addEntryPointsLabels`

docs/content/observability/metrics/influxdb.md

@@ -35,7 +35,7 @@ metrics:
 ```
 
 ```bash tab="CLI"
---metrics.influxdb.address="localhost:8089"
+--metrics.influxdb.address=localhost:8089
 ```
 
 #### `protocol`
@@ -57,7 +57,7 @@ metrics:
 ```
 
 ```bash tab="CLI"
---metrics.influxdb.protocol="udp"
+--metrics.influxdb.protocol=udp
 ```
 
 #### `database`
@@ -69,17 +69,17 @@ InfluxDB database used when protocol is http.
 ```toml tab="File (TOML)"
 [metrics]
   [metrics.influxDB]
-    database = ""
+    database = "db"
 ```
 
 ```yaml tab="File (YAML)"
 metrics:
   influxDB:
-    database: ""
+    database: "db"
 ```
 
 ```bash tab="CLI"
---metrics.influxdb.database=""
+--metrics.influxdb.database=db
 ```
 
 #### `retentionPolicy`
@@ -91,17 +91,17 @@ InfluxDB retention policy used when protocol is http.
 ```toml tab="File (TOML)"
 [metrics]
   [metrics.influxDB]
-    retentionPolicy = ""
+    retentionPolicy = "two_hours"
 ```
 
 ```yaml tab="File (YAML)"
 metrics:
   influxDB:
-    retentionPolicy: ""
+    retentionPolicy: "two_hours"
 ```
 
 ```bash tab="CLI"
---metrics.influxdb.retentionPolicy=""
+--metrics.influxdb.retentionPolicy=two_hours
 ```
 
 #### `username`
@@ -113,17 +113,17 @@ InfluxDB username (only with http).
 ```toml tab="File (TOML)"
 [metrics]
   [metrics.influxDB]
-    username = ""
+    username = "john"
 ```
 
 ```yaml tab="File (YAML)"
 metrics:
   influxDB:
-    username: ""
+    username: "john"
 ```
 
 ```bash tab="CLI"
---metrics.influxdb.username=""
+--metrics.influxdb.username=john
 ```
 
 #### `password`
@@ -135,17 +135,17 @@ InfluxDB password (only with http).
 ```toml tab="File (TOML)"
 [metrics]
   [metrics.influxDB]
-    password = ""
+    password = "secret"
 ```
 
 ```yaml tab="File (YAML)"
 metrics:
   influxDB:
-    password: ""
+    password: "secret"
 ```
 
 ```bash tab="CLI"
---metrics.influxdb.password=""
+--metrics.influxdb.password=secret
 ```
 
 #### `addEntryPointsLabels`

docs/content/observability/metrics/prometheus.md

@@ -113,8 +113,8 @@ metrics:
 ```
 
 ```bash tab="CLI"
---entryPoints.metrics.address=":8082"
+--entryPoints.metrics.address=:8082
---metrics.prometheus.entryPoint="metrics"
+--metrics.prometheus.entryPoint=metrics
 ```
 
 #### `manualRouting`

docs/content/observability/metrics/statsd.md

@@ -35,7 +35,7 @@ metrics:
 ```
 
 ```bash tab="CLI"
---metrics.statsd.address="localhost:8125"
+--metrics.statsd.address=localhost:8125
 ```
 
 #### `addEntryPointsLabels`

docs/content/observability/tracing/datadog.md

@@ -35,7 +35,7 @@ tracing:
 ```
 
 ```bash tab="CLI"
---tracing.datadog.localAgentHostPort="127.0.0.1:8126"
+--tracing.datadog.localAgentHostPort=127.0.0.1:8126
 ```
 
 #### `debug`
@@ -79,7 +79,7 @@ tracing:
 ```
 
 ```bash tab="CLI"
---tracing.datadog.globalTag="sample"
+--tracing.datadog.globalTag=sample
 ```
 
 #### `prioritySampling`

docs/content/observability/tracing/haystack.md

@@ -35,7 +35,7 @@ tracing:
 ```
 
 ```bash tab="CLI"
---tracing.haystack.localAgentHost="127.0.0.1"
+--tracing.haystack.localAgentHost=127.0.0.1
 ```
 
 #### `localAgentPort`
@@ -79,7 +79,7 @@ tracing:
 ```
 
 ```bash tab="CLI"
---tracing.haystack.globalTag="sample:test"
+--tracing.haystack.globalTag=sample:test
 ```
 
 #### `traceIDHeaderName`
@@ -101,7 +101,7 @@ tracing:
 ```
 
 ```bash tab="CLI"
---tracing.haystack.traceIDHeaderName="sample"
+--tracing.haystack.traceIDHeaderName=sample
 ```
 
 #### `parentIDHeaderName`
@@ -123,7 +123,7 @@ tracing:
 ```
 
 ```bash tab="CLI"
---tracing.haystack.parentIDHeaderName="sample"
+--tracing.haystack.parentIDHeaderName=sample
 ```
 
 #### `spanIDHeaderName`
@@ -168,5 +168,5 @@ tracing:
 
 
 ```bash tab="CLI"
---tracing.haystack.baggagePrefixHeaderName="sample"
+--tracing.haystack.baggagePrefixHeaderName=sample
 ```

docs/content/observability/tracing/instana.md

@@ -35,7 +35,7 @@ tracing:
 ```
 
 ```bash tab="CLI"
---tracing.instana.localAgentHost="127.0.0.1"
+--tracing.instana.localAgentHost=127.0.0.1
 ```
 
 #### `localAgentPort`
@@ -86,5 +86,5 @@ tracing:
 ```
 
 ```bash tab="CLI"
---tracing.instana.logLevel="info"
+--tracing.instana.logLevel=info
 ```

docs/content/observability/tracing/jaeger.md

@@ -39,7 +39,7 @@ tracing:
 ```
 
 ```bash tab="CLI"
---tracing.jaeger.samplingServerURL="http://localhost:5778/sampling"
+--tracing.jaeger.samplingServerURL=http://localhost:5778/sampling
 ```
 
 #### `samplingType`
@@ -61,7 +61,7 @@ tracing:
 ```
 
 ```bash tab="CLI"
---tracing.jaeger.samplingType="const"
+--tracing.jaeger.samplingType=const
 ```
 
 #### `samplingParam`
@@ -89,7 +89,7 @@ tracing:
 ```
 
 ```bash tab="CLI"
---tracing.jaeger.samplingParam="1.0"
+--tracing.jaeger.samplingParam=1.0
 ```
 
 #### `localAgentHostPort`
@@ -111,7 +111,7 @@ tracing:
 ```
 
 ```bash tab="CLI"
---tracing.jaeger.localAgentHostPort="127.0.0.1:6831"
+--tracing.jaeger.localAgentHostPort=127.0.0.1:6831
 ```
 
 #### `gen128Bit`
@@ -159,7 +159,7 @@ tracing:
 ```
 
 ```bash tab="CLI"
---tracing.jaeger.propagation="jaeger"
+--tracing.jaeger.propagation=jaeger
 ```
 
 #### `traceContextHeaderName`
@@ -182,7 +182,7 @@ tracing:
 ```
 
 ```bash tab="CLI"
---tracing.jaeger.traceContextHeaderName="uber-trace-id"
+--tracing.jaeger.traceContextHeaderName=uber-trace-id
 ```
 
 ### `collector`
@@ -206,7 +206,7 @@ tracing:
 ```
 
 ```bash tab="CLI"
---tracing.jaeger.collector.endpoint="http://127.0.0.1:14268/api/traces?format=jaeger.thrift"
+--tracing.jaeger.collector.endpoint=http://127.0.0.1:14268/api/traces?format=jaeger.thrift
 ```
 
 #### `user`
@@ -229,7 +229,7 @@ tracing:
 ```
 
 ```bash tab="CLI"
---tracing.jaeger.collector.user="my-user"
+--tracing.jaeger.collector.user=my-user
 ```
 
 #### `password`
@@ -252,5 +252,5 @@ tracing:
 ```
 
 ```bash tab="CLI"
---tracing.jaeger.collector.password="my-password"
+--tracing.jaeger.collector.password=my-password
 ```

docs/content/observability/tracing/overview.md

@@ -52,7 +52,7 @@ tracing:
 ```
 
 ```bash tab="CLI"
---tracing.serviceName="traefik"
+--tracing.serviceName=traefik
 ```
 
 #### `spanNameLimit`

docs/content/observability/tracing/zipkin.md

@@ -35,7 +35,7 @@ tracing:
 ```
 
 ```bash tab="CLI"
---tracing.zipkin.httpEndpoint="http://localhost:9411/api/v2/spans"
+--tracing.zipkin.httpEndpoint=http://localhost:9411/api/v2/spans
 ```
 
 #### `sameSpan`
@@ -101,5 +101,5 @@ tracing:
 ```
 
 ```bash tab="CLI"
---tracing.zipkin.sampleRate="0.2"
+--tracing.zipkin.sampleRate=0.2
 ```

docs/content/operations/ping.md

@@ -55,8 +55,8 @@ ping:
 ```
 
 ```bash tab="CLI"
---entryPoints.ping.address=":8082"
+--entryPoints.ping.address=:8082
---ping.entryPoint="ping"
+--ping.entryPoint=ping
 ```
 
 #### `manualRouting`

docs/content/providers/docker.md

@@ -7,6 +7,9 @@ A Story of Labels & Containers
 
 Attach labels to your containers and let Traefik do the rest!
 
+Traefik works with both [Docker (standalone) Engine](https://docs.docker.com/engine/)
+and [Docker Swarm Mode](https://docs.docker.com/engine/swarm/).
+
 !!! tip "The Quick Start Uses Docker"
     If you haven't already, maybe you'd like to go through the [quick start](../getting-started/quick-start.md) that uses the docker provider!
 
@@ -64,7 +67,7 @@ Attach labels to your containers and let Traefik do the rest!
     ```
     
     ```bash tab="CLI"
-    --providers.docker.endpoint="tcp://127.0.0.1:2375"
+    --providers.docker.endpoint=tcp://127.0.0.1:2375
     --providers.docker.swarmMode=true
     ```
 
@@ -80,15 +83,136 @@ Attach labels to your containers and let Traefik do the rest!
             - traefik.http.services.my-container-service.loadbalancer.server.port=8080
     ```
 
-    !!! important "Labels in Docker Swarm Mode"
-        While in Swarm Mode, Traefik uses labels found on services, not on individual containers.
-        
-        Therefore, if you use a compose file with Swarm Mode, labels should be defined in the `deploy` part of your service.
-        This behavior is only enabled for docker-compose version 3+ ([Compose file reference](https://docs.docker.com/compose/compose-file/#labels-1)).
-
 ## Routing Configuration
 
-See the dedicated section in [routing](../routing/providers/docker.md).
+When using Docker as a [provider](https://docs.traefik.io/providers/overview/),
+Trafik uses [container labels](https://docs.docker.com/engine/reference/commandline/run/#set-metadata-on-container--l---label---label-file) to retrieve its routing configuration.
+
+See the list of labels in the dedicated [routing](../routing/providers/docker.md) section.
+
+### Routing Configuration with Labels
+
+By default, Traefik watches for [container level labels](https://docs.docker.com/config/labels-custom-metadata/) on a standalone Docker Engine.
+
+When using Docker Compose, labels are specified by the directive
+[`labels`](https://docs.docker.com/compose/compose-file/#labels) from the
+["services" objects](https://docs.docker.com/compose/compose-file/#service-configuration-reference).
+
+!!! tip "Not Only Docker"
+    Please note that any tool like Nomad, Terraform, Ansible, etc.
+    that is able to define a Docker container with labels can work
+    with Traefik & the Docker provider.
+
+### Port Detection
+
+Traefik retrieves the private IP and port of containers from the Docker API.
+
+Ports detection works as follows:
+
+- If a container [exposes](https://docs.docker.com/engine/reference/builder/#expose) only one port,
+  then Traefik uses this port for private communication.
+- If a container [exposes](https://docs.docker.com/engine/reference/builder/#expose) multiple ports,
+  or does not expose any port, then you must manually specify which port Traefik should use for communication 
+  by using the label `traefik.http.services.<service_name>.loadbalancer.server.port`
+  (Read more on this label in the dedicated section in [routing](../routing/providers/docker.md#port)).
+
+### Docker API Access
+
+Traefik requires access to the docker socket to get its dynamic configuration.
+
+You can specify which Docker API Endpoint to use with the directive [`endpoint`](#endpoint).
+
+!!! warning "Security Note"
+
+    Accessing the Docker API without any restriction is a security concern:
+    If Traefik is attacked, then the attacker might get access to the underlying host.
+    {: #security-note }
+    
+    As explained in the Docker documentation: ([Docker Daemon Attack Surface page](https://docs.docker.com/engine/security/security/#docker-daemon-attack-surface)):
+
+    !!! quote
+        [...] only **trusted** users should be allowed to control your Docker daemon [...]
+
+    ??? success "Solutions"
+
+        Expose the Docker socket over TCP, instead of the default Unix socket file.
+        It allows different implementation levels of the [AAA (Authentication, Authorization, Accounting) concepts](https://en.wikipedia.org/wiki/AAA_(computer_security)), depending on your security assessment:
+
+        - Authentication with Client Certificates as described in ["Protect the Docker daemon socket."](https://docs.docker.com/engine/security/https/)
+        - Authorize and filter requests to restrict possible actions with [the TecnativaDocker Socket Proxy](https://github.com/Tecnativa/docker-socket-proxy).
+        - Authorization with the [Docker Authorization Plugin Mechanism](https://docs.docker.com/engine/extend/plugins_authorization/)
+        - Accounting at networking level, by exposing the socket only inside a Docker private network, only available for Traefik.
+        - Accounting at container level, by exposing the socket on a another container than Traefik's.
+          With Swarm mode, it allows scheduling of Traefik on worker nodes, with only the "socket exposer" container on the manager nodes.
+        - Accounting at kernel level, by enforcing kernel calls with mechanisms like [SELinux](https://en.wikipedia.org/wiki/Security-Enhanced_Linux), to only allows an identified set of actions for Traefik's process (or the "socket exposer" process).
+
+    ??? info "More Resources and Examples"
+        - ["Paranoid about mounting /var/run/docker.sock?"](https://medium.com/@containeroo/traefik-2-0-paranoid-about-mounting-var-run-docker-sock-22da9cb3e78c)
+        - [Traefik and Docker: A Discussion with Docker Captain, Bret Fisher](https://blog.containo.us/traefik-and-docker-a-discussion-with-docker-captain-bret-fisher-7f0b9a54ff88)
+        - [KubeCon EU 2018 Keynote, Running with Scissors, from Liz Rice](https://www.youtube.com/watch?v=ltrV-Qmh3oY)
+        - [Don't expose the Docker socket (not even to a container)](https://www.lvh.io/posts/dont-expose-the-docker-socket-not-even-to-a-container/)
+        - [A thread on Stack Overflow about sharing the `/var/run/docker.sock` file](https://news.ycombinator.com/item?id=17983623)
+        - [To DinD or not to DinD](https://blog.loof.fr/2018/01/to-dind-or-not-do-dind.html)
+        - [Traefik issue GH-4174 about security with Docker socket](https://github.com/containous/traefik/issues/4174)
+        - [Inspecting Docker Activity with Socat](https://developers.redhat.com/blog/2015/02/25/inspecting-docker-activity-with-socat/)
+        - [Letting Traefik run on Worker Nodes](https://blog.mikesir87.io/2018/07/letting-traefik-run-on-worker-nodes/)
+        - [Docker Socket Proxy from Tecnativa](https://github.com/Tecnativa/docker-socket-proxy)
+
+## Docker Swarm Mode
+
+To enable Docker Swarm (instead of standalone Docker) as a configuration provider,
+set the [`swarmMode`](#swarmmode) directive to `true`.
+
+### Routing Configuration with Labels
+
+While in Swarm Mode, Traefik uses labels found on services, not on individual containers.
+
+Therefore, if you use a compose file with Swarm Mode, labels should be defined in the
+[`deploy`](https://docs.docker.com/compose/compose-file/#labels-1) part of your service.
+
+This behavior is only enabled for docker-compose version 3+ ([Compose file reference](https://docs.docker.com/compose/compose-file)).
+
+### Port Detection
+
+Docker Swarm does not provide any [port detection](#port-detection) information to Traefik.
+
+Therefore you **must** specify the port to use for communication by using the label `traefik.http.services.<service_name>.loadbalancer.server.port`
+(Check the reference for this label in the [routing section for Docker](../routing/providers/docker.md#port)).
+
+### Docker API Access
+
+Docker Swarm Mode follows the same rules as Docker [API Access](#docker-api-access).
+
+As the Swarm API is only exposed on the [manager nodes](https://docs.docker.com/engine/swarm/how-swarm-mode-works/nodes/#manager-nodes), you should schedule Traefik on the Swarm manager nodes by default,
+by deploying Traefik with a [constraint](https://success.docker.com/article/using-contraints-and-labels-to-control-the-placement-of-containers) on the node's "role":
+
+```shell tab="With Docker CLI"
+docker service create \
+  --constraint=node.role==manager \
+  #... \
+```
+
+```yml tab="With Docker Compose"
+version: '3'
+
+services:
+  traefik:
+    # ...
+    deploy:
+      placement:
+        constraints:
+          - node.role == manager
+```
+
+!!! tip "Scheduling Traefik on Worker Nodes"
+    
+    Following the guidelines given in the previous section ["Docker API Access"](#docker-api-access),
+    if you expose the Docker API through TCP, then Traefik can be scheduled on any node if the TCP
+    socket is reachable.
+    
+    Please consider the security implications by reading the [Security Note](#security-note).
+    
+    A good example can be found on [Bret Fisher's repository](https://github.com/BretFisher/dogvscat/blob/master/stack-proxy-global.yml#L124).
 
 ## Provider Configuration
 
@@ -108,51 +232,10 @@ providers:
 ```
 
 ```bash tab="CLI"
---providers.docker.endpoint="unix:///var/run/docker.sock"
+--providers.docker.endpoint=unix:///var/run/docker.sock
 ```
 
-Traefik requires access to the docker socket to get its dynamic configuration.
+See the sections [Docker API Access](#docker-api-access) and [Docker Swarm API Access](#docker-api-access_1) for more information.
-
-??? warning "Security Notes"
-
-    Depending on your context, accessing the Docker API without any restriction can be a security concern: If Traefik is attacked, then the attacker might get access to the Docker (or Swarm Mode) backend.
-
-    As explained in the Docker documentation: ([Docker Daemon Attack Surface page](https://docs.docker.com/engine/security/security/#docker-daemon-attack-surface)):
-
-    `[...] only **trusted** users should be allowed to control your Docker daemon [...]`
-
-    !!! tip "Improved Security"
-
-        [TraefikEE](https://containo.us/traefikee) solves this problem by separating the control plane (connected to Docker) and the data plane (handling the requests).
-
-    ??? info "Resources about Docker's Security"
-
-        - [KubeCon EU 2018 Keynote, Running with Scissors, from Liz Rice](https://www.youtube.com/watch?v=ltrV-Qmh3oY)
-        - [Don't expose the Docker socket (not even to a container)](https://www.lvh.io/posts/dont-expose-the-docker-socket-not-even-to-a-container/)
-        - [A thread on Stack Overflow about sharing the `/var/run/docker.sock` file](https://news.ycombinator.com/item?id=17983623)
-        - [To DinD or not to DinD](https://blog.loof.fr/2018/01/to-dind-or-not-do-dind.html)
-
-??? tip "Security Compensation"
-
-    Expose the Docker socket over TCP, instead of the default Unix socket file.
-    It allows different implementation levels of the [AAA (Authentication, Authorization, Accounting) concepts](https://en.wikipedia.org/wiki/AAA_(computer_security)), depending on your security assessment:
-
-    - Authentication with Client Certificates as described in ["Protect the Docker daemon socket."](https://docs.docker.com/engine/security/https/)
-    - Authorization with the [Docker Authorization Plugin Mechanism](https://docs.docker.com/engine/extend/plugins_authorization/)
-    - Accounting at networking level, by exposing the socket only inside a Docker private network, only available for Traefik.
-    - Accounting at container level, by exposing the socket on a another container than Traefik's.
-      With Swarm mode, it allows scheduling of Traefik on worker nodes, with only the "socket exposer" container on the manager nodes.
-    - Accounting at kernel level, by enforcing kernel calls with mechanisms like [SELinux](https://en.wikipedia.org/wiki/Security-Enhanced_Linux), to only allows an identified set of actions for Traefik's process (or the "socket exposer" process).
-
-    ??? info "Additional Resources"
-
-        - [Traefik issue GH-4174 about security with Docker socket](https://github.com/containous/traefik/issues/4174)
-        - [Inspecting Docker Activity with Socat](https://developers.redhat.com/blog/2015/02/25/inspecting-docker-activity-with-socat/)
-        - [Letting Traefik run on Worker Nodes](https://blog.mikesir87.io/2018/07/letting-traefik-run-on-worker-nodes/)
-        - [Docker Socket Proxy from Tecnativa](https://github.com/Tecnativa/docker-socket-proxy)
-
-!!! info "Traefik & Swarm Mode"
-    To let Traefik access the Docker Socket of the Swarm manager, it is mandatory to schedule Traefik on the Swarm manager nodes.
 
 ??? example "Using the docker.sock"
 
@@ -186,7 +269,7 @@ Traefik requires access to the docker socket to get its dynamic configuration.
     ```
     
     ```bash tab="CLI"
-    --providers.docker.endpoint="unix:///var/run/docker.sock"
+    --providers.docker.endpoint=unix:///var/run/docker.sock
     # ...
     ```
 
@@ -311,7 +394,7 @@ providers:
 ```
 
 ```bash tab="CLI"
---providers.docker.defaultRule="Host(`{{ .Name }}.{{ index .Labels \"customLabel\"}}`)"
+--providers.docker.defaultRule=Host(`{{ .Name }}.{{ index .Labels \"customLabel\"}}`)
 # ...
 ```
 
@@ -343,7 +426,7 @@ providers:
 # ...
 ```
 
-Activates the Swarm Mode.
+Activates the Swarm Mode (instead of standalone Docker).
 
 ### `swarmModeRefreshSeconds`
 
@@ -375,19 +458,19 @@ _Optional, Default=""_
 
 ```toml tab="File (TOML)"
 [providers.docker]
-  constraints = "Label(`a.label.name`, `foo`)"
+  constraints = "Label(`a.label.name`,`foo`)"
   # ...
 ```
 
 ```yaml tab="File (YAML)"
 providers:
   docker:
-    constraints: "Label(`a.label.name`, `foo`)"
+    constraints: "Label(`a.label.name`,`foo`)"
     # ...
 ```
 
 ```bash tab="CLI"
---providers.docker.constraints="Label(`a.label.name`, `foo`)"
+--providers.docker.constraints=Label(`a.label.name`,`foo`)
 # ...
 ```
 

docs/content/providers/kubernetes-crd.md

@@ -32,7 +32,7 @@ providers:
 ```
 
 ```bash tab="CLI"
---providers.kubernetescrd.endpoint="http://localhost:8080"
+--providers.kubernetescrd.endpoint=http://localhost:8080
 ```
 
 The Kubernetes server endpoint as URL.
@@ -66,7 +66,7 @@ providers:
 ```
 
 ```bash tab="CLI"
---providers.kubernetescrd.token="mytoken"
+--providers.kubernetescrd.token=mytoken
 ```
 
 Bearer token used for the Kubernetes client configuration.
@@ -89,7 +89,7 @@ providers:
 ```
 
 ```bash tab="CLI"
---providers.kubernetescrd.certauthfilepath="/my/ca.crt"
+--providers.kubernetescrd.certauthfilepath=/my/ca.crt
 ```
 
 Path to the certificate authority file.
@@ -115,7 +115,7 @@ providers:
 ```
 
 ```bash tab="CLI"
---providers.kubernetescrd.namespaces="default,production"
+--providers.kubernetescrd.namespaces=default,production
 ```
 
 Array of namespaces to watch.
@@ -164,7 +164,7 @@ providers:
 ```
 
 ```bash tab="CLI"
---providers.kubernetescrd.ingressclass="traefik-internal"
+--providers.kubernetescrd.ingressclass=traefik-internal
 ```
 
 Value of `kubernetes.io/ingress.class` annotation that identifies Ingress objects to be processed.
@@ -190,7 +190,7 @@ providers:
 ```
 
 ```bash tab="CLI"
---providers.kubernetescrd.throttleDuration="10s"
+--providers.kubernetescrd.throttleDuration=10s
 ```
 
 ## Further

docs/content/providers/kubernetes-ingress.md

@@ -67,7 +67,7 @@ providers:
 ```
 
 ```bash tab="CLI"
---providers.kubernetesingress.endpoint="http://localhost:8080"
+--providers.kubernetesingress.endpoint=http://localhost:8080
 ```
 
 The Kubernetes server endpoint as URL, which is only used when the behavior based on environment variables described below does not apply.
@@ -99,7 +99,7 @@ providers:
 ```
 
 ```bash tab="CLI"
---providers.kubernetesingress.token="mytoken"
+--providers.kubernetesingress.token=mytoken
 ```
 
 Bearer token used for the Kubernetes client configuration.
@@ -122,7 +122,7 @@ providers:
 ```
 
 ```bash tab="CLI"
---providers.kubernetesingress.certauthfilepath="/my/ca.crt"
+--providers.kubernetesingress.certauthfilepath=/my/ca.crt
 ```
 
 Path to the certificate authority file.
@@ -171,7 +171,7 @@ providers:
 ```
 
 ```bash tab="CLI"
---providers.kubernetesingress.namespaces="default,production"
+--providers.kubernetesingress.namespaces=default,production
 ```
 
 Array of namespaces to watch.
@@ -220,7 +220,7 @@ providers:
 ```
 
 ```bash tab="CLI"
---providers.kubernetesingress.ingressclass="traefik-internal"
+--providers.kubernetesingress.ingressclass=traefik-internal
 ```
 
 Value of `kubernetes.io/ingress.class` annotation that identifies Ingress objects to be processed.
@@ -249,7 +249,7 @@ providers:
 ```
 
 ```bash tab="CLI"
---providers.kubernetesingress.ingressendpoint.hostname="foo.com"
+--providers.kubernetesingress.ingressendpoint.hostname=foo.com
 ```
 
 Hostname used for Kubernetes Ingress endpoints.
@@ -273,7 +273,7 @@ providers:
 ```
 
 ```bash tab="CLI"
---providers.kubernetesingress.ingressendpoint.ip="1.2.3.4"
+--providers.kubernetesingress.ingressendpoint.ip=1.2.3.4
 ```
 
 IP used for Kubernetes Ingress endpoints.
@@ -297,7 +297,7 @@ providers:
 ```
 
 ```bash tab="CLI"
---providers.kubernetesingress.ingressendpoint.publishedservice="foo-service"
+--providers.kubernetesingress.ingressendpoint.publishedservice=foo-service
 ```
 
 Published Kubernetes Service to copy status from.
@@ -320,7 +320,7 @@ providers:
 ```
 
 ```bash tab="CLI"
---providers.kubernetesingress.throttleDuration="10s"
+--providers.kubernetesingress.throttleDuration=10s
 ```
 
 ## Further

docs/content/providers/marathon.md

@@ -74,8 +74,8 @@ providers:
 ```
 
 ```bash tab="CLI"
---providers.marathon.basic.httpbasicauthuser="foo"
+--providers.marathon.basic.httpbasicauthuser=foo
---providers.marathon.basic.httpbasicpassword="bar"
+--providers.marathon.basic.httpbasicpassword=bar
 ```
 
 Enables Marathon basic authentication.
@@ -98,7 +98,7 @@ providers:
 ```
 
 ```bash tab="CLI"
---providers.marathon.dcosToken="xxxxxx"
+--providers.marathon.dcosToken=xxxxxx
 ```
 
 DCOSToken for DCOS environment.
@@ -123,7 +123,7 @@ providers:
 ```
 
 ```bash tab="CLI"
---providers.marathon.defaultRule="Host(`{{ .Name }}.{{ index .Labels \"customLabel\"}}`)"
+--providers.marathon.defaultRule=Host(`{{ .Name }}.{{ index .Labels \"customLabel\"}}`)
 # ...
 ```
 
@@ -182,7 +182,7 @@ providers:
 ```
 
 ```bash tab="CLI"
---providers.marathon.endpoint="http://10.241.1.71:8080,10.241.1.72:8080,10.241.1.73:8080"
+--providers.marathon.endpoint=http://10.241.1.71:8080,10.241.1.72:8080,10.241.1.73:8080
 ```
 
 Marathon server endpoint.
@@ -223,19 +223,19 @@ _Optional, Default=""_
 
 ```toml tab="File (TOML)"
 [providers.marathon]
-  constraints = "Label(`a.label.name`, `foo`)"
+  constraints = "Label(`a.label.name`,`foo`)"
   # ...
 ```
 
 ```yaml tab="File (YAML)"
 providers:
   marathon:
-    constraints: "Label(`a.label.name`, `foo`)"
+    constraints: "Label(`a.label.name`,`foo`)"
     # ...
 ```
 
 ```bash tab="CLI"
---providers.marathon.constraints="Label(`a.label.name`, `foo`)"
+--providers.marathon.constraints=Label(`a.label.name`,`foo`)
 # ...
 ```
 
@@ -389,7 +389,7 @@ providers:
 ```
 
 ```bash tab="CLI"
---providers.marathon.responseHeaderTimeout="66s"
+--providers.marathon.responseHeaderTimeout=66s
 # ...
 ```
 
@@ -532,7 +532,7 @@ providers:
 ```
 
 ```bash tab="CLI"
---providers.marathon.responseHeaderTimeout="10s"
+--providers.marathon.responseHeaderTimeout=10s
 # ...
 ```
 

docs/content/providers/rancher.md

@@ -104,7 +104,7 @@ providers:
 ```
 
 ```bash tab="CLI"
---providers.rancher.defaultRule="Host(`{{ .Name }}.{{ index .Labels \"customLabel\"}}`)"
+--providers.rancher.defaultRule=Host(`{{ .Name }}.{{ index .Labels \"customLabel\"}}`)
 # ...
 ```
 
@@ -209,7 +209,7 @@ providers:
 ```
 
 ```bash tab="CLI"
---providers.rancher.prefix="/test"
+--providers.rancher.prefix=/test
 # ...
 ```
 
@@ -221,19 +221,19 @@ _Optional, Default=""_
 
 ```toml tab="File (TOML)"
 [providers.rancher]
-  constraints = "Label(`a.label.name`, `foo`)"
+  constraints = "Label(`a.label.name`,`foo`)"
   # ...
 ```
 
 ```yaml tab="File (YAML)"
 providers:
   rancher:
-    constraints: "Label(`a.label.name`, `foo`)"
+    constraints: "Label(`a.label.name`,`foo`)"
     # ...
 ```
 
 ```bash tab="CLI"
---providers.rancher.constraints="Label(`a.label.name`, `foo`)"
+--providers.rancher.constraints=Label(`a.label.name`,`foo`)
 # ...
 ```
 

docs/content/providers/rancher.txt

@@ -17,4 +17,4 @@
 --providers.rancher.intervalPoll=false
 
 # Prefix used for accessing the Rancher metadata service
---providers.rancher.prefix="/latest"
+--providers.rancher.prefix=/latest

docs/content/providers/rancher.yml

@@ -18,4 +18,4 @@ providers:
   intervalPoll: false
 
   # Prefix used for accessing the Rancher metadata service
-  prefix: "/latest"
+  prefix: /latest

docs/content/routing/entrypoints.md

@@ -128,9 +128,9 @@ You can define them using a toml file, CLI arguments, or a key-value store.
     --entryPoints.name.transport.respondingTimeouts.writeTimeout=42
     --entryPoints.name.transport.respondingTimeouts.idleTimeout=42
     --entryPoints.name.proxyProtocol.insecure=true
-    --entryPoints.name.proxyProtocol.trustedIPs="127.0.0.1,192.168.0.1"
+    --entryPoints.name.proxyProtocol.trustedIPs=127.0.0.1,192.168.0.1
     --entryPoints.name.forwardedHeaders.insecure=true
-    --entryPoints.name.forwardedHeaders.trustedIPs="127.0.0.1,192.168.0.1"
+    --entryPoints.name.forwardedHeaders.trustedIPs=127.0.0.1,192.168.0.1
     ```
 
 ### Forwarded Header

docs/content/routing/overview.md

@@ -151,7 +151,7 @@ http:
         
         ```bash tab="CLI"
         # Listen on port 8081 for incoming requests
-        --entryPoints.web.address=":8081"
+        --entryPoints.web.address=:8081
         
         # Enable the file provider to define routers / middlewares / services in a file
         --providers.file.filename=dynamic_conf.toml

docs/content/routing/providers/docker.md

@@ -82,7 +82,7 @@ Attach labels to your containers and let Traefik do the rest!
     ```
 
     ```bash tab="CLI"
-    --providers.docker.endpoint="tcp://127.0.0.1:2375"
+    --providers.docker.endpoint=tcp://127.0.0.1:2375
     --providers.docker.swarmMode=true
     ```
 
@@ -165,7 +165,7 @@ For example, to change the rule, you could add the label ```traefik.http.routers
     See [entry points](../routers/index.md#entrypoints) for more information.
 
     ```yaml
-    - "traefik.http.routers.myrouter.entrypoints=web,websecure"
+    - "traefik.http.routers.myrouter.entrypoints=ep1,ep2"
     ```
 
 ??? info "`traefik.http.routers.<router_name>.middlewares`"
@@ -247,7 +247,8 @@ you'd add the label `traefik.http.services.<name-of-your-choice>.loadbalancer.pa
     Registers a port.
     Useful when the container exposes multiples ports.
 
-    Mandatory for Docker Swarm.
+    Mandatory for Docker Swarm (see the section ["Port Detection with Docker Swarm"](../../providers/docker.md#port-detection_1)).
+    {: #port }
 
     ```yaml
     - "traefik.http.services.myservice.loadbalancer.server.port=8080"

docs/content/routing/providers/marathon.md

@@ -67,7 +67,7 @@ For example, to change the routing rule, you could add the label ```"traefik.htt
     See [entry points](../routers/index.md#entrypoints) for more information. 
     
     ```json
-    "traefik.http.routers.myrouter.entrypoints": "web,websecure"
+    "traefik.http.routers.myrouter.entrypoints": "ep1,ep2"
     ```
 
 ??? info "`traefik.http.routers.<router_name>.middlewares`"

docs/content/routing/providers/rancher.md

@@ -72,7 +72,7 @@ For example, to change the rule, you could add the label ```traefik.http.routers
     See [entry points](../routers/index.md#entrypoints) for more information. 
     
     ```yaml
-    - "traefik.http.routers.myrouter.entrypoints=web,websecure"
+    - "traefik.http.routers.myrouter.entrypoints=ep1,ep2"
     ```
 
 ??? info "`traefik.http.routers.<router_name>.middlewares`"

docs/content/routing/routers/index.md

@@ -78,8 +78,8 @@ In the process, routers may use pieces of [middleware](../../middlewares/overvie
     
     ```bash tab="CLI"
     ## Static configuration
-    --entryPoints.web.address=":80"
+    --entryPoints.web.address=:80
-    --entryPoints.mysql.address=":3306"   
+    --entryPoints.mysql.address=:3306
     ```
 
 ## Configuring HTTP Routers
@@ -140,9 +140,9 @@ If you want to limit the router scope to a set of entry points, set the `entryPo
     
     ```bash tab="CLI"
     ## Static configuration
-    --entrypoints.web.address=":80"
+    --entrypoints.web.address=:80
-    --entrypoints.websecure.address=":443"
+    --entrypoints.websecure.address=:443
-    --entrypoints.other.address=":9090"
+    --entrypoints.other.address=:9090
     ```
 
 ??? example "Listens to Specific EntryPoints"
@@ -198,9 +198,9 @@ If you want to limit the router scope to a set of entry points, set the `entryPo
     
     ```bash tab="CLI"
     ## Static configuration
-    --entrypoints.web.address=":80"
+    --entrypoints.web.address=:80
-    --entrypoints.websecure.address=":443"
+    --entrypoints.websecure.address=:443
-    --entrypoints.other.address=":9090"
+    --entrypoints.other.address=:9090
     ```
 
 ### Rule
@@ -700,9 +700,9 @@ If you want to limit the router scope to a set of entry points, set the entry po
     
     ```bash tab="CLI"
     ## Static configuration
-    --entrypoints.web.address=":80"
+    --entrypoints.web.address=:80
-    --entrypoints.websecure.address=":443"
+    --entrypoints.websecure.address=:443
-    --entrypoints.other.address=":9090"
+    --entrypoints.other.address=:9090
     ```
 
 ??? example "Listens to Specific Entry Points"
@@ -764,9 +764,9 @@ If you want to limit the router scope to a set of entry points, set the entry po
     
     ```bash tab="CLI"
     ## Static configuration
-    --entrypoints.web.address=":80"
+    --entrypoints.web.address=:80
-    --entrypoints.websecure.address=":443"
+    --entrypoints.websecure.address=:443
-    --entrypoints.other.address=":9090"
+    --entrypoints.other.address=:9090
     ```
 
 ### Rule

docs/content/user-guides/grpc.md

@@ -32,7 +32,7 @@ api: {}
 ```
 
 ```yaml tab="CLI"
---entryPoints.web.address=":80"
+--entryPoints.web.address=:80
 --providers.file.filename=dynamic_conf.toml
 --api.insecure=true
 ```
@@ -153,7 +153,7 @@ api: {}
 ```
 
 ```yaml tab="CLI"
---entryPoints.websecure.address=":4443"
+--entryPoints.websecure.address=:4443
 # For secure connection on backend.local
 --serversTransport.rootCAs=./backend.cert
 --providers.file.filename=dynamic_conf.toml

go.mod

@@ -67,7 +67,7 @@ require (
 	github.com/opencontainers/runc v1.0.0-rc8 // indirect
 	github.com/opentracing/basictracer-go v1.0.0 // indirect
 	github.com/opentracing/opentracing-go v1.1.0
-	github.com/openzipkin-contrib/zipkin-go-opentracing v0.4.4
+	github.com/openzipkin-contrib/zipkin-go-opentracing v0.4.5
 	github.com/openzipkin/zipkin-go v0.2.1
 	github.com/patrickmn/go-cache v2.1.0+incompatible
 	github.com/philhofer/fwd v1.0.0 // indirect

go.sum

@@ -454,8 +454,8 @@ github.com/opentracing/basictracer-go v1.0.0 h1:YyUAhaEfjoWXclZVJ9sGoNct7j4TVk7l
 github.com/opentracing/basictracer-go v1.0.0/go.mod h1:QfBfYuafItcjQuMwinw9GhYKwFXS9KnPs5lxoYwgW74=
 github.com/opentracing/opentracing-go v1.1.0 h1:pWlfV3Bxv7k65HYwkikxat0+s3pV4bsqf19k25Ur8rU=
 github.com/opentracing/opentracing-go v1.1.0/go.mod h1:UkNAQd3GIcIGf0SeVgPpRdFStlNbqXla1AfSYxPUl2o=
-github.com/openzipkin-contrib/zipkin-go-opentracing v0.4.4 h1:bzTJRoOZEN7uI1gq594S5HhMYNSud4FKUEwd4aFbsEI=
+github.com/openzipkin-contrib/zipkin-go-opentracing v0.4.5 h1:ZCnq+JUrvXcDVhX/xRolRBZifmabN1HcS1wrPSvxhrU=
-github.com/openzipkin-contrib/zipkin-go-opentracing v0.4.4/go.mod h1:/wsWhb9smxSfWAKL3wpBW7V8scJMt8N8gnaMCS9E/cA=
+github.com/openzipkin-contrib/zipkin-go-opentracing v0.4.5/go.mod h1:/wsWhb9smxSfWAKL3wpBW7V8scJMt8N8gnaMCS9E/cA=
 github.com/openzipkin/zipkin-go v0.1.6/go.mod h1:QgAqvLzwWbR/WpD4A3cGpPtJrZXNIiJc5AZX7/PBEpw=
 github.com/openzipkin/zipkin-go v0.2.1 h1:noL5/5Uf1HpVl3wNsfkZhIKbSWCVi5jgqkONNx8PXcA=
 github.com/openzipkin/zipkin-go v0.2.1/go.mod h1:NaW6tEwdmWMaCDZzg8sh+IBNOxHMPnhQw8ySjnjRyN4=

integration/fixtures/healthcheck/multiple-routers-one-same-service.toml

@@ -0,0 +1,40 @@
+[global]
+  checkNewVersion = false
+  sendAnonymousUsage = false
+
+[log]
+  level = "DEBUG"
+
+[entryPoints]
+  [entryPoints.web1]
+    address = ":8000"
+  [entryPoints.web2]
+    address = ":9000"
+
+[api]
+  insecure = true
+
+[providers.file]
+  filename = "{{ .SelfFilename }}"
+
+## dynamic configuration ##
+
+[http.routers]
+  [http.routers.router1]
+    entryPoints = ["web1"]
+    service = "service1"
+    rule = "Host(`test.localhost`)"
+
+  [http.routers.router2]
+    entryPoints = ["web2"]
+    service = "service1"
+    rule = "Host(`test.localhost`)"
+
+[http.services]
+  [http.services.service1.loadBalancer]
+    [http.services.service1.loadBalancer.healthcheck]
+      path = "/health"
+      interval = "1s"
+      timeout = "0.9s"
+    [[http.services.service1.loadBalancer.servers]]
+      url = "http://{{.Server1}}:80"

integration/healthcheck_test.go

@@ -205,3 +205,69 @@ func (s *HealthCheckSuite) TestPortOverload(c *check.C) {
 	err = try.Request(frontendHealthReq, 3*time.Second, try.StatusCodeIs(http.StatusServiceUnavailable))
 	c.Assert(err, checker.IsNil)
 }
+
+// Checks if all the loadbalancers created will correctly update the server status
+func (s *HealthCheckSuite) TestMultipleRoutersOnSameService(c *check.C) {
+	file := s.adaptFile(c, "fixtures/healthcheck/multiple-routers-one-same-service.toml", struct {
+		Server1 string
+	}{s.whoami1IP})
+	defer os.Remove(file)
+
+	cmd, display := s.traefikCmd(withConfigFile(file))
+	defer display(c)
+	err := cmd.Start()
+	c.Assert(err, checker.IsNil)
+	defer cmd.Process.Kill()
+
+	// wait for traefik
+	err = try.GetRequest("http://127.0.0.1:8080/api/rawdata", 60*time.Second, try.BodyContains("Host(`test.localhost`)"))
+	c.Assert(err, checker.IsNil)
+
+	// Set whoami health to 200 to be sure to start with the wanted status
+	client := &http.Client{}
+	statusOkReq, err := http.NewRequest(http.MethodPost, "http://"+s.whoami1IP+"/health", bytes.NewBuffer([]byte("200")))
+	c.Assert(err, checker.IsNil)
+	_, err = client.Do(statusOkReq)
+	c.Assert(err, checker.IsNil)
+
+	// check healthcheck on web1 entrypoint
+	healthReqWeb1, err := http.NewRequest(http.MethodGet, "http://127.0.0.1:8000/health", nil)
+	c.Assert(err, checker.IsNil)
+	healthReqWeb1.Host = "test.localhost"
+	err = try.Request(healthReqWeb1, 1*time.Second, try.StatusCodeIs(http.StatusOK))
+	c.Assert(err, checker.IsNil)
+
+	// check healthcheck on web2 entrypoint
+	healthReqWeb2, err := http.NewRequest(http.MethodGet, "http://127.0.0.1:9000/health", nil)
+	c.Assert(err, checker.IsNil)
+	healthReqWeb2.Host = "test.localhost"
+
+	err = try.Request(healthReqWeb2, 500*time.Millisecond, try.StatusCodeIs(http.StatusOK))
+	c.Assert(err, checker.IsNil)
+
+	// Set whoami health to 500
+	statusInternalServerErrorReq, err := http.NewRequest(http.MethodPost, "http://"+s.whoami1IP+"/health", bytes.NewBuffer([]byte("500")))
+	c.Assert(err, checker.IsNil)
+	_, err = client.Do(statusInternalServerErrorReq)
+	c.Assert(err, checker.IsNil)
+
+	// Verify no backend service is available due to failing health checks
+	err = try.Request(healthReqWeb1, 3*time.Second, try.StatusCodeIs(http.StatusServiceUnavailable))
+	c.Assert(err, checker.IsNil)
+
+	err = try.Request(healthReqWeb2, 3*time.Second, try.StatusCodeIs(http.StatusServiceUnavailable))
+	c.Assert(err, checker.IsNil)
+
+	// Change one whoami health to 200
+	statusOKReq1, err := http.NewRequest(http.MethodPost, "http://"+s.whoami1IP+"/health", bytes.NewBuffer([]byte("200")))
+	c.Assert(err, checker.IsNil)
+	_, err = client.Do(statusOKReq1)
+	c.Assert(err, checker.IsNil)
+
+	// Verify health check
+	err = try.Request(healthReqWeb1, 3*time.Second, try.StatusCodeIs(http.StatusOK))
+	c.Assert(err, checker.IsNil)
+
+	err = try.Request(healthReqWeb2, 3*time.Second, try.StatusCodeIs(http.StatusOK))
+	c.Assert(err, checker.IsNil)
+}

pkg/healthcheck/healthcheck.go

@@ -25,14 +25,20 @@ const (
 var singleton *HealthCheck
 var once sync.Once
 
-// BalancerHandler includes functionality for load-balancing management.
+// Balancer is the set of operations required to manage the list of servers in a
-type BalancerHandler interface {
+// load-balancer.
-	ServeHTTP(w http.ResponseWriter, req *http.Request)
+type Balancer interface {
 	Servers() []*url.URL
 	RemoveServer(u *url.URL) error
 	UpsertServer(u *url.URL, options ...roundrobin.ServerOption) error
 }
 
+// BalancerHandler includes functionality for load-balancing management.
+type BalancerHandler interface {
+	ServeHTTP(w http.ResponseWriter, req *http.Request)
+	Balancer
+}
+
 // metricsRegistry is a local interface in the health check package, exposing only the required metrics
 // necessary for the health check package. This makes it easier for the tests.
 type metricsRegistry interface {
@@ -49,7 +55,7 @@ type Options struct {
 	Transport http.RoundTripper
 	Interval  time.Duration
 	Timeout   time.Duration
-	LB        BalancerHandler
+	LB        Balancer
 }
 
 func (opt Options) String() string {
@@ -146,18 +152,18 @@ func (hc *HealthCheck) checkBackend(ctx context.Context, backend *BackendConfig)
 	enabledURLs := backend.LB.Servers()
 	var newDisabledURLs []backendURL
 	// FIXME re enable metrics
-	for _, disableURL := range backend.disabledURLs {
+	for _, disabledURL := range backend.disabledURLs {
 		// FIXME serverUpMetricValue := float64(0)
-		if err := checkHealth(disableURL.url, backend); err == nil {
+		if err := checkHealth(disabledURL.url, backend); err == nil {
 			logger.Warnf("Health check up: Returning to server list. Backend: %q URL: %q Weight: %d",
-				backend.name, disableURL.url.String(), disableURL.weight)
+				backend.name, disabledURL.url.String(), disabledURL.weight)
-			if err = backend.LB.UpsertServer(disableURL.url, roundrobin.Weight(disableURL.weight)); err != nil {
+			if err = backend.LB.UpsertServer(disabledURL.url, roundrobin.Weight(disabledURL.weight)); err != nil {
 				logger.Error(err)
 			}
 			// FIXME serverUpMetricValue = 1
 		} else {
-			logger.Warnf("Health check still failing. Backend: %q URL: %q Reason: %s", backend.name, disableURL.url.String(), err)
+			logger.Warnf("Health check still failing. Backend: %q URL: %q Reason: %s", backend.name, disabledURL.url.String(), err)
-			newDisabledURLs = append(newDisabledURLs, disableURL)
+			newDisabledURLs = append(newDisabledURLs, disabledURL)
 		}
 		// FIXME labelValues := []string{"backend", backend.name, "url", backendurl.url.String()}
 		// FIXME hc.metrics.BackendServerUpGauge().With(labelValues...).Set(serverUpMetricValue)
@@ -177,7 +183,7 @@ func (hc *HealthCheck) checkBackend(ctx context.Context, backend *BackendConfig)
 					weight = 1
 				}
 			}
-			logger.Warnf("Health check failed: Remove from server list. Backend: %q URL: %q Weight: %d Reason: %s", backend.name, enableURL.String(), weight, err)
+			logger.Warnf("Health check failed, removing from server list. Backend: %q URL: %q Weight: %d Reason: %s", backend.name, enableURL.String(), weight, err)
 			if err := backend.LB.RemoveServer(enableURL); err != nil {
 				logger.Error(err)
 			}
@@ -281,3 +287,38 @@ func (lb *LbStatusUpdater) UpsertServer(u *url.URL, options ...roundrobin.Server
 	}
 	return err
 }
+
+// Balancers is a list of Balancers(s) that implements the Balancer interface.
+type Balancers []Balancer
+
+// Servers returns the servers url from all the BalancerHandler
+func (b Balancers) Servers() []*url.URL {
+	var servers []*url.URL
+	for _, lb := range b {
+		servers = append(servers, lb.Servers()...)
+	}
+
+	return servers
+}
+
+// RemoveServer removes the given server from all the BalancerHandler,
+// and updates the status of the server to "DOWN".
+func (b Balancers) RemoveServer(u *url.URL) error {
+	for _, lb := range b {
+		if err := lb.RemoveServer(u); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// UpsertServer adds the given server to all the BalancerHandler,
+// and updates the status of the server to "UP".
+func (b Balancers) UpsertServer(u *url.URL, options ...roundrobin.ServerOption) error {
+	for _, lb := range b {
+		if err := lb.UpsertServer(u, options...); err != nil {
+			return err
+		}
+	}
+	return nil
+}

pkg/middlewares/accesslog/logdata.go

@@ -116,7 +116,18 @@ type CoreLogData map[string]interface{}
 // LogData is the data captured by the middleware so that it can be logged.
 type LogData struct {
 	Core               CoreLogData
-	Request            http.Header
+	Request            request
 	OriginResponse     http.Header
-	DownstreamResponse http.Header
+	DownstreamResponse downstreamResponse
+}
+
+type downstreamResponse struct {
+	headers http.Header
+	status  int
+	size    int64
+}
+
+type request struct {
+	headers http.Header
+	count   int64
 }

pkg/middlewares/accesslog/logger.go

@@ -47,8 +47,6 @@ func (n noopCloser) Close() error {
 
 type handlerParams struct {
 	logDataTable *LogData
-	crr          *captureRequestReader
-	crw          *captureResponseWriter
 }
 
 // Handler will write each request and its response to the access log.
@@ -122,7 +120,7 @@ func NewHandler(config *types.AccessLog) (*Handler, error) {
 		go func() {
 			defer logHandler.wg.Done()
 			for handlerParams := range logHandler.logHandlerChan {
-				logHandler.logTheRoundTrip(handlerParams.logDataTable, handlerParams.crr, handlerParams.crw)
+				logHandler.logTheRoundTrip(handlerParams.logDataTable)
 			}
 		}()
 	}
@@ -162,7 +160,12 @@ func (h *Handler) ServeHTTP(rw http.ResponseWriter, req *http.Request, next http
 		StartLocal: now.Local(),
 	}
 
-	logDataTable := &LogData{Core: core, Request: req.Header}
+	logDataTable := &LogData{
+		Core: core,
+		Request: request{
+			headers: req.Header,
+		},
+	}
 
 	reqWithDataTable := req.WithContext(context.WithValue(req.Context(), DataTableKey, logDataTable))
 
@@ -205,16 +208,21 @@ func (h *Handler) ServeHTTP(rw http.ResponseWriter, req *http.Request, next http
 		core[ClientUsername] = usernameIfPresent(reqWithDataTable.URL)
 	}
 
-	logDataTable.DownstreamResponse = crw.Header()
+	logDataTable.DownstreamResponse = downstreamResponse{
+		headers: crw.Header().Clone(),
+		status:  crw.Status(),
+		size:    crw.Size(),
+	}
+	if crr != nil {
+		logDataTable.Request.count = crr.count
+	}
 
 	if h.config.BufferingSize > 0 {
 		h.logHandlerChan <- handlerParams{
 			logDataTable: logDataTable,
-			crr:          crr,
-			crw:          crw,
 		}
 	} else {
-		h.logTheRoundTrip(logDataTable, crr, crw)
+		h.logTheRoundTrip(logDataTable)
 	}
 }
 
@@ -264,7 +272,7 @@ func usernameIfPresent(theURL *url.URL) string {
 }
 
 // Logging handler to log frontend name, backend name, and elapsed time.
-func (h *Handler) logTheRoundTrip(logDataTable *LogData, crr *captureRequestReader, crw *captureResponseWriter) {
+func (h *Handler) logTheRoundTrip(logDataTable *LogData) {
 	core := logDataTable.Core
 
 	retryAttempts, ok := core[RetryAttempts].(int)
@@ -272,23 +280,22 @@ func (h *Handler) logTheRoundTrip(logDataTable *LogData, crr *captureRequestRead
 		retryAttempts = 0
 	}
 	core[RetryAttempts] = retryAttempts
+	core[RequestContentSize] = logDataTable.Request.count
 
-	if crr != nil {
+	status := logDataTable.DownstreamResponse.status
-		core[RequestContentSize] = crr.count
+	core[DownstreamStatus] = status
-	}
-
-	core[DownstreamStatus] = crw.Status()
 
 	// n.b. take care to perform time arithmetic using UTC to avoid errors at DST boundaries.
 	totalDuration := time.Now().UTC().Sub(core[StartUTC].(time.Time))
 	core[Duration] = totalDuration
 
-	if h.keepAccessLog(crw.Status(), retryAttempts, totalDuration) {
+	if h.keepAccessLog(status, retryAttempts, totalDuration) {
-		core[DownstreamContentSize] = crw.Size()
+		size := logDataTable.DownstreamResponse.size
+		core[DownstreamContentSize] = size
 		if original, ok := core[OriginContentSize]; ok {
 			o64 := original.(int64)
-			if crw.Size() != o64 && crw.Size() != 0 {
+			if size != o64 && size != 0 {
-				core[GzipRatio] = float64(o64) / float64(crw.Size())
+				core[GzipRatio] = float64(o64) / float64(size)
 			}
 		}
 
@@ -305,9 +312,9 @@ func (h *Handler) logTheRoundTrip(logDataTable *LogData, crr *captureRequestRead
 			}
 		}
 
-		h.redactHeaders(logDataTable.Request, fields, "request_")
+		h.redactHeaders(logDataTable.Request.headers, fields, "request_")
 		h.redactHeaders(logDataTable.OriginResponse, fields, "origin_")
-		h.redactHeaders(logDataTable.DownstreamResponse, fields, "downstream_")
+		h.redactHeaders(logDataTable.DownstreamResponse.headers, fields, "downstream_")
 
 		h.mu.Lock()
 		defer h.mu.Unlock()

pkg/middlewares/accesslog/logger_test.go

@@ -192,6 +192,7 @@ func TestLoggerJSON(t *testing.T) {
 				Format:   JSONFormat,
 			},
 			expected: map[string]func(t *testing.T, value interface{}){
+				RequestContentSize:        assertFloat64(0),
 				RequestHost:               assertString(testHostname),
 				RequestAddr:               assertString(testHostname),
 				RequestMethod:             assertString(testMethod),

pkg/middlewares/headers/headers.go

@@ -221,13 +221,11 @@ func (s *Header) processCorsHeaders(rw http.ResponseWriter, req *http.Request) b
 	}
 
 	reqAcMethod := req.Header.Get("Access-Control-Request-Method")
-	reqAcHeaders := req.Header.Get("Access-Control-Request-Headers")
 	originHeader := req.Header.Get("Origin")
 
-	if reqAcMethod != "" && reqAcHeaders != "" && originHeader != "" && req.Method == http.MethodOptions {
+	if reqAcMethod != "" && originHeader != "" && req.Method == http.MethodOptions {
 		// If the request is an OPTIONS request with an Access-Control-Request-Method header,
-		// and Access-Control-Request-Headers headers, and Origin headers,
+		// and Origin headers, then it is a CORS preflight request,
-		// then it is a CORS preflight request,
 		// and we need to build a custom response: https://www.w3.org/TR/cors/#preflight-request
 		if s.headers.AccessControlAllowCredentials {
 			rw.Header().Set("Access-Control-Allow-Credentials", "true")

pkg/middlewares/headers/headers_test.go

@@ -275,6 +275,25 @@ func TestCORSPreflights(t *testing.T) {
 				"Access-Control-Allow-Headers": {"origin,X-Forwarded-For"},
 			},
 		},
+		{
+			desc: "No Request Headers Preflight",
+			header: NewHeader(emptyHandler, dynamic.Headers{
+				AccessControlAllowMethods: []string{"GET", "OPTIONS", "PUT"},
+				AccessControlAllowOrigin:  "*",
+				AccessControlAllowHeaders: []string{"origin", "X-Forwarded-For"},
+				AccessControlMaxAge:       600,
+			}),
+			requestHeaders: map[string][]string{
+				"Access-Control-Request-Method": {"GET", "OPTIONS"},
+				"Origin":                        {"https://foo.bar.org"},
+			},
+			expected: map[string][]string{
+				"Access-Control-Allow-Origin":  {"*"},
+				"Access-Control-Max-Age":       {"600"},
+				"Access-Control-Allow-Methods": {"GET,OPTIONS,PUT"},
+				"Access-Control-Allow-Headers": {"origin,X-Forwarded-For"},
+			},
+		},
 	}
 
 	for _, test := range testCases {

pkg/middlewares/tracing/entrypoint.go

@@ -34,7 +34,11 @@ type entryPointMiddleware struct {
 }
 
 func (e *entryPointMiddleware) ServeHTTP(rw http.ResponseWriter, req *http.Request) {
-	spanCtx, _ := e.Extract(opentracing.HTTPHeaders, tracing.HTTPHeadersCarrier(req.Header))
+	spanCtx, err := e.Extract(opentracing.HTTPHeaders, opentracing.HTTPHeadersCarrier(req.Header))
+	if err != nil {
+		log.FromContext(middlewares.GetLoggerCtx(req.Context(), "tracing", entryPointTypeName)).
+			Debugf("Failed to extract the context: %v", err)
+	}
 
 	span, req, finish := e.StartSpanf(req, ext.SpanKindRPCServerEnum, "EntryPoint", []string{e.entryPoint, req.Host}, " ", ext.RPCServerOption(spanCtx))
 	defer finish()

pkg/provider/rancher/rancher.go

@@ -193,7 +193,7 @@ func (p *Provider) parseMetadataSourcedRancherData(ctx context.Context, stacks [
 			}
 
 			service := rancherData{
-				Name:       service.Name + "/" + stack.Name,
+				Name:       service.Name + "_" + stack.Name,
 				State:      service.State,
 				Labels:     service.Labels,
 				Port:       servicePort,

pkg/server/service/service.go

@@ -40,7 +40,7 @@ func NewManager(configs map[string]*runtime.ServiceInfo, defaultRoundTripper htt
 		metricsRegistry:     metricsRegistry,
 		bufferPool:          newBufferPool(),
 		defaultRoundTripper: defaultRoundTripper,
-		balancers:           make(map[string][]healthcheck.BalancerHandler),
+		balancers:           make(map[string]healthcheck.Balancers),
 		configs:             configs,
 	}
 }
@@ -51,7 +51,11 @@ type Manager struct {
 	metricsRegistry     metrics.Registry
 	bufferPool          httputil.BufferPool
 	defaultRoundTripper http.RoundTripper
-	balancers           map[string][]healthcheck.BalancerHandler
+	// balancers is the map of all Balancers, keyed by service name.
+	// There is one Balancer per service handler, and there is one service handler per reference to a service
+	// (e.g. if 2 routers refer to the same service name, 2 service handlers are created),
+	// which is why there is not just one Balancer per service name.
+	balancers map[string]healthcheck.Balancers
 	configs   map[string]*runtime.ServiceInfo
 }
 
@@ -92,14 +96,14 @@ func (m *Manager) BuildHTTP(rootCtx context.Context, serviceName string, respons
 		}
 	case conf.Weighted != nil:
 		var err error
-		lb, err = m.getLoadBalancerWRRServiceHandler(ctx, serviceName, conf.Weighted, responseModifier)
+		lb, err = m.getWRRServiceHandler(ctx, serviceName, conf.Weighted, responseModifier)
 		if err != nil {
 			conf.AddError(err, true)
 			return nil, err
 		}
 	case conf.Mirroring != nil:
 		var err error
-		lb, err = m.getLoadBalancerMirrorServiceHandler(ctx, serviceName, conf.Mirroring, responseModifier)
+		lb, err = m.getMirrorServiceHandler(ctx, conf.Mirroring, responseModifier)
 		if err != nil {
 			conf.AddError(err, true)
 			return nil, err
@@ -113,7 +117,7 @@ func (m *Manager) BuildHTTP(rootCtx context.Context, serviceName string, respons
 	return lb, nil
 }
 
-func (m *Manager) getLoadBalancerMirrorServiceHandler(ctx context.Context, serviceName string, config *dynamic.Mirroring, responseModifier func(*http.Response) error) (http.Handler, error) {
+func (m *Manager) getMirrorServiceHandler(ctx context.Context, config *dynamic.Mirroring, responseModifier func(*http.Response) error) (http.Handler, error) {
 	serviceHandler, err := m.BuildHTTP(ctx, config.Service, responseModifier)
 	if err != nil {
 		return nil, err
@@ -134,7 +138,7 @@ func (m *Manager) getLoadBalancerMirrorServiceHandler(ctx context.Context, servi
 	return handler, nil
 }
 
-func (m *Manager) getLoadBalancerWRRServiceHandler(ctx context.Context, serviceName string, config *dynamic.WeightedRoundRobin, responseModifier func(*http.Response) error) (http.Handler, error) {
+func (m *Manager) getWRRServiceHandler(ctx context.Context, serviceName string, config *dynamic.WeightedRoundRobin, responseModifier func(*http.Response) error) (http.Handler, error) {
 	// TODO Handle accesslog and metrics with multiple service name
 	if config.Sticky != nil && config.Sticky.Cookie != nil {
 		config.Sticky.Cookie.Name = cookie.GetName(config.Sticky.Cookie.Name, serviceName)
@@ -200,15 +204,12 @@ func (m *Manager) LaunchHealthCheck() {
 	for serviceName, balancers := range m.balancers {
 		ctx := log.With(context.Background(), log.Str(log.ServiceName, serviceName))
 
-		// TODO aggregate
-		balancer := balancers[0]
-
 		// TODO Should all the services handle healthcheck? Handle different types
 		service := m.configs[serviceName].LoadBalancer
 
 		// Health Check
 		var backendHealthCheck *healthcheck.BackendConfig
-		if hcOpts := buildHealthCheckOptions(ctx, balancer, serviceName, service.HealthCheck); hcOpts != nil {
+		if hcOpts := buildHealthCheckOptions(ctx, balancers, serviceName, service.HealthCheck); hcOpts != nil {
 			log.FromContext(ctx).Debugf("Setting up healthcheck for service %s with %s", serviceName, *hcOpts)
 
 			hcOpts.Transport = m.defaultRoundTripper
@@ -224,7 +225,7 @@ func (m *Manager) LaunchHealthCheck() {
 	healthcheck.GetHealthCheck().SetBackendsConfiguration(context.Background(), backendConfigs)
 }
 
-func buildHealthCheckOptions(ctx context.Context, lb healthcheck.BalancerHandler, backend string, hc *dynamic.HealthCheck) *healthcheck.Options {
+func buildHealthCheckOptions(ctx context.Context, lb healthcheck.Balancer, backend string, hc *dynamic.HealthCheck) *healthcheck.Options {
 	if hc == nil || hc.Path == "" {
 		return nil
 	}

pkg/tracing/carrier.go

@@ -1,25 +0,0 @@
-package tracing
-
-import "net/http"
-
-// HTTPHeadersCarrier custom implementation to fix duplicated headers
-// It has been fixed in https://github.com/opentracing/opentracing-go/pull/191
-type HTTPHeadersCarrier http.Header
-
-// Set conforms to the TextMapWriter interface.
-func (c HTTPHeadersCarrier) Set(key, val string) {
-	h := http.Header(c)
-	h.Set(key, val)
-}
-
-// ForeachKey conforms to the TextMapReader interface.
-func (c HTTPHeadersCarrier) ForeachKey(handler func(key, val string) error) error {
-	for k, vals := range c {
-		for _, v := range vals {
-			if err := handler(k, v); err != nil {
-				return err
-			}
-		}
-	}
-	return nil
-}

pkg/tracing/tracing.go

@@ -134,7 +134,7 @@ func InjectRequestHeaders(r *http.Request) {
 		err := opentracing.GlobalTracer().Inject(
 			span.Context(),
 			opentracing.HTTPHeaders,
-			HTTPHeadersCarrier(r.Header))
+			opentracing.HTTPHeadersCarrier(r.Header))
 		if err != nil {
 			log.FromContext(r.Context()).Error(err)
 		}

webui/src/_services/HttpService.js

@@ -3,16 +3,13 @@ import { APP } from '../_helpers/APP'
 const apiBase = '/http'
 
 function getAllRouters (params) {
-  return APP.api.get(`${apiBase}/routers?search=${params.query}&status=${params.status}`)
-    .then(body => {
-      const total = body.data ? body.data.length : 0
   return APP.api.get(`${apiBase}/routers?search=${params.query}&status=${params.status}&per_page=${params.limit}&page=${params.page}`)
     .then(body => {
+      const total = body.data ? body.data.length : 0
       console.log('Success -> HttpService -> getAllRouters', body.data)
       // TODO - suggestion: add the total-pages in api response to optimize the query
       return { data: body.data || [], total }
     })
-    })
 }
 
 function getRouterByName (name) {
@@ -24,16 +21,13 @@ function getRouterByName (name) {
 }
 
 function getAllServices (params) {
-  return APP.api.get(`${apiBase}/services?search=${params.query}&status=${params.status}`)
-    .then(body => {
-      const total = body.data ? body.data.length : 0
   return APP.api.get(`${apiBase}/services?search=${params.query}&status=${params.status}&per_page=${params.limit}&page=${params.page}`)
     .then(body => {
+      const total = body.data ? body.data.length : 0
       console.log('Success -> HttpService -> getAllServices', body.data)
       // TODO - suggestion: add the total-pages in api response to optimize the query
       return { data: body.data || [], total }
     })
-    })
 }
 
 function getServiceByName (name) {
@@ -45,16 +39,13 @@ function getServiceByName (name) {
 }
 
 function getAllMiddlewares (params) {
-  return APP.api.get(`${apiBase}/middlewares?search=${params.query}&status=${params.status}`)
-    .then(body => {
-      const total = body.data ? body.data.length : 0
   return APP.api.get(`${apiBase}/middlewares?search=${params.query}&status=${params.status}&per_page=${params.limit}&page=${params.page}`)
     .then(body => {
+      const total = body.data ? body.data.length : 0
       console.log('Success -> HttpService -> getAllMiddlewares', body.data)
       // TODO - suggestion: add the total-pages in api response to optimize the query
       return { data: body.data || [], total }
     })
-    })
 }
 
 function getMiddlewareByName (name) {

webui/src/_services/TcpService.js

@@ -3,16 +3,13 @@ import { APP } from '../_helpers/APP'
 const apiBase = '/tcp'
 
 function getAllRouters (params) {
-  return APP.api.get(`${apiBase}/routers?search=${params.query}&status=${params.status}`)
-    .then(body => {
-      const total = body.data ? body.data.length : 0
   return APP.api.get(`${apiBase}/routers?search=${params.query}&status=${params.status}&per_page=${params.limit}&page=${params.page}`)
     .then(body => {
+      const total = body.data ? body.data.length : 0
       console.log('Success -> HttpService -> getAllRouters', body.data)
       // TODO - suggestion: add the total-pages in api response to optimize the query
       return { data: body.data || [], total }
     })
-    })
 }
 
 function getRouterByName (name) {
@@ -24,16 +21,13 @@ function getRouterByName (name) {
 }
 
 function getAllServices (params) {
-  return APP.api.get(`${apiBase}/services?search=${params.query}&status=${params.status}`)
-    .then(body => {
-      const total = body.data ? body.data.length : 0
   return APP.api.get(`${apiBase}/services?search=${params.query}&status=${params.status}&per_page=${params.limit}&page=${params.page}`)
     .then(body => {
+      const total = body.data ? body.data.length : 0
       console.log('Success -> HttpService -> getAllServices', body.data)
       // TODO - suggestion: add the total-pages in api response to optimize the query
       return { data: body.data || [], total }
     })
-    })
 }
 
 function getServiceByName (name) {

webui/src/components/_commons/PanelRouterDetails.vue

@@ -27,7 +27,7 @@
             <div class="text-subtitle2">RULE</div>
             <q-chip
               dense
-              class="app-chip app-chip-rule">
+              class="app-chip app-chip-wrap app-chip-rule">
               {{ data.rule }}
             </q-chip>
           </div>
@@ -39,7 +39,7 @@
             <div class="text-subtitle2">NAME</div>
             <q-chip
               dense
-              class="app-chip app-chip-name">
+              class="app-chip app-chip-wrap app-chip-name">
               {{ data.name }}
             </q-chip>
           </div>
@@ -66,7 +66,7 @@
               dense
               clickable
               @click.native="$router.push({ path: `/${protocol}/services/${getServiceId()}`})"
-              class="app-chip app-chip-service">
+              class="app-chip app-chip-wrap app-chip-service">
               {{ data.service }}
             </q-chip>
           </div>

webui/src/components/_commons/PanelServiceDetails.vue

@@ -45,7 +45,7 @@
           </div>
         </div>
       </q-card-section>
-      <q-card-section v-if="data.loadBalancer">
+      <q-card-section v-if="data.loadBalancer && $route.meta.protocol !== 'tcp'">
         <div class="row items-start no-wrap">
           <div class="col">
             <div class="text-subtitle2">Pass Host Header</div>
@@ -54,6 +54,19 @@
         </div>
       </q-card-section>
 
+      <q-card-section v-if="data.loadBalancer.terminationDelay">
+        <div class="row items-start no-wrap">
+          <div class="col">
+            <div class="text-subtitle2">Termination Delay</div>
+            <q-chip
+              dense
+              class="app-chip app-chip-name">
+              {{ data.loadBalancer.terminationDelay }} ms
+            </q-chip>
+          </div>
+        </div>
+      </q-card-section>
+
       <q-separator v-if="sticky" />
       <StickyServiceDetails v-if="sticky" :sticky="sticky" :dense="dense"/>
     </q-scroll-area>