traefik/docs/content/reference/static-configuration/cli-ref.md

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`--accesslog`:  
Access log settings. (Default: ```false```)

`--accesslog.bufferingsize`:  
Number of access log lines to process in a buffered way. (Default: ```0```)

`--accesslog.fields.defaultmode`:  
Default mode for fields: keep | drop (Default: ```keep```)

`--accesslog.fields.headers.defaultmode`:  
Default mode for fields: keep | drop | redact (Default: ```drop```)

`--accesslog.fields.headers.names.<name>`:  
Override mode for headers

`--accesslog.fields.names.<name>`:  
Override mode for fields

`--accesslog.filepath`:  
Access log file path. Stdout is used when omitted or empty.

`--accesslog.filters.minduration`:  
Keep access logs when request took longer than the specified duration. (Default: ```0```)

`--accesslog.filters.retryattempts`:  
Keep access logs when at least one retry happened. (Default: ```false```)

`--accesslog.filters.statuscodes`:  
Keep access logs with status codes in the specified range.

`--accesslog.format`:  
Access log format: json | common (Default: ```common```)

`--api`:  
Enable api/dashboard. (Default: ```false```)

`--api.dashboard`:  
Activate dashboard. (Default: ```true```)

`--api.debug`:  
Enable additional endpoints for debugging and profiling. (Default: ```false```)

`--api.insecure`:  
Activate API directly on the entryPoint named traefik. (Default: ```false```)

`--certificatesresolvers.<name>`:  
Certificates resolvers configuration. (Default: ```false```)

`--certificatesresolvers.<name>.acme.caserver`:  
CA server to use. (Default: ```https://acme-v02.api.letsencrypt.org/directory```)

`--certificatesresolvers.<name>.acme.dnschallenge`:  
Activate DNS-01 Challenge. (Default: ```false```)

`--certificatesresolvers.<name>.acme.dnschallenge.delaybeforecheck`:  
Assume DNS propagates after a delay in seconds rather than finding and querying nameservers. (Default: ```0```)

`--certificatesresolvers.<name>.acme.dnschallenge.disablepropagationcheck`:  
Disable the DNS propagation checks before notifying ACME that the DNS challenge is ready. [not recommended] (Default: ```false```)

`--certificatesresolvers.<name>.acme.dnschallenge.provider`:  
Use a DNS-01 based challenge provider rather than HTTPS.

`--certificatesresolvers.<name>.acme.dnschallenge.resolvers`:  
Use following DNS servers to resolve the FQDN authority.

`--certificatesresolvers.<name>.acme.email`:  
Email address used for registration.

`--certificatesresolvers.<name>.acme.httpchallenge`:  
Activate HTTP-01 Challenge. (Default: ```false```)

`--certificatesresolvers.<name>.acme.httpchallenge.entrypoint`:  
HTTP challenge EntryPoint

`--certificatesresolvers.<name>.acme.keytype`:  
KeyType used for generating certificate private key. Allow value 'EC256', 'EC384', 'RSA2048', 'RSA4096', 'RSA8192'. (Default: ```RSA4096```)

`--certificatesresolvers.<name>.acme.storage`:  
Storage to use. (Default: ```acme.json```)

`--certificatesresolvers.<name>.acme.tlschallenge`:  
Activate TLS-ALPN-01 Challenge. (Default: ```true```)

`--entrypoints.<name>`:  
Entry points definition. (Default: ```false```)

`--entrypoints.<name>.address`:  
Entry point address.

`--entrypoints.<name>.forwardedheaders.insecure`:  
Trust all forwarded headers. (Default: ```false```)

`--entrypoints.<name>.forwardedheaders.trustedips`:  
Trust only forwarded headers from selected IPs.

`--entrypoints.<name>.http`:  
HTTP configuration.

`--entrypoints.<name>.http.middlewares`:  
Default middlewares for the routers linked to the entry point.

`--entrypoints.<name>.http.redirections.entrypoint.permanent`:  
Applies a permanent redirection. (Default: ```true```)

`--entrypoints.<name>.http.redirections.entrypoint.priority`:  
Priority of the generated router. (Default: ```2147483647```)

`--entrypoints.<name>.http.redirections.entrypoint.scheme`:  
Scheme used for the redirection. (Default: ```https```)

`--entrypoints.<name>.http.redirections.entrypoint.to`:  
Targeted entry point of the redirection.

`--entrypoints.<name>.http.tls`:  
Default TLS configuration for the routers linked to the entry point. (Default: ```false```)

`--entrypoints.<name>.http.tls.certresolver`:  
Default certificate resolver for the routers linked to the entry point.

`--entrypoints.<name>.http.tls.domains`:  
Default TLS domains for the routers linked to the entry point.

`--entrypoints.<name>.http.tls.domains[n].main`:  
Default subject name.

`--entrypoints.<name>.http.tls.domains[n].sans`:  
Subject alternative names.

`--entrypoints.<name>.http.tls.options`:  
Default TLS options for the routers linked to the entry point.

`--entrypoints.<name>.proxyprotocol`:  
Proxy-Protocol configuration. (Default: ```false```)

`--entrypoints.<name>.proxyprotocol.insecure`:  
Trust all. (Default: ```false```)

`--entrypoints.<name>.proxyprotocol.trustedips`:  
Trust only selected IPs.

`--entrypoints.<name>.transport.lifecycle.gracetimeout`:  
Duration to give active requests a chance to finish before Traefik stops. (Default: ```10```)

`--entrypoints.<name>.transport.lifecycle.requestacceptgracetimeout`:  
Duration to keep accepting requests before Traefik initiates the graceful shutdown procedure. (Default: ```0```)

`--entrypoints.<name>.transport.respondingtimeouts.idletimeout`:  
IdleTimeout is the maximum amount duration an idle (keep-alive) connection will remain idle before closing itself. If zero, no timeout is set. (Default: ```180```)

`--entrypoints.<name>.transport.respondingtimeouts.readtimeout`:  
ReadTimeout is the maximum duration for reading the entire request, including the body. If zero, no timeout is set. (Default: ```0```)

`--entrypoints.<name>.transport.respondingtimeouts.writetimeout`:  
WriteTimeout is the maximum duration before timing out writes of the response. If zero, no timeout is set. (Default: ```0```)

`--global.checknewversion`:  
Periodically check if a new version has been released. (Default: ```false```)

`--global.sendanonymoususage`:  
Periodically send anonymous usage statistics. If the option is not specified, it will be enabled by default. (Default: ```false```)

`--hostresolver`:  
Enable CNAME Flattening. (Default: ```false```)

`--hostresolver.cnameflattening`:  
A flag to enable/disable CNAME flattening (Default: ```false```)

`--hostresolver.resolvconfig`:  
resolv.conf used for DNS resolving (Default: ```/etc/resolv.conf```)

`--hostresolver.resolvdepth`:  
The maximal depth of DNS recursive resolving (Default: ```5```)

`--log`:  
Traefik log settings. (Default: ```false```)

`--log.filepath`:  
Traefik log file path. Stdout is used when omitted or empty.

`--log.format`:  
Traefik log format: json | common (Default: ```common```)

`--log.level`:  
Log level set to traefik logs. (Default: ```ERROR```)

`--metrics.datadog`:  
Datadog metrics exporter type. (Default: ```false```)

`--metrics.datadog.addentrypointslabels`:  
Enable metrics on entry points. (Default: ```true```)

`--metrics.datadog.address`:  
Datadog's address. (Default: ```localhost:8125```)

`--metrics.datadog.addserviceslabels`:  
Enable metrics on services. (Default: ```true```)

`--metrics.datadog.pushinterval`:  
Datadog push interval. (Default: ```10```)

`--metrics.influxdb`:  
InfluxDB metrics exporter type. (Default: ```false```)

`--metrics.influxdb.addentrypointslabels`:  
Enable metrics on entry points. (Default: ```true```)

`--metrics.influxdb.address`:  
InfluxDB address. (Default: ```localhost:8089```)

`--metrics.influxdb.addserviceslabels`:  
Enable metrics on services. (Default: ```true```)

`--metrics.influxdb.database`:  
InfluxDB database used when protocol is http.

`--metrics.influxdb.password`:  
InfluxDB password (only with http).

`--metrics.influxdb.protocol`:  
InfluxDB address protocol (udp or http). (Default: ```udp```)

`--metrics.influxdb.pushinterval`:  
InfluxDB push interval. (Default: ```10```)

`--metrics.influxdb.retentionpolicy`:  
InfluxDB retention policy used when protocol is http.

`--metrics.influxdb.username`:  
InfluxDB username (only with http).

`--metrics.prometheus`:  
Prometheus metrics exporter type. (Default: ```false```)

`--metrics.prometheus.addentrypointslabels`:  
Enable metrics on entry points. (Default: ```true```)

`--metrics.prometheus.addserviceslabels`:  
Enable metrics on services. (Default: ```true```)

`--metrics.prometheus.buckets`:  
Buckets for latency metrics. (Default: ```0.100000, 0.300000, 1.200000, 5.000000```)

`--metrics.prometheus.entrypoint`:  
EntryPoint (Default: ```traefik```)

`--metrics.prometheus.manualrouting`:  
Manual routing (Default: ```false```)

`--metrics.statsd`:  
StatsD metrics exporter type. (Default: ```false```)

`--metrics.statsd.addentrypointslabels`:  
Enable metrics on entry points. (Default: ```true```)

`--metrics.statsd.address`:  
StatsD address. (Default: ```localhost:8125```)

`--metrics.statsd.addserviceslabels`:  
Enable metrics on services. (Default: ```true```)

`--metrics.statsd.prefix`:  
Prefix to use for metrics collection. (Default: ```traefik```)

`--metrics.statsd.pushinterval`:  
StatsD push interval. (Default: ```10```)

`--ping`:  
Enable ping. (Default: ```false```)

`--ping.entrypoint`:  
EntryPoint (Default: ```traefik```)

`--ping.manualrouting`:  
Manual routing (Default: ```false```)

`--providers.consul`:  
Enable Consul backend with default settings. (Default: ```false```)

`--providers.consul.endpoints`:  
KV store endpoints (Default: ```127.0.0.1:8500```)

`--providers.consul.password`:  
KV Password

`--providers.consul.rootkey`:  
Root key used for KV store (Default: ```traefik```)

`--providers.consul.tls.ca`:  
TLS CA

`--providers.consul.tls.caoptional`:  
TLS CA.Optional (Default: ```false```)

`--providers.consul.tls.cert`:  
TLS cert

`--providers.consul.tls.insecureskipverify`:  
TLS insecure skip verify (Default: ```false```)

`--providers.consul.tls.key`:  
TLS key

`--providers.consul.username`:  
KV Username

`--providers.consulcatalog.cache`:  
Use local agent caching for catalog reads. (Default: ```false```)

`--providers.consulcatalog.constraints`:  
Constraints is an expression that Traefik matches against the container's labels to determine whether to create any route for that container.

`--providers.consulcatalog.defaultrule`:  
Default rule. (Default: ```Host(`{{ normalize .Name }}`)```)

`--providers.consulcatalog.endpoint.address`:  
The address of the Consul server (Default: ```http://127.0.0.1:8500```)

`--providers.consulcatalog.endpoint.datacenter`:  
Data center to use. If not provided, the default agent data center is used

`--providers.consulcatalog.endpoint.endpointwaittime`:  
WaitTime limits how long a Watch will block. If not provided, the agent default values will be used (Default: ```0```)

`--providers.consulcatalog.endpoint.httpauth.password`:  
Basic Auth password

`--providers.consulcatalog.endpoint.httpauth.username`:  
Basic Auth username

`--providers.consulcatalog.endpoint.scheme`:  
The URI scheme for the Consul server

`--providers.consulcatalog.endpoint.tls.ca`:  
TLS CA

`--providers.consulcatalog.endpoint.tls.caoptional`:  
TLS CA.Optional (Default: ```false```)

`--providers.consulcatalog.endpoint.tls.cert`:  
TLS cert

`--providers.consulcatalog.endpoint.tls.insecureskipverify`:  
TLS insecure skip verify (Default: ```false```)

`--providers.consulcatalog.endpoint.tls.key`:  
TLS key

`--providers.consulcatalog.endpoint.token`:  
Token is used to provide a per-request ACL token which overrides the agent's default token

`--providers.consulcatalog.exposedbydefault`:  
Expose containers by default. (Default: ```true```)

`--providers.consulcatalog.prefix`:  
Prefix for consul service tags. Default 'traefik' (Default: ```traefik```)

`--providers.consulcatalog.refreshinterval`:  
Interval for check Consul API. Default 100ms (Default: ```15```)

`--providers.consulcatalog.requireconsistent`:  
Forces the read to be fully consistent. (Default: ```false```)

`--providers.consulcatalog.stale`:  
Use stale consistency for catalog reads. (Default: ```false```)

`--providers.docker`:  
Enable Docker backend with default settings. (Default: ```false```)

`--providers.docker.constraints`:  
Constraints is an expression that Traefik matches against the container's labels to determine whether to create any route for that container.

`--providers.docker.defaultrule`:  
Default rule. (Default: ```Host(`{{ normalize .Name }}`)```)

`--providers.docker.endpoint`:  
Docker server endpoint. Can be a tcp or a unix socket endpoint. (Default: ```unix:///var/run/docker.sock```)

`--providers.docker.exposedbydefault`:  
Expose containers by default. (Default: ```true```)

`--providers.docker.network`:  
Default Docker network used.

`--providers.docker.swarmmode`:  
Use Docker on Swarm Mode. (Default: ```false```)

`--providers.docker.swarmmoderefreshseconds`:  
Polling interval for swarm mode. (Default: ```15```)

`--providers.docker.tls.ca`:  
TLS CA

`--providers.docker.tls.caoptional`:  
TLS CA.Optional (Default: ```false```)

`--providers.docker.tls.cert`:  
TLS cert

`--providers.docker.tls.insecureskipverify`:  
TLS insecure skip verify (Default: ```false```)

`--providers.docker.tls.key`:  
TLS key

`--providers.docker.usebindportip`:  
Use the ip address from the bound port, rather than from the inner network. (Default: ```false```)

`--providers.docker.watch`:  
Watch Docker Swarm events. (Default: ```true```)

`--providers.etcd`:  
Enable Etcd backend with default settings. (Default: ```false```)

`--providers.etcd.endpoints`:  
KV store endpoints (Default: ```127.0.0.1:2379```)

`--providers.etcd.password`:  
KV Password

`--providers.etcd.rootkey`:  
Root key used for KV store (Default: ```traefik```)

`--providers.etcd.tls.ca`:  
TLS CA

`--providers.etcd.tls.caoptional`:  
TLS CA.Optional (Default: ```false```)

`--providers.etcd.tls.cert`:  
TLS cert

`--providers.etcd.tls.insecureskipverify`:  
TLS insecure skip verify (Default: ```false```)

`--providers.etcd.tls.key`:  
TLS key

`--providers.etcd.username`:  
KV Username

`--providers.file.debugloggeneratedtemplate`:  
Enable debug logging of generated configuration template. (Default: ```false```)

`--providers.file.directory`:  
Load dynamic configuration from one or more .toml or .yml files in a directory.

`--providers.file.filename`:  
Load dynamic configuration from a file.

`--providers.file.watch`:  
Watch provider. (Default: ```true```)

`--providers.kubernetescrd`:  
Enable Kubernetes backend with default settings. (Default: ```false```)

`--providers.kubernetescrd.certauthfilepath`:  
Kubernetes certificate authority file path (not needed for in-cluster client).

`--providers.kubernetescrd.disablepasshostheaders`:  
Kubernetes disable PassHost Headers. (Default: ```false```)

`--providers.kubernetescrd.endpoint`:  
Kubernetes server endpoint (required for external cluster client).

`--providers.kubernetescrd.ingressclass`:  
Value of kubernetes.io/ingress.class annotation to watch for.

`--providers.kubernetescrd.labelselector`:  
Kubernetes label selector to use.

`--providers.kubernetescrd.namespaces`:  
Kubernetes namespaces.

`--providers.kubernetescrd.throttleduration`:  
Ingress refresh throttle duration (Default: ```0```)

`--providers.kubernetescrd.token`:  
Kubernetes bearer token (not needed for in-cluster client).

`--providers.kubernetesingress`:  
Enable Kubernetes backend with default settings. (Default: ```false```)

`--providers.kubernetesingress.certauthfilepath`:  
Kubernetes certificate authority file path (not needed for in-cluster client).

`--providers.kubernetesingress.disablepasshostheaders`:  
Kubernetes disable PassHost Headers. (Default: ```false```)

`--providers.kubernetesingress.endpoint`:  
Kubernetes server endpoint (required for external cluster client).

`--providers.kubernetesingress.ingressclass`:  
Value of kubernetes.io/ingress.class annotation to watch for.

`--providers.kubernetesingress.ingressendpoint.hostname`:  
Hostname used for Kubernetes Ingress endpoints.

`--providers.kubernetesingress.ingressendpoint.ip`:  
IP used for Kubernetes Ingress endpoints.

`--providers.kubernetesingress.ingressendpoint.publishedservice`:  
Published Kubernetes Service to copy status from.

`--providers.kubernetesingress.labelselector`:  
Kubernetes Ingress label selector to use.

`--providers.kubernetesingress.namespaces`:  
Kubernetes namespaces.

`--providers.kubernetesingress.throttleduration`:  
Ingress refresh throttle duration (Default: ```0```)

`--providers.kubernetesingress.token`:  
Kubernetes bearer token (not needed for in-cluster client).

`--providers.marathon`:  
Enable Marathon backend with default settings. (Default: ```false```)

`--providers.marathon.basic.httpbasicauthuser`:  
Basic authentication User.

`--providers.marathon.basic.httpbasicpassword`:  
Basic authentication Password.

`--providers.marathon.constraints`:  
Constraints is an expression that Traefik matches against the application's labels to determine whether to create any route for that application.

`--providers.marathon.dcostoken`:  
DCOSToken for DCOS environment, This will override the Authorization header.

`--providers.marathon.defaultrule`:  
Default rule. (Default: ```Host(`{{ normalize .Name }}`)```)

`--providers.marathon.dialertimeout`:  
Set a dialer timeout for Marathon. (Default: ```5```)

`--providers.marathon.endpoint`:  
Marathon server endpoint. You can also specify multiple endpoint for Marathon. (Default: ```http://127.0.0.1:8080```)

`--providers.marathon.exposedbydefault`:  
Expose Marathon apps by default. (Default: ```true```)

`--providers.marathon.forcetaskhostname`:  
Force to use the task's hostname. (Default: ```false```)

`--providers.marathon.keepalive`:  
Set a TCP Keep Alive time. (Default: ```10```)

`--providers.marathon.respectreadinesschecks`:  
Filter out tasks with non-successful readiness checks during deployments. (Default: ```false```)

`--providers.marathon.responseheadertimeout`:  
Set a response header timeout for Marathon. (Default: ```60```)

`--providers.marathon.tls.ca`:  
TLS CA

`--providers.marathon.tls.caoptional`:  
TLS CA.Optional (Default: ```false```)

`--providers.marathon.tls.cert`:  
TLS cert

`--providers.marathon.tls.insecureskipverify`:  
TLS insecure skip verify (Default: ```false```)

`--providers.marathon.tls.key`:  
TLS key

`--providers.marathon.tlshandshaketimeout`:  
Set a TLS handshake timeout for Marathon. (Default: ```5```)

`--providers.marathon.trace`:  
Display additional provider logs. (Default: ```false```)

`--providers.marathon.watch`:  
Watch provider. (Default: ```true```)

`--providers.providersthrottleduration`:  
Backends throttle duration: minimum duration between 2 events from providers before applying a new configuration. It avoids unnecessary reloads if multiples events are sent in a short amount of time. (Default: ```0```)

`--providers.rancher`:  
Enable Rancher backend with default settings. (Default: ```false```)

`--providers.rancher.constraints`:  
Constraints is an expression that Traefik matches against the container's labels to determine whether to create any route for that container.

`--providers.rancher.defaultrule`:  
Default rule. (Default: ```Host(`{{ normalize .Name }}`)```)

`--providers.rancher.enableservicehealthfilter`:  
Filter services with unhealthy states and inactive states. (Default: ```true```)

`--providers.rancher.exposedbydefault`:  
Expose containers by default. (Default: ```true```)

`--providers.rancher.intervalpoll`:  
Poll the Rancher metadata service every 'rancher.refreshseconds' (less accurate). (Default: ```false```)

`--providers.rancher.prefix`:  
Prefix used for accessing the Rancher metadata service. (Default: ```latest```)

`--providers.rancher.refreshseconds`:  
Defines the polling interval in seconds. (Default: ```15```)

`--providers.rancher.watch`:  
Watch provider. (Default: ```true```)

`--providers.redis`:  
Enable Redis backend with default settings. (Default: ```false```)

`--providers.redis.endpoints`:  
KV store endpoints (Default: ```127.0.0.1:6379```)

`--providers.redis.password`:  
KV Password

`--providers.redis.rootkey`:  
Root key used for KV store (Default: ```traefik```)

`--providers.redis.tls.ca`:  
TLS CA

`--providers.redis.tls.caoptional`:  
TLS CA.Optional (Default: ```false```)

`--providers.redis.tls.cert`:  
TLS cert

`--providers.redis.tls.insecureskipverify`:  
TLS insecure skip verify (Default: ```false```)

`--providers.redis.tls.key`:  
TLS key

`--providers.redis.username`:  
KV Username

`--providers.rest`:  
Enable Rest backend with default settings. (Default: ```false```)

`--providers.rest.insecure`:  
Activate REST Provider directly on the entryPoint named traefik. (Default: ```false```)

`--providers.zookeeper`:  
Enable ZooKeeper backend with default settings. (Default: ```false```)

`--providers.zookeeper.endpoints`:  
KV store endpoints (Default: ```127.0.0.1:2181```)

`--providers.zookeeper.password`:  
KV Password

`--providers.zookeeper.rootkey`:  
Root key used for KV store (Default: ```traefik```)

`--providers.zookeeper.tls.ca`:  
TLS CA

`--providers.zookeeper.tls.caoptional`:  
TLS CA.Optional (Default: ```false```)

`--providers.zookeeper.tls.cert`:  
TLS cert

`--providers.zookeeper.tls.insecureskipverify`:  
TLS insecure skip verify (Default: ```false```)

`--providers.zookeeper.tls.key`:  
TLS key

`--providers.zookeeper.username`:  
KV Username

`--serverstransport.forwardingtimeouts.dialtimeout`:  
The amount of time to wait until a connection to a backend server can be established. If zero, no timeout exists. (Default: ```30```)

`--serverstransport.forwardingtimeouts.idleconntimeout`:  
The maximum period for which an idle HTTP keep-alive connection will remain open before closing itself (Default: ```90```)

`--serverstransport.forwardingtimeouts.responseheadertimeout`:  
The amount of time to wait for a server's response headers after fully writing the request (including its body, if any). If zero, no timeout exists. (Default: ```0```)

`--serverstransport.insecureskipverify`:  
Disable SSL certificate verification. (Default: ```false```)

`--serverstransport.maxidleconnsperhost`:  
If non-zero, controls the maximum idle (keep-alive) to keep per-host. If zero, DefaultMaxIdleConnsPerHost is used (Default: ```0```)

`--serverstransport.rootcas`:  
Add cert file for self-signed certificate.

`--tracing`:  
OpenTracing configuration. (Default: ```false```)

`--tracing.datadog`:  
Settings for Datadog. (Default: ```false```)

`--tracing.datadog.bagageprefixheadername`:  
Specifies the header name prefix that will be used to store baggage items in a map.

`--tracing.datadog.debug`:  
Enable Datadog debug. (Default: ```false```)

`--tracing.datadog.globaltag`:  
Key:Value tag to be set on all the spans.

`--tracing.datadog.localagenthostport`:  
Set datadog-agent's host:port that the reporter will used. (Default: ```localhost:8126```)

`--tracing.datadog.parentidheadername`:  
Specifies the header name that will be used to store the parent ID.

`--tracing.datadog.prioritysampling`:  
Enable priority sampling. When using distributed tracing, this option must be enabled in order to get all the parts of a distributed trace sampled. (Default: ```false```)

`--tracing.datadog.samplingpriorityheadername`:  
Specifies the header name that will be used to store the sampling priority.

`--tracing.datadog.traceidheadername`:  
Specifies the header name that will be used to store the trace ID.

`--tracing.elastic`:  
Settings for Elastic. (Default: ```false```)

`--tracing.elastic.secrettoken`:  
Set the token used to connect to Elastic APM Server.

`--tracing.elastic.serverurl`:  
Set the URL of the Elastic APM server.

`--tracing.elastic.serviceenvironment`:  
Set the name of the environment Traefik is deployed in, e.g. 'production' or 'staging'.

`--tracing.haystack`:  
Settings for Haystack. (Default: ```false```)

`--tracing.haystack.baggageprefixheadername`:  
Specifies the header name prefix that will be used to store baggage items in a map.

`--tracing.haystack.globaltag`:  
Key:Value tag to be set on all the spans.

`--tracing.haystack.localagenthost`:  
Set haystack-agent's host that the reporter will used. (Default: ```127.0.0.1```)

`--tracing.haystack.localagentport`:  
Set haystack-agent's port that the reporter will used. (Default: ```35000```)

`--tracing.haystack.parentidheadername`:  
Specifies the header name that will be used to store the parent ID.

`--tracing.haystack.spanidheadername`:  
Specifies the header name that will be used to store the span ID.

`--tracing.haystack.traceidheadername`:  
Specifies the header name that will be used to store the trace ID.

`--tracing.instana`:  
Settings for Instana. (Default: ```false```)

`--tracing.instana.localagenthost`:  
Set instana-agent's host that the reporter will used.

`--tracing.instana.localagentport`:  
Set instana-agent's port that the reporter will used. (Default: ```42699```)

`--tracing.instana.loglevel`:  
Set instana-agent's log level. ('error','warn','info','debug') (Default: ```info```)

`--tracing.jaeger`:  
Settings for Jaeger. (Default: ```false```)

`--tracing.jaeger.collector.endpoint`:  
Instructs reporter to send spans to jaeger-collector at this URL.

`--tracing.jaeger.collector.password`:  
Password for basic http authentication when sending spans to jaeger-collector.

`--tracing.jaeger.collector.user`:  
User for basic http authentication when sending spans to jaeger-collector.

`--tracing.jaeger.gen128bit`:  
Generate 128 bit span IDs. (Default: ```false```)

`--tracing.jaeger.localagenthostport`:  
Set jaeger-agent's host:port that the reporter will used. (Default: ```127.0.0.1:6831```)

`--tracing.jaeger.propagation`:  
Which propagation format to use (jaeger/b3). (Default: ```jaeger```)

`--tracing.jaeger.samplingparam`:  
Set the sampling parameter. (Default: ```1.000000```)

`--tracing.jaeger.samplingserverurl`:  
Set the sampling server url. (Default: ```http://localhost:5778/sampling```)

`--tracing.jaeger.samplingtype`:  
Set the sampling type. (Default: ```const```)

`--tracing.jaeger.tracecontextheadername`:  
Set the header to use for the trace-id. (Default: ```uber-trace-id```)

`--tracing.servicename`:  
Set the name for this service. (Default: ```traefik```)

`--tracing.spannamelimit`:  
Set the maximum character limit for Span names (default 0 = no limit). (Default: ```0```)

`--tracing.zipkin`:  
Settings for Zipkin. (Default: ```false```)

`--tracing.zipkin.httpendpoint`:  
HTTP Endpoint to report traces to. (Default: ```http://localhost:9411/api/v2/spans```)

`--tracing.zipkin.id128bit`:  
Use Zipkin 128 bit root span IDs. (Default: ```true```)

`--tracing.zipkin.samespan`:  
Use Zipkin SameSpan RPC style traces. (Default: ```false```)

`--tracing.zipkin.samplerate`:  
The rate between 0.0 and 1.0 of requests to trace. (Default: ```1.000000```)