`--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.`: Override mode for headers `--accesslog.fields.names.`: 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.`: Certificates resolvers configuration. (Default: ```false```) `--certificatesresolvers..acme.caserver`: CA server to use. (Default: ```https://acme-v02.api.letsencrypt.org/directory```) `--certificatesresolvers..acme.dnschallenge`: Activate DNS-01 Challenge. (Default: ```false```) `--certificatesresolvers..acme.dnschallenge.delaybeforecheck`: Assume DNS propagates after a delay in seconds rather than finding and querying nameservers. (Default: ```0```) `--certificatesresolvers..acme.dnschallenge.disablepropagationcheck`: Disable the DNS propagation checks before notifying ACME that the DNS challenge is ready. [not recommended] (Default: ```false```) `--certificatesresolvers..acme.dnschallenge.provider`: Use a DNS-01 based challenge provider rather than HTTPS. `--certificatesresolvers..acme.dnschallenge.resolvers`: Use following DNS servers to resolve the FQDN authority. `--certificatesresolvers..acme.eab.hmacencoded`: Base64 encoded HMAC key from External CA. `--certificatesresolvers..acme.eab.kid`: Key identifier from External CA. `--certificatesresolvers..acme.email`: Email address used for registration. `--certificatesresolvers..acme.httpchallenge`: Activate HTTP-01 Challenge. (Default: ```false```) `--certificatesresolvers..acme.httpchallenge.entrypoint`: HTTP challenge EntryPoint `--certificatesresolvers..acme.keytype`: KeyType used for generating certificate private key. Allow value 'EC256', 'EC384', 'RSA2048', 'RSA4096', 'RSA8192'. (Default: ```RSA4096```) `--certificatesresolvers..acme.preferredchain`: Preferred chain to use. `--certificatesresolvers..acme.storage`: Storage to use. (Default: ```acme.json```) `--certificatesresolvers..acme.tlschallenge`: Activate TLS-ALPN-01 Challenge. (Default: ```true```) `--entrypoints.`: Entry points definition. (Default: ```false```) `--entrypoints..address`: Entry point address. `--entrypoints..forwardedheaders.insecure`: Trust all forwarded headers. (Default: ```false```) `--entrypoints..forwardedheaders.trustedips`: Trust only forwarded headers from selected IPs. `--entrypoints..http`: HTTP configuration. `--entrypoints..http.middlewares`: Default middlewares for the routers linked to the entry point. `--entrypoints..http.redirections.entrypoint.permanent`: Applies a permanent redirection. (Default: ```true```) `--entrypoints..http.redirections.entrypoint.priority`: Priority of the generated router. (Default: ```2147483647```) `--entrypoints..http.redirections.entrypoint.scheme`: Scheme used for the redirection. (Default: ```https```) `--entrypoints..http.redirections.entrypoint.to`: Targeted entry point of the redirection. `--entrypoints..http.tls`: Default TLS configuration for the routers linked to the entry point. (Default: ```false```) `--entrypoints..http.tls.certresolver`: Default certificate resolver for the routers linked to the entry point. `--entrypoints..http.tls.domains`: Default TLS domains for the routers linked to the entry point. `--entrypoints..http.tls.domains[n].main`: Default subject name. `--entrypoints..http.tls.domains[n].sans`: Subject alternative names. `--entrypoints..http.tls.options`: Default TLS options for the routers linked to the entry point. `--entrypoints..proxyprotocol`: Proxy-Protocol configuration. (Default: ```false```) `--entrypoints..proxyprotocol.insecure`: Trust all. (Default: ```false```) `--entrypoints..proxyprotocol.trustedips`: Trust only selected IPs. `--entrypoints..transport.lifecycle.gracetimeout`: Duration to give active requests a chance to finish before Traefik stops. (Default: ```10```) `--entrypoints..transport.lifecycle.requestacceptgracetimeout`: Duration to keep accepting requests before Traefik initiates the graceful shutdown procedure. (Default: ```0```) `--entrypoints..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..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..transport.respondingtimeouts.writetimeout`: WriteTimeout is the maximum duration before timing out writes of the response. If zero, no timeout is set. (Default: ```0```) `--experimental.devplugin.gopath`: plugin's GOPATH. `--experimental.devplugin.modulename`: plugin's module name. `--experimental.kubernetesgateway`: Allow the Kubernetes gateway api provider usage. (Default: ```false```) `--experimental.plugins..modulename`: plugin's module name. `--experimental.plugins..version`: plugin's version. `--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```) `--pilot.token`: Traefik Pilot token. `--ping`: Enable ping. (Default: ```false```) `--ping.entrypoint`: EntryPoint (Default: ```traefik```) `--ping.manualrouting`: Manual routing (Default: ```false```) `--ping.terminatingstatuscode`: Terminating status code (Default: ```503```) `--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`: Enable ConsulCatalog backend with default settings. (Default: ```false```) `--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: ```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 15s (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.httpclienttimeout`: Client timeout for HTTP connections. (Default: ```0```) `--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.ecs`: Enable AWS ECS backend with default settings. (Default: ```false```) `--providers.ecs.accesskeyid`: The AWS credentials access key to use for making requests `--providers.ecs.autodiscoverclusters`: Auto discover cluster (Default: ```false```) `--providers.ecs.clusters`: ECS Clusters name (Default: ```default```) `--providers.ecs.constraints`: Constraints is an expression that Traefik matches against the container's labels to determine whether to create any route for that container. `--providers.ecs.defaultrule`: Default rule. (Default: ```Host(`{{ normalize .Name }}`)```) `--providers.ecs.exposedbydefault`: Expose services by default (Default: ```true```) `--providers.ecs.refreshseconds`: Polling interval (in seconds) (Default: ```15```) `--providers.ecs.region`: The AWS region to use for requests `--providers.ecs.secretaccesskey`: The AWS credentials access key to use for making requests `--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.http`: Enable HTTP backend with default settings. (Default: ```false```) `--providers.http.endpoint`: Load configuration from this endpoint. `--providers.http.pollinterval`: Polling interval for endpoint. (Default: ```5```) `--providers.http.polltimeout`: Polling timeout for endpoint. (Default: ```5```) `--providers.http.tls.ca`: TLS CA `--providers.http.tls.caoptional`: TLS CA.Optional (Default: ```false```) `--providers.http.tls.cert`: TLS cert `--providers.http.tls.insecureskipverify`: TLS insecure skip verify (Default: ```false```) `--providers.http.tls.key`: TLS key `--providers.kubernetescrd`: Enable Kubernetes backend with default settings. (Default: ```false```) `--providers.kubernetescrd.allowcrossnamespace`: Allow cross namespace resource reference. (Default: ```true```) `--providers.kubernetescrd.certauthfilepath`: Kubernetes certificate authority file path (not needed for in-cluster client). `--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.kubernetesgateway`: Enable Kubernetes gateway api provider with default settings. (Default: ```false```) `--providers.kubernetesgateway.certauthfilepath`: Kubernetes certificate authority file path (not needed for in-cluster client). `--providers.kubernetesgateway.endpoint`: Kubernetes server endpoint (required for external cluster client). `--providers.kubernetesgateway.labelselector`: Kubernetes label selector to select specific GatewayClasses. `--providers.kubernetesgateway.namespaces`: Kubernetes namespaces. `--providers.kubernetesgateway.throttleduration`: Kubernetes refresh throttle duration (Default: ```0```) `--providers.kubernetesgateway.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.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.disableattemptreconnecting`: Disable the periodic re-resolution of the agent's hostname and reconnection if there was a change. (Default: ```true```) `--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```)