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ECS Provider

Træfik can be configured to use Amazon ECS as a provider.

Configuration

################################################################
# ECS Provider
################################################################

# Enable ECS Provider.
[ecs]

# ECS Cluster Name.
#
# DEPRECATED - Please use `clusters`.
#
cluster = "default"

# ECS Clusters Name.
#
# Optional
# Default: ["default"]
#
clusters = ["default"]

# Enable watch ECS changes.
#
# Optional
# Default: true
#
watch = true

# Default domain used.
# Can be overridden by setting the "traefik.domain" label.
#
# Optional
# Default: ""
#
domain = "ecs.localhost"

# Enable auto discover ECS clusters.
#
# Optional
# Default: false
#
autoDiscoverClusters = false

# Polling interval (in seconds).
#
# Optional
# Default: 15
#
refreshSeconds = 15

# Expose ECS services by default in Traefik.
#
# Optional
# Default: true
#
exposedByDefault = false

# Region to use when connecting to AWS.
#
# Optional
#
region = "us-east-1"

# Access Key ID to use when connecting to AWS.
#
# Optional
#
accessKeyID = "abc"

# Secret Access Key to use when connecting to AWS.
#
# Optional
#
secretAccessKey = "123"

# Override default configuration template.
# For advanced users :)
#
# Optional
#
# filename = "ecs.tmpl"

# Override template version
# For advanced users :)
#
# Optional
# - "1": previous template version (must be used only with older custom templates, see "filename")
# - "2": current template version (must be used to force template version when "filename" is used)
#
# templateVersion = 2

If accessKeyID/secretAccessKey is not given credentials will be resolved in the following order:

  • From environment variables; AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, and AWS_SESSION_TOKEN.
  • Shared credentials, determined by AWS_PROFILE and AWS_SHARED_CREDENTIALS_FILE, defaults to default and ~/.aws/credentials.
  • EC2 instance role or ECS task role

Policy

Træfik needs the following policy to read ECS information:

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "TraefikECSReadAccess",
            "Effect": "Allow",
            "Action": [
                "ecs:ListClusters",
                "ecs:DescribeClusters",
                "ecs:ListTasks",
                "ecs:DescribeTasks",
                "ecs:DescribeContainerInstances",
                "ecs:DescribeTaskDefinition",
                "ec2:DescribeInstances"
            ],
            "Resource": [
                "*"
            ]
        }
    ]
}

Labels: overriding default behaviour

Labels can be used on task containers to override default behaviour:

Label Description
traefik.domain Default domain used for frontend rules.
traefik.enable=false Disable this container in Træfik
traefik.port=80 Override the default port value. Overrides NetworkBindings from Docker Container
traefik.protocol=https Override the default http protocol
traefik.weight=10 Assign this weight to the container
traefik.backend=foo Give the name foo to the generated backend for this container.
traefik.backend.buffering.maxRequestBodyBytes=0 See buffering section.
traefik.backend.buffering.maxResponseBodyBytes=0 See buffering section.
traefik.backend.buffering.memRequestBodyBytes=0 See buffering section.
traefik.backend.buffering.memResponseBodyBytes=0 See buffering section.
traefik.backend.buffering.retryExpression=EXPR See buffering section.
traefik.backend.circuitbreaker.expression=EXPR Create a circuit breaker to be used against the backend
traefik.backend.healthcheck.path=/health Enable health check for the backend, hitting the container at path.
traefik.backend.healthcheck.port=8080 Allow to use a different port for the health check.
traefik.backend.healthcheck.interval=1s Define the health check interval. (Default: 30s)
traefik.backend.loadbalancer.method=drr Override the default wrr load balancer algorithm
traefik.backend.loadbalancer.stickiness=true Enable backend sticky sessions
traefik.backend.loadbalancer.stickiness.cookieName=NAME Manually set the cookie name for sticky sessions
traefik.backend.loadbalancer.sticky=true Enable backend sticky sessions (DEPRECATED)
traefik.backend.maxconn.amount=10 Set a maximum number of connections to the backend.
Must be used in conjunction with the below label to take effect.
traefik.backend.maxconn.extractorfunc=client.ip Set the function to be used against the request to determine what to limit maximum connections to the backend by.
Must be used in conjunction with the above label to take effect.
traefik.frontend.auth.basic=EXPR Sets basic authentication for that frontend in CSV format: User:Hash,User:Hash
traefik.frontend.entryPoints=http,https Assign this frontend to entry points http and https.
Overrides defaultEntryPoints
traefik.frontend.errors.<name>.backend=NAME See custom error pages section.
traefik.frontend.errors.<name>.query=PATH See custom error pages section.
traefik.frontend.errors.<name>.status=RANGE See custom error pages section.
traefik.frontend.passHostHeader=true Forward client Host header to the backend.
traefik.frontend.passTLSCert=true Forward TLS Client certificates to the backend.
traefik.frontend.priority=10 Override default frontend priority
traefik.frontend.rateLimit.extractorFunc=EXP See rate limiting section.
traefik.frontend.rateLimit.rateSet.<name>.period=6 See rate limiting section.
traefik.frontend.rateLimit.rateSet.<name>.average=6 See rate limiting section.
traefik.frontend.rateLimit.rateSet.<name>.burst=6 See rate limiting section.
traefik.frontend.redirect.entryPoint=https Enables Redirect to another entryPoint for that frontend (e.g. HTTPS)
traefik.frontend.redirect.regex=^http://localhost/(.*) Redirect to another URL for that frontend.
Must be set with traefik.frontend.redirect.replacement.
traefik.frontend.redirect.replacement=http://mydomain/$1 Redirect to another URL for that frontend.
Must be set with traefik.frontend.redirect.regex.
traefik.frontend.redirect.permanent=true Return 301 instead of 302.
traefik.frontend.rule=EXPR Override the default frontend rule. Default: Host:{instance_name}.{domain}.
traefik.frontend.whiteList.sourceRange=RANGE List of IP-Ranges which are allowed to access.
An unset or empty list allows all Source-IPs to access. If one of the Net-Specifications are invalid, the whole list is invalid and allows all Source-IPs to access.
traefik.frontend.whiteList.useXForwardedFor=true Use X-Forwarded-For header as valid source of IP for the white list.

Custom Headers

Label Description
traefik.frontend.headers.customRequestHeaders=EXPR Provides the container with custom request headers that will be appended to each request forwarded to the container.
Format: HEADER:value||HEADER2:value2
traefik.frontend.headers.customResponseHeaders=EXPR Appends the headers to each response returned by the container, before forwarding the response to the client.
Format: HEADER:value||HEADER2:value2

Security Headers

Label Description
traefik.frontend.headers.allowedHosts=EXPR Provides a list of allowed hosts that requests will be processed.
Format: Host1,Host2
traefik.frontend.headers.browserXSSFilter=true Adds the X-XSS-Protection header with the value 1; mode=block.
traefik.frontend.headers.contentSecurityPolicy=VALUE Adds CSP Header with the custom value.
traefik.frontend.headers.contentTypeNosniff=true Adds the X-Content-Type-Options header with the value nosniff.
traefik.frontend.headers.customBrowserXSSValue=VALUE Set custom value for X-XSS-Protection header. This overrides the BrowserXssFilter option.
traefik.frontend.headers.customFrameOptionsValue=VALUE Overrides the X-Frame-Options header with the custom value.
traefik.frontend.headers.forceSTSHeader=false Adds the STS header to non-SSL requests.
traefik.frontend.headers.frameDeny=false Adds the X-Frame-Options header with the value of DENY.
traefik.frontend.headers.hostsProxyHeaders=EXPR Provides a list of headers that the proxied hostname may be stored.
Format: HEADER1,HEADER2
traefik.frontend.headers.publicKey=VALUE Adds pinned HTST public key header.
traefik.frontend.headers.referrerPolicy=VALUE Adds referrer policy header.
traefik.frontend.headers.isDevelopment=false This will cause the AllowedHosts, SSLRedirect, and STSSeconds/STSIncludeSubdomains options to be ignored during development.
When deploying to production, be sure to set this to false.
traefik.frontend.headers.SSLRedirect=true Forces the frontend to redirect to SSL if a non-SSL request is sent.
traefik.frontend.headers.SSLTemporaryRedirect=true Forces the frontend to redirect to SSL if a non-SSL request is sent, but by sending a 302 instead of a 301.
traefik.frontend.headers.SSLHost=HOST This setting configures the hostname that redirects will be based on. Default is "", which is the same host as the request.
traefik.frontend.headers.SSLProxyHeaders=EXPR Header combinations that would signify a proper SSL Request (Such as X-Forwarded-For:https).
Format: HEADER:value||HEADER2:value2
traefik.frontend.headers.STSSeconds=315360000 Sets the max-age of the STS header.
traefik.frontend.headers.STSIncludeSubdomains=true Adds the IncludeSubdomains section of the STS header.
traefik.frontend.headers.STSPreload=true Adds the preload flag to the STS header.