192 lines
19 KiB
Markdown
192 lines
19 KiB
Markdown
# ECS Backend
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Træfik can be configured to use Amazon ECS as a backend configuration.
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## Configuration
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```toml
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################################################################
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# ECS configuration backend
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################################################################
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# Enable ECS configuration backend.
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[ecs]
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# ECS Cluster Name.
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#
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# DEPRECATED - Please use `clusters`.
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#
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cluster = "default"
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# ECS Clusters Name.
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#
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# Optional
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# Default: ["default"]
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#
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clusters = ["default"]
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# Enable watch ECS changes.
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#
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# Optional
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# Default: true
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#
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watch = true
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# Default domain used.
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#
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# Optional
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# Default: ""
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#
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domain = "ecs.localhost"
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# Enable auto discover ECS clusters.
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#
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# Optional
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# Default: false
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#
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autoDiscoverClusters = false
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# Polling interval (in seconds).
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#
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# Optional
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# Default: 15
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#
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refreshSeconds = 15
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# Expose ECS services by default in Traefik.
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#
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# Optional
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# Default: true
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#
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exposedByDefault = false
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# Region to use when connecting to AWS.
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#
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# Optional
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#
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region = "us-east-1"
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# AccessKeyID to use when connecting to AWS.
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#
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# Optional
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#
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accessKeyID = "abc"
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# SecretAccessKey to use when connecting to AWS.
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#
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# Optional
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#
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secretAccessKey = "123"
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# Override default configuration template.
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# For advanced users :)
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#
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# Optional
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#
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# filename = "ecs.tmpl"
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```
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If `AccessKeyID`/`SecretAccessKey` is not given credentials will be resolved in the following order:
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- From environment variables; `AWS_ACCESS_KEY_ID`, `AWS_SECRET_ACCESS_KEY`, and `AWS_SESSION_TOKEN`.
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- Shared credentials, determined by `AWS_PROFILE` and `AWS_SHARED_CREDENTIALS_FILE`, defaults to `default` and `~/.aws/credentials`.
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- EC2 instance role or ECS task role
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## Policy
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Træfik needs the following policy to read ECS information:
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```json
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{
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"Version": "2012-10-17",
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"Statement": [
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{
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"Sid": "TraefikECSReadAccess",
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"Effect": "Allow",
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"Action": [
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"ecs:ListClusters",
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"ecs:DescribeClusters",
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"ecs:ListTasks",
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"ecs:DescribeTasks",
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"ecs:DescribeContainerInstances",
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"ecs:DescribeTaskDefinition",
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"ec2:DescribeInstances"
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],
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"Resource": [
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"*"
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]
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}
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]
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}
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```
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## Labels: overriding default behaviour
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Labels can be used on task containers to override default behaviour:
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| Label | Description |
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|------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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| `traefik.enable=false` | Disable this container in Træfik |
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| `traefik.port=80` | Override the default `port` value. Overrides `NetworkBindings` from Docker Container |
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| `traefik.protocol=https` | Override the default `http` protocol |
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| `traefik.weight=10` | Assign this weight to the container |
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| `traefik.backend=foo` | Give the name `foo` to the generated backend for this container. |
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| `traefik.backend.buffering.maxRequestBodyBytes=0` | See [buffering](/configuration/commons/#buffering) section. |
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| `traefik.backend.buffering.maxResponseBodyBytes=0` | See [buffering](/configuration/commons/#buffering) section. |
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| `traefik.backend.buffering.memRequestBodyBytes=0` | See [buffering](/configuration/commons/#buffering) section. |
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| `traefik.backend.buffering.memResponseBodyBytes=0` | See [buffering](/configuration/commons/#buffering) section. |
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| `traefik.backend.buffering.retryExpression=EXPR` | See [buffering](/configuration/commons/#buffering) section. |
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| `traefik.backend.circuitbreaker.expression=EXPR` | Create a [circuit breaker](/basics/#backends) to be used against the backend |
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| `traefik.backend.healthcheck.path=/health` | Enable health check for the backend, hitting the container at `path`. |
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| `traefik.backend.healthcheck.port=8080` | Allow to use a different port for the health check. |
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| `traefik.backend.healthcheck.interval=1s` | Define the health check interval. (Default: 30s) |
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| `traefik.backend.loadbalancer.method=drr` | Override the default `wrr` load balancer algorithm |
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| `traefik.backend.loadbalancer.stickiness=true` | Enable backend sticky sessions |
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| `traefik.backend.loadbalancer.stickiness.cookieName=NAME` | Manually set the cookie name for sticky sessions |
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| `traefik.backend.loadbalancer.sticky=true` | Enable backend sticky sessions (DEPRECATED) |
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| `traefik.backend.loadbalancer.swarm=true` | Use Swarm's inbuilt load balancer (only relevant under Swarm Mode). |
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| `traefik.backend.maxconn.amount=10` | Set a maximum number of connections to the backend.<br>Must be used in conjunction with the below label to take effect. |
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| `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.<br>Must be used in conjunction with the above label to take effect. |
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| `traefik.frontend.auth.basic=EXPR` | Sets basic authentication for that frontend in CSV format: `User:Hash,User:Hash` |
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| `traefik.frontend.entryPoints=http,https` | Assign this frontend to entry points `http` and `https`.<br>Overrides `defaultEntryPoints` |
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| `traefik.frontend.errors.<name>.backend=NAME` | See [custom error pages](/configuration/commons/#custom-error-pages) section. |
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| `traefik.frontend.errors.<name>.query=PATH` | See [custom error pages](/configuration/commons/#custom-error-pages) section. |
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| `traefik.frontend.errors.<name>.status=RANGE` | See [custom error pages](/configuration/commons/#custom-error-pages) section. |
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| `traefik.frontend.passHostHeader=true` | Forward client `Host` header to the backend. |
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| `traefik.frontend.passTLSCert=true` | Forward TLS Client certificates to the backend. |
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| `traefik.frontend.priority=10` | Override default frontend priority |
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| `traefik.frontend.rateLimit.extractorFunc=EXP` | See [rate limiting](/configuration/commons/#rate-limiting) section. |
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| `traefik.frontend.rateLimit.rateSet.<name>.period=6` | See [rate limiting](/configuration/commons/#rate-limiting) section. |
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| `traefik.frontend.rateLimit.rateSet.<name>.average=6` | See [rate limiting](/configuration/commons/#rate-limiting) section. |
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| `traefik.frontend.rateLimit.rateSet.<name>.burst=6` | See [rate limiting](/configuration/commons/#rate-limiting) section. |
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| `traefik.frontend.redirect.entryPoint=https` | Enables Redirect to another entryPoint for that frontend (e.g. HTTPS) |
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| `traefik.frontend.redirect.regex=^http://localhost/(.*)` | Redirect to another URL for that frontend.<br>Must be set with `traefik.frontend.redirect.replacement`. |
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| `traefik.frontend.redirect.replacement=http://mydomain/$1` | Redirect to another URL for that frontend.<br>Must be set with `traefik.frontend.redirect.regex`. |
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| `traefik.frontend.redirect.permanent=true` | Return 301 instead of 302. |
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| `traefik.frontend.rule=EXPR` | Override the default frontend rule. Default: `Host:{instance_name}.{domain}`. |
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| `traefik.frontend.whitelistSourceRange=RANGE` | List of IP-Ranges which are allowed to access.<br>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. |
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#### Security Headers
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| Label | Description |
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|----------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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| `traefik.frontend.headers.allowedHosts=EXPR` | Provides a list of allowed hosts that requests will be processed.<br>Format: `Host1,Host2` |
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| `traefik.frontend.headers.customRequestHeaders=EXPR ` | Provides the container with custom request headers that will be appended to each request forwarded to the container.<br>Format: <code>HEADER:value||HEADER2:value2</code> |
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| `traefik.frontend.headers.customResponseHeaders=EXPR` | Appends the headers to each response returned by the container, before forwarding the response to the client.<br>Format: <code>HEADER:value||HEADER2:value2</code> |
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| `traefik.frontend.headers.hostsProxyHeaders=EXPR ` | Provides a list of headers that the proxied hostname may be stored.<br>Format: `HEADER1,HEADER2` |
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| `traefik.frontend.headers.SSLRedirect=true` | Forces the frontend to redirect to SSL if a non-SSL request is sent. |
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| `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. |
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| `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. |
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| `traefik.frontend.headers.SSLProxyHeaders=EXPR` | Header combinations that would signify a proper SSL Request (Such as `X-Forwarded-For:https`).<br>Format: <code>HEADER:value||HEADER2:value2</code> |
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| `traefik.frontend.headers.STSSeconds=315360000` | Sets the max-age of the STS header. |
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| `traefik.frontend.headers.STSIncludeSubdomains=true` | Adds the `IncludeSubdomains` section of the STS header. |
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| `traefik.frontend.headers.STSPreload=true` | Adds the preload flag to the STS header. |
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| `traefik.frontend.headers.forceSTSHeader=false` | Adds the STS header to non-SSL requests. |
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| `traefik.frontend.headers.frameDeny=false` | Adds the `X-Frame-Options` header with the value of `DENY`. |
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| `traefik.frontend.headers.customFrameOptionsValue=VALUE` | Overrides the `X-Frame-Options` header with the custom value. |
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| `traefik.frontend.headers.contentTypeNosniff=true` | Adds the `X-Content-Type-Options` header with the value `nosniff`. |
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| `traefik.frontend.headers.browserXSSFilter=true` | Adds the X-XSS-Protection header with the value `1; mode=block`. |
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| `traefik.frontend.headers.contentSecurityPolicy=VALUE` | Adds CSP Header with the custom value. |
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| `traefik.frontend.headers.publicKey=VALUE` | Adds pinned HTST public key header. |
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| `traefik.frontend.headers.referrerPolicy=VALUE` | Adds referrer policy header. |
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| `traefik.frontend.headers.isDevelopment=false` | This will cause the `AllowedHosts`, `SSLRedirect`, and `STSSeconds`/`STSIncludeSubdomains` options to be ignored during development.<br>When deploying to production, be sure to set this to false. |
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