Scalingo Traefik Buildpack

This buildpack aims at deploying a traefik instance on the Scalingo PaaS platform.

Traefik

Traefik is modern HTTP reverse proxy and load balancer that makes deploying microservices easy.

Buildpack

This buildpack is inspired from heroku-buildpack-traefik

This buildpack does the following (see bin/compile for details):

• install traefik (select TRAEFIK_VERSION, default is 2.5.6)
• start run.sh script at boot time

Usage

To deploy a traefik instance app on scalingo:

• define BUILDPACK_URL=url_to_this_buildpack or in .buildpacks file
• define TRAEFIK_var according to traefik documentation

# sample
TRAEFIK_LOG=true
TRAEFIK_LOG_LEVEL=INFO # DEBUG
TRAEFIK_ACCESSLOG=true
TRAEFIK_ENTRYPOINTS_web_FORWARDEDHEADERS_TRUSTEDIPS=10.0.0.0/8 # to trust scalingo LB and Forward X-Forwarded- to backend
# To enable traefik dashboard / api (warning: please use auth middleware to protect the path)
TRAEFIK_API=true
TRAEFIK_API_DASHBOARD=true
TRAEFIK_API_DEBUG=false
TRAEFIK_API_INSECURE=true

• Then, define a provider for dynamic configuration discovery (route, middleware,backend services), and traefik do the rest .

  • Option 1 (default): define a static file or dynamic provider filefile provider documentation: default is config/dynamic.yml, in your custom app repository

    • The file can be a static file or dynamic file with (go templating variable), see example in config/dynamic.yml.sample
    • You can define another location with TRAEFIK_PROVIDERS_FILE_FILENAME=/app/config/mycustom.yml

  • Option 2: Or define Redis provider redis provider documentation: add a redis addons, and configure TRAEFIK_PROVIDERS_REDIS_ variables, and store as KV your config in redis.

  • Option 3: Or define HTTP provider HTTP provider documentation: configure TRAEFIK_PROVIDERS_HTTP_ variables, and provide your dynamic configuration via an HTTP endpoint.

    • TRAEFIK_PROVIDERS_HTTP_ENDPOINT=https://api.my-conf.domain/config/simple-conf.json