haproxy/haproxy.tmpl at main · pygmystack/haproxy · GitHub

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{{ define "upstream" }}
  {{ if .Address }}
    {{/* If port is not published on host, use container's IP:PORT */}}
    {{ if .Address.IP }}
  # {{ .Container.Name }}
  server {{ .Address.IP }}:{{ .Address.Port }} {{ .Address.IP }}:{{ .Address.Port }} check
    {{ else }}
  # {{ .Container.Name }}
  server {{ .Container.Name }}:{{ .Address.Port }} {{ .Container.Name }}:{{ .Address.Port }} check init-addr last,libc,none
    {{ end }}
  {{ end }}
{{ end }}

{{ define "upstream_ssl" }}
  {{ if .Address }}
    {{/* If port is not published on host, use container's IP:PORT */}}
    {{ if .Address.IP }}
  # {{ .Container.Name }}
  server {{ .Address.IP }}:{{ .Address.Port }} {{ .Address.IP }}:{{ .Address.Port }} check ssl verify none
    {{ else }}
  # {{ .Container.Name }}
  server {{ .Container.Name }}:{{ .Address.Port }} {{ .Container.Name }}:{{ .Address.Port }} check ssl verify none init-addr last,libc,none
    {{ end }}
  {{ end }}
{{ end }}

global
  daemon
  maxconn 1024
  pidfile /var/run/haproxy.pid
  tune.bufsize 32768

defaults
  balance roundrobin
  timeout client 600s
  timeout connect 600s
  timeout server 600s
  option http-server-close


frontend http
  mode http
  bind :80
  option forwardfor

  stats enable
  stats refresh 30s
  stats show-node
  stats uri  /stats
{{/* We are only interested in containers that have the environment variable AMAZEEIO set */}}
{{range $key, $container := whereExist $ "Env.AMAZEEIO" }}
  {{/* Allow containers to set their hostname via the env variable AMAZEEIO_URL if not set, fall bback to the container name */}}
  {{$host := coalesce $container.Env.AMAZEEIO_URL $container.Name }}
  use_backend http_{{$host}} if { hdr_dom(host) -i {{$host}} }
{{end}}
{{/* We are only interested in containers that have the environment variable LAGOON_LOCALDEV_HTTP_PORT set */}}
{{range $key, $container := whereExist $ "Env.LAGOON_LOCALDEV_HTTP_PORT" }}
  {{/* Allow containers to set their hostname via the env variable LAGOON_ROUTE if not set, fall back to the container name and projectname. Also remove http:// and https:// */}}
  {{$host := replace (replace (coalesce $container.Env.LAGOON_LOCALDEV_URL $container.Env.LAGOON_ROUTE  (printf "%s.docker.amazee.io" $container.Name)) "http://" "" 1) "https://" "" 1 }}
  use_backend http_{{$host}} if { hdr_dom(host) -i {{$host}} }
{{end}}

{{if exists "/app/server.pem"}}
frontend https
  mode http
  bind *:443 ssl crt /app/server.pem
  http-request add-header X-Forwarded-Proto https
  option forwardfor
  option socket-stats

  stats enable
  stats refresh 30s
  stats show-node
  stats uri /stats
{{range $key, $container := whereExist $ "Env.AMAZEEIO" }}
  {{$host := coalesce $container.Env.AMAZEEIO_URL $container.Name }}
  use_backend https_{{$host}} if { hdr_dom(host) -i {{$host}} } { nbsrv(https_{{$host}}) gt 0 }
  use_backend http_{{$host}} if { hdr_dom(host) -i {{$host}} }
{{end}}
{{range $key, $container := whereExist $ "Env.LAGOON_LOCALDEV_HTTP_PORT" }}
  {{/* Allow containers to set their hostname via the env variable LAGOON_ROUTE if not set, fall back to the container name and projectname. Also remove http:// and https:// */}}
  {{$host := replace (replace (coalesce $container.Env.LAGOON_LOCALDEV_URL $container.Env.LAGOON_ROUTE  (printf "%s.docker.amazee.io" $container.Name)) "http://" "" 1) "https://" "" 1 }}
  use_backend http_{{$host}} if { hdr_dom(host) -i {{$host}} }
{{end}}
{{range $key, $container := whereExist $ "Env.LAGOON_LOCALDEV_HTTPS_PORT" }}
  {{/* Allow containers to set their hostname via the env variable LAGOON_ROUTE if not set, fall back to the container name and projectname. Also remove http:// and https:// */}}
  {{$host := replace (replace (coalesce $container.Env.LAGOON_LOCALDEV_URL $container.Env.LAGOON_ROUTE  (printf "%s.docker.amazee.io" $container.Name)) "http://" "" 1) "https://" "" 1 }}
  use_backend https_{{$host}} if { hdr_dom(host) -i {{$host}} } { nbsrv(https_{{$host}}) gt 0 }
{{end}}
{{end}}

{{range $key, $container := whereExist $ "Env.AMAZEEIO" }}
  {{$host := coalesce $container.Env.AMAZEEIO_URL $container.Name }}
  {{/* Allow containers to set their the port for HTTP connections via AMAZEEIO_HTTP_PORT env variable, fallback to Port 80 */}}
  {{$http_port := coalesce $container.Env.AMAZEEIO_HTTP_PORT "80" }}
backend http_{{$host}}
  mode http
  {{ $address := where $container.Addresses "Port" $http_port | first }}
  {{ template "upstream" (dict "Container" $container "Address" $address) }}
{{end}}

{{range $key, $container := whereExist $ "Env.AMAZEEIO" }}
  {{$host := coalesce $container.Env.AMAZEEIO_URL $container.Name }}
  {{/* Allow containers to set their port for HTTPS connections via AMAZEEIO_HTTPS_PORT env variable, fallback to Port 443 */}}
  {{$https_port := coalesce $container.Env.AMAZEEIO_HTTPS_PORT "443" }}
backend https_{{$host}}
  mode http
  {{ $address := where $container.Addresses "Port" $https_port | first }}
  {{ template "upstream_ssl" (dict "Container" $container "Address" $address) }}
{{end}}

{{range $key, $container := whereExist $ "Env.LAGOON_LOCALDEV_HTTP_PORT" }}
  {{$host := replace (replace (coalesce $container.Env.LAGOON_LOCALDEV_URL $container.Env.LAGOON_ROUTE  (printf "%s.docker.amazee.io" $container.Name)) "http://" "" 1) "https://" "" 1 }}
  {{/* Allow containers to set their the port for HTTP connections via LAGOON_LOCALDEV_HTTP_PORT env variable, fallback to Port 8080 */}}
  {{$http_port := coalesce $container.Env.LAGOON_LOCALDEV_HTTP_PORT "8080" }}
backend http_{{$host}}
  mode http
  {{ $address := where $container.Addresses "Port" $http_port | first }}
  {{ template "upstream" (dict "Container" $container "Address" $address) }}
{{end}}

{{range $key, $container := whereExist $ "Env.LAGOON_LOCALDEV_HTTPS_PORT" }}
  {{$host := replace (replace (coalesce $container.Env.LAGOON_LOCALDEV_URL $container.Env.LAGOON_ROUTE  (printf "%s.docker.amazee.io" $container.Name)) "http://" "" 1) "https://" "" 1 }}
  {{/* Allow containers to set their port for HTTPS connections via LAGOON_LOCALDEV_HTTPS_PORT env variable */}}
  {{$https_port := $container.Env.LAGOON_LOCALDEV_HTTPS_PORT }}
backend https_{{$host}}
  mode http
  {{ $address := where $container.Addresses "Port" $https_port | first }}
  {{ template "upstream_ssl" (dict "Container" $container "Address" $address) }}
{{end}}