traefik/traefik.nomad.hcl

job "[[ .instance ]]" {

[[ template "common/job_start" . ]]

  group "traefik" {
[[ $c := merge .traefik . ]]
[[ template "common/group_start" $c ]]

    network {
      mode = "bridge"

[[- range $name, $def := $c.entrypoints ]]
  [[- if or (not (has $def "enabled")) ($def.enabled) ]]
      port "[[ $name ]]" {
    [[- if has $def "static" ]]
        static = [[ $def.static ]]
    [[- end ]]
    [[- if has $def "to" ]]
        to     = [[ $def.to ]]
    [[- end ]]
      }
  [[- end ]]
[[- end ]]
[[- if conv.ToBool $c.prometheus.enabled ]]
      port "metrics" {}
[[- end ]]
    }

    service {
      name = "[[ .instance ]]-sidecar[[ .consul.suffix ]]"
      port = "https"

[[ template "common/connect" $c ]]
    }

    service {
      name = "[[ .instance ]][[ .consul.suffix ]]"
      port = "https"
      task = "traefik"

[[ template "common/service_meta" $c ]]

      # Traefik supports native Consul service mesh
      connect {
        native = true
      }

      tags = [
[[- $a := merge $c.api $c ]]
        "[[ .instance ]].http.routers.[[ .instance ]]-api.rule=(Host(`[[ ($c.public_url | urlParse).Hostname ]]`) || HostRegexp(`(.+\\.)?[[ .instance ]].service.[[ .consul.domain ]]`)) && (PathPrefix(`/api`) || PathPrefix(`[[ (.traefik.public_url | urlParse).Path ]]`))",
        "[[ .instance ]].http.routers.[[ .instance ]]-api.service=api@internal",
[[ template "common/traefik_tags" $a ]]

[[- $p := merge $c.ping $c ]]
        "[[ .instance ]].http.routers.[[ .instance ]]-ping.rule=(Host(`[[ (.traefik.public_url | urlParse).Hostname ]]`) || HostRegexp(`(.+\\.)?[[ .instance ]].service.[[ .consul.domain ]]`)) && Path(`/ping`) && Method(`GET`)",
        "[[ .instance ]].http.routers.[[ .instance ]]-ping.service=ping@internal",
[[ template "common/traefik_tags" $p ]]

        "traefik-${NOMAD_ALLOC_INDEX}"
      ]
    }

[[- template "common/task.metrics_proxy" $c ]]

    task "traefik" {
      driver = "[[ $c.nomad.driver ]]"
      user   = 5443

[[ template "common/vault.policies" $c ]]

      config {
        image           = "[[ .traefik.image]]"
        readonly_rootfs = true
        pids_limit      = 300
        command         = "traefik"
        args            = [
          "--configfile=/secrets/traefik.yml"
        ]
      }

      # Main traefik configuration
      template {
        data        =<<_EOF
[[ template "traefik/traefik.yml.tpl" $c ]]
_EOF
        destination = "secrets/traefik.yml"
        perms       = "0400"
        uid         = 105443
        gid         = 100000
      }

  # Dynamic file configuration
  [[- range $file := coll.Slice "basicauth" "lemonldap" "certificates" "ip" "performance" "security" "proxy" ]]

      template {
        data        =<<_EOF
[[ tmpl.Exec (printf "traefik/config/%s.yml.tpl" $file) $ ]]
_EOF
        destination = "secrets/config/[[ $file ]].yml"
        change_mode = "noop"
        perms       = "0400"
        uid         = 105443
        gid         = 100000
      }

[[ end -]]

[[ template "common/resources" $c ]]
    }

[[- if .lemonldap.enabled ]]

  [[- $c = merge .lemonldap . ]]

    # LL::NG handler for sso
    task "lemonldap-ng-handler" {
      driver = "[[ $c.nomad.driver ]]"

      config {
        image = "[[ .lemonldap.image ]]"
        volumes = [
          "secrets/lemonldap-ng.ini:/etc/lemonldap-ng/lemonldap-ng.ini:ro",
        ]
        # Add a tmpfs to store config and session cache
[[ template "common/tmpfs" dict "size" "10000000" "target" "/tmp" ]]
      }

      lifecycle {
        hook    = "prestart"
        sidecar = true
      }

      env {
        LLNG_SOCKET_PROTO = "http"
        LLNG_LISTEN       = "127.0.0.1:8183"
        SOURCE_SERVER     = "traefik"
        MINIT_UNIT_DIR    = "/local/minit.d"
      }

[[ template "common/file_env" $c ]]

      vault {
        policies     = ["[[ .instance ]][[ .consul.suffix ]]"]
        env          = false
        disable_file = true
      }

      template {
        data        =<<_EOT
[[ template "traefik/lemonldap-ng.ini.tpl" . ]]
_EOT
        destination = "secrets/lemonldap-ng.ini"
        perms       = "0400"
        uid         = 100048
        gid         = 100048
      }

      template {
        data =<<_EOT
[[ template "traefik/minit.yml.tpl" . ]]
_EOT
        destination = "local/minit.d/lemonldap-ng.yml"
      }

      [[ template "common/resources" $c ]]
    }
[[- end ]]
  }
}

# vim: syntax=hcl