traefik.nomad

job "traefik" {
  region      = "global"
  datacenters = ["dc1"]
  type        = "service"

  group "traefik" {
    count = 1

    network {
      port "http" {
        static = 8080
      }

      port "api" {
        static = 8081
      }
    }

    service {
      name = "traefik"

      check {
        name     = "alive"
        type     = "tcp"
        port     = "http"
        interval = "10s"
        timeout  = "2s"
      }
    }

    task "traefik" {
      driver = "docker"

      config {
        image = "traefik:v2.2"

        ports = ["api", "http"]

        volumes = [
          "local/traefik.toml:/etc/traefik/traefik.toml",
        ]
      }

      template {
        data = <<EOF
[entryPoints]
    [entryPoints.http]
    address = ":8080"
    [entryPoints.traefik]
    address = ":8081"

[api]
    dashboard = true
    insecure  = true

[providers]
  [providers.file]
    directory = "/etc/traefik"

[http]
  [http.routers]
    [http.routers.http]
      rule = "Path(`/myapp`)"
      service = "demo-webapp"

  [http.services]
    [http.services.demo-webapp.loadBalancer]

  {{ range service "demo-webapp" }}
      [[http.services.demo-webapp.loadBalancer.servers]]
        url = "http://host.docker.internal:{{ .Port }}/"
  {{ end }}
EOF

        destination = "local/traefik.toml"
      }

      resources {
        cpu    = 100
        memory = 128
      }
    }
  }
}