[[ $c := merge .diagrams . -]]
job [[ .diagrams.instance | toJSON ]] {

[[ template "common/job_start.tpl" $c ]]

  group "diagrams" {
    network {
      mode = "bridge"
    }

    service {
      name = "[[ .diagrams.instance ]][[ .consul.suffix ]]"
      port = 8282

[[ template "common/connect.tpl" $c ]]

      check {
        type     = "http"
        path     = "/health"
        expose   = true
        interval = "1m"
        timeout  = "8s"

        check_restart {
          limit = 4
          grace = "1m"
        }
      }

      tags = [
        "[[ $c.traefik.instance ]].enable=[[ $c.traefik.enabled ]]",

        # Define a middleware to set custom CSP headers
        "[[ $c.traefik.instance ]].http.middlewares.[[ .diagrams.instance ]]-headers[[ .consul.suffix ]].headers.contentsecuritypolicy=[[ range $k, $v := $c.traefik.csp ]][[ $k ]] [[ $v ]];[[ end ]]",

[[- if not (regexp.Match "^/?$" (urlParse $c.public_url).Path) ]]
        # Diagrams exposed by traefik on a subpath. Define a middleware to strip the prefix before passing the request to the backend
        "[[ $c.traefik.instance ]].http.middlewares.[[ .diagrams.instance ]]-prefix[[ .consul.suffix ]].stripprefix.prefixes=[[ (urlParse .diagrams.public_url).Path ]]",
[[- end ]]

        # Main app router
        "[[ $c.traefik.instance ]].http.routers.[[ .diagrams.instance ]][[ .consul.suffix ]].rule=Host(`[[ (urlParse $c.public_url).Hostname ]]`)
  [[- if not (regexp.Match "^/?$" (urlParse $c.public_url).Path) ]] && PathPrefix(`[[ (urlParse $c.public_url).Path ]]`)[[ end ]]",
        "[[ $c.traefik.instance ]].http.routers.[[ .diagrams.instance ]][[ .consul.suffix ]].entrypoints=[[ join $c.traefik.entrypoints "," ]]",
[[- if not (regexp.Match "^/?$" (urlParse $c.public_url).Path) ]]
        "[[ $c.traefik.instance ]].http.routers.[[ .diagrams.instance ]][[ .consul.suffix ]].middlewares=[[ .diagrams.instance ]]-prefix[[ $c.consul.suffix ]],[[ .diagrams.instance ]]-headers[[ .consul.suffix ]],[[ template "common/traefik_middlewares.tpl" $c.traefik ]]",
[[- else ]]
        "[[ $c.traefik.instance ]].http.routers.[[ .diagrams.instance ]][[ .consul.suffix ]].middlewares=[[ .diagrams.instance ]]-headers[[ .consul.suffix ]],[[ template "common/traefik_middlewares.tpl" $c.traefik ]]",
[[- end ]]
      ]
    }

    task "diagrams" {
      driver = [[ $c.nomad.driver | toJSON ]]

      config {
        image           = [[ $c.image | toJSON ]]
        pids_limit      = 100
        readonly_rootfs = true
        volumes         = [
          "local/PreConfig.js:/opt/tomcat/webapps/draw/js/PreConfig.js",
          "local/PostConfig.js:/opt/tomcat/webapps/draw/js/PostConfig.js"
        ]
      }

      env {
        JAVA_OPTS = "-Djava.io.tmpdir=/local"
        TOMCAT_ADDRESS = "127.0.0.1"
      }

      template {
        data =<<_EOT
[[ template "diagrams/PreConfig.js.tpl" $c ]]
_EOT
        destination = "local/PreConfig.js"
      }

      template {
        data =<<_EOT
[[ template "diagrams/PostConfig.js.tpl" $c ]]
_EOT
        destination = "local/PostConfig.js"
      }

[[ template "common/file_env.tpl" $c.env ]]
[[ template "common/resources.tpl" $c.resources ]]
    }
  }
}