natelandau_ansible-homelab-config/templates/nomad_jobs/diagnostics.hcl

job "diagnostics" {
  region      = "global"
  datacenters = ["{{ datacenter_name }}"]
  type        = "service"

  constraint {
    attribute = "${node.unique.name}"
    operator  = "regexp"
    value     = "rpi1"
  }

  group "diagnostics" {

    count = 1

    restart {
      attempts = 0
      delay    = "30s"
    }

    network {
        port "whoami" {
            to     = 80
        }
    }

    task "diagnostics" {

      // env {
      //   KEY = "VALUE"
      // }

      driver = "docker"
      config {
        image    = "alpine:latest"
        hostname = "${NOMAD_JOB_NAME}"
        args     = [
          "/bin/sh",
          "-c",
          "chmod 755 /local/bootstrap.sh && /local/bootstrap.sh"
        ]
        volumes   = [
          "${meta.nfsStorageRoot}/pi-cluster/backups/config_backups:/backups",
          "${meta.localStorageRoot}:/docker"
        ]
      } // docker config

      template {
        destination = "local/bootstrap.sh"
        data        = <<EOH
          #!/bin/sh

          apk update
          apk add --no-cache bash
          apk add --no-cache bind-tools
          apk add --no-cache curl
          apk add --no-cache git
          apk add --no-cache jq
          apk add --no-cache openssl
          apk add --no-cache iperf3
          apk add --no-cache nano
          apk add --no-cache wget

          tail -f /dev/null   # Keep container running
          EOH
      }

    } // task diagnostics
    task "whoami" {
        driver = "docker"
        config {
          image         = "containous/whoami:latest"
          hostname      = "${NOMAD_TASK_NAME}"
          ports         = ["whoami"]

        } // /docker config

        service {
          port = "whoami"
          name = "${NOMAD_JOB_NAME}"
          provider = "nomad"
          tags = [
            "traefik.enable=true",
            "traefik.http.routers.${NOMAD_JOB_NAME}.rule=Host(`${NOMAD_JOB_NAME}.{{ homelab_domain_name }}`)",
            "traefik.http.routers.${NOMAD_JOB_NAME}.entryPoints=web,websecure",
            "traefik.http.routers.${NOMAD_JOB_NAME}.service=${NOMAD_JOB_NAME}",
            "traefik.http.routers.${NOMAD_JOB_NAME}.tls=true",
            "traefik.http.routers.${NOMAD_JOB_NAME}.tls.certresolver=cloudflare"
            ]
          check {
            type     = "http"
            path     = "/"
            interval = "90s"
            timeout  = "15s"
          }
          check_restart {
            limit           = 2
            grace           = "1m"
          }
        }
        resources {
            cpu    = 25 # MHz
            memory = 10 # MB
        }

    } // /task whoami

  } // group
} // job