nomad consul discover example

stackbook.nomad

 job "docs" {
   datacenters = ["dc1"]
   group "db" {
     network {
       mode = "bridge"
     }

     service {
       name = "db-host"
       port = "3306"

       connect {
         sidecar_service {}
       }
     }

     task "db" {
       driver = "docker"
       config {
         image = "mariadb"
          volumes = [
          "docker-entrypoint-initdb.d/:/docker-entrypoint-initdb.d/",
        ]
       }
        env {
        "MYSQL_USER"="bookstack"
        "MYSQL_ROOT_PASSWORD"="yourdbpass"
        "MYSQL_DATABASE"="bookstackapp"
      }
      template {
        data = <<EOH
CREATE DATABASE dbwebappdb;
CREATE USER 'dbwebapp'@'%' IDENTIFIED BY 'dbwebapppass';
GRANT ALL PRIVILEGES ON dbwebappdb.* TO 'dbwebapp'@'%';
EOH
        destination = "/docker-entrypoint-initdb.d/db.sql"
      }
     }
   }

   group "app" {
     network {
       mode = "bridge"
       port "http" {
         static = 8080
         to     = 80
       }
     }

     service {
       name = "app"
       port = "80"

       connect {
         sidecar_service {
           proxy {
             upstreams {
               destination_name = "db-host"
               local_bind_port = 8081
             }
           }
         }
       }
     }

     task "bookstack" {
       driver = "docker"
       env {
        DB_HOST="${NOMAD_UPSTREAM_ADDR_db_host}"
        DB_DATABASE="dbwebappdb"
        DB_USERNAME="dbwebapp"
        DB_PASSWORD="dbwebapppass"
       }
       config {
         image = "solidnerd/bookstack"
       }
     }
   }
 }