Belajar Hashicorp Nomad - Instalasi di Localhost & Deploy nginx

Mencoba Nomad di localhost, deploy redis dan trafex/php-nginx

2024-03-04

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Instalasi Nomad

Kamu bisa lihat lengkapnya di dokumentasi Nomad

Install dependensi package

sudo apt-get update && \
sudo apt-get install wget gpg coreutils

Tambahkan HashiCorp GPG key

wget -O- https://apt.releases.hashicorp.com/gpg | sudo gpg --dearmor -o /usr/share/keyrings/hashicorp-archive-keyring.gpg

Tambahkan repo HashiCorp

echo "deb [signed-by=/usr/share/keyrings/hashicorp-archive-keyring.gpg] https://apt.releases.hashicorp.com $(lsb_release -cs) main" | sudo tee /etc/apt/sources.list.d/hashicorp.list

Install Nomad

sudo apt-get update && sudo apt-get install nomad

Test dengan nomad --help

Deploy Nginx

Jalankan agent development di localhost dengan sudo nomad agent -dev. Kamu bisa buka dashboard Nomad di localhost:4646

Nomad Dashboard

Buat 1 file baru, nginx.hcl

job "nginx" {
  datacenters = ["dc1"]

  group "cache" {
    count = 1

    network {
      port "nginx" { static = 80 }
    }

    task "nginx" {
      driver = "docker"

      config {
        image = "nginx:latest"
        ports = ["nginx"]
      }
    }
  }
}

Jalankan nomad job run nginx.hcl. Lalu buka browser, typing localhost

nomad job run nginx.hcl — nomad job run nginx.hcl

Cek detail service “nginx”, nomad status nginx

nomad status nginx — nomad status nginx

Cek detail container “nginx”, nomad alloc status ID

nomad alloc status ID — nomad alloc status ID

Cek log container “nginx”, nomad alloc logs -f ID

nomad alloc logs -f ID — nomad alloc logs -f ID

Port Forwarding

Buat file baru, nginx-port-forwarding.hcl

job "nginx-port-forwarding" {
  datacenters = ["dc1"]

  group "app" {
    count = 1

    network {
      port "nginx-port-forwarding" { 
          static = 88
          to = 80 
          }
    }

    task "nginx-port-forwarding" {
      driver = "docker"

      config {
        image = "nginx:latest"
        ports = ["nginx-port-forwarding"]
      }
    }
  }
}

Jalankan nomad run nginx-port-forwarding.hcl

Silahkan buka di localhost:88

Random Port Deployment

Buat file baru, nginx-random-port.hcl

job "nginx-random-port" {
  datacenters = ["dc1"]

  group "app" {
    count = 1

    network {
      port "nginx-random-port" { 
          to = 80 
          }
    }

    task "nginx-random-port" {
      driver = "docker"

      config {
        image = "nginx:latest"
        ports = ["nginx-random-port"]
      }
    }
  }
}

Jalankan nomad run nginx-random-port.hcl

Random Port Deployment

Beberapa Command Nomad

#hapus & purge job
nomad job stop -purge nginx

nomad node status

nomad server members