SemaphoreUI Docker Splash Demo

Demo Ansible molto semplice, pensata per essere eseguita da SemaphoreUI:

• test.yml: verifica connettivita e prerequisiti
• deploy.yml: deploy di un container Nginx Docker con pagina HTML custom
• undeploy.yml: rimozione container e cleanup

Struttura

ansible-semaphore-docker-demo/
  ansible.cfg
  inventory
  requirements.yml
  deploy.yml
  test.yml
  undeploy.yml
  group_vars/
    all.yml
    secrets.yml
  roles/
    splash/
      tasks/main.yml
      templates/index.html.j2
      templates/nginx.conf.j2
  semaphore_dagster_config.example.yml

Prerequisiti host target

• Linux con accesso SSH
• Privilegi sudo/root
• Debian/Ubuntu (nel playbook installo docker.io e python3-docker)

Uso locale rapido

cd ansible-semaphore-docker-demo
ansible-galaxy collection install -r requirements.yml
ansible-playbook -i inventory test.yml
ansible-playbook -i inventory deploy.yml
ansible-playbook -i inventory undeploy.yml

Accesso app

Dopo il deploy:

• http://<IP_SERVER>:8090
• healthcheck: http://<IP_SERVER>:8090/health

Variabili principali

In group_vars/all.yml:

• app_port
• greeting_message
• container_name
• nginx_version
• accent_color
• secondary_color

In group_vars/secrets.yml:

• app_secret
• release_id

Per produzione: cifra group_vars/secrets.yml con Ansible Vault.

SemaphoreUI

Per bootstrap automatico con il tuo DAG, usa il file:

• semaphore_dagster_config.example.yml

Basta aggiornare URL Semaphore, token API, project ID, repo URL e inventory content.