.playbook.yml

# Create a compute instance on OpenStack using Ansible
---
- name: Launch an OpenStack compute instance
  hosts: localhost
  vars_files:
    - vars/main.yml

  tasks:

    # Create key file with 0600 permissions
    # http://docs.ansible.com/ansible/copy_module.html
    - name: Add private key
      copy:
        content: "{{ id_rsa_base64| b64decode }}"
        dest: "{{ user_home }}/{{ rsa_filename }}"
        mode: 0600

    # Generate a public key from the private key
    # http://docs.ansible.com/ansible/shell_module.html
    - name: Generate public key
      shell: "ssh-keygen -P '' -y -f {{ user_home }}/{{ rsa_filename }} > {{ user_home }}/{{ rsa_filename }}.pub"

    # Add the public key to OpenStack
    # http://docs.ansible.com/ansible/os_keypair_module.html
    - name: Add keypair
      os_keypair:
        state: present
        name: "{{ os_key_name }}"
        public_key_file: "{{ user_home }}/{{ rsa_filename }}.pub"
        auth:
          auth_url: "{{ os_auth_url }}"
          username: "{{ os_username }}"
          password: "{{ os_password }}"
          project_name: "{{ os_proj_name }}"
      register: "create_key"

    # Launch an OpenStack compute instance
    # http://docs.ansible.com/ansible/os_server_module.html
    - name: Launch the compute instance
      os_server:
        state: present
        auth:
          auth_url: "{{ os_auth_url }}"
          username: "{{ os_username }}"
          password: "{{ os_password }}"
          project_name: "{{ os_proj_name }}"
        name: "{{ os_vm_name }}"
        flavor_ram: "{{ os_vm_ram }}"
        image: "{{ os_vm_image }}"
        key_name: "{{ os_key_name }}"
      register: "create_server"

    # Add system to host_group
    # http://docs.ansible.com/ansible/add_host_module.html
    - name: Add system as host
      add_host:
        hostname: "OpenStack Instance ({{ os_vm_image }})"
        ansible_host: "{{ create_server.openstack.public_v4 }}"
        ansible_port: "{{ ssh_port }}"
        groups: "{{ host_group }}"
        ansible_ssh_private_key_file: "{{ user_home }}/{{ rsa_filename }}"

    # Wait for port to be opened
    # http://docs.ansible.com/ansible/wait_for_module.html
    - name: Wait for SSH to be active
      local_action: wait_for port="{{ ssh_port }}" host="{{ create_server.openstack.public_v4 }}" search_regex=OpenSSH

# --------------------------------------------------------------------------------
# Install Node.JS on the created instance
- name: Configure instance to run a Node.JS app
  hosts: new_hosts #must match groupname in "add_host" above
  user: ubuntu
  vars:
    app_folder: "bluemix-node-sample"
  tasks:

    # Update apt list
    # http://docs.ansible.com/ansible/apt_module.html
    - name: Update apt list
      apt:
        update_cache: yes
      become: true

    # Install APT packages
    - name: Install packages
      apt:
        name: "{{ item }}"
      become: true
      with_items:
        - git
        - build-essential
        - python-dev
        - python-pip

    # Install PIP packages
    # http://docs.ansible.com/ansible/pip_module.html
    - name: pip install
      pip:
        name: "{{ item }}"
      become: true
      with_items:
        - urllib3
        - pyopenssl
        - ndg-httpsclient
        - pyasn1

    # Add key for Node.JS
    # http://docs.ansible.com/ansible/apt_key_module.html
    - name: Add apt key for nodesource
      apt_key: url=https://deb.nodesource.com/gpgkey/nodesource.gpg.key
      become: true

    # Add the Node.JS repo
    # http://docs.ansible.com/ansible/apt_repository_module.html
    - name: add repo for nodesource
      apt_repository:
        repo: 'deb https://deb.nodesource.com/node_6.x {{ ansible_distribution_release }} main'
        update_cache: true
      become: true

    # Instal Node.JS
    - name: Install packages
      apt:
        name: nodejs
      become: true
      register: output

    # Clone the Node.JS project
    # http://docs.ansible.com/ansible/git_module.html
    - name: clone repo
      git:
        repo: https://github.com/IBMCloudDevOps/bluemix-node-sample
        accept_hostkey: yes
        force: yes
        dest: "{{ ansible_env.HOME }}/{{ app_folder }}"

    # Install npm packages
    # http://docs.ansible.com/ansible/command_module.html
    - name: npm install
      command: "npm install"
      args:
        chdir: "{{ ansible_env.HOME }}/{{ app_folder }}"

    # Run node server as cronjob
    # http://docs.ansible.com/ansible/cron_module.html
    - name: Start server on boot
      cron:
        name: "Run node app"
        special_time: reboot
        job: "/usr/bin/nodejs  {{ ansible_env.HOME }}/{{ app_folder }}/app.js"

    # Reboot the server
    - name: Restart server
      command: /sbin/shutdown -r now
      async: 0
      poll: 0
      ignore_errors: true
      become: true

    - name: Print app URL
      debug: msg="Node app available at http://{{ ansible_host }}:3000"