wulf-ansible/playbooks/n8n.yml

- name: Deploy n8n
  hosts: all
  become: true

  vars:
    stack_dir: "/opt/stacks/{{ stack_name }}"

  pre_tasks:
    - name: Fail if stack_name is not set
      fail:
        msg: "stack_name is required"
      when: stack_name is not defined or stack_name | length == 0

    - name: Fail if n8n_url is not set
      fail:
        msg: "n8n_url is required"
      when: n8n_url is not defined or n8n_url | length == 0

  tasks:
    # 🔎 Check if 1Password item exists
    - name: Check if 1Password item exists
      shell: |
        op item get "{{ stack_name }}" --vault="semaphore-ansible"
      register: op_check
      failed_when: false
      changed_when: false
      check_mode: no
      delegate_to: localhost
      connection: local
      become: false
      no_log: true
      environment:
        OP_SERVICE_ACCOUNT_TOKEN: "{{ OP_SERVICE_ACCOUNT_TOKEN }}"

    # 🔐 Load existing secrets
    - name: Load secrets from 1Password
      when: op_check.rc == 0
      shell: |
        op item get "{{ stack_name }}" --vault="semaphore-ansible" --format json
      register: op_item
      check_mode: no
      delegate_to: localhost
      connection: local
      become: false
      no_log: true
      environment:
        OP_SERVICE_ACCOUNT_TOKEN: "{{ OP_SERVICE_ACCOUNT_TOKEN }}"

    - name: Set secrets from 1Password
      when: op_check.rc == 0
      no_log: true
      set_fact:
        n8n_postgres_password: "{{ (op_item.stdout | from_json).fields | selectattr('label','equalto','postgres_password') | map(attribute='value') | first }}"
        n8n_encryption_key: "{{ (op_item.stdout | from_json).fields | selectattr('label','equalto','encryption_key') | map(attribute='value') | first }}"

    # 🔑 Generate if new
    - name: Generate postgres password
      when: op_check.rc != 0
      no_log: true
      set_fact:
        n8n_postgres_password: "{{ lookup('password','/dev/null length=32 chars=ascii_letters') }}"

    - name: Generate encryption key
      when: op_check.rc != 0
      no_log: true
      set_fact:
        n8n_encryption_key: "{{ lookup('password','/dev/null length=64 chars=hexdigits') }}"

    # 📦 Store in 1Password
    - name: Create 1Password item
      when: op_check.rc != 0
      delegate_to: localhost
      connection: local
      become: false
      no_log: true
      shell: |
        op item create \
          --category="Server" \
          --title="{{ stack_name }}" \
          --vault="semaphore-ansible" \
          "url=https://{{ n8n_url }}" \
          "username={{ n8n_editor_email }}" \
          "password={{ n8n_editor_password }}" \
          "postgres_password={{ n8n_postgres_password }}" \
          "encryption_key={{ n8n_encryption_key }}"
      environment:
        OP_SERVICE_ACCOUNT_TOKEN: "{{ OP_SERVICE_ACCOUNT_TOKEN }}"

    # 🧱 Infrastructure
    - name: Ensure stack directory exists
      file:
        path: "{{ stack_dir }}"
        state: directory
        mode: "0755"

    - name: Ensure pangolin network exists
      community.docker.docker_network:
        name: pangolin
        state: present

    # 📄 Templates
    - name: Render .env
      template:
        src: templates/n8n.env.j2
        dest: "{{ stack_dir }}/.env"
        mode: "0600"

    - name: Render compose file
      template:
        src: templates/n8n-compose.yml.j2
        dest: "{{ stack_dir }}/compose.yml"

    # 🚀 Deploy
    - name: Deploy stack
      command: docker compose up -d
      args:
        chdir: "{{ stack_dir }}"
      when: not ansible_check_mode