playbooks/roles/vhosts/apisix_service/tasks/main.yml

---
- name: Check docker CLI is present on the target node
  ansible.builtin.command: docker --version
  changed_when: false

- name: Check docker compose plugin is present on the target node
  ansible.builtin.command: docker compose version
  changed_when: false

- name: Check caddy CLI is present on the target node
  ansible.builtin.command: caddy version
  changed_when: false

- name: Check managed APISIX source tree
  ansible.builtin.stat:
    path: "{{ apisix_service_root }}"
  register: apisix_service_root_stat

- name: Check managed APISIX conf directory
  ansible.builtin.stat:
    path: "{{ apisix_service_conf_dir }}"
  register: apisix_service_conf_dir_stat

- name: Check managed APISIX docs directory
  ansible.builtin.stat:
    path: "{{ apisix_service_docs_dir }}"
  register: apisix_service_docs_dir_stat

- name: Check managed APISIX scripts directory
  ansible.builtin.stat:
    path: "{{ apisix_service_scripts_dir }}"
  register: apisix_service_scripts_dir_stat

- name: Check managed APISIX Caddy fragment directory
  ansible.builtin.stat:
    path: "{{ apisix_service_caddy_conf_dir }}"
  register: apisix_service_caddy_conf_dir_stat

- name: Check managed APISIX env file
  ansible.builtin.stat:
    path: "{{ apisix_service_env_file }}"
  register: apisix_service_env_file_stat

- name: Validate APISIX live configuration prerequisites
  ansible.builtin.assert:
    that:
      - apisix_service_env_file_stat.stat.exists
      - apisix_service_public_host | length > 0
      - apisix_service_http_port | int > 0
    fail_msg: >-
      api.svc.plus requires a preseeded .env plus a valid public host and HTTP port.      

- name: Determine whether managed APISIX files can be written in this run
  ansible.builtin.set_fact:
    apisix_service_source_tree_writable: "{{ (not ansible_check_mode) or apisix_service_root_stat.stat.exists }}"
    apisix_service_conf_writable: "{{ (not ansible_check_mode) or apisix_service_conf_dir_stat.stat.exists }}"
    apisix_service_docs_writable: "{{ (not ansible_check_mode) or apisix_service_docs_dir_stat.stat.exists }}"
    apisix_service_scripts_writable: "{{ (not ansible_check_mode) or apisix_service_scripts_dir_stat.stat.exists }}"
    apisix_service_caddy_writable: "{{ (not ansible_check_mode) or apisix_service_caddy_conf_dir_stat.stat.exists }}"

- name: Ensure managed APISIX directories exist
  ansible.builtin.file:
    path: "{{ item }}"
    state: directory
    owner: root
    group: root
    mode: "0755"
  loop:
    - "{{ apisix_service_root }}"
    - "{{ apisix_service_conf_dir }}"
    - "{{ apisix_service_docs_dir }}"
    - "{{ apisix_service_scripts_dir }}"
    - "{{ apisix_service_caddy_conf_dir }}"

- name: Copy managed APISIX source tree files
  ansible.builtin.copy:
    src: "{{ apisix_service_example_root }}/{{ item }}"
    dest: "{{ apisix_service_root }}/{{ item }}"
    owner: root
    group: root
    mode: "0644"
  loop: "{{ apisix_service_source_tree_files }}"
  when: apisix_service_source_tree_writable

- name: Copy managed APISIX config files
  ansible.builtin.copy:
    src: "{{ role_path }}/files/{{ item }}"
    dest: "{{ apisix_service_root }}/{{ item }}"
    owner: root
    group: root
    mode: "0644"
  loop: "{{ apisix_service_conf_files }}"
  when: apisix_service_conf_writable

- name: Copy managed APISIX docs
  ansible.builtin.copy:
    src: "{{ apisix_service_example_root }}/{{ item }}"
    dest: "{{ apisix_service_root }}/{{ item }}"
    owner: root
    group: root
    mode: "0644"
  loop: "{{ apisix_service_doc_files }}"
  when: apisix_service_docs_writable

- name: Copy managed APISIX helper scripts
  ansible.builtin.copy:
    src: "{{ role_path }}/files/{{ item }}"
    dest: "{{ apisix_service_root }}/{{ item }}"
    owner: root
    group: root
    mode: "0755"
  loop: "{{ apisix_service_script_files }}"
  when: apisix_service_scripts_writable

- name: Deploy managed APISIX Caddy fragment
  ansible.builtin.copy:
    src: "{{ apisix_service_example_root }}/Caddyfile"
    dest: "{{ apisix_service_caddy_fragment_path }}"
    owner: root
    group: root
    mode: "0644"
  notify: Reload caddy
  when: apisix_service_caddy_writable

- name: Validate APISIX env contract
  ansible.builtin.shell: |
    set -euo pipefail
    for key in \
      APISIX_HTTP_PORT \
      API_PUBLIC_HOST \
      OLLAMA_API_KEY \
      OLLAMA_CHAT_ENDPOINT \
      OLLAMA_CHAT_MODEL \
      OLLAMA_MINIMAX_MODEL \
      OLLAMA_KIMI_MODEL \
      NVIDIA_API_KEY \
      NVIDIA_CHAT_ENDPOINT \
      NVIDIA_CHAT_MODEL \
      KIMI_API_KEY \
      KIMI_CHAT_ENDPOINT \
      KIMI_CHAT_MODEL \
      MINIMAX_API_KEY \
      MINIMAX_CHAT_ENDPOINT \
      MINIMAX_CHAT_MODEL \
      EMBEDDINGS_API_KEY \
      EMBEDDINGS_ENDPOINT \
      EMBEDDINGS_MODEL \
      AI_GATEWAY_ACCESS_TOKEN
    do
      grep -q "^${key}=" "{{ apisix_service_env_file }}"
    done    
  changed_when: false
  when: apisix_service_validate_env | bool

- name: Validate Caddy configuration for APISIX
  ansible.builtin.command: caddy validate --config /etc/caddy/Caddyfile
  changed_when: false
  when: not ansible_check_mode

- name: Pull and start APISIX release
  ansible.builtin.shell: |
    set -euo pipefail
    docker compose -f "{{ apisix_service_compose_file }}" pull
    docker compose -f "{{ apisix_service_compose_file }}" up -d --remove-orphans    
  args:
    executable: /bin/bash
  changed_when: true
  when: not ansible_check_mode

- name: Wait for APISIX loopback port
  ansible.builtin.wait_for:
    host: 127.0.0.1
    port: "{{ apisix_service_http_port }}"
    timeout: 60
  when: not ansible_check_mode

- name: Reload Caddy after APISIX update
  ansible.builtin.command: systemctl reload caddy
  changed_when: true
  when: not ansible_check_mode

- name: Run APISIX health check
  ansible.builtin.command: "{{ apisix_service_scripts_dir }}/healthcheck.sh"
  changed_when: false
  when: not ansible_check_mode