added multica agent hosts

ansible/roles/multica_agent_host/tasks/multica_cli.yml

@@ -0,0 +1,72 @@
+---
+- name: CLI | Check whether the binary is already present
+  ansible.builtin.stat:
+    path: "{{ _multica_bin }}"
+  register: _multica_cli_stat
+  check_mode: false
+
+- name: CLI | Read the installed version
+  ansible.builtin.command:
+    argv: ["{{ _multica_bin }}", "--version"]
+  register: _multica_cli_installed
+  when: _multica_cli_stat.stat.exists
+  changed_when: false
+  failed_when: false
+  check_mode: false
+
+# `multica --version` prints e.g. "multica 0.6.5 (commit: ..., built: ...)".
+- name: CLI | Extract the installed version string
+  ansible.builtin.set_fact:
+    _multica_cli_version_found: >-
+      {{ ((_multica_cli_installed.stdout_lines | default([]) | first | default('')).split() + ['', ''])[1]
+         if (_multica_cli_installed.rc | default(1)) == 0 else '' }}
+
+- name: CLI | Decide whether an install is needed
+  ansible.builtin.set_fact:
+    _multica_cli_needs_install: "{{ (_multica_cli_version_found | trim) != multica_version }}"
+
+- name: CLI | Install the pinned release
+  when: _multica_cli_needs_install | bool
+  block:
+    - name: CLI | Create a staging directory
+      ansible.builtin.tempfile:
+        state: directory
+        suffix: multica-cli
+      register: _multica_stage
+      become: true
+
+    - name: CLI | Download the release tarball
+      ansible.builtin.get_url:
+        url: "{{ _multica_release_url }}"
+        dest: "{{ _multica_stage.path }}/{{ _multica_tarball }}"
+        checksum: "{{ ('sha256:' ~ _multica_checksums_url) if multica_verify_checksum | bool else omit }}"
+        mode: "0644"
+      become: true
+
+    - name: CLI | Unpack the binary
+      ansible.builtin.unarchive:
+        src: "{{ _multica_stage.path }}/{{ _multica_tarball }}"
+        dest: "{{ _multica_stage.path }}"
+        remote_src: true
+      become: true
+
+    # Replacing the binary while the daemon runs is fine — the handler restarts
+    # it, and the daemon also watches its own binary for version changes.
+    - name: CLI | Install it onto the PATH
+      ansible.builtin.copy:
+        src: "{{ _multica_stage.path }}/multica"
+        dest: "{{ _multica_bin }}"
+        remote_src: true
+        owner: root
+        group: root
+        mode: "0755"
+      become: true
+      notify: restart multica daemon
+
+  always:
+    - name: CLI | Remove the staging directory
+      ansible.builtin.file:
+        path: "{{ _multica_stage.path }}"
+        state: absent
+      become: true
+      when: _multica_stage.path is defined