Refactor dependency installation and systemd exec cmd (#9)

* Refactor installation of openwebui in venv:

* Include the uusrc.general.uv role from within our openwebui role, instead of from within the playbook. This allows us to use the same variable for venv location everywhere.
* No need for the install-dependencies role, just uv pip install openwebui :)
* Simplify systemd exec command

Author: dometto

playbook.yml

@@ -4,14 +4,7 @@
     - all
     - localhost
   gather_facts: true
-  vars: {}
   roles:
-    - role: uusrc.general.uv
-      vars:
-        uv_vens: { path: '/.venv', python: '3.11' }
-        uv_python_versions: [ '3.11' ]
-        # uv_become: false
-        # uv_become_user: 
     - role: ollama-serve
       vars:
         ollama_serve_model: "{{ model }}"

roles/install-dependencies/defaults/main.yml

@@ -8,6 +8,21 @@
     name: openwebui
     system: true
     createhome: true
+    home: "{{ openwebui_home }}"
+
+- name: Install uv
+  ansible.builtin.include_role:
+    name: uusrc.general.uv
+  vars:
+    uv_venvs:
+      - path: "{{ openwebui_venv }}"
+        python: '3.11'
+    uv_python_versions: [ '3.11' ]
+
+- name: Install openwebui in venv
+  ansible.builtin.command: uv pip install open-webui
+  environment:
+    VIRTUAL_ENV: "{{ openwebui_venv }}"
 
 - name: Place systemd config file
   ansible.builtin.template:

roles/install-dependencies/meta/main.yml

@@ -8,7 +8,7 @@ WorkingDirectory=/home/openwebui
 {% for var_name, value in openwebui_env.items() %}
 Environment="{{ var_name }}={{ value }}"
 {% endfor %}
-ExecStart=/bin/sh -c 'source /.venv/bin/activate && open-webui serve'
+ExecStart={{ openwebui_venv }}/bin/open-webui serve
 Restart=always
 
 [Install]

roles/install-dependencies/tasks/main.yml

@@ -1,3 +1,5 @@
 #SPDX-License-Identifier: MIT-0
 ---
 # vars file for openwebui
+openwebui_home: /var/www/openwebui
+openwebui_venv: "{{ openwebui_home }}/venv"