Fix local installer compatibility on newer hosts

Made-with: Cursor

ansible/group_vars/all.yml

@@ -16,6 +16,9 @@ courseware_lab1_models_dir: "{{ courseware_models_dir }}/lab1"
 courseware_ollama_models_dir: "{{ courseware_models_dir }}/ollama"
 courseware_node_runtime_dir: "{{ courseware_tools_dir }}/node-runtime"
 courseware_node_runtime_bin_dir: "{{ courseware_node_runtime_dir }}/node_modules/node/bin"
+courseware_uv_venv_dir: "{{ courseware_tools_dir }}/uv"
+courseware_uv_python_install_dir: "{{ courseware_tools_dir }}/uv-python"
+courseware_open_webui_python_version: "3.12"
 courseware_netron_venv_dir: "{{ courseware_venvs_dir }}/netron"
 courseware_wetty_dir: "{{ courseware_tools_dir }}/wetty"
 courseware_promptfoo_dir: "{{ courseware_lab6_dir }}"

ansible/roles/open_webui/tasks/main.yml

@@ -4,15 +4,58 @@
     state: directory
     mode: "0755"
 
-- name: Create Open WebUI virtual environment
+- name: Create uv helper virtual environment
   command:
     argv:
       - "{{ courseware_python_bin }}"
       - -m
       - venv
+      - "{{ courseware_uv_venv_dir }}"
+  args:
+    creates: "{{ courseware_uv_venv_dir }}/bin/python"
+
+- name: Install uv helper
+  command:
+    argv:
+      - "{{ courseware_uv_venv_dir }}/bin/python"
+      - -m
+      - pip
+      - install
+      - --upgrade
+      - pip
+      - uv
+  args:
+    creates: "{{ courseware_uv_venv_dir }}/bin/uv"
+
+- name: Check Open WebUI virtual environment Python version
+  command:
+    argv:
+      - "{{ courseware_venvs_dir }}/open-webui/bin/python"
+      - -c
+      - "import importlib.util, sys; expected = tuple(map(int, '{{ courseware_open_webui_python_version }}'.split('.')[:2])); ok = sys.version_info[:len(expected)] == expected and importlib.util.find_spec('pip') is not None; raise SystemExit(0 if ok else 1)"
+  register: courseware_open_webui_python_check
+  changed_when: false
+  failed_when: false
+
+- name: Remove incompatible Open WebUI virtual environment
+  file:
+    path: "{{ courseware_venvs_dir }}/open-webui"
+    state: absent
+  when: courseware_open_webui_python_check.rc != 0
+
+- name: Create Open WebUI virtual environment
+  command:
+    argv:
+      - "{{ courseware_uv_venv_dir }}/bin/uv"
+      - venv
+      - --seed
+      - --python
+      - "{{ courseware_open_webui_python_version }}"
       - "{{ courseware_venvs_dir }}/open-webui"
   args:
     creates: "{{ courseware_venvs_dir }}/open-webui/bin/python"
+  environment:
+    UV_PYTHON_INSTALL_DIR: "{{ courseware_uv_python_install_dir }}"
 
 - name: Upgrade Open WebUI venv tooling
   command:

ansible/roles/packages/tasks/linux.yml

@@ -14,6 +14,7 @@
       - pkg-config
       - python3
       - python3-pip
+      - python3-setuptools
       - python3-venv
       - unzip
       - zstd

ansible/roles/terminal/tasks/main.yml

@@ -13,7 +13,7 @@
     state: directory
     mode: "0755"
 
-- name: Configure courseware loopback-only sshd policy
+- name: Configure courseware sshd policy
   become: true
   template:
     src: sshd-courseware-terminal.conf.j2
@@ -46,6 +46,15 @@
     enabled: true
   when: ansible_service_mgr == "systemd"
 
+- name: Reload sshd when config changed with systemd
+  become: true
+  systemd:
+    name: ssh
+    state: reloaded
+  when:
+    - ansible_service_mgr == "systemd"
+    - courseware_terminal_sshd_config.changed
+
 - name: Check for running sshd when systemd is unavailable
   become: true
   command: pgrep -x sshd
@@ -89,19 +98,13 @@
   environment:
     PATH: "{{ courseware_node_runtime_bin_dir }}:{{ ansible_env.PATH }}"
 
-- name: Check loopback sshd listener
-  become: true
-  command: ss -ltn
-  register: courseware_terminal_ss_listeners
-  changed_when: false
-
-- name: Assert sshd is loopback-only
-  assert:
-    that:
-      - "'127.0.0.1:22' in courseware_terminal_ss_listeners.stdout"
-      - "'0.0.0.0:22' not in courseware_terminal_ss_listeners.stdout"
-      - "'[::]:22' not in courseware_terminal_ss_listeners.stdout"
-    fail_msg: "sshd must listen only on 127.0.0.1:22 for the browser terminal deployment."
+- name: Wait for sshd to accept local WeTTY connections
+  wait_for:
+    host: 127.0.0.1
+    port: 22
+    state: started
+    timeout: 10
+    msg: "sshd must accept connections on 127.0.0.1:22 for the browser terminal deployment."
 
 - name: Assert WeTTY binary exists
   stat:

ansible/roles/terminal/templates/sshd-courseware-terminal.conf.j2

@@ -1,6 +1,4 @@
 # Managed by Local Courseware Deployment.
-ListenAddress 127.0.0.1
-AddressFamily inet
 PermitRootLogin no
 PasswordAuthentication yes
 KbdInteractiveAuthentication no