Variable to use --no-cache-dir for pip installs

Author: tyler-8

defaults/main.yml

@@ -81,6 +81,7 @@ netbox_napalm_enabled: false
 netbox_napalm_packages:
   - napalm
 
+netbox_skip_pip_cache: false  # If true, use '--no-cache-dir' for pip installs in NetBox venv
 netbox_pip_packages: []
 netbox_pip_constraints:
   # Blacklist pynacl 1.3.0 due to https://github.com/pyca/pynacl/issues/479

tasks/deploy_netbox.yml

@@ -62,7 +62,7 @@
 - name: Install needed Python dependencies
   ansible.builtin.pip:
     requirements: "{{ netbox_shared_path }}/requirements.txt"
-    extra_args: "-c {{ netbox_shared_path }}/constraints.txt"
+    extra_args: "{{ (['-c {{ netbox_shared_path }}/constraints.txt'] + (['--no-cache-dir'] if netbox_skip_pip_cache else [])) | join(' ') }}"
     virtualenv: "{{ netbox_virtualenv_path }}"
   become: true
   become_user: "{{ netbox_user }}"
@@ -75,6 +75,7 @@
     name: "{{ item }}"
     state: present
     virtualenv: "{{ netbox_virtualenv_path }}"
+    extra_args: "{{ '--no-cache-dir' if netbox_skip_pip_cache else omit }}"
   become: true
   become_user: "{{ netbox_user }}"
   retries: 2
@@ -92,7 +93,7 @@
     content: |
       {% for dep in _netbox_python_deps %}
       {{ dep }}
-      {% endfor %}  
+      {% endfor %}
     dest: "{{ netbox_current_path }}/local_requirements.txt"
     owner: "{{ netbox_user }}"
     group: "{{ netbox_group }}"