Adds pulp-content role for the pulp_content_app

closes #4302
https://pulp.plan.io/issues/4302

molecule/default/playbook.yml

@@ -5,3 +5,4 @@
     - pulp3-workers
     - pulp3-resource-manager
     - pulp3-webserver
+    - pulp3-content

roles/pulp3-content/README.md

@@ -0,0 +1,16 @@
+pulp3-content
+=============
+
+Install, configure, and set the state of pulp content app.
+
+Shared variables:
+-----------------
+
+* `ansible_python_interpreter`: **Required**. Path to the Python interpreter.
+
+This role **is not tightly coupled** with the `pulp3-postgresql` role, but it does
+use some of the same variables. When used together, the values are inherited from
+the role. When not used together, these values are **required**.
+
+* `pulp_user`
+* `pulp_install_dir`

roles/pulp3-content/defaults/main.yml

@@ -0,0 +1,4 @@
+---
+pulp_content_app:
+  state: started
+  enabled: true

roles/pulp3-content/handlers/main.yml

@@ -0,0 +1,7 @@
+---
+- name: Reload systemd and restart pulp content app
+  systemd:
+    daemon_reload: true
+    name: pulp_content_app.service
+    state: restarted
+  become: true

roles/pulp3-content/meta/main.yml

@@ -0,0 +1,11 @@
+---
+galaxy_info:
+  author: Pulp
+  description: Pulp content app 
+  company: Red Hat
+  min_ansible_version: 2.4
+  platforms:
+    - name: Fedora
+      versions:
+        - 28
+  license: GPL-3.0

roles/pulp3-content/tasks/main.yml

@@ -0,0 +1,18 @@
+---
+- name: Install pulp_content_app service file
+  template:
+    src: pulp_content_app.service.j2
+    dest: /lib/systemd/system/pulp_content_app.service
+    owner: root
+    group: root
+    mode: 0644
+  notify: Reload systemd and restart pulp content app
+  become: true
+
+- name: Set state of pulp content app
+  systemd:
+    daemon_reload: true
+    name: pulp_content_app.service
+    state: started
+    enabled: true
+  become: true

roles/pulp3-content/templates/pulp_content_app.service.j2

@@ -0,0 +1,23 @@
+[Unit]
+Description=Pulp Content App
+After=network-online.target
+Wants=network-online.target
+
+# This service will break if left running while PostgreSQL restarts.
+BindsTo=postgresql.service
+After=postgresql.service
+
+[Service]
+EnvironmentFile=-/etc/default/pulp_workers
+EnvironmentFile=-/etc/default/pulp_workers_%i
+Environment="DJANGO_SETTINGS_MODULE=pulpcore.app.settings"
+User={{ pulp_user }}
+WorkingDirectory=/var/run/pulp_content_app/
+RuntimeDirectory=pulp_content_app
+ExecStart={{ pulp_install_dir }}/bin/gunicorn pulpcore.content:server \
+          --bind 'localhost:8080' \
+          --worker-class 'aiohttp.GunicornWebWorker' \
+          -w 2
+
+[Install]
+WantedBy=multi-user.target

source-install.yml

@@ -25,4 +25,5 @@
     - pulp3-workers
     - pulp3-resource-manager
     - pulp3-webserver
+    - pulp3-content
     - pulp3-devel