Added wordpress disourse draft

roles/docker-wordpress/tasks/discourse/README.md

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+# Wordpress with Discourse Support
+
+This folder contains the files to setup Discourse support for Wordpress.
+IT's realized with the [WP Discourse Plugin](https://de.wordpress.org/plugins/wp-discourse/)

roles/docker-wordpress/tasks/discourse/generate-api-key.yml

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+- name: "Revoke old WP Discourse API keys via Rails"
+  command: >
+    docker exec {{ applications.discourse.container }}
+      rails runner "
+        user = User.find_by_username('system')
+        ApiKey
+          .where(
+            user_id: user.id,
+            description: 'WP Discourse Integration',
+            revoked_at: nil
+          )
+          .update_all(revoked_at: Time.current)
+      "
+  args:
+    chdir: "{{ docker_compose.directories.instance }}"
+  failed_when: false
+
+- name: "Generate new WP Discourse API key via Rails"
+  command: >
+    docker exec {{ applications.discourse.container }}
+      rails runner "
+        user = User.find_by_username('system')
+        ak   = ApiKey.create!(
+                 user_id:     user.id,
+                 token:       SecureRandom.hex,
+                 description: 'WP Discourse Integration'
+               )
+        puts ak.token
+      "
+  args:
+    chdir: "{{ docker_compose.directories.instance }}"
+  register: discourse_generated_api_key
+  failed_when: false
+
+- name: "Set fact for new WP Discourse API key"
+  set_fact:
+    vault_discourse_api_key: "{{ discourse_generated_api_key.stdout_lines[0] }}"

roles/docker-wordpress/tasks/discourse/install.yml

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+---
+- name: "Include docker-discourse"
+  include_role:
+    name: docker-discourse
+
+- name: "Generate Discourse API Key when WP Discourse is enabled"
+  include_tasks: generate-api-key.yml
+
+# Load after api key generation, so that it can be used
+- name: "Include WP Discourse vars"
+  include_vars:
+    file: "{{ role_path }}/vars/discourse.yml"
+    name: discourse_settings
+
+- name: "Install WP Discourse plugin"
+  command: >
+    docker-compose exec -u www-data -T application
+    wp plugin install wp-discourse --activate
+    --path={{ wordpress_docker_html_path }}
+  args:
+    chdir: "{{ docker_compose.directories.instance }}"
+
+- name: "Configure WP Discourse settings"
+  vars:
+    discourse_settings_json_b64: "{{ discourse_settings | to_json | b64encode }}"
+  command: >
+    docker-compose exec -u www-data -T application bash -lc
+    "wp eval \"update_option('wp_discourse_options', json_decode(base64_decode('{{ discourse_settings_json_b64 }}'), true));\" --path={{ wordpress_docker_html_path }}"
+  args:
+    chdir: "{{ docker_compose.directories.instance }}"