Add external database role and pipeline

Signed-off-by: Eric D. Helms <ericdhelms@gmail.com>

pipelines/external_database.yml

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+- hosts: localhost
+  vars_files:
+    - vars/external_database.yml
+  roles:
+    - forklift
+
+- hosts: "{{ forklift_database_name }}"
+  become: yes
+  vars_files:
+    - vars/external_database.yml
+  roles:
+    - role: forklift_versions
+      scenario: "{{ pipeline_type }}"
+      scenario_os: "{{ pipeline_os }}"
+      scenario_version: "{{ pipeline_version }}"
+    - role: postgresql
+
+- hosts: "{{ forklift_server_name }}"
+  become: yes
+  vars_files:
+    - vars/external_database.yml
+  roles:
+    - role: forklift_versions
+      scenario: "{{ pipeline_type }}"
+      scenario_os: "{{ pipeline_os }}"
+      scenario_version: "{{ pipeline_version }}"
+    - role: foreman_server_repositories
+    - role: etc_hosts
+    - role: update_os_packages
+    - role: foreman_installer
+      foreman_installer_options_internal_use_only:
+        - "--foreman-db-manage false"
+        - "--foreman-db-host {{ forklift_database_name }}"
+        - "--foreman-db-database foreman"
+        - "--foreman-db-password foreman"
+        - "--katello-candlepin-manage-db false"
+        - "--katello-candlepin-db-host {{ forklift_database_name }}"
+        - "--katello-candlepin-db-name candlepin"
+        - "--katello-candlepin-db-password candlepin"
+        - "--foreman-proxy-content-pulpcore-manage-postgresql false"
+        - "--foreman-proxy-content-pulpcore-postgresql-host {{ forklift_database_name }}"
+        - "--foreman-proxy-content-pulpcore-postgresql-db-name pulp"
+        - "--foreman-proxy-content-pulpcore-postgresql-password pulp"

pipelines/vars/external_database.yml

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+pipeline_type: katello
+pipeline_version: nightly
+pipeline_os: centos9-stream
+foreman_installer_scenario: katello
+server_box:
+  box: "{{ pipeline_os }}"
+  memory: 10240
+  ansible:
+    variables:
+      foreman_server_repositories_katello: true
+      foreman_installer_disable_system_checks: true
+      foreman_installer_scenario: katello
+      foreman_installer_additional_packages:
+        - "foreman-installer-katello"
+database_box:
+  box: "{{ pipeline_os }}"
+  memory: 4096
+  ansible:
+    variables:
+      postgresql_use_evr: true
+forklift_name: "pi-{{ pipeline_type }}-{{ pipeline_version }}-{{ pipeline_os }}-external-database"
+forklift_server_name: "pi-{{ pipeline_type }}-{{ pipeline_version }}-{{ pipeline_os }}-server"
+forklift_database_name: "pi-{{ pipeline_type }}-{{ pipeline_version }}-{{ pipeline_os }}-database"
+forklift_boxes:
+  "{{ {forklift_server_name: server_box, forklift_database_name: database_box} }}"

playbooks/external_database.yml

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+---
+- hosts: all
+  become: true
+  roles:
+    - postgresql

roles/postgresql/tasks/main.yml

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+---
+- name: 'Install postgres packages'
+  yum:
+    name: "{{ item }}"
+    state: installed
+  with_items:
+    - postgresql-server
+    - python-psycopg2
+    - postgresql-contrib
+
+- when: postgresql_use_evr
+  block:
+    - name: Include foreman server repositories
+      include_role:
+        name: katello_repositories
+
+    - name: 'Install postgresql-evr packages'
+      yum:
+        name: postgresql-evr
+        state: installed
+
+- name: 'Init PostgreSQL database'
+  command: postgresql-setup initdb
+  args:
+    creates: /var/lib/pgsql/data/postgresql.conf
+
+- name: 'Deploy pg_hba.conf'
+  copy:
+    dest: /var/lib/pgsql/data/pg_hba.conf
+    content: |
+      # TYPE  DATABASE        USER            ADDRESS                 METHOD
+
+      # "local" is for Unix domain socket connections only
+      local   all             all                                     ident
+
+      # IPv4 local connections:
+      host    all             all             127.0.0.1/32            md5
+
+      # IPv4 remote connections:
+      host    all             all             0.0.0.0/0               md5
+
+      # IPv6 local connections:
+      host    all             all             ::1/128                 md5
+    force: yes
+    mode: 0600
+    owner: postgres
+    group: postgres
+
+- name: Set listen addresses to *
+  lineinfile:
+    dest: /var/lib/pgsql/data/postgresql.conf
+    regexp: "^listen_addresses"
+    line: "listen_addresses = '*'"
+    state: present
+    backup: yes
+
+- name: 'Ensure PostgreSQL is running'
+  service:
+    name: postgresql
+    state: restarted
+    enabled: yes
+
+- name: 'Add database user'
+  become_user: postgres
+  postgresql_user:
+    state: present
+    name: "foreman"
+    password: "foreman"
+
+- name: 'Create Foreman database'
+  become_user: postgres
+  postgresql_db:
+    state: present
+    name: "foreman"
+    owner: "foreman"
+
+- name: 'Add candlepin database user'
+  become_user: postgres
+  postgresql_user:
+    state: present
+    name: "candlepin"
+    password: "candlepin"
+
+- name: 'Create Candlepin database'
+  become_user: postgres
+  postgresql_db:
+    state: present
+    name: "candlepin"
+    owner: "candlepin"
+
+- name: 'Add pulp database user'
+  become_user: postgres
+  postgresql_user:
+    state: present
+    name: "pulp"
+    password: "pulp"
+
+- name: 'Create Pulp database'
+  become_user: postgres
+  postgresql_db:
+    state: present
+    name: "pulp"
+    owner: "pulp"