publish on github

.travis.yml

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+---
+language: python
+python: "2.7"
+
+# Use the new container infrastructure
+sudo: false
+
+# Install ansible
+addons:
+  apt:
+    packages:
+    - python-pip
+
+install:
+  # Install ansible
+  - pip install ansible
+
+  # Check ansible version
+  - ansible --version
+
+  # Create ansible.cfg with correct roles_path
+  - printf '[defaults]\nroles_path=../' >ansible.cfg
+
+script:
+  # Basic role syntax check
+  - ansible-playbook tests/test.yml -i tests/inventory --syntax-check
+
+notifications:
+  webhooks: https://galaxy.ansible.com/api/v1/notifications/

.yamllint

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+---
+# Based on ansible-lint config
+extends: default
+
+rules:
+  braces:
+    max-spaces-inside: 1
+    level: error
+  brackets:
+    max-spaces-inside: 1
+    level: error
+  colons:
+    max-spaces-after: -1
+    level: error
+  commas:
+    max-spaces-after: -1
+    level: error
+  comments: disable
+  comments-indentation: disable
+  document-start: disable
+  empty-lines:
+    max: 3
+    level: error
+  hyphens:
+    level: error
+  indentation: disable
+  key-duplicates: enable
+  line-length: disable
+  new-line-at-end-of-file: disable
+  new-lines:
+    type: unix
+  trailing-spaces: disable
+  truthy: disable

README.md

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+Ansible Postgresql
+=========
+
+Requirements
+------------
+no requirements
+
+Example Playbook
+----------------
+
+Including an example of how to use your role (for instance, with variables passed in as parameters) is always nice for users too:
+```yaml
+- hosts: servers
+  roles:
+     - role: ansible-postgres
+       postgres_version: 13
+       pg_hba_user_options:
+       - contype: host
+         users: all
+         source: 127.0.0.1/32
+         databases: all
+         method: md5
+```
+
+License
+-------
+
+MIT
+
+## Devel
+for devel use
+https://github.com/ansible-community/molecule-libvirt
+
+requirements for testings
+KVM host
+```
+libvirt-python
+```

defaults/main.yml

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+---
+# defaults file for postgres
+postgres_repo: 'https://download.postgresql.org/pub/repos/yum/reporpms/EL-8-x86_64/pgdg-redhat-repo-latest.noarch.rpm'
+postgres_version: 13
+
+pg_hba_user_options:
+- contype: host
+  users: all
+  source: 127.0.0.1/32
+  databases: all
+  method: md5
+- contype: host
+  users: all
+  source: 192.168.100.10/24
+  databases: all
+  method: md5
+- contype: host
+  users: all
+  source: 192.168.200.1/24
+  databases: all
+  method: md5
+- contype: host
+  users: all
+  source: 192.169.100.1/24
+  databases: all
+  method: md5

handlers/main.yml

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+---
+# handlers file for postgres
+- name: start postgreql
+  ansible.builtin.systemd:
+    state: started
+    name: "postgresql-{{postgres_version}}"
+    enabled: yes
+
+- name: restart postgreql
+  ansible.builtin.systemd:
+    state: restarted
+    name: "postgresql-{{postgres_version}}"
+
+- name: reloaded postgreql
+  ansible.builtin.systemd:
+    state: reloaded
+    name: "postgresql-{{postgres_version}}"

meta/main.yml

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+galaxy_info:
+  role_name: role-postgres
+  author: Attilio Greco
+  description: install postgres in REHL family
+  company: your company (optional)
+
+  # If the issue tracker for your role is not on github, uncomment the
+  # next line and provide a value
+  # issue_tracker_url: http://example.com/issue/tracker
+
+  license: MIT
+
+  min_ansible_version: 4
+
+  # If this a Container Enabled role, provide the minimum Ansible Container version.
+  # min_ansible_container_version:
+
+  #
+  # Provide a list of supported platforms, and for each platform a list of versions.
+  # If you don't wish to enumerate all versions for a particular platform, use 'all'.
+  # To view available platforms and versions (or releases), visit:
+  # https://galaxy.ansible.com/api/v1/platforms/
+  #
+  platforms:
+  - name: Rocky linux
+    versions:
+    - 8.4
+
+  galaxy_tags: [database, postgres]
+
+dependencies: []

molecule/default/INSTALL.rst

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+*********************************
+LibVirt driver installation guide
+*********************************
+
+Requirements
+============
+
+* Configure libvirt
+
+Install
+=======

molecule/default/converge.yml

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+---
+- name: Converge
+  hosts: all
+  become: true
+  tasks:
+    - name: "Include postgres"
+      include_role:
+        name: "postgres"

molecule/default/molecule.yml

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+---
+name: galaxy
+driver:
+  name: libvirt
+platforms:
+  - name: instance-1
+    image_url: "http://remoteshare.4sigma.top/Rocky8.4-try-srinked.qcow2"
+    disk_size: "10G"
+    memory_size: "1" # in GB
+provisioner:
+  name: ansible
+verifier:
+  name: ansible

molecule/default/playbook.yml

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+---
+- name: Converge
+  hosts: all
+  become: yes
+  roles:
+    - role: postgres

molecule/default/prepare.yml

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+- name: prepare
+  hosts: all
+  become: true
+  tasks:
+  - name: prepare | install python3-pip
+    dnf:
+      name:
+        - python3-pip
+        - python3-devel
+        - gcc
+
+  - name: prepare | create ansible requirements
+    ansible.builtin.file:
+      path: /home/molecule/ansible
+      state: directory
+      owner: molecule
+      group: molecule
+      mode: '0644'

molecule/default/verify.yml

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+---
+# This is an example playbook to execute Ansible tests.
+
+- name: Verify
+  hosts: all
+  vars:
+    ansible_python_interpreter:
+  tasks:
+  - name: Verify | check postgres is running
+    ansible.builtin.systemd:
+      name: postgresql-13.service
+      state: started

tasks/configure_postgres.yml

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+- name: Grant users joe and simon access to databases sales and logistics from ipv6 localhost ::1/128 using peer authentication
+  community.postgresql.postgresql_pg_hba:
+    dest: /var/lib/pgsql/{{postgres_version}}/data/pg_hba.conf
+    contype: "{{ item.contype }}"
+    users: "{{ item.users }}"
+    source: "{{ item.source }}"
+    databases: "{{ item.databases }}"
+    method: "{{ item.method }}"
+    create: true
+  loop: "{{pg_hba_user_options}}"
+  notify:
+    - reloaded postgreql

tasks/init_postgres.yml

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+
+- name: postgres | init_postgres | init database
+  ansible.builtin.command: /usr/pgsql-{{postgres_version}}/bin/postgresql-{{postgres_version}}-setup initdb
+  register: postgresql_database_init
+  args:
+    creates: /var/lib/pgsql/13/initdb.log
+  notify:
+    - start postgreql
+
+- name: postgres | init_postgres | show posgres init
+  debug:
+    var: postgresql_database_init

tasks/install.yml

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+---
+- name: postgres | install | install postgres repo
+  dnf:
+    name: 'https://download.postgresql.org/pub/repos/yum/reporpms/EL-8-x86_64/pgdg-redhat-repo-latest.noarch.rpm'
+    state: present
+    disable_gpg_check: yes
+
+- name: postgres | install | disable postgresql module
+  ansible.builtin.command: dnf -qy module disable postgresql
+  register: postgresql_disable_repo
+  args:
+    creates: /etc/dnf/modules.d/postgresql.module
+
+- name: postgres | install | install postgresql
+  dnf:
+    name:
+      - postgresql{{postgres_version}}
+      - postgresql{{postgres_version}}-server
+    state: present

tasks/main.yml

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+---
+- import_tasks: tasks/install.yml
+- import_tasks: tasks/init_postgres.yml
+- import_tasks: configure_postgres.yml

templates/pg_hba.conf.j2

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+# TYPE  DATABASE        USER            ADDRESS                 METHOD
+{% for option_line in pg_hba_user_options -%}
+ {{ " " + option_line.type  }} {{ option_line.database  }} {{ option_line.user  }} {{ option_line.address  }} {{ option_line.method  }}
+{% endfor %}
+
+{% for option_line in pg_hba_default_options -%}
+ {{ " " + option_line.type  }} {{ option_line.database  }} {{ option_line.user  }} {{ option_line.address  }} {{ option_line.method  }}
+{% endfor %}

tests/inventory

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+localhost
+

tests/test.yml

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+---
+- hosts: localhost
+  remote_user: root
+  roles:
+    - postgres

vars/main.yml

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+---
+# vars file for postgres