add postgres1c role

roles/postgres1c/README.md

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+postgres1c
+=========
+
+Installs postgrespro1c (https://1c.postgres.ru/) as a system service.
+
+Requirements
+------------
+
+Linux (tested on Ubuntu 22.04)
+
+Role Variables
+--------------
+
+`postgres1c_major_ver`: major version of the distribution to be installed
+`postgres1c_postgres_pw`: password for user 'postgres'
+`postgres1c_postgres_pw_path`: path to the (Ansible-encrypted) YAML file containing a password (see `molecule/default/secrets/`)
+
+Dependencies
+------------
+
+None
+
+Example Playbook
+----------------
+
+See `molecule/default/coverge.yaml` for an example.
+
+License
+-------
+
+BSD
+
+Author Information
+------------------
+
+Danilkin Danila (MIPT) and Alexander Gorelyshev
+
+Genlab, LLC
+
+corvus-migratorius@proton.me

roles/postgres1c/defaults/main.yml

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+---

roles/postgres1c/files/postgres1c_backup.service

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+[Unit]
+Description=Backup 1C script
+Documentation=https://github.com/corvus-migratorius/genlab-ansible
+
+[Service]
+User=postgres
+Group=postgres
+Type=oneshot
+ExecStart=/bin/bash /opt/postgres1c_backup/backup.sh

roles/postgres1c/handlers/main.yml

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+---
+# handlers file for oneget

roles/postgres1c/meta/main.yml

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+---
+galaxy_info:
+  role_name: postgres1c
+  namespace: genlab
+  author: Danila Danilkin
+  description: Install PostgreSQL (1C version) as a system service
+  platforms:
+    - name: "Ubuntu"
+      versions: [ "jammy" ]
+  company: Genlab, LLC
+  license: BSD
+  min_ansible_version: "2.1"
+  galaxy_tags: []
+dependencies: []

roles/postgres1c/molecule/default/converge.yml

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+---
+- name: Converge
+  hosts: all
+  roles:
+    - role: genlab.common.postgres1c
+      postgres1c_version: 15
+      postgres1c_postgres_pw_path: "secrets/postgresql.yaml"
+      postgres1c_backup_timer: "Sat *-*-* 02:00:00"
+      postgres1c_backup_compression: "5"
+      # backup enabled by default at /var/backups/postgres1c/backup_<db_name>.dump

roles/postgres1c/molecule/default/molecule.yml

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+---
+dependency:
+  name: galaxy
+driver:
+  name: docker
+platforms:
+  - name: ubuntu
+    image: geerlingguy/docker-${MOLECULE_DISTRO:-ubuntu2204}-ansible:latest
+    pre_build_image: true
+    command: ${MOLECULE_DOCKER_COMMAND:-""}
+    volumes:
+      - /sys/fs/cgroup:/sys/fs/cgroup:rw
+    cgroupns_mode: host
+    privileged: true
+provisioner:
+  name: ansible
+verifier:
+  name: ansible
+lint: |
+  set -e
+  yamllint .
+  ansible-lint .

roles/postgres1c/molecule/default/secrets/postgresql.yaml

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+---
+postgres1c_postgres_pw: 12345

roles/postgres1c/molecule/default/verify.yml

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+---
+- name: Verify
+  hosts: all
+  gather_facts: false
+  tasks:
+    - name: "Include default role vars"
+      ansible.builtin.include_vars:
+        dir: "{{ lookup('env', 'MOLECULE_PROJECT_DIRECTORY') }}/defaults/"
+        extensions: [ 'yml' ]
+
+    - name: "Get 'postgres' user password"
+      tags: [postgres1c]
+      ansible.builtin.include_vars:
+        file: "secrets/postgresql.yaml"
+
+    - name: "Check that PostgreSQL server responds to the 'postgres' user credentials"
+      register: postgres1c__verify_db_version
+      community.postgresql.postgresql_info:
+        login_host: localhost
+        login_user: postgres
+        login_password: "{{ postgres1c_postgres_pw }}"
+        filter: "version"
+
+    - name: "Verify that correct PostgreSQL version is installed"
+      ansible.builtin.assert:
+        that: postgres1c__verify_db_version.version.major == postgres1c_major_ver
+        success_msg: >
+          Detected expected PostgreSQL version
+          '{{ postgres1c__verify_db_version.version.major }}'
+          ({{ postgres1c__verify_db_version.version }})"
+        fail_msg: >
+          Expected PostgreSQL version '{{ postgres1c_major_ver }}';
+          Actual '{{ postgres1c__verify_db_version.version.major }}'
+          ({{ postgres1c__verify_db_version.version.major }})"
+
+    - name: Start service postgrespro-1c (i.e. do nothing and throw fail if it start)
+      ansible.builtin.service:
+        name: "postgrespro-1c-{{ postgres1c_version }}"
+        state: started
+      register: start_postgrespro1c
+      failed_when: start_postgrespro1c.changed
+
+    - name: Create a new database with name "test"
+      tags: [postgres1c]
+      become: true
+      become_user: postgres
+      community.postgresql.postgresql_db:
+        name: test
+        comment: "test-db"
+        login_unix_socket: "/tmp"
+
+    - name: Test backup without cron
+      tags: [postgres1c]
+      become: true
+      become_user: postgres
+      ansible.builtin.command: /opt/postgres1c_backup/backup.sh
+      args:
+        creates: /var/backups/postgres1c/backup_test.tar

roles/postgres1c/tasks/backup.yaml

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+- name: "Create opt script directory and backup directory"
+  ansible.builtin.file:
+    path: "{{ item }}"
+    state: directory
+    owner: postgres
+    group: postgres
+    mode: "0770"
+  loop:
+    - "/var/backups/postgres1c"
+    - "/opt/postgres1c_backup"
+
+- name: "Copy backup script"
+  ansible.builtin.template:
+    src: "backup.sh.j2"
+    dest: "/opt/postgres1c_backup/backup.sh"
+    owner: postgres
+    group: postgres
+    mode: "0770"
+
+- name: "Copy backup service"
+  ansible.builtin.copy:
+    src: "postgres1c_backup.service"
+    dest: "/etc/systemd/system/"
+    owner: root
+    group: root
+    mode: "0770"
+
+- name: "Copy backup timer"
+  ansible.builtin.template:
+    src: "postgres1c_backup.timer.j2"
+    dest: "/etc/systemd/system/postgres1c_backup.timer"
+    owner: root
+    group: root
+    mode: "0770"
+
+- name: "Start backup timer"
+  ansible.builtin.systemd_service:
+    name: "postgres1c_backup.timer"
+    state: started
+    enabled: true

roles/postgres1c/tasks/main.yml

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+---
+- name: "Ensure ACL is installed"
+  tags: [postgres1c]
+  ansible.builtin.apt:
+    name: acl
+    state: present
+    update_cache: true
+    cache_valid_time: 3600
+
+- name: "Install PostgreSQL distribution for 1C"
+  tags: [postgres1c]
+  block:
+    - name: "Сheck if already installed"
+      tags: [postgres1c]
+      check_mode: true
+      ansible.builtin.package:
+        name: "postgrespro-1c-{{ postgres1c_version }}-contrib"
+        state: present
+
+  rescue:
+    - name: "Download the offical postgrespro1c installation script"
+      tags: [postgres1c]
+      ansible.builtin.get_url:
+        url: "https://repo.postgrespro.ru/1c/1c-{{ postgres1c_version }}/keys/pgpro-repo-add.sh"
+        dest: "/root/pgpro-repo-add.sh"
+        mode: '0755'
+
+    - name: "Add repos using the installation script"
+      tags: [postgres1c]
+      changed_when: false
+      ansible.builtin.command:
+        cmd: "/root/pgpro-repo-add.sh"
+
+    - name: "Install the 'postgrespro1c' package (and force apt update)"
+      tags: [postgres1c]
+      ansible.builtin.apt:
+        name: "postgrespro-1c-{{ postgres1c_version }}-contrib"
+        state: present
+        update_cache: true # we just added new repo, so we need to apt update
+
+    - name: "Ensure the 'ru_RU.UTF-8' locale exists"
+      tags: [postgres1c]
+      community.general.locale_gen:
+        name: ru_RU.UTF-8
+        state: present
+
+    - name: "Run initdb"
+      tags: [postgres1c]
+      changed_when: false
+      ansible.builtin.command:
+        cmd: "/opt/pgpro/1c-{{ postgres1c_version }}/bin/pg-setup initdb --locale ru_RU.UTF-8"
+
+    - name: "Enable postgrespro1c service"
+      tags: [postgres1c]
+      changed_when: false
+      ansible.builtin.command:
+        cmd: "/opt/pgpro/1c-{{ postgres1c_version }}/bin/pg-setup service enable"
+
+    - name: "Start postgrespro1c service"
+      tags: [postgres1c]
+      changed_when: false
+      ansible.builtin.command:
+        cmd: "/opt/pgpro/1c-{{ postgres1c_version }}/bin/pg-setup service start"
+
+- name: "Install psycopg2 (to connect to postgres)"
+  tags: [postgres1c]
+  ansible.builtin.package:
+    name: "python3-psycopg2"
+    state: present
+
+- name: "Get 'postgres' user password"
+  tags: [postgres1c]
+  ansible.builtin.include_vars:
+    file: "{{ postgres1c_postgres_pw_path }}"
+
+- name: "Set password for user 'postgres' via the Unix socket"
+  tags: [postgres1c]
+  become: true
+  become_user: postgres
+  community.postgresql.postgresql_user:
+    db: "postgres"
+    name: "postgres"
+    password: "{{ postgres1c_postgres_pw }}"
+    login_unix_socket: "/tmp"
+
+- name: "Create local postgres1c backup with systemd-timer"
+  tags: [postgres1c, postgres1c-backup]
+  ansible.builtin.include_tasks: backup.yaml

roles/postgres1c/templates/backup.sh.j2

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+#!/bin/bash
+
+set -eu -o pipefail
+
+readonly POSTGRES_VER={{ postgres1c_version }}
+readonly POSTGRES_COMPRESS={{ postgres1c_backup_compression }}
+
+echo "Starting 1C backup at $(date +F'%Y-%m-%d %H:%M:%S')"
+
+# db list array
+echo "getting a list of database names via psql ..."
+databases=($(/opt/pgpro/1c-${POSTGRES_VER}/bin/psql -t -A -c "SELECT datname FROM pg_database WHERE datname <> ALL ('{template0,template1,postgres}')"))
+echo "database names: ${databases[@]}"
+
+# get current seconds since shell invocation
+start_time=$SECONDS
+
+# iterate over the db list array
+for db in "${databases[@]}"; do
+  start_one_time=$SECONDS
+  echo "${db} - backup started"
+
+  # local backup command (don't forget to sync to a remote server by borg or some other tool)
+  # -Fc: "custom format" https://www.postgresql.org/docs/current/app-pgdump.html
+  # -Z: compression
+  /opt/pgpro/1c-${POSTGRES_VER}/bin/pg_dump -d ${db} -Fc -Z ${POSTGRES_COMPRESS} -f /var/backups/postgres1c/backup_${db}.dump
+
+  # notify about the db dump completion
+  echo "${db} - backup done"
+  total_one_time=$(($SECONDS - start_one_time))
+  echo "${db} - total time: ${total_one_time} sec"
+done
+
+total_time=$(($SECONDS - start_time))
+echo "job completed at $(date); total time elapsed: ${total_time} sec"

roles/postgres1c/templates/postgres1c_backup.timer.j2

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+[Unit]
+Description=Run backup 1C script.
+Documentation=https://github.com/corvus-migratorius/genlab-ansible
+
+[Timer]
+Unit=postgres1c_backup.service
+OnCalendar={{ postgres1c_backup_timer }}
+Persistent=true
+AccuracySec=1min
+
+[Install]
+WantedBy=timers.target