PMM-5885 upgrade postgres to 14

ansible/playbook/tasks/roles/initialization/tasks/main.yml

@@ -39,23 +39,12 @@
     path: /srv/backup
     state: directory
 
-- name: Wait until postgres socket is present before continuing
-  wait_for:
-    path: /var/run/postgresql/.s.PGSQL.5432
-
-- name: Get postgres encoding
-  postgresql_query:
-    db: pmm-managed
-    query: SHOW SERVER_ENCODING;
-  register: postgres_encoding
-  become: yes
-  become_user: postgres
-  become_method: su
-
-- debug:
-    var: postgres_encoding.query_result
-
-- name: Change encoding of pmm-managed database
+- name: Check if Postgres 11 exist
+  stat:
+    path: /srv/postgres
+  register: is_postgres_11
+
+- name: Upgrade Postgres database
   include_role:
-    name: postgres-ascii-to-utf8
-  when: "'SQL_ASCII' == postgres_encoding.query_result[0].server_encoding"
+    name: postgres
+  when: is_postgres_11.stat.exists

ansible/playbook/tasks/roles/postgres/tasks/main.yml

@@ -0,0 +1,145 @@
+---
+# Install Postgres
+- name: Create Postgres data dir
+  file:
+    path: "/srv/postgres14"
+    state: directory
+    owner: postgres
+    group: postgres
+
+- name: Add PostgreSQL YUM repository
+  yum_repository:
+    name: percona-ppg-14
+    description: PostgreSQL YUM repository - x86_64
+    baseurl: http://repo.percona.com/ppg-14/yum/release/7/RPMS/x86_64
+    gpgcheck: yes
+    enabled: yes
+    gpgkey: file:///etc/pki/rpm-gpg/PERCONA-PACKAGING-KEY
+
+- name: Add PostgreSQL YUM repository
+  yum_repository:
+    name: percona-ppg-11
+    description: PostgreSQL YUM repository - x86_64
+    baseurl: http://repo.percona.com/ppg-11/yum/release/7/RPMS/x86_64
+    gpgcheck: yes
+    enabled: yes
+    gpgkey: file:///etc/pki/rpm-gpg/PERCONA-PACKAGING-KEY
+
+# we need old postgres binary for upgrade process
+- name: Install Postgres
+  yum:
+    name:
+      - percona-postgresql14-server
+      - percona-postgresql14-contrib
+      - percona-postgresql14
+      - percona-postgresql11-server
+      - percona-postgresql11-contrib
+      - percona-postgresql11
+    state: installed
+  when: not ansible_check_mode
+
+
+- name: Create Postgres log file
+  file:
+    path: /srv/logs/postgresql14.log
+    state: touch
+    force: yes
+    group: postgres
+    owner: postgres
+    mode: 0644
+
+- name: Add the user 'postgres' to group 'pmm'
+  user:
+    name: postgres
+    groups: pmm
+    append: yes
+
+- name: Check if Postgres 11 exist
+  stat:
+    path: /srv/postgres
+  register: is_postgres_11
+
+- name: Upgrade postgres from 11 to 14
+  block:
+    - name: Create Postgres data cluster
+      command: /usr/pgsql-14/bin/initdb -D /srv/postgres14
+      become: yes
+      become_user: postgres
+      become_method: su
+
+    - name: Stop pmm-managed and postgres before changing encoding
+      supervisorctl:
+        name: "{{ item }}"
+        state: stopped
+      loop:
+        - pmm-managed
+        - postgresql
+
+    - name: Run Postgres database without supervisor
+      command: /usr/pgsql-11/bin/pg_ctl start -D /srv/postgres
+      become: yes
+      become_user: postgres
+      become_method: su
+
+    - name: Dump pmm-managed database
+      postgresql_db:
+        name: pmm-managed
+        state: dump
+        target: /tmp/pmm-managed-upgrade.sql
+
+    - name: Stop Postgres database without supervisor
+      command: /usr/pgsql-11/bin/pg_ctl stop -D /srv/postgres
+      become: yes
+      become_user: postgres
+      become_method: su
+
+    - name: Start Postgres 14 database without supervisor
+      command: /usr/pgsql-14/bin/pg_ctl stop -D /srv/postgres14
+      become: yes
+      become_user: postgres
+      become_method: su
+
+    - name: Create pmm-managed database
+      postgresql_db:
+        name: pmm-managed
+        state: present
+
+    - name: Restore pmm-managed database
+      postgresql_db:
+        name: pmm-managed
+        state: restore
+        target: /tmp/pmm-managed-upgrade.sql
+
+    - name: Stop Postgres 14 database without supervisor
+      command: /usr/pgsql-14/bin/pg_ctl stop -D /srv/postgres14
+      become: yes
+      become_user: postgres
+      become_method: su
+
+    - name: Remove old postgres packages
+      yum:
+        name:
+          - percona-postgresql11-server
+          - percona-postgresql11-contrib
+          - percona-postgresql11
+          - percona-postgresql11-libs
+        state: absent
+
+    - name: Delete old repo file
+      file:
+        state: absent
+        path: "/etc/yum.repos.d/percona-ppg-11.repo"
+
+    - name: Rename old Postgres directory
+      copy:
+        remote_src: true
+        src: /srv/postgres
+        dest: /srv/postgres11
+  when: is_postgres_11.stat.exists
+
+- name: Disable logging_collector
+  lineinfile:
+    path: /srv/postgres14/postgresql.conf
+    regexp: '^logging_collector'
+    line: 'logging_collector = off'
+  when: not ansible_check_mode

ansible/playbook/tasks/update.yml

@@ -50,6 +50,10 @@
       include_role:
         name: grafana
 
+    - name: Install postgres
+      include_role:
+        name: postgres
+
     # Start the services
     - name: Supervisord start        | Start supervisord service for AMI/OVF
       when: not is_docker