début creation rôle patroni

patroni/README.md

@@ -0,0 +1,4 @@
+# Patroni
+
+Installation and basic configuration of Patroni.
+

patroni/defaults/main.yml

@@ -0,0 +1,20 @@
+---
+
+# Install Patroni from backport Evolix
+patroni_backport: false
+
+# Define variable for Patroni
+
+cluster_name: "mycluster"
+patroni_restapi_listen: "127.0.0.1"
+patroni_port: "8008"
+postgresql_hosts_cluster: []
+postgresql_host: 127.0.0.1
+postgresql_version: ''
+postgresql_replication_user: 'repl'
+postgresql_superuser: 'admin'
+
+# Define variable for etcd
+etcd_hosts: []
+etcd_port: "2379"
+

patroni/meta/main.yml

@@ -0,0 +1,31 @@
+galaxy_info:
+  company: Evolix
+  description: Installation and basic configuration of Patroni
+
+  issue_tracker_url: https://gitea.evolix.org/evolix/ansible-roles/issues
+
+  license: GPLv2
+
+  min_ansible_version: "2.7"
+
+  platforms:
+    - name: Debian
+      versions:
+        - buster
+        - bullseye
+        - bookworm
+
+  galaxy_tags: []
+    # List tags for your role here, one per line. A tag is
+    # a keyword that describes and categorizes the role.
+    # Users find roles by searching for tags. Be sure to
+    # remove the '[]' above if you add tags to this list.
+    #
+    # NOTE: A tag is limited to a single word comprised of
+    # alphanumeric characters. Maximum 20 tags per role.
+
+dependencies: []
+  # List your role dependencies here, one per line.
+  # Be sure to remove the '[]' above if you add dependencies
+  # to this list.
+

patroni/tasks/backports.yml

@@ -0,0 +1,27 @@
+---
+
+- name: Add Evolix GPG key
+  ansible.builtin.copy:
+    src: pub_evolix.asc
+    dest: "{{ apt_keyring_dir }}/pub_evolix.asc"
+    force: yes
+    mode: "0644"
+    owner: root
+    group: root
+
+- name: Add Evolix backports repository
+  ansible.builtin.apt_repository:
+    repo: "deb [signed-by={{ apt_keyring_dir }}/pub_evolix.asc] http://pub.evolix.org/evolix {{ ansible_distribution_release }}-backports main"
+    filename: backports.list
+    state: present
+
+- name: Update APT cache
+  ansible.builtin.apt:
+    update_cache: yes
+
+- name: Add APT preference file
+  ansible.builtin.template:
+    src: patroni.pref.j2
+    dest: /etc/apt/preferences.d/patroni.pref
+    mode: "0644"
+

patroni/tasks/config.yml

@@ -0,0 +1,18 @@
+---
+
+- name: Create a password for PostgreSQL repl user
+  command: "apg -a 0 -m 16"
+  register: postgresql_replication_password 
+
+- name: Create a password for PostgreSQL superuser user
+  command: "apg -a 0 -m 16"
+  register: postgresql_superuser_password
+
+- name: Create Patroni config file
+  ansible.builtin.template:
+    src: patroni.conf.j2
+    dest: /etc/patroni/config-{{ cluster_name }}.yml
+    owner: root
+    group: root
+    mode: "0644"
+

patroni/tasks/main.yml

@@ -0,0 +1,6 @@
+---
+
+- ansible.builtin.import_tasks: packages.yml
+
+- ansible.builtin.import_tasks: backports.yml
+  when: patroni_backport: | bool

patroni/tasks/packages.yml

@@ -0,0 +1,8 @@
+---
+
+- name: Install patroni package
+  ansible.builtin.apt:
+    name:
+      - patroni
+    update_cache: yes
+

patroni/templates/patroni.conf.j2

@@ -0,0 +1,73 @@
+scope: {{ cluster_name }}
+name: {{ cluster_name }}
+
+restapi:
+    listen: {{ patroni_restapi_listen }}:{{ patroni_port }}
+    connect_address: {{ patroni_restapi_listen }}:{{ patroni_port }}
+
+etcd:
+    hosts:
+    - {{ etcd_hosts }}:{{ etcd_port }}
+    - {{ etcd_hosts }}:{{ etcd_port }}
+    - {{ etcd_hosts }}:{{ etcd_port }}
+
+bootstrap:
+    dcs:
+        ttl: 30
+        loop_wait: 10
+        retry_timeout: 10
+        maximum_lag_on_failover: 1048576
+        postgresql:
+            use_pg_rewind: true
+            use_slots: true
+            parameters:
+              wal_level: replica
+              hot_standby: "on"
+              wal_keep_segment: 8
+              max_wal_senders: 5
+              max_relication_slots: 5
+              checkpoint_timeout: 30
+
+    initdb:
+    - encoding: UTF8
+    - data-checksums
+
+    pg_hba:
+    - host replication repl 127.0.0.1/32 md5
+    - host replication repl {{ postgresql_hosts_cluster }}/0 md5
+    - host replication repl {{ postgresql_hosts_cluster }}/0 md5
+    - host replication repl {{ postgresql_hosts_cluster }}/0 md5
+    - host all all 0.0.0.0/0 md5
+
+   users:
+        {{ postgresql_superuser }}:
+            password: {{ postgresql_superuser_password }}
+            options:
+             - createrole
+             - createdb
+        {{ postgresql_replication_user }}:
+           password: {{ postgresql_replication_password }}
+           options:
+            - replication
+
+postgresql:
+    listen: {{ postgresql_host }}:{{ postgresql_port }}
+    connect_address: {{ postgresql_host }}:{{ postgresql_port }}
+    bin_dir: /usr/lib/postgresql/{{ postgresql_version }}/bin/
+    data_dir: /home/{{ cluster_name }}
+    pgpass: /tmp/{{ cluster_name }}-pgpass
+    authentication:
+        replication:
+            username: {{ postgresql_replication_user }}
+            password: {{ postgresql_replication_password }}
+        superuser:
+            username: {{ postgresql_superuser }}
+            password: {{ postgresql_superuser_password }}
+    parameters:
+        unix_socket_directories: '/tmp'
+
+tags:
+    nofailover: false
+    noloadbalance: false
+    clonefrom: false
+    nosync: false

patroni/templates/patroni.pref.j2

@@ -0,0 +1,3 @@
+Package: patroni 
+Pin: release a={{ ansible_distribution_release }}-backports
+Pin-Priority: 999