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custom Ansible Playbook to deploy PostgerSql or PostgreSql BDR + Pgbackrest + Pgbouncer
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| # Usage | |
| # host supply IP | |
| # -t(tags) run specific tasks ie. db=master, dbslave=slave1/2, promote=update slave to master, remove= remove host | |
| # ansible-playbook pg.yml -e "host=192.169.99.2 -t db ##Build Master | |
| # ansible-playbook pg.yml -e "host=192.168.99.3" -t dbslave ##Build Slave | |
| # ansible-playbook pg.yml -e "host=192.168.99.3" -t promote ##Promoe slave to master | |
| # ansible-playbook pg.yml -e "host=192.168.99.2" -t remove ##Remove node from cluster | |
| # ansible-playbook /var/lib/pgsql/pg.yml -e "host=192.168.99.4" -s -t db --user=user1 --ask-sudo-pass ##Ubuntu | |
| # Created Bimal Patel | |
| --- | |
| - hosts: "{{ host }}" | |
| gather_facts: yes | |
| vars: | |
| mIP: 192.169.99.2 ###Provide Master IP | |
| s1IP: 192.168.99.3 ###Provide Slave IP | |
| s2IP: 192.168.99.4 ###Provide Slave2 IP | |
| pg: postgresql | |
| pgmjv: 9 #### Postgers Major Version | |
| pgmnv: 6 #### Postgres Minor Version | |
| git_user: XXXX | |
| git_pass: XXXX | |
| pg_connection: "100" | |
| pgdata: /mount/pg/postgres/ ####Postgers install Data directory | |
| xlogs: /mount/logs/pg_xlog/ ####Postgers WAL directory | |
| pgbouncer_conn: "50" ####Pgbouncer support Not included yet | |
| gitcheckout: /usr/local/pg_monitoring/ | |
| tasks: | |
| ############## | |
| #Postgres Install | |
| ############### | |
| - name: Add repository epl | |
| tags: | |
| - db | |
| - dbslave | |
| - bdr | |
| - repo | |
| yum_repository: | |
| name: epel | |
| description: EPEL YUM repo | |
| baseurl: https://download.fedoraproject.org/pub/epel/$releasever/$basearch/ | |
| when: ansible_distribution == 'CentOS' or ansible_distribution == 'Red Hat Enterprise Linux' | |
| - name: Add repository postgres ####Edit below yum URL for OS & Version or use private artifactory is exists | |
| tags: | |
| - db | |
| - dbslave | |
| - bdr | |
| - repo | |
| yum_repository: | |
| yum: name=https://download.postgresql.org/pub/repos/yum/9.6/redhat/rhel-7-x86_64/pgdg-centos96-9.6-3.noarch.rpm state=present | |
| # name: postgres96 | |
| # description: Postgresql9.6 | |
| # gpgcheck: 0 | |
| # enabled: 1 | |
| # baseurl: https://artifactory.private.com/artifactory/postgresql-yum/{{pgmjv}}.{{pgmnv}}/redhat/rhel-7.2-x86_64 | |
| when: ansible_distribution == 'CentOS' or ansible_distribution == 'Red Hat Enterprise Linux' | |
| - name: Add apt-repository for postgres | |
| tags: | |
| - db | |
| - dbslave | |
| - bdr | |
| - repo | |
| become: root | |
| become: yes | |
| apt_repository: | |
| repo: 'deb https://apt.postgresql.org/pub/repos/apt/ xenial-pgdg main' | |
| state: present | |
| when: ansible_distribution == 'Debian' or ansible_distribution == 'Ubuntu' | |
| - name: Install BDR postgres repo | |
| tags: | |
| - db | |
| - dbslave | |
| - bdr | |
| - repo | |
| yum: name=http://packages.2ndquadrant.com/postgresql-bdr94-2ndquadrant/yum-repo-rpms/postgresql-bdr94-2ndquadrant-redhat-latest.noarch.rpm state=present | |
| - yum: pkg={{item}} state=installed | |
| tags: | |
| - bdr | |
| with_items: | |
| - mdadm.x86_64 | |
| - postgresql-bdr94-server | |
| - postgresql-bdr94-bdr | |
| - postgresql-bdr94-contrib | |
| - postgresql-bdr94-libs | |
| - postgresql-bdr94-plpython | |
| when: ansible_distribution == 'CentOS' or ansible_distribution == 'Red Hat Enterprise Linux' | |
| - name: "Install: CentOS = {{ansible_distribution}} install packages" | |
| tags: | |
| - db | |
| - dbslave | |
| - postgres | |
| - repo | |
| become_user: root | |
| become: yes | |
| action: > | |
| {{ansible_pkg_mgr}} name={{item}} state=present | |
| with_items: | |
| - git | |
| - "{{pg}}{{pgmjv}}{{pgmnv}}-server" | |
| - "{{pg}}{{pgmjv}}{{pgmnv}}-contrib" | |
| - "{{pg}}{{pgmjv}}{{pgmnv}}-libs" | |
| - postgis23_* | |
| - pgbackrest | |
| - pgbouncer | |
| - python-psycopg2 #Postgres module library | |
| - nagios-plugins | |
| - nagios-plugins-nrpe | |
| when: ansible_distribution == 'CentOS' or ansible_distribution == 'Red Hat Enterprise Linux' | |
| - name: "Install: Ubuntu = {{ansible_distribution}} install packages" | |
| tags: | |
| - db | |
| - dbslave | |
| - postgres | |
| - repo | |
| become_user: root | |
| become: yes | |
| action: > | |
| {{ansible_pkg_mgr}} name={{item}} allow_unauthenticated=yes state=present | |
| with_items: | |
| - git | |
| - python-apt | |
| - python-pycurl | |
| - locales | |
| - "{{pg}}-{{pgmjv}}.{{pgmnv}}" | |
| - "{{pg}}-{{pgmjv}}.{{pgmnv}}-postgis-2.3" | |
| - pgbackrest | |
| - pgbouncer | |
| - libdbd-pg-perl | |
| - libio-socket-ssl-perl | |
| - libxml-libxml-perl | |
| - python-psycopg2 #Postgres module library | |
| - nagios-nrpe-server | |
| - nagios-nrpe-plugin | |
| when: ansible_distribution == 'Debian' or ansible_distribution == 'Ubuntu' | |
| - name: Create directories | |
| tags: | |
| - db | |
| - dbslave | |
| - directory | |
| become: yes | |
| become_user: root | |
| file: | |
| path: "{{item.line}}" | |
| state: directory | |
| owner: postgres | |
| group: postgres | |
| mode: "{{item.mode}}" | |
| with_items: | |
| - { line: "{{pgdata}}", mode: '0700'} | |
| - { line: /mount/pg-backup, mode: '0700'} | |
| - { line: /mount/pg-backup/pgbackrest, mode: '0700'} | |
| - { line: /mount/pg-backup/backup, mode: '0700'} | |
| - { line: "{{gitcheckout}}", mode: '0755'} | |
| - { line: "{{xlogs}}", mode: '0700'} | |
| - { line: /var/log/markers, mode: '0755'} | |
| - name: Clone git pg_monitoring reop | |
| tags: | |
| - db | |
| - dbslave | |
| - git | |
| become: yes | |
| become_user: postgres | |
| git: | |
| repo: https://{{git_user}}:{{git_pass}}@git.github.com/<user>/<path>.git | |
| accept_hostkey: yes | |
| dest: "{{gitcheckout}}" | |
| version: master | |
| update: yes | |
| force: yes | |
| - name: set user password | |
| tags: | |
| - db | |
| - dbslave | |
| - psswd | |
| become: yes | |
| become_user: root | |
| user: | |
| name: postgres | |
| password: pgpass | |
| - name: setup ssh-key for user | |
| tags: | |
| - db | |
| - dbslave | |
| - sshkey | |
| user: | |
| name: postgres | |
| generate_ssh_key: yes | |
| ssh_key_bits: 2048 | |
| ssh_key_file: .ssh/id_rsa | |
| - name: fetch local postgres public key | |
| tags: | |
| - db | |
| - dbslave | |
| - sshkey | |
| become: yes | |
| become_user: postgres | |
| shell: cat ~/.ssh/id_rsa.pub | |
| register: ssh_keys | |
| - name: List my SSH public keys | |
| debug: msg="{{ ssh_keys.stdout }}" | |
| - name: deploy keys on all servers ####Need to work on providing remote IP to copy key over for now doing it manually | |
| tags: | |
| - db | |
| - dbslave | |
| - sshkey | |
| authorized_key: user=postgres key="{{ item[0] }}" | |
| authorized_key: user=postgres key="{{item}}" | |
| with_items: "{{ ssh_keys.stdout }}" | |
| ############## | |
| #Setup DB | |
| ############## | |
| - name: initdb DB {{ansible_distribution}} | |
| tags: | |
| - db | |
| - dbslave | |
| - initdb | |
| shell : /usr/pgsql-9.6/bin/initdb -E UTF8 -D "{{pgdata}}" | |
| become: yes | |
| become_user: postgres | |
| ignore_errors: yes | |
| args: | |
| creates: "{{pgdata}}PG_VERSION" | |
| when: ansible_distribution == 'CentOS' or ansible_distribution == 'Red Hat Enterprise Linux' | |
| - name: mv pgdata and create link {{ansible_distribution}} | |
| tags: | |
| - db | |
| - dbslave | |
| - initdb | |
| shell : mv /var/lib/postgresql/9.6/main/* "{{pgdata}}"; rm -rf /var/lib/postgresql/9.6/main | |
| become: yes | |
| become_user: postgres | |
| ignore_errors: yes | |
| args: | |
| creates: "{{pgdata}}PG_VERSION" | |
| when: ansible_distribution == 'Debian' or ansible_distribution == 'Ubuntu' | |
| - name: link "{{pgdata}}" to /var/lib/pgsql/9.6 centOS = "{{ansible_distribution}}" | |
| tags: | |
| - db | |
| - dbslave | |
| - initdb | |
| file: | |
| src: "{{pgdata}}" | |
| dest: /var/lib/pgsql/9.6/data | |
| owner: postgres | |
| group: postgres | |
| state: link | |
| force: yes | |
| when: ansible_distribution == 'CentOS' or ansible_distribution == 'Red Hat Enterprise Linux' | |
| notify: restart_postgresql | |
| - name: link "{{pgdata}}" to /var/lib/postgresql/9.6/main Ubuntu = "{{ansible_distribution}}" | |
| tags: | |
| - db | |
| - dbslave | |
| - initdb | |
| file: | |
| src: "{{pgdata}}" | |
| dest: /var/lib/postgresql/9.6/main | |
| owner: postgres | |
| group: postgres | |
| state: link | |
| when: ansible_distribution == 'Debian' or ansible_distribution == 'Ubuntu' | |
| notify: restart_postgresql | |
| # - name: run handler #### Working on flushing handler to restart DB at this point | |
| # tags: | |
| # - db | |
| # - dbslave | |
| # - initdb | |
| # meta: flush_handlers | |
| - name: start postgresql-9.6 | |
| tags: | |
| - db | |
| - dbslave | |
| - restartdb | |
| service: name=postgresql state=started | |
| when: ansible_distribution == 'Debian' or ansible_distribution == 'Ubuntu' | |
| - name: start postgresql-9.6 | |
| tags: | |
| - db | |
| - dbslave | |
| - restartdb | |
| service: name=postgresql-9.6 state=started | |
| when: ansible_distribution == 'CentOS' or ansible_distribution == 'Red Hat Enterprise Linux' | |
| - name: Configure /etc/../postgresql.conf | |
| tags: | |
| - db | |
| - dbslave | |
| - pgconf | |
| notify: restart_postgresql | |
| lineinfile: | |
| dest: /etc/postgresql/9.6/main/postgresql.conf | |
| regexp: "^{{ item.regexp }}" | |
| line: "{{ item.line}}" | |
| with_items: | |
| - { regexp: "^#?listen_addresses =", line: "listen_addresses = '*'" } | |
| # - { regexp: "^#?max_connections = ", line: "max_connections = {{ pg_connection }}" } | |
| - { regexp: "^#?wal_level = ", line: "wal_level = hot_standby" } | |
| - { regexp: "^#?archive_mode =", line: "archive_mode = on" } | |
| - { regexp: "^#?archive_command =", line: "archive_command = '/bin/pgbackrest --stanza=db archive-push %p'" } | |
| - { regexp: "^#?wal_keep_segments =", line: "wal_keep_segments = 100" } | |
| - { regexp: "^#?max_wal_senders =", line: "max_wal_senders = 6" } | |
| - { regexp: "^#?max_replication_slots =", line: "max_replication_slots = 6" } | |
| - { regexp: "^#?hot_standby =", line: "hot_standby = on" } | |
| - { regexp: "^#?log_filename =", line: "log_filename = 'postgresql-%a-%d.log'" } | |
| - { regexp: "^#?log_line_prefix =", line: "log_line_prefix = '%m [%p]: [%l-1] user=%u,db=%d,%r,%h,app=%a,transaction_id=%x '" } | |
| - { regexp: "^#?log_connections =", line: "log_connections = on" } | |
| - { regexp: "^#?log_disconnections =", line: "log_disconnections = on" } | |
| - { regexp: "^#?log_duration =", line: "log_duration = on" } | |
| - { regexp: "^#?log_lock_waits =", line: "log_lock_waits = on" } | |
| - { regexp: "^#?log_statement =", line: "log_statement = 'ddl'" } | |
| - { regexp: "^#?log_min_duration_statement =", line: "log_min_duration_statement = 3600" } | |
| when: ansible_distribution == 'Debian' or ansible_distribution == 'Ubuntu' | |
| notify: restart_postgresql | |
| - name: Configure "{{ pgdata }}pstgresql.conf" | |
| tags: | |
| - db | |
| - dbslave | |
| - pgconf | |
| notify: restart_postgresql | |
| lineinfile: | |
| dest: "{{ pgdata }}postgresql.conf" | |
| regexp: "^{{ item.regexp }}" | |
| line: "{{ item.line}}" | |
| with_items: | |
| - { regexp: "^#?listen_addresses =", line: "listen_addresses = '*'" } | |
| # - { regexp: "^#?max_connections = ", line: "max_connections = {{ pg_connection }}" } | |
| - { regexp: "^#?wal_level = ", line: "wal_level = hot_standby" } | |
| - { regexp: "^#?archive_mode =", line: "archive_mode = on" } | |
| - { regexp: "^#?archive_command =", line: "archive_command = '/bin/pgbackrest --stanza=db archive-push %p'" } | |
| - { regexp: "^#?wal_keep_segments =", line: "wal_keep_segments = 100" } | |
| - { regexp: "^#?max_wal_senders =", line: "max_wal_senders = 6" } | |
| - { regexp: "^#?max_replication_slots =", line: "max_replication_slots = 6" } | |
| - { regexp: "^#?hot_standby =", line: "hot_standby = on" } | |
| - { regexp: "^#?log_filename =", line: "log_filename = 'postgresql-%a-%d.log'" } | |
| - { regexp: "^#?log_line_prefix =", line: "log_line_prefix = '%m [%p]: [%l-1] user=%u,db=%d,%r,%h,app=%a,transaction_id=%x '" } | |
| - { regexp: "^#?log_connections =", line: "log_connections = on" } | |
| - { regexp: "^#?log_disconnections =", line: "log_disconnections = on" } | |
| - { regexp: "^#?log_duration =", line: "log_duration = on" } | |
| - { regexp: "^#?log_lock_waits =", line: "log_lock_waits = on" } | |
| - { regexp: "^#?log_statement =", line: "log_statement = 'ddl'" } | |
| - { regexp: "^#?log_min_duration_statement =", line: "log_min_duration_statement = 3600" } | |
| when: ansible_distribution == 'CentOS' or ansible_distribution == 'Red Hat Enterprise Linux' | |
| notify: restart_postgresql | |
| - name: Add access to the replication user in /etc/..pg_hba.conf | |
| tags: | |
| - db | |
| - dbslave | |
| - hbaconf | |
| notify: restart_postgresql | |
| become_user: postgres | |
| lineinfile: | |
| dest=/etc/postgresql/9.6/main/pg_hba.conf | |
| line="{{ item }}" | |
| with_items: | |
| - local all monitoring trust # allow monitoring | |
| - host all monitoring 127.0.0.1/32 trust | |
| - host all monitoring {{mIP}}/32 md5 | |
| - host all monitoring {{s1IP}}/0 md5 # | |
| - host replication replicator {{mIP}}/32 trust # Node0 | |
| - host replication replicator {{s1IP}}/32 trust # Node1 | |
| - host replication replicator {{s2IP}}/32 trust # Node2 | |
| - host all user1 192.168.99.0/20 md5 | |
| when: ansible_distribution == 'Debian' or ansible_distribution == 'Ubuntu' | |
| notify: restart_postgresql | |
| - name: Add access to the replication user in "{{pgdata}}pg_hba.conf" | |
| tags: | |
| - db | |
| - dbslave | |
| - hbaconf | |
| notify: restart_postgresql | |
| become_user: postgres | |
| lineinfile: | |
| dest="{{pgdata}}pg_hba.conf" | |
| line="{{ item }}" | |
| with_items: | |
| - local all monitoring trust # allow monitoring | |
| - host all monitoring 127.0.0.1/32 trust | |
| - host all monitoring {{mIP}}/32 md5 | |
| - host all monitoring {{s1IP}}/0 md5 # | |
| - host replication replicator {{mIP}}/32 trust # Node0 | |
| - host replication replicator {{s1IP}}/32 trust # Node1 | |
| - host replication replicator {{s2IP}}/32 trust # Node2 | |
| - host all user1 192.168.99.0/20 md5 | |
| when: ansible_distribution == 'CentOS' or ansible_distribution == 'Red Hat Enterprise Linux' | |
| notify: restart_postgresql | |
| - name: set pg password | |
| tags: | |
| - db | |
| - pguser | |
| become: yes | |
| become_user: postgres | |
| postgresql_user: | |
| db: postgres | |
| name: "{{ item.pg_user }}" | |
| password: "{{ item.pg_password }}" | |
| role_attr_flags: "{{ item.role }}" | |
| encrypted: yes | |
| with_items: | |
| - { pg_user: "postgres", pg_password: "md5bff41c6b9ff2a244f651dc5738282db5", role: "" } ###md5 is set to postgres must update | |
| - { pg_user: "replicator", pg_password: "md5bff41c6b9ff2a244f651dc5738282db5", role: "replication" } | |
| - { pg_user: "user1", pg_password: "md5bff41c6b9ff2a244f651dc5738282db5", role: "" } | |
| - { pg_user: "monitoring", pg_password: "md5bff41c6b9ff2a244f651dc5738282db5", role: "" } | |
| - name: touch .pgpass | |
| tags: | |
| - db | |
| - dbslave | |
| - pgpass | |
| become: yes | |
| become_user: postgres | |
| file: path=~/.pgpass owner=postgres group=postgres mode=0600 state=touch | |
| - name: set .pgpass content | |
| tags: | |
| - db | |
| - dbslave | |
| become_user: postgres | |
| lineinfile: | |
| dest=~/.pgpass | |
| line="{{item}}" | |
| with_items: | |
| - '#hostname:port:database:username:password' | |
| - '*:*:*:postgres:md5bff41c6b9ff2a244f651dc5738282db5' ###Md5 set to postgres must udpate | |
| - '*:*:*:monitoring:md5bff41c6b9ff2a244f651dc5738282db5' | |
| - name: Create databases | |
| tags: | |
| - db | |
| - createdb | |
| become: yes | |
| become_user: postgres | |
| postgresql_db: | |
| name: "{{ item }}" | |
| with_items: | |
| - db1 | |
| - db2 | |
| - name: Setup PostGIS in DB1 & DB2 | |
| tags: | |
| - db | |
| - postgis | |
| become: yes | |
| become_user: postgres | |
| postgresql_ext: | |
| name: "{{ item.ext }}" | |
| db: "{{ item.dbs }}" | |
| with_items: | |
| - { ext: "postgis", dbs: "db1" } | |
| - { ext: "postgis_topology", dbs: "db1" } | |
| - { ext: "postgis_tiger_geocoder", dbs: "db1" } | |
| - { ext: "plr", dbs: "db1" } | |
| - { ext: "pgcrypto", dbs: "db1" } | |
| - { ext: "plpgsql", dbs: "db1" } | |
| - { ext: "uuid-ossp", dbs: "db1" } | |
| - { ext: "pgrouting", dbs: "db1" } | |
| - { ext: "hstore", dbs: "db1" } | |
| - { ext: "fuzzystmatch", dbs: "db1"} | |
| - { ext: "postgis", dbs: "db1" } | |
| - { ext: "postgis_topology", dbs: "db2" } | |
| - { ext: "postgis_tiger_geocoder", dbs: "db2" } | |
| - { ext: "plr", dbs: "db2" } | |
| - { ext: "pgcrypto", dbs: "db2" } | |
| - { ext: "plpgsql", dbs: "db2" } | |
| - { ext: "uuid-ossp", dbs: "db2" } | |
| - { ext: "pgrouting", dbs: "db2" } | |
| - { ext: "hstore", dbs: "db2" } | |
| - { ext: "fuzzystmatch", dbs: "db2" } | |
| ############## | |
| #setup slaves | |
| ############## | |
| - name: Stopping slave DB postgresql-9.6 Ubuntu = {{ansible_distribution}} | |
| tags: | |
| - dbslave | |
| service: name=postgresql state=stopped | |
| when: ansible_distribution == 'Debian' or ansible_distribution == 'Ubuntu' | |
| - name: Stopping slave DB postgresql-9.6 CentOS = {{ansible_distribution}} | |
| tags: | |
| - dbslave | |
| service: name=postgresql-9.6 state=stopped | |
| when: ansible_distribution == 'CentOS' or ansible_distribution == 'Red Hat Enterprise Linux' | |
| - name: Slave clean up old data directory | |
| tags: | |
| - dbslave | |
| become: yes | |
| become_user: postgres | |
| file: | |
| path: "{{pgdata}}" | |
| state: absent | |
| - name: re-create data directory | |
| tags: | |
| - dbslave | |
| file: | |
| path: "{{pgdata}}" | |
| owner: postgres | |
| group: postgres | |
| mode: 0700 | |
| state: directory | |
| - name: drop repliction slot on {{mIP}} | |
| tags: | |
| - dbslave | |
| - dropslot | |
| become: yes | |
| become_user: postgres | |
| command: psql -c "select pg_drop_replication_slot('"{{ansible_hostname}}"');" | |
| delegate_to: "{{mIP}}" ##delegate_to requires ssh from plybook host to mIP as user running playbook | |
| ignore_errors: True | |
| - name: create replication slot | |
| tags: | |
| - dbslave | |
| - createslot | |
| become: yes | |
| become_user: postgres | |
| command: psql -c "select pg_create_physical_replication_slot('"{{ansible_hostname}}"');" | |
| delegate_to: "{{mIP}}" | |
| - name: Slave initialize slave postgresql cluster | |
| tags: | |
| - dbslave | |
| - init_slave | |
| become: yes | |
| become_user: postgres | |
| command: pg_basebackup -Xs -P -R -v -U replicator -h "{{mIP}}" -D "{{pgdata}}" -S {{ansible_hostname}} | |
| - name: udpate recovery.conf | |
| tags: | |
| - dbslave | |
| - recoveryconf | |
| become: yes | |
| become_user: postgres | |
| lineinfile: | |
| dest="{{pgdata}}recovery.conf" | |
| line="{{item}}" | |
| with_items: | |
| - trigger_file = '/tmp/touch_to_promote_to_me_master' | |
| - recovery_target_timeline = 'latest' | |
| - "#recovery_min_apply_delay = '6h'" | |
| notify: restart_postgresql | |
| ############## | |
| #Promote Slave to Master | |
| ############## | |
| - name: step1 Promoting slave "{{host}}" to Master (shutdown master) "{{mIP}}" CentoOS = "{{ansible_distribution}}" | |
| tags: | |
| - promote | |
| command: systemctl stop postgresql-9.6 | |
| delegate_to: "{{mIP}}" | |
| register: pg_status | |
| when: ansible_distribution == 'CentOS' or ansible_distribution == 'Red Hat Enterprise Linux' | |
| - name: step1 Promoting slave "{{host}}" to Master (shutdown master) "{{mIP}}" CentOS = "{{ansible_distribution}}" | |
| tags: | |
| - promote | |
| command: service postgresql stop | |
| delegate_to: "{{mIP}}" | |
| register: pg_status | |
| when: ansible_distribution == 'Debian' or ansible_distribution == 'Ubuntu' | |
| - name: step2 Promoting slave "{{host}}" to Master via touch | |
| tags: | |
| - promote | |
| become: yes | |
| become_user: postgres | |
| file: path=/tmp/touch_to_promote_to_me_master state=touch | |
| - name: step3 move remaining slaves "{{s2IP}}" to new Master "{{host}}" | |
| tags: | |
| - promote | |
| become: yes | |
| become_user: postgres | |
| lineinfile: | |
| dest="{{pgdata}}recovery.conf" | |
| regexp="{{item.regexp}}" | |
| line="{{item.line}}" | |
| with_items: | |
| - { regexp: "#?{{mIP}}", line: "primary_conninfo = 'user=replication host={{host}} port=5432 sslmode=prefer sslcompression=1 krbsrvname=postgres'" } | |
| delegate_to: "{{s2IP}}" | |
| notify: restart_postgresql | |
| ignore_errors: True | |
| ############## | |
| #Remove node from cluster | |
| ############## | |
| - name: Verify the "{{host}}" is not master | |
| tags: | |
| - remove | |
| become: yes | |
| become_user: postgres | |
| command: psql -Upostgres -Atc "select pg_is_in_recovery();" | |
| register: result | |
| - name: Step2 Shutdown db on "{{host}}" CentOS = "{{ansible_distribution}}" | |
| tags: | |
| - remove | |
| command: systemctl stop postgresql-9.6 | |
| when: result.stdout == "t" and (ansible_distribution == 'CentOS' or ansible_distribution == 'Red Hat Enterprise Linux') | |
| - name: Step2 Shutdown db on "{{host}}" CentOS = "{{ansible_distribution}}" | |
| tags: | |
| - remove | |
| command: service postgresql stop | |
| when: result.stdout == "t" and (ansible_distribution == 'Debian' or ansible_distribution == 'Ubuntu') | |
| - name: Step1 Remove replication slot "{{host}}" from "{{mIP}}" node | |
| tags: | |
| - remove | |
| become: yes | |
| become_user: postgres | |
| command: psql -c "select pg_drop_replication_slot('{{ansible_hostname}}');" | |
| delegate_to: "{{mIP}}" | |
| when: result.stdout == "t" | |
| ############## | |
| #PGBACKREST BACKUP | |
| ############## | |
| - name: update pgbackrest | |
| tags: | |
| - db | |
| - dbslave | |
| - pgbackrest | |
| ini_file: | |
| path: /etc/pgbackrest.conf | |
| section: "{{item.sec}}" | |
| option: "{{item.line}}" | |
| value: "{{item.value}}" | |
| no_extra_spaces: true | |
| mode: 0664 | |
| group: postgres | |
| with_items: | |
| - { line: "backup-standby", sec: "global", value: "y" } | |
| - { line: "process-max", sec: "global", value: "3"} | |
| - { line: "repo-path",sec: "global", value: "/mount/pg-backup/pgbackrest/" } | |
| - { line: "retention-full", sec: "global", value: "1"} | |
| - { line: "stop-auto", sec: "global", value: "y"} | |
| - { line: "archive-check", sec: "global", value: "y"} | |
| - { line: "#thread-timeout", sec: "global", value: "300"} | |
| - { line: "db-timeout", sec: "global", value: "600"} | |
| - { line: "protocol-timeout", sec: "global", value: "800"} | |
| - { line: "#db-host", sec: "mydb", value: "{{ mIP }}"} | |
| - { line: "db-path", sec: "mydb", value: "{{ pgdata }}"} | |
| - { line: "#db1-user", sec: "mydb", value: "postgres" } | |
| - { line: "#db2-host", sec: "mydb", value: "{{ s1IP }}"} | |
| - { line: "#db2-path", sec: "mydb", value: "{{ pgdata }}"} | |
| - { line: "#db2-user", sec: "mydb", value: "postgres"} | |
| - { line: "#db-port", sec: "mydb", value: "5432"} | |
| - { line: "#Uncomment dbrest& update it as db only for restoringDB from remote host and run below pgbackrest command" ,sec: "dbrestore", value: "####"} | |
| - { line: "#pgbackrest --stanza=mydb --db-path=/mount/pg-backup/postgres_restore restore" , sec: "dbrestore", value: "##Run this command"} | |
| - { line: "#db-path ##Path to be Restored DB", sec: "dbrestore", value: "//mount/pg-backup/postgres_restore"} | |
| - { line: "#[mydb]", sec: "dbrestore", value: "####"} | |
| - { line: "#backup-host ##IP where the backup are held", sec: "dbrestore", value: "192.168.99.2"} | |
| - name: check if db path exists | |
| tags: | |
| - db | |
| - stanza | |
| - pgbackrest | |
| stat: path=/mount/pg-backup/pgbackrest/backup/db/ | |
| register: db_present | |
| - name: Create Pgbackrest Stanza | |
| tags: | |
| - db | |
| - stanza | |
| - pgbackrest | |
| become: yes | |
| become_user: postgres | |
| command: pgbackrest --stanza=mydb stanza-create | |
| when: db_present.stat.exists == false | |
| ignore_errors: true | |
| ############## | |
| # pgbouncer | |
| ############## | |
| ############## | |
| #Setup cron jobs for monitoring and backup | |
| ############## | |
| - name: Add cron | |
| tags: | |
| - db | |
| - dbslave | |
| - cron | |
| cron: | |
| minute="{{item.minute}}" weekday="{{item.weekday}}" hour="{{item.hour}}" job="{{item.job}}" name={{item.name}} user="postgres" | |
| with_items: | |
| - {minute: "0,30", weekday: "*", hour: "*", job: "{{gitcheckout}}monitor_disk.sh >/dev/null 2>&1", name: "Disk monitoring"} | |
| - {minute: "0,30", weekday: "*", hour: "*", job: "{{gitcheckout}}monitor_load.sh >/dev/null 2>&1", name: "OS Load"} | |
| - {minute: "*/5", weekday: "*", hour: "*", job: "{{gitcheckout}}monitor_pg_status.sh >/dev/null 2>&1", name: "Postgres status"} | |
| # - {minute: "*/5", weekday: "*", hour: "*", job: "{{gitcheckout}}monitor_pgbouncer_status.sh >/dev/null 2>&1", name: "Pgbouncer status"} | |
| - {minute: "*/15", weekday: "*", hour: "*", job: "{{gitcheckout}}monitor_pg_conn.sh >/dev/null 2>&1", name: "Postgres connection"} | |
| - {minute: "*/15", weekday: "*", hour: "*", job: "{{gitcheckout}}monitor_pg_blocking.sh >/dev/null 2>&1", name: "Pg blocking"} | |
| - {minute: "*/10", weekday: "*", hour: "*", job: "{{gitcheckout}}monitor_pg_log.sh /var/log/postgresql/ /var/log/markers/marker_postgres_log.tail >/dev/null 2>&1", name: "postgres Log monitor"} | |
| # - {minute: "0,30", weekday: "*", hour: "*", job: "{{gitcheckout}}monitor_pgbackup_log.sh >/dev/null 2>&1", name: "monitor_pgbackup_log"} | |
| - {minute: "*/5", weekday: "*", hour: "*", job: "{{gitcheckout}}monitor_standby_lag.sh >/dev/null 2>&1", name: "Repllication Lag"} | |
| - {minute: "00", weekday: "6", hour: "05", job: "pgbackrest --type=full --stanza=db backup", name: "pgbackrest full backup at 11PM PST"} | |
| - {minute: "00", weekday: "0-5", hour: "05", job: "pgbackrest --type=diff --stanza=db backup", name: "pgbackreset diff backup at 11PM PST"} | |
| # - {minute: "11", weekday: "*", hour: "*", job: "{{gitcheckout}}pg_backup.sh fsbackup", name: "PG Bckup FileLevel"} | |
| # - {minute: "09", weekday: "*", hour: "*", job: "{{gitcheckout}}pg_backup.sh dump", name: "PG Dump backup"} | |
| handlers: | |
| - name: restart_postgresql | |
| service: name=postgresql-9.6 state=restarted | |
| when: ansible_distribution == 'CentOS' or ansible_distribution == 'Red Hat Enterprise Linux' | |
| - name: restart_postgresql | |
| service: name=postgresql state=restarted | |
| when: ansible_distribution == 'Debian' or ansible_distribution == 'Ubuntu' | |
| # shell: pg_ctl -D $PGDATA restart | |
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