Remove slave statement when possible

See: https://jira.mariadb.org/browse/MDEV-18777

.travis.yml

@@ -13,7 +13,7 @@ env:
 
 before_install:
   - |
-    if ! git diff --name-only $TRAVIS_COMMIT_RANGE | grep -qvE '(.md)|(.pdf)'
+    if ! git diff --name-only HEAD^ | grep -vE '(.md)|(.pdf)'
     then
       echo "Only doc files were updated, not running the CI."
       exit

README.md

@@ -6,7 +6,7 @@ Install and configure MariaDB Server on Debian/Ubuntu.
 
 Optionally, this role also permits one to:
 
-- deploy a master/slave cluster;
+- deploy a master/replica cluster;
 - setup backups and rotation of the dumps.
 
 ## Requirements
@@ -175,9 +175,9 @@ See: <https://docs.ansible.com/ansible/latest/modules/mysql_user_module.html>
 ### Replication (optional)
 
 Replication is only enabled if `mariadb_replication_role` has a value (`master` or
-`slave`).
+`replica`).
 
-The replication setup on the slave use the GTID autopositioning
+The replication setup on the replica use the GTID autopositioning
 `master_use_gtid=slave_pos`. See:
 <https://mariadb.com/kb/en/library/change-master-to/#master_use_gtid>
 
@@ -185,11 +185,11 @@ For the moment, we use an `SQL` command but in ansible 2.10, we should be able
 to use the
 [`mysql_replication`](https://docs.ansible.com/ansible/latest/modules/mysql_replication_module.html)
 module (see
-[`tasks/replication_slave.yml`](./tasks/replication_slave.yml#L09-L33) and
+[`tasks/replication_replica.yml`](./tasks/replication_replica.yml#L09-L33) and
 <https://github.com/ansible/ansible/pull/62648>).
 
 ```yaml
-mariadb_replication_role: "" # master|slave
+mariadb_replication_role: "" # master|replica
 mariadb_replication_master_ip: ""
 mariadb_server_id: "1"
 mariadb_max_binlog_size: "100M"

defaults/main.yml

@@ -86,7 +86,7 @@ mariadb_users: []
 
 # Replication
 # replication is only enabled if mariadb_replication_role has values
-mariadb_replication_role: "" # master|slave
+mariadb_replication_role: "" # master|replica
 mariadb_replication_master_ip: ""
 mariadb_max_binlog_size: "100M"
 mariadb_binlog_format: "MIXED"

tasks/main.yml

@@ -9,23 +9,23 @@
   include_tasks: databases.yml
   when:
     - mariadb_databases is defined
-    - mariadb_replication_role != "slave"
+    - mariadb_replication_role != "replica"
 
 - name: include task users.yml
   include_tasks: users.yml
   when:
     - mariadb_users is defined
-    - mariadb_replication_role != "slave"
+    - mariadb_replication_role != "replica"
 
 - name: include task replication_master.yml
   include_tasks: replication_master.yml
   when: mariadb_replication_role == "master"
 
-- name: include task replication_slave.yml
-  include_tasks: replication_slave.yml
+- name: include task replication_replica.yml
+  include_tasks: replication_replica.yml
   when:
     - not ansible_check_mode
-    - mariadb_replication_role == "slave"
+    - mariadb_replication_role == "replica"
 
 - name: include task backup.yml
   include_tasks: backup.yml

tasks/replication_replica.yml

@@ -1,25 +1,25 @@
 ---
-- name: Check slave replication status
+- name: Check replica replication status
   mysql_replication:
     mode: getslave
     login_unix_socket: "{{ mariadb_unix_socket }}"
-  register: slave
+  register: replica
   no_log: true
 
 # For the moment, we have to use a sql command.
 # In ansible 2.10, we should be able to use mysql_replication module.
 # See https://github.com/ansible/ansible/pull/62648 (and below)
-- name: Configure replication on the slave
+- name: Configure replication on the replica
   command: |
     /usr/bin/mariadb -e "CHANGE MASTER TO master_host='{{ mariadb_replication_master_ip }}',
     master_user='{{ item.name }}', master_password='{{ item.password }}', master_use_gtid=slave_pos"
   with_items: "{{ mariadb_replication_user }}"
   when:
-    - not slave.Is_Slave
+    - not replica.Is_Slave
   no_log: true
 
 # # Following (not tested) should work on ansible 2.10
-# - name: Configure replication on the slave
+# - name: Configure replication on the replica
 #   mysql_replication:
 #     mode: changemaster
 #     master_host: "{{ mariadb_replication_master_ip }}"
@@ -29,26 +29,26 @@
 #     login_unix_socket: "{{ mariadb_unix_socket }}"
 #   with_items: "{{ mariadb_replication_user }}"
 #   when:
-#     - not slave.Is_Slave
+#     - not replica.Is_Slave
 #   no_log: true
 
-- name: Reset slave replication
+- name: Reset replica replication
   mysql_replication:
     mode: resetslave
     login_unix_socket: "{{ mariadb_unix_socket }}"
   when:
-    - not slave.Is_Slave
+    - not replica.Is_Slave
 
-- name: Check slave replication status (second time)
+- name: Check replica replication status (second time)
   mysql_replication:
     mode: getslave
     login_unix_socket: "{{ mariadb_unix_socket }}"
-  register: slave2
+  register: replica2
   no_log: true
 
-- name: Start slave replication
+- name: Start replica replication
   mysql_replication:
     mode: startslave
     login_unix_socket: "{{ mariadb_unix_socket }}"
   when:
-    - slave2.Slave_IO_Running == "No"
+    - replica2.Slave_IO_Running == "No"

templates/my.cnf.j2

@@ -25,7 +25,7 @@ log_bin
 expire_logs_days = {{ mariadb_expire_logs_days }}
 max_binlog_size = {{ mariadb_max_binlog_size }}
 binlog_format = {{mariadb_binlog_format}}
-# the following permits to simplify the process of moving a slave to a master
+# the following permits to simplify the process of moving a replica to a master
 # role by ensuring that replication is not started on master
 skip-slave-start
 
@@ -38,7 +38,7 @@ binlog_ignore_db = {{ db.name }}
 {% endfor %}
 {% endif %}
 
-{% if mariadb_replication_role == 'slave' %}
+{% if mariadb_replication_role == 'replica' %}
 read_only
 relay-log = relay-bin
 relay-log-index = relay-bin.index