Replace master/slave with primary/secondary where possible

content/en/examples/application/mysql/mysql-statefulset.yaml

@@ -29,9 +29,9 @@ spec:
           echo server-id=$((100 + $ordinal)) >> /mnt/conf.d/server-id.cnf
           # Copy appropriate conf.d files from config-map to emptyDir.
           if [[ $ordinal -eq 0 ]]; then
-            cp /mnt/config-map/master.cnf /mnt/conf.d/
+            cp /mnt/config-map/primary.cnf /mnt/conf.d/
           else
-            cp /mnt/config-map/slave.cnf /mnt/conf.d/
+            cp /mnt/config-map/secondary.cnf /mnt/conf.d/
           fi
         volumeMounts:
         - name: conf
@@ -47,7 +47,7 @@ spec:
           set -ex
           # Skip the clone if data already exists.
           [[ -d /var/lib/mysql/mysql ]] && exit 0
-          # Skip the clone on master (ordinal index 0).
+          # Skip the clone on primary (ordinal index 0).
           [[ `hostname` =~ -([0-9]+)$ ]] || exit 1
           ordinal=${BASH_REMATCH[1]}
           [[ $ordinal -eq 0 ]] && exit 0
@@ -108,12 +108,12 @@ spec:
           # Determine binlog position of cloned data, if any.
           if [[ -f xtrabackup_slave_info && "x$(<xtrabackup_slave_info)" != "x" ]]; then
             # XtraBackup already generated a partial "CHANGE MASTER TO" query
-            # because we're cloning from an existing slave. (Need to remove the tailing semicolon!)
+            # because we're cloning from an existing secondary. (Need to remove the tailing semicolon!)
             cat xtrabackup_slave_info | sed -E 's/;$//g' > change_master_to.sql.in
             # Ignore xtrabackup_binlog_info in this case (it's useless).
             rm -f xtrabackup_slave_info xtrabackup_binlog_info
           elif [[ -f xtrabackup_binlog_info ]]; then
-            # We're cloning directly from master. Parse binlog position.
+            # We're cloning directly from primary. Parse binlog position.
             [[ `cat xtrabackup_binlog_info` =~ ^(.*?)[[:space:]]+(.*?)$ ]] || exit 1
             rm -f xtrabackup_binlog_info xtrabackup_slave_info
             echo "CHANGE MASTER TO MASTER_LOG_FILE='${BASH_REMATCH[1]}',\