diff --git a/StatefulSet/mysql-configmap.yaml b/StatefulSet/mysql-configmap.yaml deleted file mode 100644 index 43769248..00000000 --- a/StatefulSet/mysql-configmap.yaml +++ /dev/null @@ -1,17 +0,0 @@ -apiVersion: v1 -kind: ConfigMap -metadata: - name: mysql - labels: - app: mysql -data: - primary.cnf: | - # Apply this config only on the primary. - [mysqld] - log-bin - replica.cnf: | - # Apply this config only on replicas. - [mysqld] - super-read-only - - diff --git a/StatefulSet/mysql-services.yaml b/StatefulSet/mysql-services.yaml deleted file mode 100644 index 8e72897c..00000000 --- a/StatefulSet/mysql-services.yaml +++ /dev/null @@ -1,31 +0,0 @@ -# Headless service for stable DNS entries of StatefulSet members. -apiVersion: v1 -kind: Service -metadata: - name: mysql - labels: - app: mysql -spec: - ports: - - name: mysql - port: 3306 - clusterIP: None - selector: - app: mysql ---- -# Client service for connecting to any MySQL instance for reads. -# For writes, you must instead connect to the primary: mysql-0.mysql. -apiVersion: v1 -kind: Service -metadata: - name: mysql-read - labels: - app: mysql -spec: - ports: - - name: mysql - port: 3306 - selector: - app: mysql - - diff --git a/StatefulSet/mysql-statefulset.yaml b/StatefulSet/mysql-statefulset.yaml deleted file mode 100644 index 79ac7ade..00000000 --- a/StatefulSet/mysql-statefulset.yaml +++ /dev/null @@ -1,167 +0,0 @@ -apiVersion: apps/v1 -kind: StatefulSet -metadata: - name: mysql -spec: - selector: - matchLabels: - app: mysql - serviceName: mysql - replicas: 3 - template: - metadata: - labels: - app: mysql - spec: - initContainers: - - name: init-mysql - image: mysql:5.7 - command: - - bash - - "-c" - - | - set -ex - # Generate mysql server-id from pod ordinal index. - [[ `hostname` =~ -([0-9]+)$ ]] || exit 1 - ordinal=${BASH_REMATCH[1]} - echo [mysqld] > /mnt/conf.d/server-id.cnf - # Add an offset to avoid reserved server-id=0 value. - echo server-id=$((100 + $ordinal)) >> /mnt/conf.d/server-id.cnf - # Copy appropriate conf.d files from config-map to emptyDir. - if [[ $ordinal -eq 0 ]]; then - cp /mnt/config-map/primary.cnf /mnt/conf.d/ - else - cp /mnt/config-map/replica.cnf /mnt/conf.d/ - fi - volumeMounts: - - name: conf - mountPath: /mnt/conf.d - - name: config-map - mountPath: /mnt/config-map - - name: clone-mysql - image: gcr.io/google-samples/xtrabackup:1.0 - command: - - bash - - "-c" - - | - set -ex - # Skip the clone if data already exists. - [[ -d /var/lib/mysql/mysql ]] && exit 0 - # Skip the clone on primary (ordinal index 0). - [[ `hostname` =~ -([0-9]+)$ ]] || exit 1 - ordinal=${BASH_REMATCH[1]} - [[ $ordinal -eq 0 ]] && exit 0 - # Clone data from previous peer. - ncat --recv-only mysql-$(($ordinal-1)).mysql 3307 | xbstream -x -C /var/lib/mysql - # Prepare the backup. - xtrabackup --prepare --target-dir=/var/lib/mysql - volumeMounts: - - name: data - mountPath: /var/lib/mysql - subPath: mysql - - name: conf - mountPath: /etc/mysql/conf.d - containers: - - name: mysql - image: mysql:5.7 - env: - - name: MYSQL_ALLOW_EMPTY_PASSWORD - value: "1" - ports: - - name: mysql - containerPort: 3306 - volumeMounts: - - name: data - mountPath: /var/lib/mysql - subPath: mysql - - name: conf - mountPath: /etc/mysql/conf.d - resources: - requests: - cpu: 500m - memory: 1Gi - livenessProbe: - exec: - command: ["mysqladmin", "ping"] - initialDelaySeconds: 30 - periodSeconds: 10 - timeoutSeconds: 5 - readinessProbe: - exec: - # Check we can execute queries over TCP (skip-networking is off). - command: ["mysql", "-h", "127.0.0.1", "-e", "SELECT 1"] - initialDelaySeconds: 5 - periodSeconds: 2 - timeoutSeconds: 1 - - name: xtrabackup - image: gcr.io/google-samples/xtrabackup:1.0 - ports: - - name: xtrabackup - containerPort: 3307 - command: - - bash - - "-c" - - | - set -ex - cd /var/lib/mysql - - # Determine binlog position of cloned data, if any. - if [[ -f xtrabackup_slave_info && "x$( 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 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='${BASH_REMATCH[1]}',\ - MASTER_LOG_POS=${BASH_REMATCH[2]}" > change_master_to.sql.in - fi - - # Check if we need to complete a clone by starting replication. - if [[ -f change_master_to.sql.in ]]; then - echo "Waiting for mysqld to be ready (accepting connections)" - until mysql -h 127.0.0.1 -e "SELECT 1"; do sleep 1; done - - echo "Initializing replication from clone position" - mysql -h 127.0.0.1 \ - -e "$(