---
kind: PersistentVolume
apiVersion: v1
metadata:
name: data-mysql-0
spec:
capacity:
storage: 5G
volumeMode: Filesystem
accessModes:
- ReadWriteMany
persistentVolumeReclaimPolicy: Retain
storageClassName: efs
claimRef:
namespace: default
name: data-mysql-0
csi:
driver: efs.csi.aws.com
volumeHandle: fs-030fec758ffe09bc9:/mysql/data0
---
kind: PersistentVolume
apiVersion: v1
metadata:
name: data-mysql-1
spec:
capacity:
storage: 5G
volumeMode: Filesystem
accessModes:
- ReadWriteMany
persistentVolumeReclaimPolicy: Retain
storageClassName: efs
claimRef:
namespace: default
name: data-mysql-1
csi:
driver: efs.csi.aws.com
volumeHandle: fs-030fec758ffe09bc9:/mysql/data1
---
kind: PersistentVolume
apiVersion: v1
metadata:
name: data-mysql-2
spec:
capacity:
storage: 5G
volumeMode: Filesystem
accessModes:
- ReadWriteMany
persistentVolumeReclaimPolicy: Retain
storageClassName: efs
claimRef:
namespace: default
name: data-mysql-2
csi:
driver: efs.csi.aws.com
volumeHandle: fs-030fec758ffe09bc9:/mysql/data2
---
apiVersion: v1
kind: ConfigMap
metadata:
name: mysql
labels:
app: mysql
app.kubernetes.io/name: mysql
data:
primary.cnf: |
[mysqld]
log_bin
sql-mode="STRICT_ALL_TABLES,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER"
max_connections=100
interactive_timeout=600
query_cache_type=1
query_cache_limit=256K
query_cache_min_res_unit=2k
query_cache_size = 32M
innodb_file_per_table=1
wait_timeout=600
expire_logs_days=7
innodb_temp_data_file_path=ibtmp1:12M:autoextend:max:10G
innodb_data_home_dir = /var/lib/mysql
innodb_log_group_home_dir = /var/lib/mysql
replica.cnf: |
[mysqld]
super-read-only
sql-mode="STRICT_ALL_TABLES,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER"
max_connections=100
interactive_timeout=600
query_cache_type=1
query_cache_limit=256K
query_cache_min_res_unit=2k
query_cache_size = 32M
innodb_file_per_table=1
wait_timeout=600
expire_logs_days=7
innodb_temp_data_file_path=ibtmp1:12M:autoextend:max:10G
innodb_data_home_dir = /var/lib/mysql
innodb_log_group_home_dir = /var/lib/mysql
---
apiVersion: v1
kind: Service
metadata:
name: mysql
labels:
app: mysql
spec:
ports:
- name: mysql
port: 3306
clusterIP: None
selector:
app: mysql
---
apiVersion: v1
kind: Service
metadata:
name: mysql-read
labels:
app: mysql
readonly: "true"
spec:
ports:
- name: mysql
port: 3306
selector:
app: mysql
---
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"
- |
[[ $HOSTNAME =~ -([0-9]+)$ ]] || exit 1
ordinal=${BASH_REMATCH[1]}
echo [mysqld] > /mnt/conf.d/server-id.cnf
echo server-id=$((100 + $ordinal)) >> /mnt/conf.d/server-id.cnf
if [[ $ordinal -eq 0 ]]; then
cp /mnt/config-map/primary.cnf /mnt/conf.d/
else
cp /mnt/config-map/replica.cnf /mnt/conf.d/
fi
volumeMounts:
- name: conf
mountPath: /mnt/conf.d
- name: config-map
mountPath: /mnt/config-map
- name: clone-mysql
image: gcr.io/google-samples/xtrabackup:1.0
command:
- bash
- "-c"
- |
[[ -d /var/lib/mysql/mysql ]] && exit 0
[[ `hostname` =~ -([0-9]+)$ ]] || exit 1
ordinal=${BASH_REMATCH[1]}
[[ $ordinal -eq 0 ]] && exit 0
ncat --recv-only mysql-$(($ordinal-1)).mysql 3307 | xbstream -x -C /var/lib/mysql
xtrabackup --prepare --target-dir=/var/lib/mysql
volumeMounts:
- name: conf
mountPath: /mnt/conf.d
- name: config-map
mountPath: /mnt/config-map
- name: data
mountPath: /var/lib/mysql
subPath: mysql
containers:
- name: mysql
image: mysql:5.7
env:
- name: MYSQL_ROOT_PASSWORD
value: "123456"
ports:
- name: mysql
containerPort: 3306
volumeMounts:
- name: data
mountPath: /var/lib/mysql
subPath: mysql
- name: conf
mountPath: /etc/mysql/conf.d
livenessProbe:
exec:
command: [ "mysqladmin", "--host=localhost","--user=root","--password=123456", "ping" ]
initialDelaySeconds: 30
periodSeconds: 10
timeoutSeconds: 5
readinessProbe:
exec:
command: [ "mysql", "--host=localhost","--user=root","--password=123456", "-e", "SELECT 1" ]
initialDelaySeconds: 5
periodSeconds: 2
timeoutSeconds: 1
- name: xtrabackup
image: gcr.io/google-samples/xtrabackup:1.0
ports:
- name: xtrabackup
containerPort: 3307
volumeMounts:
- name: data
mountPath: /var/lib/mysql
subPath: mysql
- name: conf
mountPath: /etc/mysql/conf.d
command:
- bash
- "-c"
- |
cd /var/lib/mysql
if [[ -f xtrabackup_slave_info && "x$(<xtrabackup_slave_info)" != "x" ]]; then
cat xtrabackup_slave_info | sed -E 's/;$//g' > change_master_to.sql.in
rm -f xtrabackup_slave_info xtrabackup_binlog_info
elif [[ -f xtrabackup_binlog_info ]]; then
[[ `cat xtrabackup_binlog_info` =~ ^(.*?)[[:space:]]+(.*?)$ ]] || 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
if [[ -f change_master_to.sql.in ]]; then
until mysql -h 127.0.0.1 --user=root --password=123456 -e "SELECT 1"; do sleep 1; done
mysql -h 127.0.0.1 --user=root --password=123456 \
-e "$(<change_master_to.sql.in), \
MASTER_HOST='mysql-0.mysql', \
MASTER_USER='root', \
MASTER_PASSWORD='123456', \
MASTER_CONNECT_RETRY=10; \
START SLAVE;" || exit 1
mv change_master_to.sql.in change_master_to.sql.orig
fi
exec ncat --listen --keep-open --send-only --max-conns=1 3307 -c \
"xtrabackup --backup --slave-info --stream=xbstream --host=127.0.0.1 --user=root --password=123456"
volumes:
- name: conf
emptyDir: { }
- name: config-map
configMap:
name: mysql
volumeClaimTemplates:
- metadata:
name: data
spec:
accessModes:
- ReadWriteMany
storageClassName: efs
resources:
requests:
storage: 5G