Added a replica mariadb for a dr environment

deploy/kubernetes/manifests/mariadb-replica.yaml

@@ -0,0 +1,214 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: wrestlingdev-mariadb
+  labels:
+    app: wrestlingdev
+spec:
+  ports:
+    - port: 3306
+  selector:
+    app: wrestlingdev
+    tier: mariadb
+  clusterIP: None
+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: wrestlingdev-mariadb-pv-claim
+  labels:
+    app: wrestlingdev
+spec:
+  # storageClassName: standard
+  accessModes:
+  - ReadWriteOnce
+  resources:
+    requests:
+      storage: 20Gi
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: wrestlingdev-mariadb
+  labels:
+    app: wrestlingdev
+spec:
+  selector:
+    matchLabels:
+      app: wrestlingdev
+  strategy:
+    type: Recreate
+  template:
+    metadata:
+      labels:
+        app: wrestlingdev
+        tier: mariadb
+      annotations:
+        prometheus.io/port: "9125"
+        prometheus.io/scrape: "true"
+    spec:
+      containers:
+      - image: mariadb:10.3
+        name: mariadb
+        env:
+        - name: MARIADB_ROOT_PASSWORD
+          valueFrom:
+           secretKeyRef:
+             name: wrestlingdev-secrets
+             key: dbpassword
+        ports:
+        - containerPort: 3306
+          name: mariadb
+        volumeMounts:
+        - name: wrestlingdev-mariadb-persistent-storage
+          mountPath: /var/lib/mysql
+        - name: mysettings-config-volume
+          mountPath: /etc/mysql/mariadb.conf.d
+        # resources:
+        #   limits:
+        #     memory: "512Mi"
+        #   requests:
+        #     memory: "256Mi"
+        #     cpu: "0.2"
+      - image: jcwimer/mariadb-rclone-backup-docker:10.3
+        name: mariadb-backup
+        env:
+        - name: DB_PASSWORD
+          valueFrom:
+           secretKeyRef:
+             name: wrestlingdev-secrets
+             key: dbpassword
+        - name: CRON_SCHEDULE
+          value: "*/5 * * * *"  # every 5 minutes
+        - name: DB_USERNAME
+          valueFrom:
+           secretKeyRef:
+             name: wrestlingdev-secrets
+             key: dbusername
+        - name: DB_HOST
+          value: "127.0.0.1"
+        - name: DAYS_TO_KEEP
+          value: "7"
+        - name: RCLONE_TYPE
+          valueFrom:
+           secretKeyRef:
+             name: wrestlingdev-secrets
+             key: rclone_type
+        - name: S3_ACCESS_ID
+          valueFrom:
+           secretKeyRef:
+             name: wrestlingdev-secrets
+             key: s3_access_id
+        - name: S3_ACCESS_KEY
+          valueFrom:
+           secretKeyRef:
+             name: wrestlingdev-secrets
+             key: s3_access_key
+        - name: S3_ENDPOINT
+          valueFrom:
+           secretKeyRef:
+             name: wrestlingdev-secrets
+             key: s3_endpoint
+        - name: S3_REGION
+          valueFrom:
+           secretKeyRef:
+             name: wrestlingdev-secrets
+             key: s3_region
+        - name: RCLONE_EXTRA_ARGS
+          valueFrom:
+           secretKeyRef:
+             name: wrestlingdev-secrets
+             key: rclone_extra_args
+        - name: RCLONE_PATH
+          valueFrom:
+           secretKeyRef:
+             name: wrestlingdev-secrets
+             key: rclone_path
+        volumeMounts:
+        - name: wrestlingdev-mariadb-persistent-storage
+          mountPath: /var/lib/mysql
+        # resources:
+        #   limits:
+        #     memory: "100Mi"
+        #   requests:
+        #     memory: "50Mi"
+        #     cpu: "0.1"
+      - image: prom/mysqld-exporter:v0.11.0
+        name: mariadb-exporter
+        ports:
+        - containerPort: 9125
+          name: "http"
+        args:
+        - --web.listen-address=0.0.0.0:9125
+        - --web.telemetry-path=/metrics
+        - --collect.heartbeat
+        - --collect.heartbeat.database=sys_operator
+        env:
+        - name: DB_PASSWORD
+          valueFrom:
+           secretKeyRef:
+             name: wrestlingdev-secrets
+             key: dbpassword
+        - name: DB_USERNAME
+          valueFrom:
+           secretKeyRef:
+             name: wrestlingdev-secrets
+             key: dbusername
+        - name: DB_HOST
+          value: "127.0.0.1:3306"
+        - name: DATA_SOURCE_NAME
+          value: $(DB_USERNAME):$(DB_PASSWORD)@($(DB_HOST))/
+        - name: DAYS_TO_KEEP
+          value: "7"
+        # resources:
+        #   limits:
+        #     memory: "128Mi"
+        #   requests:
+        #     memory: "32Mi"
+        #     cpu: "10m"
+        livenessProbe:
+          httpGet:
+            path: /metrics
+            port: 9125
+          initialDelaySeconds: 30
+          periodSeconds: 30
+          timeoutSeconds: 30
+      volumes:
+      - name: wrestlingdev-mariadb-persistent-storage
+        persistentVolumeClaim:
+          claimName: wrestlingdev-mariadb-pv-claim
+      - name: mysettings-config-volume
+        configMap:
+          name: mariadb-mysettings
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: mariadb-mysettings
+  labels:
+    kubernetes.io/cluster-service: "true"
+    addonmanager.kubernetes.io/mode: EnsureExists
+data:
+  70-mysettings.cnf: |
+    [mariadb]
+    # Slow log
+    slow_query_log=1
+    #slow_query_log_file=/var/log/mariadb/slow.log
+    slow_query_log_file=/var/lib/mysql/slow.log
+    long_query_time=0.2
+    # mysqltunner recommendations
+    tmp_table_size=32M
+    max_heap_table_size=32M
+    performance_schema=ON
+    innodb_log_file_size=32M
+    table_open_cache=4000
+    # replica settings
+    server_id=2                                # Default server_id, can be overridden for master/slave
+    log_bin=mysql-bin                          # Enable binary logging
+    binlog_format=ROW                          # Recommended for replication
+    log_slave_updates=ON                       # Ensure slaves log updates (useful for multi-source replication)
+    sync_binlog=1                              # Flush binary logs after each transaction for safety
+    read_only=0                                # Default, will be managed by the init script
+    expire_logs_days=7                         # Retain binary logs for 7 days
+    
+    # /etc/mysql/mariadb.conf.d/70-mysettings.cnf

deploy/kubernetes/manifests/mariadb-standalone.yaml

@@ -127,6 +127,8 @@ spec:
         volumeMounts:
         - name: wrestlingdev-mariadb-persistent-storage
           mountPath: /var/lib/mysql
+        - name: mysettings-config-volume
+          mountPath: /etc/mysql/mariadb.conf.d
         # resources:
         #   limits:
         #     memory: "100Mi"