P-wordpress.sh

#!/usr/bin/env bash

### Install command check ####
if type "kubectl" > /dev/null 2>&1
then
    echo "kubectl was already installed"
else
    echo "kubectl was not found. Please install helm and re-run"
    exit 255
fi

if type "helm" > /dev/null 2>&1
then
    echo "helm was already installed"
else
    echo "helm was not found. Please install helm and re-run"
    exit 255
fi

NAMESPACE=wordpress

kubectl create namespace ${NAMESPACE}
mkdir ${NAMESPACE}
cd  ${NAMESPACE}

cat << EOF > wordpress-pvc.yaml
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: wp-pv-claim
  labels:
    app: wordpress
    tier: wordpress
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 20Gi
EOF
cat << EOF > wordpress.yaml
apiVersion: apps/v1 # for versions before 1.9.0 use apps/v1beta2
kind: Deployment
metadata:
  name: wordpress
  labels:
    app: wordpress
spec:
  selector:
    matchLabels:
      app: wordpress
      tier: frontend
  strategy:
    type: Recreate
  template:
    metadata:
      labels:
        app: wordpress
        tier: frontend
    spec:
      containers:
      - image: wordpress:4.8-apache
        name: wordpress
        env:
        - name: WORDPRESS_DB_HOST
          value: mysql-release
        - name: WORDPRESS_DB_PASSWORD
          valueFrom:
              secretKeyRef:
                name: mysql-release
                key: mysql-root-password
        ports:
        - containerPort: 80
          name: wordpress
        volumeMounts:
        - name: wordpress-persistent-storage
          mountPath: /var/www/html
      volumes:
      - name: wordpress-persistent-storage
        persistentVolumeClaim:
          claimName: wp-pv-claim
EOF
cat << EOF > wordpress-service.yaml
apiVersion: v1
kind: Service
metadata:
  labels:
    app: wordpress
  name: wordpress
spec:
  type: LoadBalancer
  ports:
    - port: 80
      targetPort: 80
      protocol: TCP
  selector:
    app: wordpress
EOF

helm install mysql-release bitnami/mysql --set volumePermissions.enabled=true -n ${NAMESPACE}
while [ "$(kubectl get pod -n ${NAMESPACE} mysql-release-0 --output="jsonpath={.status.containerStatuses[*].ready}" | cut -d' ' -f2)" != "true" ]; do
	echo "Deploying Stateful MySQL, Please wait...."
	sleep 30
done
kubectl create -f wordpress-pvc.yaml -n ${NAMESPACE}
kubectl get pvc,pv
kubectl create -f wordpress.yaml -n ${NAMESPACE}
kubectl get pod -l app=wordpress -n ${NAMESPACE}
kubectl create -f wordpress-service.yaml -n ${NAMESPACE}
kubectl label statefulset mysql-release  app=wordpress -n ${NAMESPACE}
kubectl get svc -l app=wordpress -n ${NAMESPACE}
kubectl get pod -n ${NAMESPACE}
cd ..

mv ${NAMESPACE} ${NAMESPACE}-`date "+%Y%m%d_%H%M%S"`
EXTERNALIP=`kubectl -n ${NAMESPACE} get service wordpress |awk '{print $4}' | tail -n 1`
#### LOCALIP #########
ip address show ens160 >/dev/null
retval=$?
if [ ${retval} -eq 0 ]; then
        LOCALIPADDR=`ip -f inet -o addr show ens160 |cut -d\  -f 7 | cut -d/ -f 1`
else
  ip address show ens192 >/dev/null
  retval2=$?
  if [ ${retval2} -eq 0 ]; then
        LOCALIPADDR=`ip -f inet -o addr show ens192 |cut -d\  -f 7 | cut -d/ -f 1`
  else
        LOCALIPADDR=`ip -f inet -o addr show eth0 |cut -d\  -f 7 | cut -d/ -f 1`
  fi
fi
echo ${LOCALIPADDR}

echo ""
echo "*************************************************************************************"
echo "Next Step"
echo "Confirm wordpress pod and mysql pod are running with kubectl get pod -A"
echo "Open http://${EXTERNALIP} from your local browser"
echo "or"
echo "kubectl port-forward --address 0.0.0.0 svc/wordpress 8081:80 -n  ${NAMESPACE}"
echo "http://${LOCALIPADDR}:8081"