k8s部署-30-k8s与cicd持续集成、交付、部署的总流程（五）

node {
    env.BUILD_DIR = "/root/script/namespace"
    env.MODEL = "springboot"
    stage('Git') {  for display purposes
        git "https://gitee.com/xuexi100/yanshi.git"
    }
    stage('Maven') {
        sh "cd ${MODEL}; mvn clean; mvn package"
    }
    stage('build-image') {
        sh "sh root/script/build-springboot.sh"
    }
    stage('k8s-deploy'){
        sh "sh root/script/k8s-deploy.sh"
    }
}

1、k8s的yaml文件
  在这里我们直接复制过来，然后把里面的相关值，配置成变量，就可以多次使用了。
2、image的name
  这里的话，我们需要修改上个脚本，将镜像名字放到一个文件中，这样子我们是不是就可以获取到了。

# 在脚本文件的最后添加如下信息
# 获取镜像名字
echo ${Image_Name} > root/script/IMAGE_NAME

[root@node1 ~]# cd root/script/
[root@node1 script]# mkdir template
[root@node1 script]# cd template/
[root@node1 template]# 
#deploy
apiVersion: apps/v1
kind: Deployment
metadata:
  name: {{NAME}}
spec:
  selector:
    matchLabels:
      app: {{NAME}}
  replicas: 1
  template:
    metadata:
      labels:
        app: {{NAME}}
    spec:
      containers:
      - name: {{NAME}}
        image: {{IMAGE}}
        ports:
        - containerPort: 8080
---
#service
apiVersion: v1
kind: Service
metadata:
  name: {{NAME}}
spec:
  ports:
  - port: 80
    protocol: TCP
    targetPort: 8080
  selector:
    app: {{NAME}}
  type: ClusterIP


---
#ingress
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: {{NAME}}
spec:
  rules:
  - host: {{HOST}}
    http:
      paths:
      - path: 
        backend:
          serviceName: {{NAME}}
          servicePort: 80
[root@node1 template]#

node {
    env.BUILD_DIR = "/root/script/namespace"
    env.MODEL = "springboot"
    env.HOST = "springboot.yunweijia.com"
    stage('Git') {  for display purposes
        git "https://gitee.com/xuexi100/yanshi.git"
    }
    stage('Maven') {
        sh "cd ${MODEL}; mvn clean; mvn package"
    }
    stage('build-image') {
        sh "sh root/script/build-springboot.sh"
    }
    stage('k8s-deploy'){
        sh "sh root/script/k8s-deploy.sh"
    }
}

[root@node1 template]# cd ..
[root@node1 script]# pwd
/root/script
[root@node1 script]# 
[root@node1 script]# vim k8s-deploy.sh
#!/bin/bash
name=${JOB_NAME}
image=$(cat root/script/IMAGE_NAME)
host=${HOST}


# 输出变量
echo "deploying~~~"
echo "k8s_NAME: ${name}"
echo "k8s_IMAGE: ${image}"
echo "k8s_HOST: ${host}"


# 复制yaml文件过来
rm -f springboot.yaml
cp root/script/template/springboot.yaml .


# 替换变量
sed -i "s,{{NAME}},${name},g" springboot.yaml
sed -i "s,{{IMAGE}},${image},g" springboot.yaml
sed -i "s,{{HOST}},${host},g" springboot.yaml


# 使配置生效
kubectl apply -f springboot.yaml


# 查看yaml文件
cat springboot.yaml
[root@node1 script]# chmod +x k8s-deploy.sh

[root@node1 script]# kubectl get pod
NAME                                 READY   STATUS    RESTARTS   AGE
deploy-springboot-5cf68f977b-rrcc2   1/1     Running   0          4m10s
nginx-ds-q2pjt                       1/1     Running   16         10d
nginx-ds-zc5qt                       1/1     Running   21         16d
[root@node1 script]#

#!/bin/bash
name=${JOB_NAME}
image=$(cat /root/script/IMAGE_NAME)
host=${HOST}


# 输出变量
echo "deploying~~~"
echo "k8s_NAME: ${name}"
echo "k8s_IMAGE: ${image}"
echo "k8s_HOST: ${host}"


# 复制yaml文件过来
rm -f springboot.yaml
cp /root/script/template/springboot.yaml .


# 替换变量
sed -i "s,{{NAME}},${name},g" springboot.yaml
sed -i "s,{{IMAGE}},${image},g" springboot.yaml
sed -i "s,{{HOST}},${host},g" springboot.yaml


# 使配置生效
kubectl apply -f springboot.yaml


# 查看yaml文件
cat springboot.yaml


# 健康检查
sleep 5
success=0
count=100
IFS=","
while [ ${count} -gt 0 ]
do
    replicas=$(kubectl get deploy ${name} -o go-template='{{.status.replicas}},{{.status.updatedReplicas}},{{.status.readyReplicas}},{{.status.availableReplicas}}')
    echo "kubectl get deploy ${name} -o go-template='{{.status.replicas}},{{.status.updatedReplicas}},{{.status.readyReplicas}},{{.status.availableReplicas}}'"
    echo "replicas is ${replicas}"
    shuzu=(${replicas})
    if  [ "${shuzu[0]}" == "${shuzu[1]}" -a "${shuzu[1]}" == "${shuzu[2]}" -a "${shuzu[2]}" == "${shuzu[3]}" ];then
        echo "Health check Successful!"
        success=1
        break
    fi
    ((count--))
    sleep 2
done
if [ ${success} -ne 1 ];then
    echo "Health check Failed!"
fi