jenkins+k8s的自动部署脚本

用了一个很简单的方式,只是把kubernetes的config文件给放到/home/jenkins/.kube/下面了，直接通过集群名字进行发布

需要注意harbor里面的账号具有删除镜像的权限,这里只保留30个版本的tag，之前的tag做删除处理

希望能帮到大家，也希望能给予指正，谢谢。

#!/bin/bash
CLUSTERLIST="k8s-app-service-prod-default-nodepool-396630973"
CLUSTERLIST="k8s"
NAMESPACE="prod"
SERVICE_NAME="app-service"

IMAGE_USERNAME="cicd_s_xxxx"
IMAGE_PASSWORD="xxxxxxxxx"
IMAGE_REGISTRY="harbor.xxxx.top"
IMAGE_PROJECT="xxxx"
IMAGE_REPOSITORY="${IMAGE_REGISTRY}/${IMAGE_PROJECT}/${SERVICE_NAME}"
IMAGE_TAG="${BUILD_NUMBER}"
IMAGE_OLDTAG=$((${IMAGE_TAG}-30))

BUILD () {
echo "[INFO]----------------------------------"
echo "[INFO] Pull the code to build the image"
echo "[INFO]----------------------------------"
docker build . -t ${IMAGE_REPOSITORY}:${IMAGE_TAG}
if [ $? -ne 0 ];then
   echo "[ERROR]+----------------------------------------------------+"
   echo "[ERROR]+     × × × ×  Build image failed  × × × ×    +"
   echo "[ERROR]+----------------------------------------------------+"
   exit 1
fi
docker logout ${IMAGE_REGISTRY}
docker login -u ${IMAGE_USERNAME} -p ${IMAGE_PASSWORD} ${IMAGE_REGISTRY}
echo "[INFO]------------------------------------------"
echo "[INFO] Push the built image to ${IMAGE_REGISTRY}"
echo "[INFO]------------------------------------------"
docker push ${IMAGE_REPOSITORY}:${IMAGE_TAG}
if [ $? -ne 0 ];then
   echo "[ERROR]+-------------------------------------------------+"
   echo "[ERROR]+    × × × ×  Push image failed  × × × ×   +"
   echo "[ERROR]+-------------------------------------------------+"
   exit 1
fi
}

CLEAN_IMAGE () {
echo "[INFO]-----------------------------------------------------"
echo "[INFO] Delete the image ${IMAGE_REPOSITORY}:${IMAGE_OLDTAG}"
echo "[INFO]-----------------------------------------------------"
docker rmi -f ${IMAGE_REPOSITORY}:${IMAGE_TAG}
if [ $? -ne 0 ];then
   echo "[ERROR]+--------------------------------------------------------------------------------------+"
   echo "[ERROR]+    × × × × Delete local image ${IMAGE_REPOSITORY}:${IMAGE_OLDTAG}  failed × × × ×   +"
   echo "[ERROR]+--------------------------------------------------------------------------------------+"
   exit 1
fi
if [ ${IMAGE_TAG} -gt 30 ]; then
   echo "[INFO] Delete remote image ${IMAGE_REPOSITORY}:${IMAGE_OLDTAG}."
   curl -u "$IMAGE_USERNAME:$IMAGE_PASSWORD" -X DELETE -H "Content-Type: application/json" -k "https://${IMAGE_REGISTRY}/api/repositories/${IMAGE_PROJECT}/${SERVICE_NAME}/tags/${IMAGE_OLDTAG}"
   if [ $? -ne 0 ];then
   echo "[ERROR]+-------------------------------------------------------------------------------------------+"
   echo "[ERROR]+     × × × ×  Delete remote image ${IMAGE_REPOSITORY}:${IMAGE_OLDTAG} failed  × × × ×     +"
   echo "[ERROR]+-------------------------------------------------------------------------------------------+"
   exit 1
  fi
elif [ ${IMAGE_TAG} -lt 30 ]; then
   echo "[INFO] ${IMAGE_TAG} less than 30"
else
   echo "[INFO] ${IMAGE_TAG} equal 30"
fi
}

DEPLOY () {
echo "[INFO]---------------------------------------------------------"
echo "[INFO] Deploy with the ${IMAGE_REPOSITORY}:${IMAGE_TAG}        "
echo "[INFO]---------------------------------------------------------"
for CLUSTER  in `echo "${CLUSTERLIST}"|awk -F, 'BEGIN{OFS=" "}{$1=$1;printf("%s",$0);}'`; do
  echo "[INFO] Remotely update ${SERVICE_NAME} service image to ${IMAGE_TAG} tag"
  echo "[INFO] cluser:${CLUSTER} namespace:${NAMESPACE} service:${SERVICE_NAME} tag:${IMAGE_TAG} start"
  kubectl --context ${CLUSTER} set image deployment/${SERVICE_NAME} ${SERVICE_NAME}=${IMAGE_REPOSITORY}:${IMAGE_TAG} --namespace=${NAMESPACE}
  kubectl --context ${CLUSTER} rollout status deployment ${SERVICE_NAME} --namespace=${NAMESPACE}
  if [ $? -ne 0 ];then
    echo "[ERROR]+---------------------------------------------+"
    echo "[ERROR]+     × × × × Deploy failed × × × ×    +"
    echo "[ERROR]+---------------------------------------------+"
    exit 1
  else
    sleep 10s
    echo "[INFO]kubectl --context ${CLUSTER} get pod,service,ingress,deployment  --namespace=${NAMESPACE}"
    kubectl --context ${CLUSTER} get pod,service,ingress,deployment  --namespace=${NAMESPACE}
    echo "[INFO] cluser:${CLUSTER} namespace:${NAMESPACE} service:${SERVICE_NAME} tag:${IMAGE_TAG}  done"
    echo "[INFO]+------------------------------------------------------+"
    echo "[INFO]+     √ √ √ √  Deploy Successfully  √ √ √ √     +"
    echo "[INFO]+------------------------------------------------------+"
  fi
done
}

BUILD
CLEAN_IMAGE
DEPLOY