Jenkins-在Centos上配置自动化部署（Jenkins+Gitlab+Rancher）

环境：centos7

首先在服务器上安装好Jenkins和Gitlab和Rancher

Gitlab安装：https://www.cnblogs.com/1285026182YUAN/p/10726539.html

Jenkins安装：https://www.cnblogs.com/1285026182YUAN/p/11791171.html

Rancher安装：https://www.cnblogs.com/1285026182YUAN/p/11546743.html

打开Jenkins，地址：http://192.168.122.199:8078/

添加凭据

增加全局凭据

类型：SSH类型

username:自定义

Key:C:\Users\lihongyuan\.ssh\id_rsa（如何生成 SSH 密钥可在网上查到）

确定后，添加成功

创建一个新任务

项目配置General

配置源码管理

注意提前安装GitLab 插件。

Repository URL:GitLab中的项目地址

credentials:凭据

获取代码的分支此处以 master 为例

构建触发器

记下这个地址，配置到 GitLab中（当有分支有提交时，自动推送代码过来，自动构建）

GitLab 中的配置方式：https://www.cnblogs.com/1285026182YUAN/p/10726539.html

点击高级，生成密钥，密钥配置到 GitLab中（当有分支有提交时，自动推送代码过来，自动构建）

构建执行shell脚本。

需安装dotnet core 环境：https://www.cnblogs.com/1285026182YUAN/p/11833674.html

也可在服务器上 /var/lib/jenkins/workspace 目录下运行下面的语句。

Jenkins在shell脚本运行docker权限报错解决，参考：https://www.cnblogs.com/morang/p/9536622.html

Jenkins在执行shell脚本时可能会报类似如下的错误，是由于Jenkins没有docker权限

Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Post http://%2Fvar%2Frun%2Fdocker.sock/v1.38/containers/create?name=my-node-8: dial unix /var/run/docker.sock: connect: permission denied.

解决方法

将jenkins用户加入docker组
重启Jenkins服务

sudo gpasswd -a jenkins docker
systemctl restart jenkins

查看权限组

cat /etc/group

OK 配置完成，可重新构建测试。

Jenkins自动部署Rancher:

获取Rancher API调用的语句，填写在Execute Shell 中。如下：

Rancher API调用的语句，请查询：https://www.cnblogs.com/1285026182YUAN/p/11546743.html

具体如下命令如下：

#!/bin/bash
 
var=`date +%Y%m%d%H%M%S`
 
#发布
dotnet publish ProjNetCore2/ProjNetCore2.csproj -c Release -o ../publish/
#打镜像
docker build -t mestest.cn:/proj_netcore2:$var  publish/.
#tag
docker tag mestest.cn:/proj_netcore2:$var mestest.cn:/proj_netcore2:latest
#登录
docker login -p  -u admin mestest.cn:
#推送
docker push  mestest.cn:/proj_netcore2:$var
docker push  mestest.cn:/proj_netcore2:latest
 
curl -k -u "token-lgwv7:dvrkw5498mhlpczf8zn2sl99bbfgq69qhcfl2wblt4qtgsrhdh6fws" \
-X PUT \
-H 'Accept: application/json' \
-H 'Content-Type: application/json' \
-d '{
    "annotations": {
        "cattle.io/timestamp": "2019-11-21T00:58:54Z",
        "workload.cattle.io/state": "{\"bWVzdGVzdA==\":\"c-gqr2n:m-8e84afdc263f\"}"
    },
    "containers": [{
        "allowPrivilegeEscalation": false,
        "image": "mestest.cn:8085/proj_netcore2:'$var'",
        "imagePullPolicy": "IfNotPresent",
        "initContainer": false,
        "name": "mycoreweb",
        "ports": [{
            "containerPort": ,
            "dnsName": "mycoreweb-nodeport",
            "kind": "NodePort",
            "name": "8089tcp300051",
            "protocol": "TCP",
            "sourcePort": ,
            "type": "/v3/project/schemas/containerPort"
        }],
        "privileged": false,
        "readOnly": false,
        "resources": {
            "type": "/v3/project/schemas/resourceRequirements"
        },
        "restartCount": ,
        "runAsNonRoot": false,
        "stdin": true,
        "stdinOnce": false,
        "terminationMessagePath": "/dev/termination-log",
        "terminationMessagePolicy": "File",
        "tty": true,
        "type": "/v3/project/schemas/container"
    }],
    "created": "2019-11-13T05:21:50Z",
    "creatorId": null,
    "deploymentConfig": {
        "maxSurge": ,
        "maxUnavailable": ,
        "minReadySeconds": ,
        "progressDeadlineSeconds": ,
        "revisionHistoryLimit": ,
        "strategy": "RollingUpdate"
    },
    "deploymentStatus": {
        "availableReplicas": ,
        "conditions": [{
            "lastTransitionTime": "2019-11-20T12:05:09Z",
            "lastTransitionTimeTS": ,
            "lastUpdateTime": "2019-11-20T12:05:09Z",
            "lastUpdateTimeTS": ,
            "message": "Deployment has minimum availability.",
            "reason": "MinimumReplicasAvailable",
            "status": "True",
            "type": "Available"
        }, {
            "lastTransitionTime": "2019-11-21T00:43:28Z",
            "lastTransitionTimeTS": ,
            "lastUpdateTime": "2019-11-21T00:58:56Z",
            "lastUpdateTimeTS": ,
            "message": "ReplicaSet \"mycoreweb-74797bc87\" has successfully progressed.",
            "reason": "NewReplicaSetAvailable",
            "status": "True",
            "type": "Progressing"
        }],
        "observedGeneration": ,
        "readyReplicas": ,
        "replicas": ,
        "type": "/v3/project/schemas/deploymentStatus",
        "unavailableReplicas": ,
        "updatedReplicas":
    },
    "dnsConfig": {
        "type": "/v3/project/schemas/podDNSConfig"
    },
    "dnsPolicy": "ClusterFirst",
    "gids": [],
    "hostAliases": [],
    "hostIPC": false,
    "hostNetwork": false,
    "hostPID": false,
    "imagePullSecrets": [],
    "labels": {
        "workload.user.cattle.io/workloadselector": "deployment-default-mycoreweb"
    },
    "name": "mycoreweb",
    "namespaceId": "default",
    "nodeId": "",
    "ownerReferences": [],
    "paused": false,
    "projectId": "c-gqr2n:p-4zqh9",
    "publicEndpoints": [],
    "readinessGates": [],
    "restartPolicy": "Always",
    "scale": ,
    "schedulerName": "default-scheduler",
    "scheduling": {
        "node": {
            "nodeId": "c-gqr2n:m-8e84afdc263f"
        }
    },
    "selector": {
        "matchLabels": {
            "workload.user.cattle.io/workloadselector": "deployment-default-mycoreweb"
        },
        "type": "/v3/project/schemas/labelSelector"
    },
    "state": "active",
    "sysctls": [],
    "terminationGracePeriodSeconds": ,
    "transitioning": "no",
    "transitioningMessage": "",
    "uuid": "7ede4f06-05d5-11ea-b16e-000c296c6b53",
    "volumes": [],
    "workloadAnnotations": {
        "deployment.kubernetes.io/revision": "",
        "field.cattle.io/creatorId": "user-257tk"
    },
    "workloadLabels": {
        "cattle.io/creator": "norman",
        "workload.user.cattle.io/workloadselector": "deployment-default-mycoreweb"
    },
    "workloadMetrics": []
}' \
'https://192.168.122.199:8443/v3/project/c-gqr2n:p-4zqh9/workloads/deployment:default:mycoreweb'

保存。

当Jenkins重新构建时，会自动调用Rancher的API，使Rancher项目重新部署。