首页 > 其他分享 >19. rs、deploy和Jenkins集成K8S实现CICD实战

19. rs、deploy和Jenkins集成K8S实现CICD实战

时间：2024-08-03 19:05:40浏览次数：8  
标签：oldboyedu master231 deploy 19 CICD apps xiuxian root

1.rs控制器

1.作用

可以实现Pod的副本控制。相比rc资源，其功能性更强且更加轻量级。

2.案例1-rs实现类似rc的功能

[root@master231 rs]# cat 01-rs-xiuxian-matchLabels.yaml 
apiVersion: apps/v1
kind: ReplicaSet
metadata:
  name: rs-xiuxian
spec:
  # 指定Pod的副本数量
  replicas: 3
  # 定义如何关联Pod
  selector:
    # 基于标签关联Pod
    matchLabels:
      apps: xiuxian
  # 定义Pod的模板
  template:
    metadata:
      labels:
        apps: xiuxian
        version: v1
    spec:
       containers:
       - name: c1
         image: registry.cn-hangzhou.aliyuncs.com/yinzhengjie-k8s/apps:v1
[root@master231 rs]#

3.案例2-rs实现优于rc的功能

	3.1 准备测试环境

[root@master231 ~]# kubectl run xiuxian01 --image=registry.cn-hangzhou.aliyuncs.com/yinzhengjie-k8s/apps:v1
pod/xiuxian01 created
[root@master231 ~]#
[root@master231 ~]# kubectl run xiuxian02 --image=registry.cn-hangzhou.aliyuncs.com/yinzhengjie-k8s/apps:v2
pod/xiuxian02 created
[root@master231 ~]#
[root@master231 ~]# kubectl run xiuxian03 --image=registry.cn-hangzhou.aliyuncs.com/yinzhengjie-k8s/apps:v3
pod/xiuxian03 created
[root@master231 ~]#
[root@master231 ~]#
[root@master231 ~]# kubectl label pod xiuxian01 apps=v1
pod/xiuxian01 labeled
[root@master231 ~]#
[root@master231 ~]# kubectl label pod xiuxian02 apps=v2
pod/xiuxian02 labeled
[root@master231 ~]#
[root@master231 ~]# kubectl label pod xiuxian03 apps=v3
pod/xiuxian03 labeled
[root@master231 ~]#
[root@master231 ~]# kubectl get pods --show-labels
NAME READY STATUS RESTARTS AGE LABELS
xiuxian01 1/1 Running 0 75s apps=v1,run=xiuxian01
xiuxian02 1/1 Running 0 69s apps=v2,run=xiuxian02
xiuxian03 1/1 Running 0 63s apps=v3,run=xiuxian03
[root@master231 ~]#
[root@master231 ~]# kubectl run xiuxian04 --image=registry.cn-hangzhou.aliyuncs.com/yinzhengjie-k8s/apps:v2
pod/xiuxian04 created
[root@master231 ~]#
[root@master231 ~]# kubectl label pod xiuxian04 apps=v4
pod/xiuxian04 labeled
[root@master231 ~]#
[root@master231 ~]# kubectl get pods --show-labels
NAME READY STATUS RESTARTS AGE LABELS
xiuxian01 1/1 Running 0 6m23s apps=v1,run=xiuxian01
xiuxian02 1/1 Running 0 6m17s apps=v2,run=xiuxian02
xiuxian03 1/1 Running 0 6m11s apps=v3,run=xiuxian03
xiuxian04 1/1 Running 0 28s apps=v4,run=xiuxian04
[root@master231 ~]#

		3.2 创建rs资源

[root@master231 rs]# cat 02-rs-xiuxian-matchExpressions.yaml
apiVersion: apps/v1
kind: ReplicaSet
metadata:
name: rs-xiuxian-matchexpressions
spec:

指定Pod的副本数量

replicas: 5

定义如何关联Pod

selector:
# 基于标签表达式关联Pod
matchExpressions:
# 代表的是标签的key
- key: apps
# 代表的是标签的value
values:
- v1
- v2
- v3
# 指定key和value之间的关系: In, NotIn, Exists and DoesNotExist
# In:
# key的值必须在value的列表之中。
# NotIn:
# 和In相反。
# Exists:
# 只要存在key即可，value任意，因此可以省略value字段。
# DoesNotExist:
# 不存在指定的key，和Exists相反，因此可以省略value字段。
operator: In

定义Pod的模板

template:
metadata:
labels:
apps: v1
school: oldboyedu
class: linux92
spec:
containers:
- name: c1
image: registry.cn-hangzhou.aliyuncs.com/yinzhengjie-k8s/apps:v1
[root@master231 rs]#
[root@master231 rs]# kubectl apply -f 02-rs-xiuxian-matchExpressions.yaml
replicaset.apps/rs-xiuxian-matchexpressions created
[root@master231 rs]#
[root@master231 rs]# kubectl get pods --show-labels
NAME READY STATUS RESTARTS AGE LABELS
rs-xiuxian-matchexpressions-6rgx2 1/1 Running 0 16s apps=v1,class=linux92,school=oldboyedu
rs-xiuxian-matchexpressions-md6jh 1/1 Running 0 16s apps=v1,class=linux92,school=oldboyedu
xiuxian01 1/1 Running 0 8m6s apps=v1,run=xiuxian01
xiuxian02 1/1 Running 0 8m apps=v2,run=xiuxian02
xiuxian03 1/1 Running 0 7m54s apps=v3,run=xiuxian03
xiuxian04 1/1 Running 0 2m11s apps=v4,run=xiuxian04
[root@master231 rs]#

  • deploy控制器
    1.作用
    用于部署服务，底层基于rs控制来控制Pod副本数量，并不会直接控制Pod。

相比于rc和rs而言， deploy支持声明式更新。

2.案例1-基于matchLabels匹配

[root@master231 deploy]# cat 01-deploy-xiuxian-matchLabels.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: deloy-xiuxian
spec:

指定Pod的副本数量

replicas: 3

定义如何关联Pod

selector:
# 基于标签关联Pod
matchLabels:
apps: xiuxian

定义Pod的模板

template:
metadata:
labels:
apps: xiuxian
version: v1
spec:
containers:
- name: c1
image: registry.cn-hangzhou.aliyuncs.com/yinzhengjie-k8s/apps:v2
[root@master231 deploy]#

2.案例2-基于matchLabels匹配

[root@master231 deploy]# cat 02-deloy-xiuxian-matchExpressions.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: deploy-xiuxian-matchexpressions
spec:

指定Pod的副本数量

replicas: 5

定义如何关联Pod

selector:
# 基于标签表达式关联Pod
matchExpressions:
# 代表的是标签的key
- key: apps
# 代表的是标签的value
values:
- v1
- v2
- v3
# 指定key和value之间的关系: In, NotIn, Exists and DoesNotExist
# In:
# key的值必须在value的列表之中。
# NotIn:
# 和In相反。
# Exists:
# 只要存在key即可，value任意，因此可以省略value字段。
# DoesNotExist:
# 不存在指定的key，和Exists相反，因此可以省略value字段。
operator: In

定义Pod的模板

template:
metadata:
labels:
apps: v1
school: oldboyedu
class: linux92
spec:
containers:
- name: c1
image: registry.cn-hangzhou.aliyuncs.com/yinzhengjie-k8s/apps:v1
[root@master231 deploy]#

3.测试案例

[root@master231 deploy]# kubectl get deploy,rs,pods
NAME READY UP-TO-DATE AVAILABLE AGE
deployment.apps/deloy-xiuxian 3/3 3 3 3m8s
deployment.apps/deploy-xiuxian-matchexpressions 5/5 5 5 14s

NAME DESIRED CURRENT READY AGE
replicaset.apps/deloy-xiuxian-8676cbd54f 3 3 3 3m8s
replicaset.apps/deploy-xiuxian-matchexpressions-5d6d946f5b 5 5 5 14s

NAME READY STATUS RESTARTS AGE
pod/deloy-xiuxian-8676cbd54f-7zc4j 1/1 Running 0 3m8s
pod/deloy-xiuxian-8676cbd54f-jwxbl 1/1 Running 0 3m8s
pod/deloy-xiuxian-8676cbd54f-pfpvk 1/1 Running 0 3m8s
pod/deploy-xiuxian-matchexpressions-5d6d946f5b-7dx2j 1/1 Running 0 14s
pod/deploy-xiuxian-matchexpressions-5d6d946f5b-88rxj 1/1 Running 0 14s
pod/deploy-xiuxian-matchexpressions-5d6d946f5b-dkscx 1/1 Running 0 14s
pod/deploy-xiuxian-matchexpressions-5d6d946f5b-kzkkt 1/1 Running 0 14s
pod/deploy-xiuxian-matchexpressions-5d6d946f5b-sfch6 1/1 Running 0 14s
[root@master231 deploy]#

4.deployments的Recreate升级策略

[root@master231 deploy]# cat 03-deploy-update-Recreate.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: deloy-xiuxian-update
spec:

升级策略

strategy:
# 指定升级的类型,"Recreate" or "RollingUpdate"
# Recreate:
# 代表的是删除所有旧的Pod，再去创建新的Pod，不推荐使用。
type: Recreate
replicas: 3
selector:
matchLabels:
apps: xiuxian
template:
metadata:
labels:
apps: xiuxian
version: v1
spec:
containers:
- name: c1
# image: registry.cn-hangzhou.aliyuncs.com/yinzhengjie-k8s/apps:v1
# image: registry.cn-hangzhou.aliyuncs.com/yinzhengjie-k8s/apps:v2
image: registry.cn-hangzhou.aliyuncs.com/yinzhengjie-k8s/apps:v3
# 指定镜像的拉取策略，有效值为: Always, Never, IfNotPresent
# Never:
# 如果本地有镜像则尝试启动。
# 如果本地没有镜像则不会去远程仓库拉取镜像。
# IfNotPresent:
# 如果本地有镜像则尝试启动。
# 如果本地没有镜像则去远程仓库拉取镜像。
# Always:
# 如果本地有镜像，则会将本地的镜像和远程仓库的摘要信息进行对比，若一致则直接使用本地缓存镜像，若不一致则重新拉取。
# 如果本地没有镜像，则直接从远程仓库拉取镜像。
#
# 默认策略会根据镜像的标签来定:
# 如果你的tag是"latest"，则默认策略为"Always";
# 若你的tag是非"latest"，则默认策略为"IfNotPresent"
imagePullPolicy: Always

apiVersion: v1
kind: Service
metadata:
name: xiuxian-svc-deploy
spec:
type: ClusterIP
clusterIP: 10.200.0.80
selector:
apps: xiuxian
ports:

  • port: 80
    targetPort: 80

[root@master231 deploy]#

5.deployments的RollingUpdate升级策略

[root@master231 deploy]# cat 03-deploy-update-Recreate.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: deloy-xiuxian-update
spec:

升级策略

strategy:
# 指定升级的类型,"Recreate" or "RollingUpdate"
# Recreate:
# 代表的是删除所有旧的Pod，再去创建新的Pod，不推荐使用。
# RollingUpdate:
# 代表滚动更新，会更新一部分Pod，逐步替换旧的Pod，默认就是这种类型。
type: RollingUpdate
# 定义滚动升级策略，前提是 "type: RollingUpdate"时该字段才有效。
rollingUpdate:
# 在升级的过程中，在原有副本数量基础之上，最多能够启动的Pod数量。
# 该字段支持百分比和数字，若不指定，则默认为:"25%"。
maxSurge: 2
# 在升级过程中，在原有副本数量基础之上，不可用的副本数量。
# 该字段支持百分比和数字，若不指定，则默认为:"25%"。
maxUnavailable: 1
replicas: 5
selector:
matchLabels:
apps: xiuxian
template:
metadata:
labels:
apps: xiuxian
version: v1
spec:
containers:
- name: c1
# image: registry.cn-hangzhou.aliyuncs.com/yinzhengjie-k8s/apps:v1
image: registry.cn-hangzhou.aliyuncs.com/yinzhengjie-k8s/apps:v2
# image: registry.cn-hangzhou.aliyuncs.com/yinzhengjie-k8s/apps:v3
# 指定镜像的拉取策略，有效值为: Always, Never, IfNotPresent
# Never:
# 如果本地有镜像则尝试启动。
# 如果本地没有镜像则不会去远程仓库拉取镜像。
# IfNotPresent:
# 如果本地有镜像则尝试启动。
# 如果本地没有镜像则去远程仓库拉取镜像。
# Always:
# 如果本地有镜像，则会将本地的镜像和远程仓库的摘要信息进行对比，若一致则直接使用本地缓存镜像，若不一致则重新拉取。
# 如果本地没有镜像，则直接从远程仓库拉取镜像。
#
# 默认策略会根据镜像的标签来定:
# 如果你的tag是"latest"，则默认策略为"Always";
# 若你的tag是非"latest"，则默认策略为"IfNotPresent"
imagePullPolicy: Always

apiVersion: v1
kind: Service
metadata:
name: xiuxian-svc-deploy
spec:
type: ClusterIP
clusterIP: 10.200.0.80
selector:
apps: xiuxian
ports:

  • port: 80
    targetPort: 80

[root@master231 deploy]#

[root@master231 ~]# kubectl get pods -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
deloy-xiuxian-update-b8c754-4s474 1/1 Running 0 35s 10.100.2.87 worker233
deloy-xiuxian-update-b8c754-97bh5 1/1 Running 0 35s 10.100.1.134 worker232
deloy-xiuxian-update-b8c754-dgmzp 1/1 Running 0 35s 10.100.1.135 worker232
deloy-xiuxian-update-b8c754-kpx6p 1/1 Running 0 35s 10.100.2.89 worker233
deloy-xiuxian-update-b8c754-wbc9q 1/1 Running 0 35s 10.100.2.88 worker233
[root@master231 ~]#
[root@master231 ~]#
[root@master231 ~]# kubectl get pods -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
deloy-xiuxian-update-5f77fddbd7-m4kd2 0/1 ContainerCreating 0 1s worker232
deloy-xiuxian-update-5f77fddbd7-plszj 0/1 ContainerCreating 0 1s worker233
deloy-xiuxian-update-5f77fddbd7-tz78m 0/1 ContainerCreating 0 1s worker232
deloy-xiuxian-update-b8c754-4s474 1/1 Running 0 54s 10.100.2.87 worker233
deloy-xiuxian-update-b8c754-97bh5 1/1 Running 0 54s 10.100.1.134 worker232
deloy-xiuxian-update-b8c754-dgmzp 1/1 Running 0 54s 10.100.1.135 worker232
deloy-xiuxian-update-b8c754-kpx6p 0/1 Terminating 0 54s 10.100.2.89 worker233
deloy-xiuxian-update-b8c754-wbc9q 1/1 Running 0 54s 10.100.2.88 worker233
[root@master231 ~]#
[root@master231 ~]#
[root@master231 ~]# kubectl get pods -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
deloy-xiuxian-update-5f77fddbd7-6tgf9 0/1 ContainerCreating 0 0s worker232
deloy-xiuxian-update-5f77fddbd7-8tq8s 0/1 ContainerCreating 0 1s worker233
deloy-xiuxian-update-5f77fddbd7-m4kd2 0/1 ContainerCreating 0 3s worker232
deloy-xiuxian-update-5f77fddbd7-plszj 1/1 Running 0 3s 10.100.2.90 worker233
deloy-xiuxian-update-5f77fddbd7-tz78m 1/1 Running 0 3s 10.100.1.136 worker232
deloy-xiuxian-update-b8c754-4s474 1/1 Running 0 56s 10.100.2.87 worker233
deloy-xiuxian-update-b8c754-dgmzp 1/1 Running 0 56s 10.100.1.135 worker232
deloy-xiuxian-update-b8c754-wbc9q 1/1 Terminating 0 56s 10.100.2.88 worker233
[root@master231 ~]#
[root@master231 ~]# kubectl get pods -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
deloy-xiuxian-update-5f77fddbd7-6tgf9 1/1 Running 0 105s 10.100.1.138 worker232
deloy-xiuxian-update-5f77fddbd7-8tq8s 1/1 Running 0 106s 10.100.2.91 worker233
deloy-xiuxian-update-5f77fddbd7-m4kd2 1/1 Running 0 108s 10.100.1.137 worker232
deloy-xiuxian-update-5f77fddbd7-plszj 1/1 Running 0 108s 10.100.2.90 worker233
deloy-xiuxian-update-5f77fddbd7-tz78m 1/1 Running 0 108s 10.100.1.136 worker232
[root@master231 ~]#

  • deploy实现响应式更新和回滚:
    1.响应式更新应用
    [root@master231 deploy]# kubectl set image deploy deloy-xiuxian-update-strategy c1=registry.cn-hangzhou.aliyuncs.com/yinzhengjie-k8s/apps:v3
    deployment.apps/deloy-xiuxian-update-strategy image updated
    [root@master231 deploy]#
    [root@master231 deploy]#
    [root@master231 deploy]# kubectl set image deploy deloy-xiuxian-update-strategy c1=registry.cn-hangzhou.aliyuncs.com/yinzhengjie-k8s/apps:v1
    deployment.apps/deloy-xiuxian-update-strategy image updated
    [root@master231 deploy]#

    2.查看应用发布的历史版本
    [root@master231 deploy]# kubectl rollout history deployment deloy-xiuxian-update-strategy
    deployment.apps/deloy-xiuxian-update-strategy
    REVISION CHANGE-CAUSE
    2
    3
    4

[root@master231 deploy]#

3.查看当前应用的部署状态

[root@master231 deploy]# kubectl rollout status deployment deloy-xiuxian-update-strategy
deployment "deloy-xiuxian-update-strategy" successfully rolled out
[root@master231 deploy]#

4.暂停更新

[root@master231 deploy]# kubectl rollout pause deployment deloy-xiuxian-update-strategy
deployment.apps/deloy-xiuxian-update-strategy paused
[root@master231 deploy]#

5.恢复更新

[root@master231 deploy]# kubectl rollout resume deployment deloy-xiuxian-update-strategy
deployment.apps/deloy-xiuxian-update-strategy resumed
[root@master231 deploy]#

6.回滚到上一个版本

[root@master231 deploy]# kubectl rollout undo deployment deloy-xiuxian-update-strategy
deployment.apps/deloy-xiuxian-update-strategy rolled back
[root@master231 deploy]#
[root@master231 deploy]# kubectl rollout history deployment deloy-xiuxian-update-strategy
deployment.apps/deloy-xiuxian-update-strategy
REVISION CHANGE-CAUSE
2
4
5

[root@master231 deploy]#
[root@master231 deploy]# kubectl rollout undo deployment deloy-xiuxian-update-strategy
deployment.apps/deloy-xiuxian-update-strategy rolled back
[root@master231 deploy]#
[root@master231 deploy]# kubectl rollout history deployment deloy-xiuxian-update-strategy
deployment.apps/deloy-xiuxian-update-strategy
REVISION CHANGE-CAUSE
2
5
6

[root@master231 deploy]#

7.回滚到指定版本

[root@master231 deploy]# kubectl rollout undo deployment deloy-xiuxian-update-strategy --to-revision=2
deployment.apps/deloy-xiuxian-update-strategy rolled back
[root@master231 deploy]#

apt-get install openjdk-17-jre # 在线安装较慢，建议离线安装

启动Jenkins报错：
java.lang.NullPointerException: Cannot load from short array because "sun.awt.FontConfiguration.head" is null

温馨提示，如果遇到上述问题，说明你没有安装fontconfig 软件包。

[root@jenkins211 ~]# mkdir -pv /oldboyedu/softwares

[root@jenkins211 ~]# wget http://192.168.16.253/Linux92/Kubernetes/day19-/softwares/jenkins/jdk-17_linux-x64_bin.tar.gz

[root@jenkins211 ~]# tar xf jdk-17_linux-x64_bin.tar.gz -C /oldboyedu/softwares/

[root@jenkins211 ~]# cat /etc/profile.d/jdk.sh

!/bin/bash

export JAVA_HOME=/oldboyedu/softwares/jdk-17.0.8
export PATH=$PATH:$JAVA_HOME/bin
[root@jenkins211 ~]#
[root@jenkins211 ~]# source /etc/profile.d/jdk.sh
[root@jenkins211 ~]#
[root@jenkins211 ~]#
[root@jenkins211 ~]# java --version
java 17.0.8 2023-07-18 LTS
Java(TM) SE Runtime Environment (build 17.0.8+9-LTS-211)
Java HotSpot(TM) 64-Bit Server VM (build 17.0.8+9-LTS-211, mixed mode, sharing)
[root@jenkins211 ~]#

4 安装Jenkins环境

apt-get install jenkins # 这种在线方式安装较慢，不建议。

[root@jenkins211 ~]# wget http://192.168.16.253/Linux92/Kubernetes/day19-/softwares/jenkins/jenkins_2.426.3_all.deb

[root@jenkins211 ~]# dpkg -i jenkins_2.426.3_all.deb

5 修改Jenkins的启动脚本并重启服务

[root@jenkins211 ~]# vim /lib/systemd/system/jenkins.service
......
User=root
Group=root

...
Environment="JENKINS_HOME=/var/lib/jenkins"

找到上面一行后添加如下一行

Environment="JAVA_HOME=/oldboyedu/softwares/jdk-17.0.8"

[root@jenkins211 ~]# systemctl daemon-reload
[root@jenkins211 ~]#
[root@jenkins211 ~]# systemctl restart jenkins

6 访问Jenkins的WebUI

[root@jenkins211 ~]# cat /var/lib/jenkins/secrets/initialAdminPassword

7 选择插件来安装

见视频。

8 跳过插件安装

见视频。

9 继续使用admin账号

见视频。

10 配置访问Jenkins的URL

见视频。

10 开始使用Jenkins

见视频。

  • Jenkins的基础配置
    1 Jenkins的管理员密码和时区设置
    1.1 点击配置按钮
    见视频。

     1.2 修改密码和时区

见视频。

	1.3 使用新密码重新登录

见视频。

2 Jenkins的软件源配置
	2.1 修改插件国内镜像源地址

[root@jenkins211 ~]# sed -i.bak 's#updates.jenkins.io/download#mirror.tuna.tsinghua.edu.cn/jenkins#g' /var/lib/jenkins/updates/default.json

	2.2 修改搜索引擎地址

[root@jenkins211 ~]# sed -i 's#www.google.com#www.baidu.com#g' /var/lib/jenkins/updates/default.json

	2.3 将升级站点URL替换成国内镜像地址

修改地址:
https://mirror.tuna.tsinghua.edu.cn/jenkins/updates/update-center.json

  • 安装Jenkins常用插件
    1 安装Jenkins中文插件，需重启

    2 安装git插件

    3 安装的webhook插件

    4 安装pipeline插件

    5 安装ansible插件

    6 安装email插件

    7 安装DingTalk插件

    8 安装微信插件

    9.安装git参数化构建
    Git Parameter

    10 一键导入插件

将我下载好的软件包导入到"/var/lib/jenkins/plugins"目录并重启Jenkins环境。
[root@jenkins211 ~]# wget http://192.168.16.253/Linux92/Kubernetes/day19-/softwares/jenkins/oldboyedu-jenkins211-plugins.tar.gz

[root@jenkins211 ~]# tar xf oldboyedu-jenkins211-plugins.tar.gz -C /var/lib/jenkins/plugins/

[root@jenkins211 ~]# systemctl restart jenkins

  • 推送代码到gitee
    1.新建代码仓库
    略，见视频。

    2.模拟开发人员编写代码
    [root@worker233 ~]# wget http://192.168.16.253/Linux92/Kubernetes/day19-/softwares/jenkins/oldboyedu-yiliao.zip
    [root@worker233 ~]#
    [root@worker233 ~]# mkdir oldboyedu-linux92
    [root@worker233 ~]#
    [root@worker233 ~]# apt -y install unzip
    [root@worker233 ~]#
    [root@worker233 ~]# unzip oldboyedu-yiliao.zip -d oldboyedu-linux92/
    [root@worker233 ~]#
    [root@worker233 ~]# cd oldboyedu-linux92/
    [root@worker233 oldboyedu-linux92]#
    [root@worker233 oldboyedu-linux92]# ll
    total 224
    drwxr-xr-x 5 root root 4096 Aug 2 16:22 ./
    drwx------ 10 root root 4096 Aug 2 16:21 ../
    -rw-r--r-- 1 root root 16458 Jun 13 2019 about.html
    -rw-r--r-- 1 root root 20149 Jun 13 2019 album.html
    -rw-r--r-- 1 root root 19662 Jun 13 2019 article_detail.html
    -rw-r--r-- 1 root root 18767 Jun 13 2019 article.html
    -rw-r--r-- 1 root root 18913 Jun 13 2019 comment.html
    -rw-r--r-- 1 root root 16465 Jun 13 2019 contact.html
    drwxr-xr-x 2 root root 4096 Sep 19 2022 css/
    drwxr-xr-x 5 root root 4096 Sep 19 2022 images/
    -rw-r--r-- 1 root root 29627 Jun 29 2019 index.html
    drwxr-xr-x 2 root root 4096 Sep 19 2022 js/
    -rw-r--r-- 1 root root 24893 Jun 13 2019 product_detail.html
    -rw-r--r-- 1 root root 20672 Jun 13 2019 product.html
    [root@worker233 oldboyedu-linux92]#

    3.编写Dockerfile
    [root@worker233 oldboyedu-linux92]# cat Dockerfile
    FROM registry.cn-hangzhou.aliyuncs.com/yinzhengjie-k8s/apps:v1

MAINTAINER JasonYin

LABEL auther=jasonyin
school=oldboyedu
class=linux92

EXPOSE 80

WORKDIR /usr/share/nginx/html/

ADD . /usr/share/nginx/html/

[root@worker233 oldboyedu-linux92]#

4.Git 全局设置【写你的账号密码信息】

[root@worker233 oldboyedu-linux92]# git config --global user.name "jasonyin2020"
[root@worker233 oldboyedu-linux92]# git config --global user.email "[email protected]"
[root@worker233 oldboyedu-linux92]#

5.初始化git项目

[root@worker233 oldboyedu-linux92]# git init
hint: Using 'master' as the name for the initial branch. This default branch name
hint: is subject to change. To configure the initial branch name to use in all
hint: of your new repositories, which will suppress this warning, call:
hint:
hint: git config --global init.defaultBranch
hint:
hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
hint: 'development'. The just-created branch can be renamed via this command:
hint:
hint: git branch -m
Initialized empty Git repository in /root/oldboyedu-linux92/.git/
[root@worker233 oldboyedu-linux92]#

6.推送代码到本地仓库

[root@worker233 oldboyedu-linux92]# git add .
[root@worker233 oldboyedu-linux92]# git commit -m 'add dockerfile'

7.添加远程仓库

[root@worker233 oldboyedu-linux92]# git remote add origin https://gitee.com/jasonyin2020/oldboyedu-linux92.git
[root@worker233 oldboyedu-linux92]#
[root@worker233 oldboyedu-linux92]# git remote -v
origin https://gitee.com/jasonyin2020/oldboyedu-linux92.git (fetch)
origin https://gitee.com/jasonyin2020/oldboyedu-linux92.git (push)
[root@worker233 oldboyedu-linux92]#

8.推送文件到远程gitee仓库

[root@worker233 oldboyedu-linux92]# git push -u origin "master"
Username for 'https://gitee.com': jasonyin2020 # 写你自己的账号，我的账号是"jasonyin2020",你写你自己的账号。
Password for 'https://[email protected]': # 写你自己的密码
Enumerating objects: 91, done.
Counting objects: 100% (91/91), done.
Delta compression using up to 2 threads
Compressing objects: 100% (91/91), done.
Writing objects: 100% (91/91), 1.48 MiB | 3.27 MiB/s, done.
Total 91 (delta 12), reused 0 (delta 0), pack-reused 0
remote: Powered by GITEE.COM [GNK-6.4]
To https://gitee.com/jasonyin2020/oldboyedu-linux92.git

  • Jenkins和gitee的连通性测试
    1.新建Jenkins的自由风格项目
    略，见视频。

    2.设置gitee仓库信息
    略，见视频。

    3.添加测试命令
    pwd
    ls -l ./

    4.立即构建
    略，见视频。

    5.验证是否构建成功
    略，见视频。

  • Jenkins从gitee拉取代码并推送镜像
    1.创建harbor仓库
    略，见视频。

    2.修改Jenkins的项目配置的脚本内容
    docker image build -t harbor.oldboyedu.com/oldboyedu-jenkins/yiliao:v1 .
    docker push harbor.oldboyedu.com/oldboyedu-jenkins/yiliao:v1

    3.Jenkins节点安装docker环境
    [root@jenkins211 ~]# wget http://192.168.16.253/Linux92/Kubernetes/day19-/softwares/jenkins/oldboyedu-docker-compose-binary-install.tar.gz

[root@jenkins211 ~]# tar xf oldboyedu-docker-compose-binary-install.tar.gz

[root@jenkins211 ~]# ./install-docker.sh install

4.添加hosts解析，添加harbor主机的解析记录。

[root@jenkins211 ~]# echo 10.0.0.250 harbor.oldboyedu.com >> /etc/hosts

5.拷贝harbor的自建客户端证书

[root@jenkins211 ~]# mkdir -pv /etc/docker/certs.d/harbor.oldboyedu.com
mkdir: created directory '/etc/docker/certs.d'
mkdir: created directory '/etc/docker/certs.d/harbor.oldboyedu.com'
[root@jenkins211 ~]#
[root@jenkins211 ~]# scp harbor.oldboyedu.com:/oldboyedu/softwares/harbor/certs/docker-client/* /etc/docker/certs.d/harbor.oldboyedu.com
[root@jenkins211 ~]#
[root@jenkins211 ~]# ll /etc/docker/certs.d/harbor.oldboyedu.com
total 20
drwxr-xr-x 2 root root 4096 Aug 2 16:54 ./
drwxr-xr-x 3 root root 4096 Aug 2 16:53 ../
-rw-r--r-- 1 root root 2049 Aug 2 16:54 ca.crt
-rw-r--r-- 1 root root 2147 Aug 2 16:54 harbor.oldboyedu.com.cert
-rw------- 1 root root 3272 Aug 2 16:54 harbor.oldboyedu.com.key
[root@jenkins211 ~]#

6.登录harbor仓库

[root@jenkins211 ~]# docker login -u admin -p 1 harbor.oldboyedu.com
WARNING! Using --password via the CLI is insecure. Use --password-stdin.
WARNING! Your password will be stored unencrypted in /root/.docker/config.json.
Configure a credential helper to remove this warning. See
https://docs.docker.com/engine/reference/commandline/login/#credentials-store

Login Succeeded
[root@jenkins211 ~]#

7.开始构建镜像并推送harbor仓库

略，见视频。

8.检查harbor项目是否推送成功。

略。

  • Jenkins一键更新K8S应用
    1.K8S部署医疗项目
    [root@master231 01-yiliao]# cat 01-ns-yiliao.yaml
    apiVersion: v1
    kind: Namespace
    metadata:
    labels:
    school: oldboyedu
    class: linux92
    name: yiliao
    [root@master231 01-yiliao]#
    [root@master231 01-yiliao]# cat 02-deploy-yiliao.yaml
    apiVersion: apps/v1
    kind: Deployment
    metadata:
    name: deploy-yiliao
    namespace: yiliao
    spec:
    replicas: 3
    selector:
    matchLabels:
    apps: yiliao
    template:
    metadata:
    labels:
    apps: yiliao
    spec:
    containers:
    - name: yiliao
    image: harbor.oldboyedu.com/oldboyedu-jenkins/yiliao:v1
    [root@master231 01-yiliao]#
    [root@master231 01-yiliao]#
    [root@master231 01-yiliao]# cat 03-svc-yiliao.yaml
    apiVersion: v1
    kind: Service
    metadata:
    name: yiliao-svc
    namespace: yiliao
    spec:
    type: NodePort
    selector:
    apps: yiliao
    ports:
    • port: 80
      targetPort: 80
      nodePort: 30080
      [root@master231 01-yiliao]#
      [root@master231 01-yiliao]# kubectl apply -f .
      namespace/yiliao created
      deployment.apps/deploy-yiliao created
      service/yiliao-svc created
      [root@master231 01-yiliao]#
      [root@master231 01-yiliao]# kubectl get svc,po -n yiliao
      NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
      service/yiliao-svc NodePort 10.200.4.151 80:30080/TCP 88s

NAME READY STATUS RESTARTS AGE
pod/deploy-yiliao-79c8886b59-6qlbf 1/1 Running 0 88s
pod/deploy-yiliao-79c8886b59-c7dbw 1/1 Running 0 88s
pod/deploy-yiliao-79c8886b59-n8r9p 1/1 Running 0 88s
[root@master231 01-yiliao]#

2.访问测试

http://10.0.0.233:30080/

3.Jenkins更新K8S应用
	3.1 下载kubect的详细步骤

https://www.cnblogs.com/yinzhengjie/p/17981419#31-下载k8s二进制软件版

svip:
[root@jenkins211 ~]# wget http://192.168.16.253/Linux92/Kubernetes/day19-/softwares/jenkins/kubectl-1.23.17

	3.2 将kubectl放到PATH环境变量

[root@jenkins211 ~]# mv kubectl-1.23.17 /usr/local/sbin/kubectl
[root@jenkins211 ~]#
[root@jenkins211 ~]# chmod +x /usr/local/sbin/kubectl

	3.3 拷贝master节点的证书

[root@jenkins211 ~]# mkdir -pv ~/.kube/
[root@jenkins211 ~]#
[root@jenkins211 ~]# scp 10.0.0.231:/root/.kube/config ~/.kube/

	3.4 修改Jenkins脚本内容

docker image build -t harbor.oldboyedu.com/oldboyedu-jenkins/yiliao:v3 .
docker push harbor.oldboyedu.com/oldboyedu-jenkins/yiliao:v3
kubectl -n yiliao set image deploy deploy-yiliao yiliao=harbor.oldboyedu.com/oldboyedu-jenkins/yiliao:v3

	3.5 测试验证

略。

  • Jenkins自定义文本参数进行版本构建
    1.添加文本参数变量
    略，见视频。

      2.脚本内容

docker image build -t harbor.oldboyedu.com/oldboyedu-jenkins/yiliao:$version .
docker push harbor.oldboyedu.com/oldboyedu-jenkins/yiliao:$version
kubectl -n yiliao set image deploy deploy-yiliao yiliao=harbor.oldboyedu.com/oldboyedu-jenkins/yiliao:$version

  • Jenkins自定义选项参数进行版本构建
    1.添加选项参数变量
    略，见视频。

      2.脚本内容

docker image build -t harbor.oldboyedu.com/oldboyedu-jenkins/yiliao:$tag .
docker push harbor.oldboyedu.com/oldboyedu-jenkins/yiliao:$tag
kubectl -n yiliao set image deploy deploy-yiliao yiliao=harbor.oldboyedu.com/oldboyedu-jenkins/yiliao:$tag

  • Jenkins基于git参数化构建
    1.添加git参数变量
    注意选择分支，参数类型是"修订"，可以基于"标签"，前提是你推过标签。

    2.脚本内容
    docker image build -t harbor.oldboyedu.com/oldboyedu-jenkins/yiliao:$release .
    docker push harbor.oldboyedu.com/oldboyedu-jenkins/yiliao:$release
    kubectl -n yiliao set image deploy deploy-yiliao yiliao=harbor.oldboyedu.com/oldboyedu-jenkins/yiliao:$release

  • Jenkins实现回滚
    略。

  • 今日内容回顾:

    • rs和rc的区别 *

    • deploy控制器 ****

      • 1.底层调用的是rs;
      • 2.支持声明式更新;
      • 3.默认有滚动更新策略;

    • Jenkins和K8S集成实现CI/CD *****

      • Jenkins的环境部署
      • 插件导入
      • 推送代码到gitee
      • Jenkins拉取代码编译推送到habor仓库
      • Jenkins更新K8S应用
      • Jenkins回滚

    • 镜像拉取策略：**
      Always
      IfNotPresent
      Never

周末作业:
- 完成课堂的所有练习并整理思维导图;
- 将Jenkins实现邮件，钉钉，企业微信告警功能，可以集成sonerQube，maven，...进行集成;

扩展:
- 1.使用pipeline语法改写自由风格的代码;
- 2.在网上找一个开发代码再跑一遍咱们的环境;

标签：oldboyedu,master231,deploy,19,CICD,apps,xiuxian,root
From： https://www.cnblogs.com/colorsound/p/18340911

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