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个人网站备案 淘宝客,国外网站模板,微信微网站统计,中国建筑考试网入口Kubernetes 实战案例 Kubernetes实战案例-规划(基于nerdctl buildkitdcontainerd构建容器镜像) 业务容器化优势#xff1a;
① 提高资源利用率、节约部署IT成本。 ② 提高部署效率#xff0c;基于kubernetes实现微服务的快速部署与交付、容器的批量调度与秒级启动。 ③…Kubernetes 实战案例 Kubernetes实战案例-规划(基于nerdctl buildkitdcontainerd构建容器镜像) 业务容器化优势
①  提高资源利用率、节约部署IT成本。 ②  提高部署效率基于kubernetes实现微服务的快速部署与交付、容器的批量调度与秒级启动。 ③  实现横向扩容、灰度部署、回滚、链路追踪、服务治理等。 ④  可根据业务负载进行自动弹性伸缩。 ⑤  容器将环境和代码打包在镜像内保证了测试与生产运行环境的一致性。 ⑥ 紧跟云原生社区技术发展的步伐不给公司遗留技术债为后期技术升级夯实了基础。 ⑦ 为个人储备前沿技术提高个人level。 业务容器化案例之一: 业务规划及镜像分层构建 #构建Centos基础镜像 [rootk8s-master1 centos]#cat Dockerfile #自定义Centos 基础镜像 FROM centos:7.9.2009 MAINTAINER kun 1710269083qq.com ADD CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo ADD epel-7.repo /etc/yum.repos.d/epel.repo ADD filebeat-7.12.1-x86_64.rpm /tmp RUN cp /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup yum repolist yum install -y /tmp/filebeat-7.12.1-x86_64.rpm vim wget tree lrzsz gcc gcc-c automake pcre pcre-devel zlib zlib-devel openssl openssl-devel iproute net-tools iotop rm -rf /etc/localtime /tmp/filebeat-7.12.1-x86_64.rpm ln -snf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime useradd nginx -u 2088 [rootk8s-master1 centos]#cat build-command.sh #!/bin/bash/usr/local/bin/nerdctl build -t harbor.chendd.fun/images/centos:7.9.2009 . /usr/local/bin/nerdctl push harbor.chendd.fun/images/centos:7.9.2009#构建jdk—1.8.212基础镜像 [rootk8s-master1 jdk-1.8.212]#cat Dockerfile #JDK Base Image FROM harbor.chendd.fun/mageimages/centos:7.9.2009 #FROM centos:7.9.2009MAINTAINER kun 1710269083qq.comADD jdk-8u212-linux-x64.tar.gz /usr/local/src/ RUN ln -sv /usr/local/src/jdk1.8.0_212 /usr/local/jdk ADD profile /etc/profileENV JAVA_HOME /usr/local/jdk ENV JRE_HOME \(JAVA_HOME/jre ENV CLASSPATH \)JAVA_HOME/lib/:\(JRE_HOME/lib/ ENV PATH \)PATH:\(JAVA_HOME/bin [rootk8s-master1 jdk-1.8.212]#cat build-command.sh #!/bin/bash #docker build -t harbor.chendd.fun/pub-images/jdk-base:v8.212 . #sleep 1 #docker push harbor.chendd.fun/pub-images/jdk-base:v8.212nerdctl build -t harbor.chendd.fun/pub-images/jdk-base:v8.212 .nerdctl push harbor.chendd.fun/pub-images/jdk-base:v8.212#构建nginx:1.22基础镜像 [rootk8s-master1 nginx-base]#cat Dockerfile #Nginx Base Image FROM harbor.chendd.fun/mageimages/centos:7.9.2009 MAINTAINER kunkun.netRUN yum install -y vim wget tree lrzsz gcc gcc-c automake pcre pcre-devel zlib zlib-devel openssl openssl-devel iproute net-tools iotop ADD nginx-1.22.0.tar.gz /usr/local/src/ RUN cd /usr/local/src/nginx-1.22.0 ./configure make make install ln -sv /usr/local/nginx/sbin/nginx /usr/sbin/nginx rm -rf /usr/local/src/nginx-1.22.0.tar.gz [rootk8s-master1 nginx-base]#cat build-command.sh #!/bin/bash #docker build -t harbor.magedu.net/pub-images/nginx-base:v1.18.0 . #sleep 1 #docker push harbor.magedu.net/pub-images/nginx-base:v1.18.0nerdctl build -t harbor.chendd.fun/pub-images/nginx-base:v1.22.0 .nerdctl push harbor.chendd.fun/pub-images/nginx-base:v1.22.0业务容器化案例之二 NginxTomcatNFS实现动静分离 # 构建dockerfile 业务容器tomcat [rootk8s-master1 tomcat-app1]#cat Dockerfile #tomcat web1 FROM harbor.chendd.fun/pub-images/tomcat-base:v8.5.43 ADD catalina.sh /apps/tomcat/bin/catalina.sh ADD server.xml /apps/tomcat/conf/server.xml #ADD myapp/* /data/tomcat/webapps/myapp/ ADD app1.tar.gz /data/tomcat/webapps/app1/ ADD run_tomcat.sh /apps/tomcat/bin/run_tomcat.sh #ADD filebeat.yml /etc/filebeat/filebeat.yml RUN chown -R nginx.nginx /data/ /apps/ #ADD filebeat-7.5.1-x86_64.rpm /tmp/ #RUN cd /tmp yum localinstall -y filebeat-7.5.1-amd64.debEXPOSE 8080 8443CMD [/apps/tomcat/bin/run_tomcat.sh] [rootk8s-master1 tomcat-app1]#bash build-command.sh v1# 构建dockerfile 业务容器nginx [rootk8s-master1 nginx]#cat Dockerfile #Nginx 1.22.0 FROM harbor.chendd.fun/pub-images/nginx-base:v1.22.0 ADD nginx.conf /usr/local/nginx/conf/nginx.conf ADD app1.tar.gz /usr/local/nginx/html/webapp/ ADD index.html /usr/local/nginx/html/index.html#静态资源挂载路径 RUN mkdir -p /usr/local/nginx/html/webapp/static /usr/local/nginx/html/webapp/images EXPOSE 80 443CMD [nginx] [rootk8s-master1 nginx]#cat build-command.sh #!/bin/bash TAG\)1 #docker build -t harbor.chendd.fun/magedu/nginx-web1:\({TAG} . #echo 镜像构建完成即将上传到harbor #sleep 1 #docker push harbor.chendd.fun/magedu/nginx-web1:\){TAG} #echo 镜像上传到harbor完成nerdctl build -t harbor.chendd.fun/magedu/nginx-web1:\({TAG} .nerdctl push harbor.chendd.fun/magedu/nginx-web1:\){TAG}[rootk8s-master1 nginx]#bash build-command.sh v1 k8s资源配置 #tomcat资源清单 [rootk8s-master1 tomcat-app1]#cat tomcat-app1.yaml kind: Deployment #apiVersion: extensions/v1beta1 apiVersion: apps/v1 metadata:labels:app: magedu-tomcat-app1-deployment-labelname: magedu-tomcat-app1-deploymentnamespace: magedu spec:replicas: 1selector:matchLabels:app: magedu-tomcat-app1-selectortemplate:metadata:labels:app: magedu-tomcat-app1-selectorspec:containers:- name: magedu-tomcat-app1-containerimage: harbor.chendd.fun/magedu/tomcat-app1:v1#command: [/apps/tomcat/bin/run_tomcat.sh]imagePullPolicy: IfNotPresent#imagePullPolicy: Alwaysports:- containerPort: 8080protocol: TCPname: httpenv:- name: passwordvalue: 123456- name: agevalue: 18#resources:# limits:# cpu: 1# memory: 512Mi# requests:# cpu: 500m# memory: 512MivolumeMounts:- name: magedu-imagesmountPath: /usr/local/nginx/html/webapp/imagesreadOnly: false- name: magedu-staticmountPath: /usr/local/nginx/html/webapp/staticreadOnly: falsevolumes:- name: magedu-imagesnfs:server: 10.0.0.113path: /data/k8sdata/magedu/images- name: magedu-staticnfs:server: 10.0.0.113path: /data/k8sdata/magedu/static

nodeSelector:

project: magedu

app: tomcat

kind: Service apiVersion: v1 metadata:labels:app: magedu-tomcat-app1-service-labelname: magedu-tomcat-app1-servicenamespace: magedu spec:type: NodePortports:- name: httpport: 80protocol: TCPtargetPort: 8080nodePort: 30092selector:app: magedu-tomcat-app1-selector#nginx资源清单 [rootk8s-master1 nginx]#cat nginx.yaml kind: Deployment apiVersion: apps/v1 metadata:labels:app: magedu-nginx-deployment-labelname: magedu-nginx-deploymentnamespace: magedu spec:replicas: 1selector:matchLabels:app: magedu-nginx-selectortemplate:metadata:labels:app: magedu-nginx-selectorspec:containers:- name: magedu-nginx-containerimage: harbor.chendd.fun/magedu/nginx-web1:v1#command: [/apps/tomcat/bin/run_tomcat.sh]#imagePullPolicy: IfNotPresentimagePullPolicy: Alwaysports:- containerPort: 80protocol: TCPname: http- containerPort: 443protocol: TCPname: httpsenv:- name: passwordvalue: 123456- name: agevalue: 20resources:limits:cpu: 500mmemory: 512Mirequests:cpu: 500mmemory: 256MivolumeMounts:- name: magedu-imagesmountPath: /usr/local/nginx/html/webapp/imagesreadOnly: false- name: magedu-staticmountPath: /usr/local/nginx/html/webapp/staticreadOnly: falsevolumes:- name: magedu-imagesnfs:server: 10.0.0.113path: /data/k8sdata/magedu/images - name: magedu-staticnfs:server: 10.0.0.113path: /data/k8sdata/magedu/static#nodeSelector:# group: magedu— kind: Service apiVersion: v1 metadata:labels:app: magedu-nginx-service-labelname: magedu-nginx-servicenamespace: magedu spec:type: NodePortports:- name: httpport: 80protocol: TCPtargetPort: 80nodePort: 30090- name: httpsport: 443protocol: TCPtargetPort: 443nodePort: 30091selector:app: magedu-nginx-selector 测试结果 [rootk8s-master1 nginx]#kubectl get -n magedu pod,svc -o wide NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES pod/magedu-nginx-deployment-dc6b88d87-krtw7 ¹⁄₁ Running 0 4h34m 10.200.107.194 10.0.0.113 none none pod/magedu-tomcat-app1-deployment-5866b5677-l74xs ¹⁄₁ Running 0 5h12m 10.200.107.196 10.0.0.113 none noneNAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE SELECTOR service/magedu-nginx-service NodePort 10.100.177.90 none 80:30090/TCP,443:30091/TCP 4h34m appmagedu-nginx-selector service/magedu-tomcat-app1-service NodePort 10.100.13.0 none 80:30092/TCP 5h12m appmagedu-tomcat-app1-selector业务容器化案例之二 NginxTomcatNFS实现动静分离  Nginx 基础镜像制作  Nginx业务镜像制作  Nginx业务镜像测试  在kubernetes环境运行nginx  JDK基础镜像制作  tomcat基础镜像制作  tomcat业务镜像app1制作  在kubernetes环境运行tomcat  在kubernetes中nginxtomcat实现动静分离  基于NFS实现数据共享  在后端服务生成数据并访问验证