kubernetes构建一套基础tomcat8 jdk8镜像

1、RC类型tomcat基础镜像

#1、编写yaml文件
apiVersion: v1 #api版本 固定
kind: ReplicationController  #kind类型ReplicationController
metadata:   
  name: zk-web
spec:           #spec.selector是RC的pod选择器，spec.selector是RC的pod选择器，确保当前集群上始终有且仅有replicas个pod实例运行，这里我们spec.replicas=1表示只能运行一个(名为的zk-web)pod 实例
  replicas: 1   #指启动几个副本
  selector:     #pod选择器
    app: zk-web
  template:     #当集群中运行的pod数量小于replicas时，RC会根据spec.template 段定义的pod模版来生成一个新的pod实例，labels属性指定了该pod的标签,这里的labels必须匹配RC的spec.selecto
    metadata:
      labels:
        app: zk-web
    spec:       #spec.image表示镜像地址。
      containers:
        - name: zk-web
          image: harbor.suixingpay.com/study/tomcat-app:v2
          ports:   #表示容器服务的端口
          - containerPort: 8080
          env:  #表示定义环境变量
          - name: MYSQL_SERVICE_HOST
            value: 'zk-mysql'
          - name: MYSQL_SERVICE_PORT
            value: '3306'

2、TOMCAT Docerfile

FROM harbor.suixingpay.com/study/centos:6.7
RUN yum install wget -y
RUN wget -O /etc/yum.repos.d/epel.repo http://172.16.132.241/epel/epel.repo
RUN wget -O /etc/yum.repos.d/CentOS-Base.repo http://172.16.132.241/centos/CentOS-Base.repo
RUN yum makecache fast
RUN yum install tar  wget openssl openssh-server sudo  -y
RUN sed -i 's/UsePAM yes/UsePAM no/g' /etc/ssh/sshd_config
RUN echo "root:root" | chpasswd
##优化
RUN echo '*               -       nofile          65535 ' >>/etc/security/limits.conf
RUN cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
# install JDK1.8
RUN  wget http://172.16.132.241/soft/jdk/8u111/jdk-8u111-linux-x64.tar.gz
RUN  tar zxvf jdk-8u111-linux-x64.tar.gz  -C /opt
#RUN echo 'JAVA_HOME="/opt/jdk_1.8"' >>/etc/profile
#RUN echo 'CLASSPATH="$CLASSPATH:$JAVA_HOME/lib:$JAVA_HOME/jre/lib"'>>/etc/profile
#RUN echo 'PATH="$JAVA_HOME/bin:$JAVA_HOME/jre/bin:$PATH:$HOMR/bin"' >>/etc/profile
ENV JAVA_HOME /opt/jdk1.8.0_111
ADD apache-tomcat-8.0.14.tar.gz /opt
RUN cd /opt/ && ls
EXPOSE 22
EXPOSE 8080
#RUN cd /opt/ && ls &&tar zxvf /opt/apache-tomcat-8.0.14.tar.gz
ENV CATALINA_HOME /opt/apache-tomcat-8.0.14
ENV PATH $PATH:$CATALINA_HOME/bin
ADD tomcat.sh /etc/init.d/tomcat
RUN chmod +x /etc/init.d/tomcat
#CMD ["/opt/tomcat.sh start"]
# /sbin/service sshd start
ENTRYPOINT /sbin/service sshd start &&  /sbin/service tomcat start && tail -f /opt/apache-tomcat-8.0.14/logs/catalina.out
#EXPOSE 22
#EXPOSE 8080
##tomcat.sh
export JAVA_HOME=/opt/jdk1.8.0_111
export TOMCAT_HOME=/opt/apache-tomcat-8.0.14
case $1 in
start)
  sh $TOMCAT_HOME/bin/startup.sh
;;
stop)
  sh $TOMCAT_HOME/bin/shutdown.sh
;;
restart)
  sh $TOMCAT_HOME/bin/shutdown.sh
  sh $TOMCAT_HOME/bin/startup.sh
;;
esac
exit 0
##生成镜像
[root@k8s-harbor01 tomcat]# docker build -t harbor.suixingpay.com/zhaikun/cent_tomcat:3.1 .
[root@k8s-harbor01 tomcat]# docker push harbor.suixingpay.com/zhaikun/cent_tomcat:3.1

3、RC类型基础镜像

apiVersion: v1
kind: ReplicationController
metadata:
  name: zk-jdk-tomcat
spec:
  replicas: 1
  selector:
    app: zk-jdk-tomcat
  template:
    metadata:
      labels:
        app: zk-jdk-tomcat
    spec:
      containers:
        - name: zk-jdk-tomcat
          image: harbor.suixingpay.com/zhaikun/cent_tomcat:3.1
          ports:
          - containerPort: 8080

4、SERVER类型基础镜像

apiVersion: v1
kind: Service
metadata:
  name: zk-jdk-tomcat
spec:
  type: NodePort
  ports:
    - port: 8080
      nodePort: 30009
  selector:
    app: zk-jdk-tomcat