使用docker制作tomcat镜像

制作自己的tomcat镜像

准备镜像文件

• tomcat压缩包

• jdk的压缩包

  
  image.png

编写Dockerfile文件，build会自动寻找该文件，就不需要-f 指定了

FROM centos
MAINTAINER lh<998765f456@qq.com>

COPY readme.txt /usr/local/readme.txt
# ADD 命令会自动解压缩压缩包
ADD jdk-8u141-linux-x64.tar.gz /usr/local/
ADD apache-tomcat-8.5.83.tar.gz /usr/local/

RUN yum -y install vim

ENV MYPATH /usr/local

WORKDIR $MYPATH

ENV JAVA_HOME /usr/local/jdk1.8.0_141
ENV CLASSPATH $JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
ENV CATALINA_HOME /usr/local/apache-tomcat-8.5.83
ENV CATALINA_BASH /usr/local/apache-tomcat-8.5.83
ENV PATH $PATH:$JAVA_HOME/bin:$CATALINA_HOME/lib;$CATALINA_HOME/bin

EXPOSE 8080

CMD /usr/local/apache-tomcat-8.5.83/bin/startup.sh && tail -F /usr/local/apache-tomcat-8.5.83/bin/logs/catalina.out

docker build -t diytomcat . 构建镜像

lh@lh-pc:~/tomcat$ docker build -t diytomcat .
Sending build context to Docker daemon  196.1MB
Step 1/14 : FROM centos
 ---> 5d0da3dc9764
Step 2/14 : MAINTAINER lh<998765f456@qq.com>
 ---> Using cache
 ---> a651b8075267
Step 3/14 : COPY readme.txt /usr/local/readme.txt
 ---> Using cache
 ---> 6f5948eaf131
Step 4/14 : ADD jdk-8u141-linux-x64.tar.gz /usr/local/
 ---> Using cache
 ---> 6eadca165c8e
Step 5/14 : ADD apache-tomcat-8.5.83.tar.gz /usr/local/
 ---> Using cache
 ---> 1fe5585ba3c8
Step 6/14 : ENV MYPATH /usr/local
 ---> Running in 1dec052074b6
Removing intermediate container 1dec052074b6
 ---> dc6cecfb088a
Step 7/14 : WORKDIR $MYPATH
 ---> Running in 812d54ae5a87
Removing intermediate container 812d54ae5a87
 ---> 63994e594a9f
Step 8/14 : ENV JAVA_HOME /usr/local/jdk1.8.0_141
 ---> Running in 0b95775eb607
Removing intermediate container 0b95775eb607
 ---> 2b3994e426db
Step 9/14 : ENV CLASSPATH $JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
 ---> Running in 0cb6c9cfb7b9
Removing intermediate container 0cb6c9cfb7b9
 ---> 839ad504e2c7
Step 10/14 : ENV CATALINA_HOME /usr/local/apache-tomcat-8.5.83
 ---> Running in c1b22129d2c1
Removing intermediate container c1b22129d2c1
 ---> ffc3147249e7
Step 11/14 : ENV CATALINA_BASH /usr/local/apache-tomcat-8.5.83
 ---> Running in 76e7c64f7560
Removing intermediate container 76e7c64f7560
 ---> 8783d5e38502
Step 12/14 : ENV PATH $PATH:$JAVA_HOME/bin:$CATALINA_HOME/lib;$CATALINA_HOME/bin
 ---> Running in cf3953ddd8a8
Removing intermediate container cf3953ddd8a8
 ---> 29335e79e746
Step 13/14 : EXPOSE 8080
 ---> Running in 1076ee2c17d5
Removing intermediate container 1076ee2c17d5
 ---> 0f894562be43
Step 14/14 : CMD /usr/local/apache-tomcat-8.5.83/bin/startup.sh && tail -F /usr/local/apache-tomcat-8.5.83/bin/logs/catalina.out
 ---> Running in adf0c8f9791b
Removing intermediate container adf0c8f9791b
 ---> 5c16a9e565e4
Successfully built 5c16a9e565e4
Successfully tagged diytomcat:latest

启动镜像

docker run -d -p 9090:8080 --name diytomcat -v ~/tomcat/test:/usr/local/apache-tomcat-8.5.83/webapps/test -v ~/tomcat/tomcatlogs/:/usr/local/apache-tomcat-8.5.83/logs diytomcat

访问tomcat

image.png

save和load镜像

使用docker save命令保存已有的镜像为压缩包

# docker save -o diytomcat_save.tar 镜像名称
docker save -o diytomcat_save.tar diytomcat

使用docker load命令解压已有压缩包为镜像

docker load -i diytomcat_save.tar