下载alpine系统镜像
[root@docker~]# docker pull alpine:3.14
准备alpine镜像源文件
[root@docker~]# mkdir alpine
[root@docker alpine]# vim repositories
http://mirrors.aliyun.com/alpine/v3.14/main
http://mirrors.aliyun.com/alpine/v3.14/community
编写Dockerfile文件
FROM alpine:3.14 #指定基础镜像
LABEL maintainer="quhongzhi1212@163.com" #作者信息
COPY repositories /etc/apk/repositories #拷贝镜像源文件
RUN apk update && apk --no-cache add iotop gcc libgcc libc-dev libcurl libc-utils pcre-dev zlib-dev libnfs make pcre pcre2 zip unzip
net-tools pstree wget libevent libevent-dev iproute2 openjdk8-jre-base #安装JDK及相关软件包构建基于alpine的JDK镜像
[root@docker alpine]# docker build -t alpine-jdk:v1.8 .
[root@docker alpine]# docker images alp*
REPOSITORY TAG IMAGE ID CREATED SIZE
alpine-jdk 8u212 d8be19eb2843 About a minute ago 598MB
alpine 3.14 021b3423115f 2 weeks ago 5.6MB
从JDK镜像构建tomcat 8 Base镜像
下载tomcat安装包
[root@docker ~]# mkdir tomcat &&cd tomcat
[root@docker tomcat]# wget https://mirrors.tuna.tsinghua.edu.cn/apache/tomcat/tomcat-8/v8.5.70/bin/apache-tomcat-8.5.70.tar.gz
编写Dockerfile文件
FROM alpine-jdk:v1.8
LABEL maintainer="quhongzhi1212@163.com>"
ENV TZ "Asia/Shanghai"
ENV LANG en_US.UTF-8
ENV TERM xterm
ENV TOMCAT_MAJOR_VERSION 8
ENV TOMCAT_MINOR_VERSION 8.5.70
ENV CATALINA_HOME /apps/tomcat
ENV APP_DIR ${CATALINA_HOME}/webapps
RUN mkdir /apps
ADD apache-tomcat-8.5.70.tar.gz /apps
RUN ln -s /apps/apache-tomcat-8.5.70 /apps/tomcat
EXPOSE 8080 8009
ENTRYPOINT ["/apps/tomcat/bin/catalina.sh","run"]
构建基于alpine-JDK的tomcat镜像
[root@docker tomcat]# docker build -t tomcat-base:v8.5.70 .
[root@docker tomcat]# docker images tomcat-base
REPOSITORY TAG IMAGE ID CREATED SIZE
tomcat-base v8.5.70 1ac959e3285a 6 minutes ago 613MB
创建tomcat容器
[root@docker tomcat]# docker run -d -p 8080:8080 tomcat-base:v8.5.70