Docker---使用Dockerfile构建sshd、systemctl、nginx、tomcat、mysql镜像

最新推荐文章于 2025-03-25 10:27:20 发布

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最新推荐文章于 2025-03-25 10:27:20 发布

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文章标签： docker docker镜像 Dockerfile构建镜像

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本文链接：https://blog.youkuaiyun.com/weixin_48190860/article/details/109609363

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这里写目录标题

一：使用Dockerfile构建镜像

一：使用Dockerfile构建镜像

1.1：构建SSHD镜像

[root@docker ~]# mkdir /sshd
[root@docker ~]# cd /sshd
[root@docker sshd]# vim Dockerfile
[root@docker ~]# mkdir /sshd
[root@docker ~]# cd /sshd
[root@docker sshd]# vim Dockerfile
FROM centos:7	'//指定基础镜像'
MAINTAINER wukong	'//描述信息'
RUN yum -y update	'//更新容器yum源'
RUN yum -y install openssh* net-tools lsof telnet passwd	'//部署环境工具'
RUN echo "123123" | passwd --stdin root	'//设置root登录密码'
RUN sed -i 's/UsePAM yes/UsePAM no/g' /etc/ssh/sshd_config	'//禁用ssh中的pam验证'
RUN ssh-keygen -t rsa -f /etc/ssh/ssh_host_rsa_key	'//创建非对称密钥，并指定文件路径'
RUN sed -i '/^session\s\+required\s\+pam_loginuid.so/ s/^/#/' /etc/pam.d/sshd	'//禁用pam的ssh的pam会话模块'
RUN mkdir -p /root/.ssh && chown root.root /root && chmod 700 /root/.ssh	'//创建ssh工作目录和权限设置'
EXPOSE 22	'//开放22端口'
CMD ["/usr/sbin/sshd","-D"]   	'//容器加载时启动sshd服务'

生成镜像

[root@docker sshd]# docker build -t sshd:new .  '//注意有个.'
[root@docker ssh]# docker ps -a 
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                                           NAMES
7106a9ff92a6        sshd:new            "/usr/sbin/sshd -D"      2 hours ago         Up 2 hours          0.0.0.0:32772->22/tcp                           youthful_lumiere

启动容器

docker run -d -P sshd:new

测试登陆

ssh localhosh -p 32772

1.2：构建systemctl镜像

基于SSHD镜像继续构建

[root@docker ~]# mkdir /systemctl
[root@docker ~]# cd /systemctl
[root@docker systemctl]# vim Dockerfile
FROM sshd:test
MAINTAINER built image systemctl <tang>
ENV container docker	'//设置环境变量，container和docker'
RUN yum install -y vim
RUN (cd /lib/systemd/system/sysinit.target.wants/; for i in *;do [ $i == \
systemd-tmpfiles-setup.service ] || rm -f $i; done); \	'//执行先到指定目录，进行for循环遍历目录下所有文件并删除指定的文件。之后进行一系列的删除'
rm -f /lib/systemd/system/multi-user.target.wants/*; \
rm -f /etc/systemd/system/*.wants/*; \
rm -f /lib/systemd/system/local-fs.target.wants/*; \
rm -f /lib/systemd/system/sockets.target.wants/*udev*; \
rm -f /lib/systemd/system/sockets.target.wants/initctl*; \
rm -f /lib/systemd/system/basic.target.wants/*; \
rm -f /lib/systemd/system/anaconda.target.wants/*;
VOLUME [ "/sys/fs/cgroup" ]	'//创建一个挂在卷'
CMD ["/usr/sbin/init"]	'//init指执行初始化'

生成镜像

[root@docker systemctl]# docker build -t systemd:new .
[root@docker systemctl]# docker ps -a 
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                                           NAMES
9d9150c7f37a        systemd:new         "/sbin/init"             About an hour ago   Up About an hour    22/tcp                                          cranky_allen

创建容器

[root@docker systemctl]# docker run --privileged -it --name systemd -v /sys/fs/cgroup:/sys/fs/cgroup:ro systemd:new sbin/init 
    '//–privateged 使container内的root拥有真正的root权限，不进行降权处理。否则，container内的用户只是外部的一个普通用户'

进入容器

[root@docker ~]# docker exec -it systemd /bin/bash
[root@9d9150c7f37a /]# systemctl status sshd
● sshd.service - OpenSSH server daemon
   Loaded: loaded (/usr/lib/systemd/system/sshd.service; disabled; vendor preset: enabled)
   Active: inactive (dead)
     Docs: man:sshd(8)
           man:sshd_config(5)
[root@9d9150c7f37a /]# systemctl start sshd

1.3：构建nginx镜像

[root@docker ~]# mkdir /nginx
[root@docker ~]# cd /nginx/
[root@docker nginx]# vim Dockerfile
FROM centos:7
MAINTAINER this is nginx image <zhang>
RUN yum -y update
RUN yum -y install pcre-devel zlib-devel gcc gcc-c++ make
RUN useradd -M -s /sbin/nologin nginx
ADD nginx-1.12.2.tar.gz /usr/local/src
WORKDIR /usr/local/src
WORKDIR nginx-1.12.2
RUN ./configure \
--prefix=/usr/local/nginx \
--user=nginx \
--group=nginx \
--with-http_stub_status_module && make && make install
ENV PATH /usr/local/nginx/sbin:$PATH
EXPOSE 80
EXPOSE 443
RUN echo "daemon off;">>/usr/local/nginx/conf/nginx.conf
ADD run.sh /run.sh
RUN chmod 755 /run.sh
CMD ["/run.sh"]

编写启动脚本

[root@docker nginx]# vim run.sh
#!/bin/bash
/usr/local/nginx/sbin/nginx

生成镜像

[root@docker nginx]# docker build -t nginx:new .

创建容器

[root@docker nginx]# docker run -d -P nginx:new

查看容器状态

[root@docker ssh]# docker ps -a 
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                                           NAMES
cc4cae9d50be        nginx:new           "/run.sh"                35 minutes ago      Up 35 minutes       0.0.0.0:32774->80/tcp, 0.0.0.0:32773->443/tcp   jolly_lederberg

网页测试

1.4：构建tomcat镜像

创建目录并编写Dockerfile文件，上传相关文件

[root@docker ~]# mkdir /tomcat
[root@docker ~]# cd /tomcat/
[root@docker tomcat]# vim Dockerfile
FROM centos:7
MAINTAINER this is tomcat image <chen>
ADD jdk-8u144-linux-x64.tar.gz /usr/local
WORKDIR /usr/local
RUN mv jdk1.8.0_144 /usr/local/java
ENV JAVA_HOME /usr/local/java
ENV JAVA_BIN /usr/local/java/bin
ENV JRE_HOME /usr/local/java/jre
ENV PATH $PATH:/usr/local/java/bin:/usr/local/java/jre/bin
ENV CLASSPATH /usr/local/java/jre/bin:/usr/local/java/lib:/usr/local/java/jre/lib/charsets.jar
ADD apache-tomcat-8.5.23.tar.gz /usr/local
WORKDIR /usr/local/
RUN mv apache-tomcat-8.5.23 /usr/local/tomcat8
EXPOSE 8080
#CMD ["/usr/local/tomcat8/bin/catalina.sh","run"]
ENTRYPOINT  ["/usr/local/tomcat8/bin/catalina.sh","run"]

生成镜像

root@docker tomcat]# docker build -t tomcat:centos .

创建容器

[root@docker tomcat]# docker run -d --name tomcat01 -p 326:8080 tomcat:centos
[root@docker ssh]# docker ps -a 
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                                           NAMES
d8ef3892dd5d        tomcat:centos       "/usr/local/tomcat8/…"   11 minutes ago      Up 11 minutes       0.0.0.0:326->8080/tcp                           tomcat01

网页测试

1.5：构建mysql镜像

创建目录并编写Dockerfile文件，上传相关文件

MySQL版本为5.7（mysql-boost-5.7.20.tar.gz）

[root@docker ~]# mkdir mysql
[root@docker ~]#cd mysql
[root@docker mysql]# vi Dockerfile
FROM centos:7
MAINTAINER build image mysqld   <tang>
EXPOSE 3306
ADD mysql-boost-5.7.20.tar.gz /usr/local/src
WORKDIR /usr/local/src/mysql-5.7.20
RUN useradd mysql -M -s /sbin/nologin
RUN yum -y install gcc \
gcc-c++ \
make \
ncurses \
ncurses-devel \
bison \
cmake
RUN cmake \
-DCMAKE_INSTALL_PREFIX=/usr/local/mysql \
-DMYSQL_UNIX_ADDR=/usr/local/mysql/mysql.sock \
-DSYSCONFDIR=/etc \
-DSYSTEMD_PID_DIR=/usr/local/mysql \
-DDEFAULT_CHARSET=utf8 \
-DDEFAULT_COLLATION=utf8_general_ci \
-DWITH_INNOBASE_STORAGE_ENGINE=1 \
-DWITH_ARCHIVE_STORAGE_ENGINE=1 \
-DWITH_BLACKHOLE_STORAGE_ENGINE=1 \
-DWITH_PERFSCHEMA_STORAGE_ENGINE=1 \
-DMYSQL_DATADIR=/usr/local/mysql/data \
-DWITH_BOOST=boost \
-DWITH_SYSTEMD=1
RUN make -j3 && make install
RUN chown -R mysql:mysql /usr/local/mysql/
RUN rm -rf /etc/my.cnf
ADD my.cnf /etc/my.cnf
RUN chown mysql:mysql /etc/my.cnf
ENV PATH $PATH:/usr/local/mysql/bin:/usr/local/mysql/lib
RUN /usr/local/mysql/bin/mysqld \
--initialize-insecure \
--user=mysql \
--basedir=/usr/local/mysql \
--datadir=/usr/local/mysql/data
RUN cp /usr/local/mysql/usr/lib/systemd/system/mysqld.service /lib/systemd/system/
RUN echo -e "#!/bin/sh \nsystemctl enable mysqld" > /run.sh
RUN chmod 755 /run.sh
RUN sh /run.sh
CMD ["init"]

编写配置文件

[root@docker mysql]# vi my.cnf 
[client]
port = 3306
default-character-set=utf8
socket = /usr/local/mysql/mysql.sock

[mysql]
port = 3306
default-character-set=utf8
socket = /usr/local/mysql/mysql.sock

[mysqld]
user = mysql
basedir = /usr/local/mysql
datadir = /usr/local/mysql/data
port = 3306
character_set_server=utf8
pid-file = /usr/local/mysql/mysqld.pid
socket = /usr/local/mysql/mysql.sock
server-id = 1

sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_AUTO_VALUE_ON_ZERO,NO_ZERO_IN_DATE,NO_ZERO_D
ATE,ERROR_FOR_DIVISION_BY_ZERO,PIPES_AS_CONCAT,ANSI_QUOTES

生成镜像

[root@docker mysql]# docker build -t mysql:test	.'//构建MySQL5.7，编译时间较久，需要耐心等待一下'
'//docker system prune  清除docker缓存命令'

创建容器

[root@docker mysql]# docker run -d -P --privileged mysql:test
[root@ct ~]# docker ps -a
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS                    PORTS                                            NAMES
2bed4471244b        mysql:test          "init"                   10 seconds ago        Up 10 seconds               0.0.0.0:32775->22/tcp, 0.0.0.0:32774->3306/tcp   mysqld
[root@ct ~]# docker exec -it 2bed4471244b /bin/bash
[root@2bed4471244b /]# mysql -uroot -p
mysql> grant all privileges on *.* to 'root'@'%' identified by '123123';
mysql> grant all privileges on *.* to 'root'@'localhost' identified by '123123';

在宿主机系统中安装mairadb客户端连接mysql容器

[root@docker mysql]# yum -y install mariadb*

测试

[root@docker ~]# mysql -h 20.0.0.111 -uroot -p123123 -P 32769
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MySQL connection id is 3
Server version: 5.7.20 Source distribution

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MySQL [(none)]>

OK！成功连接