docker镜像制作_03
一、docker镜像制作
1.1、获取centos镜像
docker pull centos
1.2、查看镜像
[root@docker ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE docker.io/nginx latest cd5239a0906a 10 days ago 109 MB docker.io/centos latest 49f7960eb7e4 11 days ago 200 MB docker.io/alpine latest 3fd9065eaf02 5 months ago 4.15 MB
1.3、进入容器安装wget
[root@docker ~]# docker run -it centos bash [root@f8988cf8bfda /]# cd [root@f8988cf8bfda ~]# ls anaconda-ks.cfg #进入yum源目录 [root@f8988cf8bfda ~]# cd /etc/yum.repos.d/ [root@f8988cf8bfda yum.repos.d]# ls CentOS-Base.repo CentOS-Debuginfo.repo CentOS-Sources.repo CentOS-fasttrack.repo CentOS-CR.repo CentOS-Media.repo CentOS-Vault.repo #安装wget [root@f8988cf8bfda yum.repos.d]# yum install wget -y Loaded plugins: fastestmirror, ovl Determining fastest mirrors * base: mirrors.cqu.edu.cn * extras: mirrors.163.com * updates: free.nchc.org.tw base | 3.6 kB 00:00:00 extras | 3.4 kB 00:00:00 updates | 3.4 kB 00:00:00 (1/4): base/7/x86_64/group_gz | 166 kB 00:00:00 (2/4): base/7/x86_64/primary_db | 5.9 MB 00:00:02 (3/4): updates/7/x86_64/primary_db | 2.7 MB 00:00:05 (4/4): extras/7/x86_64/primary_db | 149 kB 00:00:10 Resolving Dependencies --> Running transaction check ---> Package wget.x86_64 0:1.14-15.el7_4.1 will be installed --> Finished Dependency Resolution Dependencies Resolved =================================================================================================== Package Arch Version Repository Size =================================================================================================== Installing: wget x86_64 1.14-15.el7_4.1 base 547 k Transaction Summary =================================================================================================== Install 1 Package Total download size: 547 k Installed size: 2.0 M Downloading packages: warning: /var/cache/yum/x86_64/7/base/packages/wget-1.14-15.el7_4.1.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID f4a80eb5: NOKEY Public key for wget-1.14-15.el7_4.1.x86_64.rpm is not installed wget-1.14-15.el7_4.1.x86_64.rpm | 547 kB 00:00:00 Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7 Importing GPG key 0xF4A80EB5: Userid : "CentOS-7 Key (CentOS 7 Official Signing Key) <security@centos.org>" Fingerprint: 6341 ab27 53d7 8a78 a7c2 7bb1 24c6 a8a7 f4a8 0eb5 Package : centos-release-7-5.1804.el7.centos.2.x86_64 (@Updates) From : /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7 Running transaction check Running transaction test Transaction test succeeded Running transaction Installing : wget-1.14-15.el7_4.1.x86_64 1/1 install-info: No such file or directory for /usr/share/info/wget.info.gz Verifying : wget-1.14-15.el7_4.1.x86_64 1/1 Installed: wget.x86_64 0:1.14-15.el7_4.1 Complete!
1.4、更新容器yum源
#更改yum源 cd /etc/yum.repos.d/ mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo #重新缓存 yum clean all yum makecache
1.5、安装常用软件
yum install wget net-tools vim lrzsz screen lsof tcpdump nc mtr nmap -y
1.6、安装nginx
[root@f8988cf8bfda ~]# yum install nginx -y #编程nginx配置文件，添加参数：daemon off; （备注：关闭在后台运行） [root@f8988cf8bfda ~]# vim /etc/nginx/nginx.conf user nginx; daemon off; worker_processes auto; error_log /var/log/nginx/error.log; pid /run/nginx.pid; #保存退出 #检查语法 [root@f8988cf8bfda ~]# nginx -t nginx: the configuration file /etc/nginx/nginx.conf syntax is ok nginx: configuration file /etc/nginx/nginx.conf test is successful #运行nginx（按ctrl+c结束） [root@f8988cf8bfda ~]# nginx
[root@f8988cf8bfda ~]#exit
1.7、查看commit 帮助
[root@docker ~]# docker commit --help
Usage: docker commit [OPTIONS] CONTAINER [REPOSITORY[:TAG]]
Create a new image from a container's changes
Options:
-a, --author string Author (e.g., "John Hannibal Smith <hannibal@a-team.com>")
-c, --change list Apply Dockerfile instruction to the created image (default [])
--help Print usage
-m, --message string Commit message
-p, --pause Pause container during commit (default true)
中文：
OPTIONS说明：
-a :提交的镜像作者；
-c :使用Dockerfile指令来创建镜像；
-m :提交时的说明文字；
-p :在commit时，将容器暂停。
1.8、docker commit :从容器创建一个新的镜像。
#查看镜像
[root@docker ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
f8988cf8bfda centos "bash" 24 minutes ago Exited (127) 2 minutes ago upbeat_ardinghelli
#从容器创建一个新镜像，
[root@docker ~]# docker commit -m 'add nginx images' upbeat_ardinghelli nulige/my_nginx
sha256:bfffb39862505e40b411641ad732f84ea1803d63423518b22661b6a4bb34c6a0
#查看镜像
[root@docker ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
nulige/my_nginx latest bfffb3986250 17 seconds ago 807 MB #安装nginx镜像
docker.io/centos latest 49f7960eb7e4 11 days ago 200 MB #官网原版镜像
[root@docker ~]#
#生成打tab号镜像，参数：':v1' (备注：用他来区分版本)
docker commit -m 'add nginx images' upbeat_ardinghelli nulige/my_nginx:v1
#查看镜像
[root@docker ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
nulige/my_nginx v1 ba1b100081ee About a minute ago 807 MB
nulige/my_nginx latest bfffb3986250 7 minutes ago 807 MB
docker.io/nginx latest cd5239a0906a 10 days ago 109 MB
docker.io/centos latest 49f7960eb7e4 11 days ago 200 MB
docker.io/alpine latest 3fd9065eaf02 5 months ago 4.15 MB
1.9、登录hub.docker官网
https://hub.docker.com/
注册需要先FQ，才能注册成功，因为要点验证码。邮箱可以填：*****@163.com (备注：验证可用。)
用户名：nulige
密码：l*********
2.0、在linux系统中，登录上传制作好的镜像
[root@docker ~]# docker login https://hub.docker.com
Username: nulige
Password:
Login Succeeded
[root@docker ~]# ls
anaconda-ks.cfg docker_init.sh
[root@docker ~]# cd .docker/
[root@docker .docker]# ls
config.json
[root@docker .docker]# cat config.json
{
"auths": {
"hub.docker.com": {
"auth": "bnVsaWdlOmxlbm92b2U0Mg=="
}
}
}[root@docker .docker]# pwd
/root/.docker
2.1、搜索别人的镜像
#名称来源于：docker hub
[root@docker ~]# docker search aclstack/mysql INDEX NAME DESCRIPTION STARS OFFICIAL AUTOMATED docker.io docker.io/mysql MySQL is a widely used, open-source relati... 6386 [OK] docker.io docker.io/mariadb MariaDB is a community-developed fork of M... 2011 [OK] docker.io docker.io/mysql/mysql-server Optimized MySQL Server Docker images. Crea... 462 [OK] docker.io docker.io/percona Percona Server is a fork of the MySQL rela... 343 [OK] docker.io docker.io/zabbix/zabbix-server-mysql Zabbix Server with MySQL database support 103 [OK] docker.io docker.io/hypriot/rpi-mysql RPi-compatible Docker Image with Mysql 87 docker.io docker.io/centurylink/mysql Image containing mysql. Optimized to be li... 60 [OK] docker.io docker.io/zabbix/zabbix-web-nginx-mysql Zabbix frontend based on Nginx web-server ... 54 [OK] docker.io docker.io/1and1internet/ubuntu-16-nginx-php-phpmyadmin-mysql-5 ubuntu-16-nginx-php-phpmyadmin-mysql-5 36 [OK] docker.io docker.io/tutum/mysql Base docker image to run a MySQL database ... 32 docker.io docker.io/mysql/mysql-cluster Experimental MySQL Cluster Docker images. ... 29 docker.io docker.io/centos/mysql-57-centos7 MySQL 5.7 SQL database server 28 docker.io docker.io/schickling/mysql-backup-s3 Backup MySQL to S3 (supports periodic back... 19 [OK] docker.io docker.io/bitnami/mysql Bitnami MySQL Docker Image 15 [OK] docker.io docker.io/linuxserver/mysql A Mysql container, brought to you by Linux... 14 docker.io docker.io/zabbix/zabbix-proxy-mysql Zabbix proxy with MySQL database support 13 [OK] docker.io docker.io/centos/mysql-56-centos7 MySQL 5.6 SQL database server 8 docker.io docker.io/openshift/mysql-55-centos7 DEPRECATED: A Centos7 based MySQL v5.5 ima... 6 docker.io docker.io/circleci/mysql MySQL is a widely used, open-source relati... 5 docker.io docker.io/mysql/mysql-router MySQL Router provides transparent routing ... 2 docker.io docker.io/openzipkin/zipkin-mysql Mirror of https://quay.io/repository/openz... 1 docker.io docker.io/aclstack/mysql 0 docker.io docker.io/ansibleplaybookbundle/mysql-apb An APB which deploys RHSCL MySQL 0 [OK] docker.io docker.io/cloudfoundry/cf-mysql-ci Image used in CI of cf-mysql-release 0 docker.io docker.io/cloudposse/mysql Improved `mysql` service with support for ... 0 [OK]
#上传镜像四步
2.2、docker 进程有时候容易死机，解决方法: linux supervisor
