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Docker镜像制作
搭建私服
将本地镜像推送到私有库 Docker镜像制作
以创建一个新ubuntu镜像#xff0c;并安装vim命令示例
运行一个ubuntu镜像#xff0c;发现在镜像里面无法使用vim命令#xff0c;因为该ubuntu镜像只包括了其最基本的内核命令
[rootlocalhost ~]…目录
Docker镜像制作
搭建私服
将本地镜像推送到私有库 Docker镜像制作
以创建一个新ubuntu镜像并安装vim命令示例
运行一个ubuntu镜像发现在镜像里面无法使用vim命令因为该ubuntu镜像只包括了其最基本的内核命令
[rootlocalhost ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
ubuntu latest ba6acccedd29 2 years ago 72.8MB
[rootlocalhost ~]# docker run -it ba6acccedd29 /bin/bash
rootf1e088df465f:/# vim a.txt
bash: vim: command not found给ubuntu容器安装vim
rootf1e088df465f:/# apt-get update
rootf1e088df465f:/# apt-get -y install vim
安装完成之后就可以在容器里面使用vim编辑器进行文件的编辑了
rootf1e088df465f:/# vim a.txt
rootf1e088df465f:/# 将这个运行的容器制作成一个带有vim功能的ubuntu镜像 docker commit -m提交的描述信息 -a作者 容器ID 要创建的目标镜像名:[标签名] [rootlocalhost ~]# docker commit -madd vim -amgaw f1e088df465f linux1:1.00001
sha256:6eb1515df77a8a00c6ae3ff5c541f26a50fd585a4b67d321280612cef1f852e1查看镜像发现比原镜像大了很多 [rootlocalhost ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
linux1 1.00001 6eb1515df77a 31 seconds ago 189MB
ubuntu latest ba6acccedd29 2 years ago 72.8MB运行自己制作的镜像 [rootlocalhost ~]# docker run -it 6eb1515df77a /bin/bash
rootcc4ba90ce5d4:/# vim a.txt
rootcc4ba90ce5d4:/# 发现确实带有vim功能了 搭建私服 下载镜像Docker Registry [rootlocalhost ~]# docker pull registry运行私服库Registry相当于本地的私有Docker hub [rootlocalhost ~]# docker run -d -p 5000:5000 -v /mgaw/myregistry/:/tmp/registry --privilegedtrue registry
18d989f67ba7cab18d1654227bfb8aa4350d19b3e2d9f912302f1b19bc7d852e将本地镜像推送到私有库 以创建一个新ubuntu镜像并安装ifconfig命令示例 运行一个ubuntu镜像发现在镜像里面无法使用ifconfig命令因为该ubuntu镜像只包括了其最基本的内核命令 [rootlocalhost ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
ubuntu latest ba6acccedd29 2 years ago 72.8MB
[rootlocalhost ~]# docker run -it ba6acccedd29 /bin/bash
root32766e3fc651:/# ifconfig
bash: ifconfig: command not found给ubuntu容器安装ifconfig root32766e3fc651:/# apt-get update
root32766e3fc651:/# apt-get install net-tools
root32766e3fc651:/# ifconfig
eth0: flags4163UP,BROADCAST,RUNNING,MULTICAST mtu 1500inet 172.17.0.7 netmask 255.255.0.0 broadcast 172.17.255.255ether 02:42:ac:11:00:07 txqueuelen 0 (Ethernet)RX packets 9126 bytes 30122477 (30.1 MB)RX errors 0 dropped 0 overruns 0 frame 0TX packets 7207 bytes 395192 (395.1 KB)TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0lo: flags73UP,LOOPBACK,RUNNING mtu 65536inet 127.0.0.1 netmask 255.0.0.0loop txqueuelen 1000 (Local Loopback)RX packets 0 bytes 0 (0.0 B)RX errors 0 dropped 0 overruns 0 frame 0TX packets 0 bytes 0 (0.0 B)TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 将这个运行的容器制作成一个带有ifconfig功能的ubuntu镜像 [rootlocalhost ~]# docker commit -mifconfig -amgaw 32766e3fc651 ubuntu1:1.00002
sha256:120ca7640729ad7ca74912b3ca8f9f0dceedf7a798e39b59d122652907dd3a0e查看镜像发现比原镜像大了很多 [rootlocalhost ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
ubuntu1 1.00002 120ca7640729 47 seconds ago 122MB
ubuntu latest ba6acccedd29 2 years ago 72.8MB使用 curl 工具验证私服库上有什么镜像 [rootlocalhost ~]# curl -XGET http://192.168.117.131:5000/v2/_catalog
{repositories:[]}目前私服库没有镜像上传过 将新镜像 ubuntu1:1.00002 修改符合私服规范的 Tag 命令格式 docker tag 镜像:Tag Host:Port/Repository:Tag [rootlocalhost ~]# docker tag ubuntu1:1.00002 192.168.117.131:5000/ubuntu1:1.00002查看修改后的镜像 [rootlocalhost ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
ubuntu1 1.00002 120ca7640729 5 minutes ago 122MB
192.168.117.131:5000/ubuntu1 1.00002 120ca7640729 5 minutes ago 122MB
ubuntu latest ba6acccedd29 2 years ago 72.8MB修改 docker 配置文件使之支持 http vim /etc/docker/daemon.json 新增如下内容 insecure-registries: [192.168.117.131:5000] 最后的结果如下 重新启动docker并保证linux防火墙没有对5000端口拦截
[rootlocalhost ~]# systemctl restart docker由于重新启动了docker需要重新启动 docker registry 容器 [rootlocalhost ~]# docker run -d -p 5000:5000 -v /mgaw/myregistry/:/tmp/registry --privilegedtrue registry
bbef35a7bd2f80525932769666c320751565f7f01bf095f30bbfe30fc219b564推送镜像到私服
[rootlocalhost ~]# docker push 192.168.117.131:5000/ubuntu1:1.00002
The push refers to repository [192.168.117.131:5000/ubuntu1]
48d7d917047c: Pushed
9f54eef41275: Pushed
1.00002: digest: sha256:94872dd08e5e7d4c5921cb3581f8e01631f85a81a34e9dea83a28212ffb48593 size: 741
查看私服库上是否存在镜像
[rootlocalhost ~]# curl -XGET http://192.168.117.131:5000/v2/_catalog
{repositories:[ubuntu1]}从私服上拉取镜像
[rootlocalhost ~]# docker pull 192.168.117.131:5000/ubuntu1:1.00002
1.00002: Pulling from ubuntu1
Digest: sha256:94872dd08e5e7d4c5921cb3581f8e01631f85a81a34e9dea83a28212ffb48593
Status: Image is up to date for 192.168.117.131:5000/ubuntu1:1.00002
192.168.117.131:5000/ubuntu1:1.00002删除192.168.117.131:5000/ubuntu1镜像
[rootlocalhost ~]# docker rmi -f 120ca7640729
[rootlocalhost ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
linux1 1.00001 6eb1515df77a 48 minutes ago 189MB
ubuntu latest ba6acccedd29 2 years ago 72.8MB
[rootlocalhost ~]# docker pull 192.168.117.131:5000/ubuntu1:1.00002
1.00002: Pulling from ubuntu1
7b1a6ab2e44d: Already exists
0981e371e319: Pull complete
Digest: sha256:94872dd08e5e7d4c5921cb3581f8e01631f85a81a34e9dea83a28212ffb48593
Status: Downloaded newer image for 192.168.117.131:5000/ubuntu1:1.00002
192.168.117.131:5000/ubuntu1:1.00002再次查看镜像发现镜像成功拉取下来了
[rootlocalhost ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
192.168.117.131:5000/ubuntu1 1.00002 120ca7640729 19 minutes ago 122MB
linux1 1.00001 6eb1515df77a 49 minutes ago 189MB
ubuntu latest ba6acccedd29 2 years ago 72.8MB至此将本地镜像推送到私有库完成
