私有仓库建立
建立私有仓库的步骤
(1)下载registry镜像，在字符终端
(2)客户端设置daemon.json文件，指定私有仓库位置
(3)生成registry容器，开放5000端口
(4)镜像打标签：docker tag 原镜像名 仓库IP:端口/镜像名（一定要打标签）
(5)上传镜像：docker push 仓库IP:端口/镜像名
(6)下载镜像：docker pull 仓库IP:端口/镜像名（使用docker images查看）
建立私有仓库
[root@docker ~]# docker pull registry
[root@docker ~]# vim /etc/docker/daemon.json
{
"insecure-registries": ["192.168.7.168:5000"], //不同参数选项之间使用","相隔
"registry-mirrors": ["https://syy5204b.mirror.aliyuncs.com"]
}
[root@docker ~]# systemctl restart docker
[root@docker ~]# docker run -d -p 5000:5000 -v /data/registry:/tpm/registry registry
#宿主机中的/data/registry会自动创建挂载容器中的/tpm/registry
[root@docker ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
4e3029f01510 registry "/entrypoint.sh /etc…" 4 seconds ago Up 4 seconds 0.0.0.0:5000->5000/tcp eager_northcutt
[root@docker ~]# docker pull nginx
[root@docker ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
nginx latest e791337790a6 About an hour ago 127MB
[root@docker ~]# docker tag nginx:latest 192.168.7.168:5000/nginx
[root@docker ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
192.168.7.168:5000/nginx latest e791337790a6 2 hours ago 127MB
[root@docker ~]# docker push 192.168.7.168:5000/nginx
#获取私有仓库的列表
curl -XGET http://192.168.7.168:5000/v2/_catalog
{"repositories":["nginx"]}
[root@docker ~]# docker rmi 192.168.7.168:5000/nginx:latest
[root@docker ~]# docker pull 192.168.7.168:5000/nginx
Using default tag: latest
latest: Pulling from nginx
Digest: sha256:6b3b6c113f98e901a8b1473dee4c268cf37e93d72bc0a01e57c65b4ab99e58ee
Status: Downloaded newer image for 192.168.7.168:5000/nginx:latest
192.168.7.168:5000/nginx:latest
[root@docker ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
192.168.7.168:5000/nginx latest e791337790a6 2 hours ago 127MBDocker数据卷
docker数据卷是通过挂载宿主系统的存储空间
[root@docker ~]# docker pull centos
#宿主机目录/var/www/挂载容器中的/data1
#这些目录不需要自己手动创建，系统会自动创建
[root@docker ~]# docker run -v /var/www:/data1 --name test1 -it centos /bin/bash
[root@3ea73938c9b5 /]# cd /data1/
[root@3ea73938c9b5 data1]# touch test123
#返回宿主机进行查看
[root@docker ~]# ls /var/www/
test123Docker数据卷容器
挂载容器的存储空间
#创建数据卷容器
[root@docker ~]# docker run --name web100 -v /data1 -v /data2 -it centos /bin/bash
[root@44c8fbe8e01a /]# ls
bin data2 etc lib lost+found mnt proc run srv tmp var
data1 dev home lib64 media opt root sbin sys usr
#新容器挂载数据卷容器web100
[root@docker ~]# docker run -it --volumes-from web100 --name db1 centos /bin/bash
[root@9b0b7f686192 /]# ls
bin data2 etc lib lost+found mnt proc run srv tmp var
data1 dev home lib64 media opt root sbin sys usr
#在新容器创建文件，到数据卷容器可以查看到相同的内容端口映射
#不指定端口
[root@docker ~]# docker run -d -P nginx
[root@docker ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
6dd91cea1325 nginx "nginx -g 'daemon of…" 4 seconds ago Up 4 seconds 0.0.0.0:1234->80/tcp eager_mclean
#指定端口
[root@docker ~]# docker run -d -p 1234:80 nginx
[root@docker ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
fd952499c2c5 nginx "nginx -g 'daemon of…" 8 seconds ago Up 7 seconds 0.0.0.0:32768->80/tcp infallible_beaver- -P：指定随机映射端口
- -p：在固定的IP地址映射
容器互联（使用centos镜像）#创建并运行容器取名web1，端口号自动映射 [root@docker ~]# docker run -itd -P --name web1 centos /bin/bash #创建并运行容器取名web2，关联web1 [root@docker ~]# docker run -itd -P --name web2 --link web1:web1 centos /bin/bash #在web2可以直接ping通web1 [root@docker ~]# docker exec -it 3c0d72923de3 /bin/bash [root@3c0d72923de3 /]# ping web1 PING web1 (172.17.0.5) 56(84) bytes of data. 64 bytes from web1 (172.17.0.5): icmp_seq=1 ttl=64 time=0.200 ms 64 bytes from web1 (172.17.0.5): icmp_seq=2 ttl=64 time=0.110 ms