docker

docker使用

周海汉 2017-06-09
2017-06-09

image

启动docker

[zhouhh@mainServer ~]$ sudo systemctl start docker
[zhouhh@mainServer ~]$ sudo systemctl enable docker

[zhouhh@mainServer ~]$ docker pull hub.c.163.com/public/centos:7.2-tools

网络配置

docker提供overlay和bridge两种网络模式驱动.

缺省的网络如下:

[zhouhh@mainServer ~]$ docker network ls
NETWORK ID          NAME                DRIVER              SCOPE
9c12b9cdd56c        bridge              bridge              local
ece62f2ec867        host                host                local
0c0d6c064361        none                null                local

如果不指定网络驱动类型, 缺省都是bridge模式.

桥接模式

加速器

使用 Docker 的时候，需要经常从官方获取镜像，但是由于显而易见的网络原因，拉取镜像的过程非常耗时，严重影响使用 Docker 的体验。因此 DaoCloud 推出了加速器工具解决这个难题，通过智能路由和缓存机制，极大提升了国内网络访问 Docker Hub 的速度，目前已经拥有了广泛的用户群体，并得到了 Docker 官方的大力推荐。

网易蜂巢也提供镜像下载

[zhouhh@mainServer ~]$ curl -sSL https://get.daocloud.io/daotools/set_mirror.sh | sh -s http://9bd9d1e3.m.daocloud.io
docker version >= 1.12
{"registry-mirrors": ["http://9bd9d1e3.m.daocloud.io"],
  "storage-driver": "devicemapper"
}
Success.
You need to restart docker to take effect: sudo systemctl restart docker

[zhouhh@mainServer ~]$ docker search redis
NAME                      DESCRIPTION                                     STARS     OFFICIAL   AUTOMATED
redis                     Redis is an open source key-value store th...   3819      [OK]
bitnami/redis             Bitnami Redis Docker Image                      49                   [OK]
torusware/speedus-redis   Always updated official Redis docker image...   32                   [OK]

[zhouhh@mainServer ~]$ docker pull redis
Using default tag: latest
latest: Pulling from library/redis
10a267c67f42: Downloading [==========>                                        ] 10.58 MB/52.58 MB

[zhouhh@mainServer ~]$ docker image ls
REPOSITORY                    TAG                 IMAGE ID            CREATED             SIZE
redis                         latest              a858478874d1        2 weeks ago         184 MB
hub.c.163.com/public/centos   7.2-tools           4a4618db62b9        3 months ago        515 MB
hello-world                   latest              48b5124b2768        4 months ago        1.84 kB
[zhouhh@mainServer ~]$ docker run redis
1:M 07 Jun 02:55:44.047 # Server started, Redis version 3.2.9
1:M 07 Jun 02:55:44.047 * The server is now ready to accept connections on port 6379


[zhouhh@mainServer redis]$ docker container ls
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS               NAMES
18635a66fa6f        redis               "docker-entrypoint..."   31 minutes ago      Up 31 minutes       6379/tcp            epic_darwin
[zhouhh@mainServer redis]$ docker container inspect 186
...
"Gateway": "172.17.0.1",
            "GlobalIPv6Address": "",
            "GlobalIPv6PrefixLen": 0,
            "IPAddress": "172.17.0.2",
            "IPPrefixLen": 16,
            "IPv6Gateway": "",
            "MacAddress": "02:42:ac:11:00:02",
            "Networks": {
                "bridge": {
                "Gateway": "172.17.0.1",
                    "IPAddress": "172.17.0.2",
...

[zhouhh@mainServer redis]$ redis-cli -h 172.17.0.2
172.17.0.2:6379> set test 'zhouhh'
OK
172.17.0.2:6379> get test
"zhouhh"

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