標(biāo)記(Tag),推送(Push),拉取(Pull)你自己的鏡像

關(guān)平藏書 2019-01-22

展開全文

第一步: 標(biāo)記和推送鏡像

If you don’t already have a terminal open, open one now:

打開Launchpad并定位到Docker Quickstart Terminal圖標(biāo).
點擊Docker Quickstart Terminal圖標(biāo), 打開一個窗口.
將光標(biāo)定位到Docker Quickstart Terminal窗口

輸入docker images命令來查看當(dāng)前的鏡像列表:

$ docker images
REPOSITORY           TAG          IMAGE ID            CREATED             VIRTUAL SIZE
docker-whale         latest       7d9495d03763        38 minutes ago      273.7 MB
<none>               <none>       5dac217f722c        45 minutes ago      273.7 MB
docker/whalesay      latest       fb434121fc77        4 hours ago         247 MB
hello-world          latest       91c95931e552        5 weeks ago         910 B

找到docker-whale鏡像的image id

在這個例子中, id是7d9495d03763

值得注意的是, Hub庫顯示的是庫的名稱而不是命名空間. 對于Docker Hub將docker-whale鏡像與Docker Hub帳戶相關(guān)聯(lián)后, 你需要為它重命名為YOUR_DOCKERHUB_USERNAME/docker-whale. 您的帳戶名稱會在Docker Hub中顯示鏡像的命名空間. 你會在下一步標(biāo)記鏡像中做到這一點.
使用IMAGE ID和docker tag命令來標(biāo)記docker-whale鏡像.

命令看來起來像這樣子:

當(dāng)然你的賬戶名稱應(yīng)該是你自己的, 所以, 你要在這個命令中使用自己的賬戶名稱和鏡像ID, 然后按回車.

$ docker tag 7d9495d03763 maryatdocker/docker-whale:latest

再次輸入docker images命令來查看當(dāng)前的鏡像列表:

$ docker images
REPOSITORY           TAG          IMAGE ID            CREATED             VIRTUAL SIZE
docker-whale         latest       7d9495d03763        38 minutes ago      273.7 MB
<none>               <none>       5dac217f722c        45 minutes ago      273.7 MB
docker/whalesay      latest       fb434121fc77        4 hours ago         247 MB
hello-world          latest       91c95931e552        5 weeks ago         910 B

使用docker login命令從命令行登陸Docker Hub

登陸命令的格式是這樣的:

docker login --username=yourhubusername --email=youremail@company.com

當(dāng)命令返回響應(yīng)是, 輸入你的密碼并按回車, 所以, 像這樣:
```
$ docker login --username=maryatdocker --email=mary@docker.com
Password:
WARNING: login credentials saved in C:\Users\sven\.docker\config.json
Login Succeeded
```

輸入docker push命令來推送你的鏡像到Hub庫

$ docker push maryatdocker/docker-whale
The push refers to a repository [maryatdocker/docker-whale] (len: 1)
7d9495d03763: Image already exists
c81071adeeb5: Image successfully pushed
eb06e47a01d2: Image successfully pushed
fb434121fc77: Image successfully pushed
5d5bd9951e26: Image successfully pushed
99da72cfe067: Image successfully pushed
1722f41ddcb5: Image successfully pushed
5b74edbcaa5b: Image successfully pushed
676c4a1897e6: Image successfully pushed
07f8e8c5e660: Image successfully pushed
37bea4ee0c81: Image successfully pushed
a82efea989f9: Image successfully pushed
e9e06b06e14c: Image successfully pushed
Digest: sha256:ad89e88beb7dc73bf55d456e2c600e0a39dd6c9500d7cd8d1025626c4b985011

返回你在Docker Hub的頁面查看你的新鏡像

第二步: 拉取新鏡像

在這最后一節(jié)，你會拉取你剛剛推送到Docker Hub上的鏡像。在此之前, 你需要從本地計算機中刪除原始鏡像. 如果你沒有刪除, Docker不會從Hub上拉取鏡像 - 為什么這樣呢？因為兩個圖像是相同的.

將光標(biāo)定位到Docker Quickstart Terminal窗口

輸入docker images來列出你當(dāng)前在本地的鏡像列表

    $ docker images
REPOSITORY                  TAG       IMAGE ID        CREATED          VIRTUAL SIZE
maryatdocker/docker-whale   latest    7d9495d03763    5 minutes ago    273.7 MB
docker-whale                latest    7d9495d03763    2 hours ago      273.7 MB
<none>                      <none>    5dac217f722c    5 hours ago      273.7 MB
docker/whalesay             latest    fb434121fc77    5 hours ago      247 MB
hello-world                 latest    91c95931e552    5 weeks ago      910 B

為了測試成功，你需要從本地系統(tǒng)中刪除了鯨和泊塢窗鯨圖像。刪除maryatdocker/docker-whale 和 docker-whale. 它們迫使下次使用docker pull時, Docker從Hub庫中獲取鏡像.

使用docker rmi刪除maryatdocker/docker-whale和docker-whale鏡像.

你可以使用鏡像ID或者名稱刪除
```
$ docker rmi -f 7d9495d03763
$ docker rmi -f docker-whale
```

使用docker run命令從你的Hub庫中拉取并加載新的鏡像

docker run yourusername/docker-whale

由于鏡像不再在本地系統(tǒng)上，Dokcer要下載它。

    $ docker run maryatdocker/docker-whale
Unable to find image 'maryatdocker/docker-whale:latest' locally
latest: Pulling from maryatdocker/docker-whale
eb06e47a01d2: Pull complete
c81071adeeb5: Pull complete
7d9495d03763: Already exists
e9e06b06e14c: Already exists
a82efea989f9: Already exists
37bea4ee0c81: Already exists
07f8e8c5e660: Already exists
676c4a1897e6: Already exists
5b74edbcaa5b: Already exists
1722f41ddcb5: Already exists
99da72cfe067: Already exists
5d5bd9951e26: Already exists
fb434121fc77: Already exists
Digest: sha256:ad89e88beb7dc73bf55d456e2c600e0a39dd6c9500d7cd8d1025626c4b985011
Status: Downloaded newer image for maryatdocker/docker-whale:latest
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| dog bounding toward him with the       |
| traditional keg of brandy strapped to  |
| his collar.                            |
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下一步去哪里

你已經(jīng)做了很多，你已經(jīng)做了所有的以下基本Docker任務(wù)。