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文字
描述
创建标记指源的图像的目标图像
用法
docker tag SOURCE_IMAGE[:TAG] TARGET_IMAGE[:TAG]
父命令
命令 | 描述 |
|---|---|
docker | Docker CLI的基本命令。 |
扩展描述
图像名称由斜杠分隔的名称组件组成，可以选择以注册表主机名作为前缀。主机名必须符合标准DNS规则，但可能不包含下划线。如果存在主机名，则可以选择后面跟着格式的端口号。:8080如果不存在，则该命令使用位于registry-1.docker.io默认情况下。名称组件可以包含小写字母、数字和分隔符。分隔符定义为句点、一个或两个下划线或一个或多个破折号。名称组件可能不会以分隔符开始或结束。
标签名必须是有效的ASCII，可以包含小写和大写字母、数字、下划线、句点和破折号。标签名不能以句点或破折号开头，最多可以包含128个字符。
您可以使用名称和标记将图像组合在一起，然后将它们上传到通过存储库共享图像...
实例
标记ID引用的图像
要将ID为“0e5574283393”的本地映像标记到带有“Version1.0”的“fedora”存储库中：
$ docker tag 0e5574283393 fedora/httpd:version1.0
标记按名称引用的图像
要将名为“httpd”的本地映像标记到带有“Version1.0”的“fedora”存储库中，请执行以下操作：
$ docker tag httpd fedora/httpd:version1.0
请注意，由于未指定标记名，因此为现有的本地版本创建别名。httpd:latest...
标记由名称和标记引用的图像
要将名为“httpd”的本地映像标记为“test”，将“fedora”存储库标记为“version1.0.test”：
$ docker tag httpd:test fedora/httpd:version1.0.test
为私有存储库标记图像
若要将图像推送到专用注册表，而不是中央码头注册中心，则必须将其标记为注册表主机名和端口（如果需要)。
$ docker tag 0e5574283393 myregistryhost:5000/fedora/httpd:version1.0