# kubectl create secret docker-registry 命令详解
创建与 Docker registries 一起使用的 secret。
Dockercfg secrets 用于对 Docker registries 进行安全认证。
当使用 Docker 命令 push 镜像时，可以进行 Docker registries 认证
$ docker login DOCKER_REGISTRY_SERVER --username=DOCKER_USER --password=DOCKER_PASSWORD --email=DOCKER_EMAIL'.
这时会产生一个 ~/.dockercfg 文件，在“docker push”和“docker pull”命令时，此文件用于 registries 进行认证。
在创建应用时，当 Node 节点从私有仓库 Pull 镜像时，需要有相应凭证，才能使用私有 Docker 仓库。我们可以通过创建 dockercfg secret 并添加到 service account 来实现。
# 语法
$ docker-registry NAME --docker-username=user --docker-password=password --docker-email=email [--docker-server=string] [--from-literal=key1=value1] [--dry-run]
# 示例
如果没有.dockercfg 文件，则可以使用以下命令创建 dockercfg secret：
kubectl create secret docker-registry my-secret --docker-server=DOCKER_REGISTRY_SERVER --docker-username=DOCKER_USER --docker-password=DOCKER_PASSWORD --docker-email=DOCKER_EMAIL
# Flags
| Name | Shorthand | Default | Usage |
|---|---|---|---|
| allow-missing-template-keys | true | If true, ignore any errors in templates when a field or map key is missing in the template. Only applies to golang and jsonpath output formats. | |
| docker-email | Email for Docker registry | ||
| docker-password | Password for Docker registry authentication | ||
| docker-server | Server location for Docker registry | ||
| docker-username | Username for Docker registry authentication | ||
| dry-run | false | If true, only print the object that would be sent, without sending it. | |
| generator | secret-for-docker-registry/v1 | The name of the API generator to use. | |
| include-extended-apis | true | If true, include definitions of new APIs via calls to the API server. [default true] | |
| no-headers | false | When using the default or custom-column output format, don't print headers (default print headers). | |
| output | o | Output format. One of: json|yaml|wide|name|custom-columns=...|custom-columns-file=...|go-template=...|go-template-file=...|jsonpath=...|jsonpath-file=... | |
| output-version | DEPRECATED: To use a specific API version, fully-qualify the resource, version, and group (for example: 'jobs.v1.batch/myjob'). | ||
| save-config | false | If true, the configuration of current object will be saved in its annotation. Otherwise, the annotation will be unchanged. This flag is useful when you want to perform kubectl apply on this object in the future. | |
| schema-cache-dir | ~/.kube/schema | If non-empty, load/store cached API schemas in this directory, default is '$HOME/.kube/schema' | |
| show-all | a | false | When printing, show all resources (default hide terminated pods.) |
| show-labels | false | When printing, show all labels as the last column (default hide labels column) | |
| sort-by | If non-empty, sort list types using this field specification. The field specification is expressed as a JSONPath expression (e.g. '{.metadata.name}'). The field in the API resource specified by this JSONPath expression must be an integer or a string. | ||
| template | Template string or path to template file to use when -o=go-template, -o=go-template-file. The template format is golang templates . | ||
| validate | true | If true, use a schema to validate the input before sending it |