容器编排技术 -- Kubernetes kubectl create secret docker-registry 命令详解

 

• 1 kubectl create secret docker-registry
• 2 语法
• 3 示例
• 4 Flags

kubectl create secret docker-registry

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		https://index.docker.io/v1/	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=... See custom columns [http://kubernetes.io/docs/user-guide/kubectl-overview/#custom-columns], golang template [http://golang.org/pkg/text/template/#pkg-overview] and jsonpath template [http://kubernetes.io/docs/user-guide/jsonpath].
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 [http://golang.org/pkg/text/template/#pkg-overview].
validate		true	If true, use a schema to validate the input before sending it