OpenShift Command Line Tools: Difference between revisions
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=Overview= | =Overview= | ||
User may interact with OpenShift by sending REST API invocations into an OpenShift master. Project-related queries and administrative commands may be sent with [[oc]]. Special administrative commands related to core OpenShift services, may be sent with [[oadm]] | User may interact with OpenShift by sending REST API invocations into an OpenShift master. Project-related queries and administrative commands may be sent with [[oc]]. Special administrative commands related to core OpenShift services, may be sent with [[oadm]]. | ||
=Configuration= | =Configuration= | ||
The tool configuration is maintained in user's [[.kube | The tool configuration is maintained in user's [[.kube config|~/<''user''>/.kube/config]]. | ||
=State= | =State= | ||
Both [[oc]] and [[oadm]] maintain state on the client host, under ~/<''user''>/.kube/<''cluster-identifier''> directories, and configuration in [[.kube | Both [[oc]] and [[oadm]] maintain state on the client host, under ~/<''user''>/.kube/<''cluster-identifier''> directories, and configuration in [[.kube config|~/<''user''>/.kube/config]]. Example: | ||
~ovidiu/.kube/master.openshift.novaordis.io_443 | ~ovidiu/.kube/master.openshift.novaordis.io_443 | ||
=Context= | =Context= | ||
{{Internal|.kube_config#Contexts|.kube/config Context}} | |||
=Namespace Selection= | |||
By default, oc selects objects from the [[OpenShift_Concepts#Current_Project|current project]], which is the project oc commands apply to, without to explicitly having to use the -n <project-name> qualifier. The current project is part of the CLI tool's [[#Context|current context]], maintained in user's [[.kube config|.kube/config]]. To switch to a different current project, use: | |||
[[oc project|oc project ''<new-current-project>'']] | |||
for both [[oc]] and [[oadm]]. | |||
Latest revision as of 01:08, 20 November 2020
Internal
Overview
User may interact with OpenShift by sending REST API invocations into an OpenShift master. Project-related queries and administrative commands may be sent with oc. Special administrative commands related to core OpenShift services, may be sent with oadm.
Configuration
The tool configuration is maintained in user's ~/<user>/.kube/config.
State
Both oc and oadm maintain state on the client host, under ~/<user>/.kube/<cluster-identifier> directories, and configuration in ~/<user>/.kube/config. Example:
~ovidiu/.kube/master.openshift.novaordis.io_443
Context
Namespace Selection
By default, oc selects objects from the current project, which is the project oc commands apply to, without to explicitly having to use the -n <project-name> qualifier. The current project is part of the CLI tool's current context, maintained in user's .kube/config. To switch to a different current project, use:
oc project <new-current-project>