第 3 章 Logging in to the cluster
You can log in to your cluster as a default system user by exporting the cluster kubeconfig file. The kubeconfig file contains information about the cluster that is used by the CLI to connect a client to the correct cluster and API server. The file is specific to a cluster and is created during OpenShift Container Platform installation.
Prerequisites
- Deploy an OpenShift Container Platform cluster.
-
Install the
ocCLI.
Procedure
Export the
kubeadmincredentials:$ export KUBECONFIG=<installation_directory>/auth/kubeconfig 1- 1
- For
<installation_directory>, specify the path to the directory that you stored the installation files in.
Verify you can run
occommands successfully using the exported configuration:$ oc whoami
Example output
system:admin
3.1. Verifying cluster status
You can verify your OpenShift Container Platform cluster’s status during or after installation.
Procedure
In the cluster environment, export the administrator’s kubeconfig file:
$ export KUBECONFIG=<installation_directory>/auth/kubeconfig 1- 1
- For
<installation_directory>, specify the path to the directory that you stored the installation files in.
The
kubeconfigfile contains information about the cluster that is used by the CLI to connect a client to the correct cluster and API server.View the control plane and compute machines created after a deployment:
$ oc get nodes
View your cluster’s version:
$ oc get clusterversion
View your Operators' status:
$ oc get clusteroperator
View all running pods in the cluster:
$ oc get pods -A
Troubleshooting
If the installation fails, the installation program times out and displays an error message. To learn more, see Troubleshooting installation issues.
