Prerrequisites
- Openshift API connectivity
The plugin must be able to reach the API remotely in order to extract the information.
- Obtaining Bearer token
It can be obtained with the following CLI command, after logging in with this one:
./oc whoami -t-
The openshift user account must have cluster-reader permissions.
The cli commands to add permissions are as follows (these must be given from a privileged account)
Add a role to a user :
oc adm policy add-role-to-user <role> <user_name>Remove a role from a user :
oc adm policy remove-role-from-user <role> <user_name>Add a role to a user for all projects:
oc adm policy add-cluster-role-to-user <role> <user_name>Remove a user role for all projects:
oc adm policy remove-cluster-role-from-user <role> <user_name>Example :
- The cluster-monitoring option must be activated.
This can be done with the following command :
./crc config set enable-cluster-monitoring trueExample:
To be able to have enabled a minimum of 14 gb is requested, so if we have configured the environment with less, and we activate the cluster-monitoring option we will have to add more to the machine, the minimum is 14336 in mb.
- This file can be applied directly to configure the necessary permissions.
oc apply -f https://github.com/kubernetes-sigs/metrics-server/releases/download/v0.4.1/components.yaml- You need to run this apiservice: v1beta1.metrics.k8s.io and the metrics server.
oc get apiservice- Tiene que estar activada la opción cluster-monitoring
The command to specify the memory is :
./crc config set memory 14336Example:
