Using Kubernetes Tolerations

To use the Taints and Tolerations feature of Kubernetes, you must define the tolerations override property for each Apigee hybrid component. The following components support defining tolerations:

• ao
• apigeeIngressGateway
• cassandra
• cassandraSchemaSetup
• cassandraSchemaValidation
• cassandraUserSetup
• connectAgent
• istiod
• logger
• mart
• metrics
• mintTaskScheduler
• redis
• runtime
• synchronizer
• udca
• Watcher

See the Configuration property reference for more information about these components.

Apply Tolerations to individual components by adding the tolerations: configuration properties in your overrides file and then upgrading the Helm chart for the component.

See the Apigee Helm charts reference for a list of which Helm charts manage each hybrid component.

For example, to apply the tolerations to the Apigee operator deployment

1. Add the tolerations: properties to ao: in your overrides file:

   ao:
     tolerations:
     - key: "key1"
       operator: "Equal"
       value: "value1"
       effect: "NoExecute"
       tolerationSeconds: 3600

2. Apply the change to the apigee-operator chart:

   helm upgrade operator apigee-operator/ \
     --install \
     --create-namespace \
     --namespace apigee-system \
     --atomic \
     -f overrides.yaml
   

To apply the tolerations to the Cassandra StatefulSet:

1. Add the tolerations: properties to cassandra: in your overrides file:

   cassandra:
     tolerations:
     - key: "key1"
       operator: "Equal"
       value: "value1"
       effect: "NoExecute"
       tolerationSeconds: 3600

2. Apply the change to the apigee-datastore chart:

   helm upgrade datastore apigee-datastore/ \
     --install \
     --create-namespace \
     --namespace  \
     --atomic \
     -f overrides.yaml