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

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

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

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:

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

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

Apply the change to the apigee-datastore chart:

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