Chapter 38. PodTemplate schema reference
Used in: CruiseControlTemplate, EntityOperatorTemplate, JmxTransTemplate, KafkaBridgeTemplate, KafkaClusterTemplate, KafkaConnectTemplate, KafkaExporterTemplate, KafkaMirrorMakerTemplate, KafkaNodePoolTemplate, ZookeeperClusterTemplate
Full list of PodTemplate schema properties
Configures the template for Kafka pods.
Example PodTemplate configuration
# ...
template:
pod:
metadata:
labels:
label1: value1
annotations:
anno1: value1
imagePullSecrets:
- name: my-docker-credentials
securityContext:
runAsUser: 1000001
fsGroup: 0
terminationGracePeriodSeconds: 120
# ...
38.1. hostAliases
Use the hostAliases property to a specify a list of hosts and IP addresses, which are injected into the /etc/hosts file of the pod.
This configuration is especially useful for Kafka Connect or MirrorMaker when a connection outside of the cluster is also requested by users.
Example hostAliases configuration
apiVersion: kafka.strimzi.io/v1beta2
kind: KafkaConnect
#...
spec:
# ...
template:
pod:
hostAliases:
- ip: "192.168.1.86"
hostnames:
- "my-host-1"
- "my-host-2"
#...
38.2. PodTemplate schema properties
| Property | Property type | Description |
|---|---|---|
| metadata | Metadata applied to the resource. | |
| imagePullSecrets | LocalObjectReference array |
List of references to secrets in the same namespace to use for pulling any of the images used by this Pod. When the |
| securityContext | Configures pod-level security attributes and common container settings. | |
| terminationGracePeriodSeconds | integer | The grace period is the duration in seconds after the processes running in the pod are sent a termination signal, and the time when the processes are forcibly halted with a kill signal. Set this value to longer than the expected cleanup time for your process. Value must be a non-negative integer. A zero value indicates delete immediately. You might need to increase the grace period for very large Kafka clusters, so that the Kafka brokers have enough time to transfer their work to another broker before they are terminated. Defaults to 30 seconds. |
| affinity | The pod’s affinity rules. | |
| tolerations | Toleration array | The pod’s tolerations. |
| priorityClassName | string | The name of the priority class used to assign priority to the pods. |
| schedulerName | string |
The name of the scheduler used to dispatch this |
| hostAliases | HostAlias array | The pod’s HostAliases. HostAliases is an optional list of hosts and IPs that will be injected into the Pod’s hosts file if specified. |
| tmpDirSizeLimit | string |
Defines the total amount (for example |
| enableServiceLinks | boolean | Indicates whether information about services should be injected into Pod’s environment variables. |
| topologySpreadConstraints | TopologySpreadConstraint array | The pod’s topology spread constraints. |
