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Kubernetes

Interact with Kubernetes

Actions90

CronJobs → Run

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Overview

This node interacts with Kubernetes to perform various operations on Kubernetes resources, specifically supporting the 'Run' operation for CronJobs among others. It allows users to run a pod with a specified image, command, and environment variables within a given namespace and resource name. This is useful for automating Kubernetes job executions, testing containerized applications, or running batch jobs programmatically.

Use Case Examples

  1. Run a CronJob pod with a specific container image and command to automate scheduled tasks.
  2. Execute a command inside a Kubernetes pod to perform maintenance or data processing tasks.

Properties

Name Meaning
Image The container image to use for running the pod.
Command The command array to execute inside the pod.
Environment Variables Environment variables to set inside the pod.
Namespace The Kubernetes namespace where the pod or resource exists.
Resource Name The name of the Kubernetes resource (e.g., pod or CronJob) to run or operate on.

Output

JSON

  • stdout - The standard output from running the pod with the specified image, command, and environment variables.

Dependencies

  • Requires Kubernetes API credentials to authenticate and interact with the Kubernetes cluster.

Troubleshooting

  • Ensure the Kubernetes credentials are correctly configured and have sufficient permissions to run pods and access resources in the specified namespace.
  • Verify that the 'command' and 'env' inputs are valid JSON arrays; otherwise, the node will throw an error.
  • Resource name is mandatory for operations like run, restart, exec, and others; missing this will cause errors.
  • Check that the specified container image is accessible and valid in the Kubernetes environment to avoid pod creation failures.

Discussion