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Deployments → Exec

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Overview

This node interacts with Kubernetes clusters to perform various operations on Kubernetes resources, specifically supporting the 'Exec' operation for executing commands inside a container of a deployment. It is useful for scenarios where you need to run commands directly inside a container for debugging, maintenance, or automation purposes. For example, you can execute shell commands inside a container of a deployment to inspect logs, modify files, or run scripts without needing direct access to the Kubernetes cluster.

Use Case Examples

  1. Executing a shell command inside a container of a deployment to check application status.
  2. Running a diagnostic command inside a container to troubleshoot issues without redeploying.

Properties

Name Meaning
Image The container image to use, relevant for operations like run, restart, exec, and patch.
Namespace The Kubernetes namespace where the deployment resides.
Resource Name The name of the deployment resource to target.
Container Name The name of the container inside the deployment where the command will be executed.

Output

JSON

  • stdout - The standard output from the executed command inside the container.

Dependencies

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

Troubleshooting

  • Ensure Kubernetes credentials are correctly configured; missing credentials will cause errors.
  • Resource name is mandatory for the exec operation; omitting it will throw an error.
  • The command must be provided as an array; otherwise, an error is thrown.
  • Container name defaults to 'main-container' but must match an existing container in the deployment to avoid execution failures.

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