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Overview

The cpln workload exec command lets you execute a specific command followed by custom arguments in a workload replica at a specific location.

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Prerequisites

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Options

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Required

  • --
    • Command to execute on replica (e.g., echo hello world).

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Optional

  • --stdin, -i
    • Pass stdin to the container. Default: false.
  • --tty, -t
    • Stdin is a TTY. Default: false.
  • --quiet, -q
    • Only print output from the remote session. Default: false.
  • --location
    • The location associated with the workload deployment (e.g., aws-us-west-1). Defaults to the first location fetched from the specified GVC. When specifying, make sure that the specified location is part of the specified GVC.
  • --replica
    • The replica name associated with the workload deployment. Defaults to the first replica.
  • --container
    • The container name associated with the workload deployment. Defaults to the first container.

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Basic Usage

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Retrieve Workload Deployments

cpln workload get-deployments WORKLOAD_NAME
This command lists available locations. Identify the location name from the output.

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Usage

Example usage: 
cpln workload exec WORKLOAD_NAME --location LOCATION -- COMMAND ARG1 ARG2

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Advanced Usage

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Specific Replica

In cases where you have more than one replica in a workload deployment and you would like to execute a command in one of them, you can provide the --replica option followed by the replicas name.

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List Replicas

cpln workload replica get WORKLOAD_NAME --location LOCATION
To override the output format, use the --output option followed by the desired format (YAML, JSON, etc.).

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Execute Within a Specific Replica

Example usage: 
cpln workload exec WORKLOAD_NAME --location LOCATION --replica REPLICA_NAME -- COMMAND ARG1 ARG2

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Specific Container

Within a workload where numerous containers are configured, regardless if a container is handling traffic or functioning as a sidecar, it is feasible to execute a command to it by using the --container option. Example usage: 
cpln workload exec WORKLOAD_NAME --location LOCATION --container CONTAINER_NAME -- COMMAND ARG1 ARG2

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Sending Stdin

To send stdin to a command executed within a workload, use the -i or --stdin option. Example usage: 
cpln workload exec WORKLOAD_NAME -i --location LOCATION --container CONTAINER_NAME -- COMMAND ARG1 ARG2

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Starting an Interactive Session

To start an interactive session using the exec command, combine the -i and -t options (or use -it). This allows you to run a shell command within a container interactively. Example usage: 
cpln workload exec WORKLOAD_NAME -it -- /bin/bash