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Execute in pod

Author: Llandy Riveron Del Risco

Utility to execute a command in a pod container.

Usage

Execute a command inside a pod container.

load('ext://execute_in_pod', 'execute_in_pod')

command = execute_in_pod('pod_name', 'echo "Echoing inside the container!"')

# execute it with a local_resource depending on the pod you want to run it on
local_resource(
    name='run_something',
    cmd=command,
    resource_deps=['YOUR_POD_TO_RUN_COMMANDS'],
)

Given the pod_name it will check that the discovery exists, it will find the pod name and execute the command inside of it. If multiple pods are found for a given pod_name it will execute the command only on the first one.

It is possible to chain commands together if you need to execute many.

load('ext://execute_in_pod', 'execute_in_pod')

to_execute = [
    execute_in_pod('pod_name', 'echo 1'),
    execute_in_pod('pod_name', 'echo 2'),
    execute_in_pod('pod_name', 'echo 3'),
]

commands = '&& '.join(to_execute)

local_resource(
    name='init',
    cmd=commands,
    resource_deps=['YOUR_POD_TO_RUN_COMMANDS'],
)
Parameters

NOTE: currently in work as there are some issues, so only thee pod_name & command parameters will work.

execute_in_pod(pod_name, command, container=None, quiet=True, echo_off=False)
  • pod_name ( str ) – the name of the workload that will be used to retrieve pod names.
  • command ( str ) – the actual command that will be executed inside of the pod container.
  • container ( str ) – If specified, will run the command inside that container. If not, it will run on the default one.
  • quiet ( bool ) – local function quiet boolean. By default command output won't be logged.
  • echo_off ( off ) – local function echo_off boolean. By default we do log the commands run.