Question: How to set NodeSelector for agent plane resources using helm chart?

[nosmolovskiy]

I want to run agent plane(subscriber, event-tracker, litmus-operator-ce, workflow-controller) resources on particular nodes.
I found that these resources can be executed with node selector(litmuschaos/litmus) but cant get how to do it using chart.
Do someone can help?

[imrajdas]

You can't install an agent plane using a helm chart. Agents can be installed using litmusctl and you can pass the --node-selector flag while creating the agent.

Ref- https://github.com/litmuschaos/litmusctl/blob/master/Usage.md

[nosmolovskiy]

@rajdas98 thanks for answer.
After login to portal I see that Self-Agent was installed to cluster.
Is it possible set NodeSelector for subscriber, chaos-operator-ce, chaos-exporter and workflow-controller which were installed as
Self-Agent using helm chart?

[imrajdas]

for self-agent, node-selector flag is not present.

You can disconnect the self-agent and reconnect it using litmusctl(with --node-selector flag).

[nosmolovskiy]

thanks @rajdas98

[sthomson-wyn]

For future readers, this appears to now be possible declaratively via litmuschaos/litmus#3527

[emmahsax]

@sthomson-wyn You mentioned node selectors and tolerations can be declaratively added. Can you explain what you mean? Is there a way for me to set the tolerations, node selectors, and resources via helm?

I see mention of the chaos-exporter, chaos-operator, subscriber, etc here: https://github.com/litmuschaos/litmus-helm/tree/master/charts/litmus-agent#requirements. Is that helm command how I set these values, or do I need to use litmusctl? Are there any docs around how to set those three values (tolerations, node selectors, resources) on the agent plane resources?