helm: Allow configuring agent memory

[marcofranssen]

No description provided.

[Copilot]

Pull request overview

Adds a configurable per-agent memory block (with enabled, ttlDays, and modelConfigRef) to every built-in agent subchart, exposes those same knobs at the top-level helm/kagent/values.yaml so users can override them, and introduces an .editorconfig for repo-wide formatting defaults.

Changes:

• Add memory.enabled / memory.ttlDays / memory.modelConfigRef to each agent's values.yaml and render a corresponding memory: block in each agent's templates/agent.yaml when enabled.
• Surface the same modelConfigRef and memory.* fields per agent in the top-level helm/kagent/values.yaml.
• Add a root .editorconfig and minor whitespace/style cleanup.

Reviewed changes

Copilot reviewed 22 out of 22 changed files in this pull request and generated 2 comments.

File	Description
helm/kagent/values.yaml	Adds modelConfigRef/memory blocks for each agent; contains a duplicated memory: key and an inconsistent ~ value under kgateway-agent.
helm/agents/{k8s,kgateway,istio,promql,observability,argo-rollouts,helm,cilium-policy,cilium-manager,cilium-debug}/values.yaml	Introduce memory defaults (enabled: false, ttlDays: 15, modelConfigRef: "").
helm/agents/{...}/templates/agent.yaml	Conditionally render memory.modelConfig and memory.ttlDays under spec.declarative when memory.enabled is true.
.editorconfig	New repo-wide formatting rules (LF, UTF-8, 2-space indent, trim trailing whitespace).

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[EItanya]

@mesutoezdil here's another example.

#1849 (comment)

[marcofranssen]

@mesutoezdil here's another example.

#1849 (comment)

#1849 (comment)

I think we are about to break helm best practices again if we go that route. Similar like I recently fixed to be able to pass through per agent settings in my earlier PR.

This is really the way to pass through values to subcharts.

One example of a chart that does this correctly is the spire helm chart(s). Please let's not break the pattern again.

global is another pattern that allows global defaults. Usually used for e.g. image registry. And usually that is used combined with post component ways of overriding.

Even though there is duplication like this it makes the helm charts usable as individual components. Which is actually great as it allows people to make their own composite charts for their own specific usecases.

[marcofranssen]

Fixed the DCO just now.

[EItanya]

Can we please remove this from the PR. If we want an .editorconfig let's leave that in a separate PR where we can discuss it

[mesutoezdil]

2 issues need to be fixed.

required argument order is wrong in all 10 templates

The Helm required function signature is required "message" .value, but every template has the arguments swapped:

# current (broken)
modelConfig: {{ required .modelConfigRef "A compatible modelConfig must be provided when memory is enabled" }}

# should be
modelConfig: {{ required "A compatible modelConfig must be provided when memory is enabled" .modelConfigRef }}

With the arguments flipped, required treats the literal string as the value and .modelConfigRef as the error message.

An empty modelConfigRef will silently render the error string as the field value instead of failing at template render time.

This affects all 10 agent templates.

Trailing blank lines in argo-rollouts/templates/agent.yaml

The diff adds 6 empty lines at the end of the file.

Also agree with EItanya that .editorconfig belongs in a separate PR.