FEAT: support idleReplicaCount=0 rendering in Rollout Deployment KEDA template

[lokesh-devtron]

Type of change

• Bug fix

Description

Problem Statement

When kedaAutoscaling.idleReplicaCount is configured with the value 0, the generated KEDA ScaledObject does not render the idleReplicaCount field.

The existing Helm template uses the following condition:

{{- if $.Values.kedaAutoscaling.idleReplicaCount }}

Since Helm evaluates 0 as a false value, the condition fails and the field is omitted from the rendered manifest.

As a result, users cannot explicitly configure:

idleReplicaCount: 0

even when it is provided in the deployment template values.

Root Cause

The template checks the truthiness of the value instead of checking whether the value is defined.

Fix

Updated the template condition to explicitly check for nil:

{{- if ne $.Values.kedaAutoscaling.idleReplicaCount nil }}

This ensures that:

• idleReplicaCount: 0 is rendered correctly.
• Any non-zero value is also rendered.
• The field is omitted only when it is not configured.

Additionally, added the default idleReplicaCount: 0 in values.yaml for consistency.

Testing

• Updated the Rollout Deployment reference chart.
• Verified the rendered ScaledObject manifest includes:

idleReplicaCount: 0

when configured in values.

Impact

This change preserves existing behavior while correctly supporting explicit zero values for idleReplicaCount.

Summary by Bito

• Updated KEDA autoscaling template to correctly handle idleReplicaCount when set to 0 by checking for nil instead of truthiness.
• Added idleReplicaCount with a default value of 0 to the autoscaling configuration in values.yaml.

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

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