---
title: Argo CD Upgrade to v3.1.2 Causes OpenTelemetryCollector to Remain in Progressing State
description: Health Check
---

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# Argo CD Upgrade to v3.1.2 Causes OpenTelemetryCollector to Remain in Progressing State

## Upgrading from Argo CD v3.0.x to v3.1.2 caused  OpenTelemetryCollector resource status issue due to health check logic

When upgrading Argo CD from **v3.0.x to v3.1.2**, the deployment enters a continuous **Progressing** state and never reports **Healthy**, despite the application working normally.

This issue specifically affects **resources using OpenTelemetryCollector** in **sidecar mode**, due to changes introduced in Argo CD’s **default health check logic**.

Rolling back to `v3.0.15` resolves the problem.

- In **v3.1.2**, Argo CD introduced new health checks for OpenTelemetryCollector.
- The health check expects the following field to be populated by the controller:
  
  `status.scale.statusReplicas`
- In this case, the **otel controller is not populating this field**, especially when the **mode is set to `sidecar`**.
- Since the required field is missing, Argo CD cannot determine that the resource is healthy.

To resolve this as a workaround, override the Argo CD **default health check** to force the resource into a healthy state.

**Add the following to the Argo CD instance `resource.customizations`:**

`hs = {}`  
`hs.status = "Healthy"`  
`return hs`

This bypasses the health evaluation for the affected resource.

> Use this only as a temporary measure if immediate resolution is needed.

In the instance configuration (via UI or declaratively), under `argocdConfigMap → resource.customizations`:

`resource.customizations: |`  
`  "opentelemetry.io/OpenTelemetryCollector":`  
`    health.lua: |`  
`      hs = {}`  
`      hs.status = "Healthy"`  
`      return hs`

### References:

- Argo CD v3.1.x Health Check Enhancements
- OpenTelemetry Operator documentation

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