Can Two Instances of the Same App Share a ClusterRole in Kubernetes?

You might look into the Helm chart's options to see if you can namespace the resources by adding unique prefixes for each instance. Alternatively, using Kustomize could allow you to customize the manifests to avoid these clashes while keeping your GitOps workflow intact.

Yes, two apps can technically share the same ClusterRole, but it's not recommended. Typically, you'll want to create separate ServiceAccounts for each app and bind them to their respective roles. This way, each app can manage its permissions without conflicts. ArgoCD is warning you because it detects multiple resources trying to manage the same role, which can lead to unpredictable behavior.

While you can run two separate Alloy instances for logs and metrics, it's worth considering whether it's necessary. Many setups work well with a single instance for both functions, which simplifies management and might cover your needs without resource sharing conflicts.

It's definitely possible to share roles, but it might create issues down the line, especially with permission management. It’s better practice to give each application its own role, which allows you to manage permissions cleanly. If both apps need access to the same permissions in the ClusterRole, you might consider creating a specific ClusterRoleBinding that references both namespaces.