INSTALLATION FAILED: cannot re-use a name that is still in use

helm install only creates - it will not adopt or overwrite an existing release, and release names are unique per namespace. You re-ran install for a name that is already there. Use helm upgrade [release] [chart] to change the existing release, or helm uninstall [release] first to start over. In CI, helm upgrade --install makes the step idempotent.

The error

Error: INSTALLATION FAILED: cannot re-use a name that is still in use

What to do

1. See the existing release:

helm list -n [namespace]

Expected: Shows the release with the same name.

1. To update it:

helm upgrade [release] [chart] -n [namespace]

Expected: Prints Release "[release]" has been upgraded.

1. To start over:

helm uninstall [release] -n [namespace]

then install again. Expected: Prints release "[release]" uninstalled, then install succeeds.

1. CI fix: switch the step to helm upgrade --install [release] [chart]

Expected: First run installs, later runs upgrade, no error.

When this applies

• the exact cannot re-use a name that is still in use message
• deploy pipelines that run helm install on every release
• re-running a tutorial install twice

When it does NOT apply

• UPGRADE FAILED errors (release exists but the operation failed)
• name collisions across namespaces (names are per-namespace, so that works)

Works with

helm 3.x

Error: INSTALLATION FAILED: cannot re-use a name that is still in use (in another namespace)

Names are unique per namespace, so this only happens within one namespace. Check -n / --namespace.

Why it happens

Helm tracks releases as secrets in the namespace; install refuses to touch an existing release record to avoid silently adopting someone else's release.

Edge cases

• A release stuck in pending-install also blocks the name - uninstall it before reinstalling.
• helm list -a shows failed and pending releases that helm list hides.

Resolved from

gh:opscanopy/opscanopy.com (mission90 day-075) - https://github.com/opscanopy/opscanopy.com/blob/HEAD/src/content/mission90/day-075.md