Upgrading Scylla Operator

Upgrading Scylla Operator¶

Scylla Operator supports N+1 upgrades only. That means to you can only update by 1 minor version at the time and wait for it to successfully roll out and then update all ScyllaClusters that also run using the image that’s being updated. (Scylla Operator injects it as a sidecar to help run and manage ScyllaDB.)

We value the stability of our APIs and all API changes are backwards compatible.

Caution

If any additional steps are required for a specific version upgrade, they will be documented in the Upgrade steps for specific versions section below.

Upgrade via GitOps (kubectl)¶

A typical upgrade flow using GitOps (kubectl) requires re-applying the manifests using ones from the release you want to upgrade to. Note that Scylla Operator’s dependencies also need to be updated to the versions compatible with the target Scylla Operator version.

Please refer to the GitOps installation instructions for details.

Upgrade via Helm¶

Prerequisites¶

Update Scylla Operator dependencies to the versions compatible with the target Scylla Operator version. Refer to the Helm installation instructions for details.

Make sure Helm chart repository is up-to-date:

helm repo add scylla https://scylla-operator-charts.storage.googleapis.com/stable
helm repo update

Upgrade ScyllaDB Manager¶

Replace <release_name> with the name of your Helm release for ScyllaDB Manager and replace <version> with the version number you want to install:

helm upgrade --version <version> <release_name> scylla/scylla-manager

Upgrade Scylla Operator¶

Replace <release_name> with the name of your Helm release for Scylla Operator and replace <version> with the version number you want to install:

Update CRD resources. We recommend using --server-side flag for kubectl apply, if your version supports it.

tmpdir=$( mktemp -d ) \
  && helm pull scylla-operator/scylla-operator --version <version> --untar --untardir "${tmpdir}" \
  && find "${tmpdir}"/scylla-operator/crds/ -name '*.yaml' -printf '-f=%p ' \
  | xargs kubectl apply

Update Scylla Operator.

helm upgrade --version <version> <release_name> scylla/scylla-operator

Upgrade steps for specific versions¶

Caution

The below instructions are supplementary to the standard upgrade procedure and don’t fully replace it. Make sure to familiarize yourself with both the standard upgrade procedure and the additional steps for the specific version you are upgrading to, if applicable, and follow them accordingly.

1.17 to 1.18¶

Upgrading from v1.17.x requires extra actions due to the removal of the standalone ScyllaDB Manager controller. The controller becomes an integral part of Scylla Operator. As a result, the standalone ScyllaDB Manager controller deployment and its related resources need to be removed before upgrading Scylla Operator.

Upgrade via GitOps (kubectl)¶

kubectl delete -n scylla-manager \
    clusterrole/scylladb:controller:aggregate-to-manager-controller \
    clusterrole/scylladb:controller:manager-controller \
    poddisruptionbudgets.policy/scylla-manager-controller \
    serviceaccounts/scylla-manager-controller \
    clusterrolebindings.rbac.authorization.k8s.io/scylladb:controller:manager-controller \
    deployments.apps/scylla-manager-controller

Upgrade via Helm¶

ScyllaDB Manager Helm installation has to be upgraded before upgrading Scylla Operator Helm installation, following the standard Helm upgrade procedure. This will ensure that the ScyllaDB Manager Controller is removed before upgrading the Scylla Operator.

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