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KubeDB Upgrade Manual
This tutorial will show you how to upgrade KubeDB from previous version to 0.11.0.
Before You Begin
At first, you need to have a Kubernetes cluster, and the kubectl command-line tool must be configured to communicate with your cluster. If you do not already have a cluster, you can create one by using kind.
Now, install KubeDB 0.9.0 cli on your workstation and KubeDB operator in your cluster following the steps here.
Previous operator
In this tutorial we are using helm to install kubedb 0.9.0 release. But, user can install kubedb operator from script too.
$ helm repo add appscode https://charts.appscode.com/stable/
$ helm repo update
# Step 1: Install kubedb operator chart
$ helm install appscode/kubedb --name kubedb-operator --version 0.9.0 \
--namespace kube-system
# Step 2: wait until crds are registered
$ kubectl get crds -l app=kubedb -w
NAME AGE
dormantdatabases.kubedb.com 6s
elasticsearches.kubedb.com 12s
elasticsearchversions.kubedb.com 8s
etcds.kubedb.com 8s
etcdversions.kubedb.com 8s
memcacheds.kubedb.com 6s
memcachedversions.kubedb.com 6s
mongodbs.kubedb.com 7s
mongodbversions.kubedb.com 6s
mysqls.kubedb.com 7s
mysqlversions.kubedb.com 7s
postgreses.kubedb.com 8s
postgresversions.kubedb.com 7s
redises.kubedb.com 6s
redisversions.kubedb.com 6s
snapshots.kubedb.com 6s
# Step 3(a): Install KubeDB catalog of database versions
$ helm install appscode/kubedb-catalog --name kubedb-catalog --version 0.9.0 \
--namespace kube-system
# Step 3(b): Or, if previously installed, upgrade KubeDB catalog of database versions
$ helm upgrade kubedb-catalog appscode/kubedb-catalog --version 0.9.0 \
--namespace kube-system
$ helm ls
NAME REVISION UPDATED STATUS CHART APP VERSION NAMESPACE
kubedb-catalog 1 Fri Feb 8 11:21:34 2019 DEPLOYED kubedb-catalog-0.9.0 0.9.0 kube-system
kubedb-operator 1 Fri Feb 8 11:18:46 2019 DEPLOYED kubedb-0.9.0 0.9.0 kube-system
Upgrade kubedb-operator
For helm, upgrade command works fine.
$ helm upgrade --install kubedb-operator appscode/kubedb --version 0.11.0 --namespace kube-system
$ helm upgrade --install kubedb-catalog appscode/kubedb-catalog --version 0.11.0 --namespace kube-system
$ helm ls
NAME REVISION UPDATED STATUS CHART APP VERSION NAMESPACE
kubedb-catalog 2 Fri Feb 8 12:12:45 2019 DEPLOYED kubedb-catalog-0.11.0 0.11.0 kube-system
kubedb-operator 2 Fri Feb 8 12:11:57 2019 DEPLOYED kubedb-0.11.0 0.11.0 kube-system
Upgrade CRD objects
Note that, if any server becomes stale for using deprecated PgBouncerVersion, upgrading to a non-deprecated PgBouncerVersion will solve the issue as kubedb-operator will update the Statefulsets too.
Next Steps
- Get started with PgBouncer using quickstart.
- Learn about custom PgBouncerVersions.
- Learn about private registry.
- Want to hack on KubeDB? Check our contribution guidelines.