![]() ![]() Contribute to peterjoao82/Workshop1 development by creating an account on GitHub. 3Container Creation Process 4Controlling container auto-start 5Controlling Your Application docker, storage types: bind, volume, tmpfs and use cases. Ephemeral volume types have a lifetime of a pod, but persistent volumes exist beyond … A Docker volume is a directory on disk or in another container. The restored deployment on the destination cluster will have the same name, namespace, topology and credentials as the original deployment on the source cluster.Docker volume types 2.Both clusters are on the same Kubernetes provider, as this is a requirement of Velero's native support for migrating persistent volumes.The Kubernetes provider is supported by Velero.This method involves copying the persistent data volumes for the etcd nodes and reusing them in a new deployment with Velero, an open source Kubernetes backup/restore tool. Method 2: Back up and restore persistent data volumes If the cluster permanently loses more than (N-1)/2 members, it tries to recover the cluster from a previous snapshot. NOTE: VMware Application Catalog's etcd Helm chart also supports auto disaster recovery by periodically snapshotting the keyspace. Here is an example of what you should see: Kubectl exec -it $POD_NAME - etcdctl -user root:PASSWORD get /message2 Kubectl exec -it $POD_NAME - etcdctl -user root:PASSWORD get /message1 helm install etcd REPOSITORY/etcd \Įxport POD_NAME=$(kubectl get pods -namespace default -l "/name=etcd,/instance=etcd" -o jsonpath="") Replace the REPOSITORY placeholder with a reference to your VMware Application Catalog chart repository. Example command sequences to perform these tasks are shown below, where the PASSWORD placeholder refers to the etcd administrator password. ![]() You have previously deployed the VMware Application Catalog etcd Helm chart on the source cluster and added some data to it. You have configured Helm to use the VMware Application Catalog chart repository following the instructions for VMware Application Catalog or the instructions for VMware Application Catalog for Tanzu Advanced. Learn how to install kubectl and Helm v3.x. This guide uses Google Kubernetes Engine (GKE) clusters but you can also use any other Kubernetes provider. You have two separate Kubernetes clusters - a source cluster and a destination cluster - with kubectl and Helm v3 installed. This guide makes the following assumptions: Back up the persistent volumes from the source deployment and attach them to a new deployment using Velero, a Kubernetes backup/restore tool.Back up the data from the source deployment and restore it in a new deployment using etcd's built-in backup/restore tools.This guide walks you through two different approaches you can follow when backing up and restoring VMware Application Catalog etcd Helm chart deployments on Kubernetes: Data backup and restore procedures are also important for other scenarios, such as off-site data migration/data analysis or application load testing. It is critical to protect this data, by backing it up regularly and ensuring that it can be easily restored as needed. Of course, the true business value of an etcd cluster comes not from the cluster itself, but from the data that resides within it. This Helm chart is compliant with current best practices and is suitable for use in production environments, with built-in features for role-based access control (RBAC), horizontal scaling, disaster recovery and TLS. VMware Application Catalog offers an etcd Helm chart that enables quick and easy deployment of an etcd cluster on Kubernetes. It offers a simple interface for reading and writing data and is available under an open source license. Backup and Restore Etcd Deployments on Kubernetes IntroductionĮtcd is a reliable and efficient key-value store, most commonly used for data storage in distributed systems. ![]()
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