we realized that the database had a size about only 20kb (8MB before). Getting started Understand the default port configuration Obtain application and server credentials Understand the default configuration https://github.com/bitnami/charts/blob/master/bitnami/etcd/README.md, https://github.com/bitnami/charts/blob/master/bitnami/etcd/templates/statefulset.yaml#L131-L138, [bitnami/etcd] Major version: refactoring, https://github.com/bitnami/charts/tree/master/bitnami/etcd#to-600, https://github.com/bitnami/charts-docs/blob/main/charts/etcd/_understand_default_configuration.md.erb, [bitnami/etcd] Issue starting the cluster from startFromSnapshot, Initialize new cluster recovering an existing snapshot, We had a complete power outage in our data centre. Successfully merging a pull request may close this issue. I tried to create a volume with a nfs mount, which has my etcd backups, instead of creating a new volume and copying files into that, but etcd doesn't find the files. Latest Release Information Download Velero Disaster Recovery Reduces time to recovery in case of infrastructure loss, data corruption, and/or service outages. We just released a new major version of the etcd chart (6.0.0) including new features and introducing changes in the etcd that attempt to improve the stability of the chart on operations such as scaling or updating the etcd cluster, see the link: We also improve the docs, and create a specific section that explains details about how this chart works on operation such as bootstrapping or scaling (not available in the doc system yet), see. Sometimes the restore is working. Having now a reliable cluster trusted list of nodes, you can parse the output above to build the ETCD_INITIAL_CLUSTER list + add the new member hostname to it. Prerequisites To run this application you need Docker Engine >= 1.10.0. quorum gets messed-up). extensively documented, and like our other application formats, our containers are This would not only prevent remaining nodes to be re-created but it would also make it possible to scale properly using kubectl scale. Now, etcd makes use of these env vars only to start a new member after that member has been added to the existing cluster. If we take a look to the pod definition, we can see this: So basically it's mounting the "restore" PV at /init-snapshot. chart-1629734060-etcd-0.log. Since the container image is an immutable artifact . 3 EFS volumes are mounted, but only 2 member_id files have data -. privacy statement. Hi @haroonb , That's actually a very good point. Fabric FabricOverlay/UnderIPDPDKNetworkPolicyPod-security Fabric OverlayVxlanUnderlayIP 2. Scaling to 0, back to 3 got the -0 pod into a crashloop again. etcd is a distributed key-value store designed to securely store data across a cluster. The respective trademarks mentioned in the offering are owned by the respective companies, and use of them does not imply any affiliation or endorsement. While killing pods randomly, it all worked fine here. Then I proceeded to test again with a replicaCount of 3. `sleep infinity) and mount the PV on it. Getting started with Etcd packaged by Bitnami container, Bitnami's Best Practices for Securing and Hardening Helm Charts, Backup and Restore Apache Kafka Deployments on Kubernetes, Backup and Restore Cluster Data with Bitnami and Velero, Docker Compose is recommended with a version 1.6.0 or later. Although 2 nodes it's not ideal for consensus, you should be able to scale back to 3 nodes if the "member removal" command worked as expected. Hi all, we just created this issue bitnami/charts#7305 that is pinned in the Bitnami Helm Charts repository, on this way we can funnel all the conversation in a single place regarding ARM64 support. When restoring our etcd we have to keep the same deployment name (for connection strings and such), I have noticed when I try to restore a second time, upon helm delete etcd, my PVC for etcd-snapshotter is released, and will not be remounted, since a new PVC/PV for etcd-snapshotter is created.. Is this due to it being labelled as an "init-snapshot-volume" like so ->, init-snapshot-volume: Overview of Etcd Trademarks: This software listing is packaged by Bitnami. I don't fully understand what you mean with restoring it for a second time. Thanks in advance! Chart . Type: PersistentVolumeClaim (a reference to a PersistentVolumeClaim in the same namespace) In order to use custom configuration parameters, two options are available: Environment variables: etcd allows setting environment variables that map to configuration settings. Expected behavior Maybe you can find something interesting in this list. ETCD_INITIAL_CLUSTER changes from listing 5 node URLs to 3. Unfortunately we are not having success with this command. I am using Helm version 3.1.3, by the way. Launch in AWS Console. I have provided a RWX volume for the snapshotter that is mounted in all etcd pods, I have confirmed that it is mounted in my new test cluster. 1. Each Helm chart contains one or more containers. Sometimes we get these errors: The text was updated successfully, but these errors were encountered: Why are you manually restoring the snapshots? You've several options to launch a new Etcd packaged by Bitnami instance in Amazon Web Services: Launch in AWS Marketplace. To sum up, I might have got my cluster into a weird state when scaling down to 0 pods while one of the pods was still in a crashloop. Now it gets funny, the etcd cluster builds up fine and everything is ok until every-day at 5:00 am, at this time the 3rd member of the cluster is leaving the cluster, the second node just stays fine. I also tried building docker image based on mentioned PR - it does not generate an event that says that pre-stop failed when scaling down, but it does not help re-joining the cluster when scaling up unfortunately. ReadOnly: false ==> Initializing member by restoring etcd cluster from snapshot {"level":"info","ts":1594886235.8186045,"caller":"netutil/netutil.go:112","msg":"resolved URL Host","url":"http://etcd-0.etcd-headless.default.svc.cluster.local:2380","host":"etcd-0.etcd-headless.default.svc.cluster.local:2380","resolved-addr":"10.32.2.32:2380"}, {"level":"info","ts":1594886235.8188918,"caller":"netutil/netutil.go:112","msg":"resolved URL Host","url":"http://etcd-0.etcd-headless.default.svc.cluster.local:2380","host":"etcd-0.etcd-headless.default.svc.cluster.local:2380","resolved-addr":"10.32.2.32:2380"}, {"level":"info","ts":1594886235.8189979,"caller":"snapshot/v3_snapshot.go:296","msg":"restoring snapshot","path":"/init-snapshot/db-2020-07-16_07-40","wal-dir":"/bitnami/etcd/data/member/wal","data-dir":"/bitnami/etcd/data","snap-dir":"/bitnami/etcd/data/member/snap"}, {"level":"info","ts":1594886235.830253,"caller":"membership/cluster.go:392","msg":"added member","cluster-id":"9e98e654be1e22d7","local-member-id":"0","added-peer-id":"45a18acb10aa275e","added-peer-peer-urls":["http://etcd-2.etcd-headless.default.svc.cluster.local:2380"]}, helm install --set image.tag=3.4.9-debian-10-r46 -f values.yaml etcd bitnami/etcd \, --set startFromSnapshot.existingClaim=restore \, --set startFromSnapshot.snapshotFilename=db \, --set startFromSnapshot.snapshotFilename=db, Filesystem Size Used Avail Use% Mounted on, % /run/secrets/kubernetes.io/serviceaccount. Could you send a PR for that? Successfully merging a pull request may close this issue. Etcd , etcdadm etcd kubeadm, : join etcdadm etcd - (https://ywjsbang.com) etcdadm 1 Etcd packaged by Bitnami is pre-configured and ready-to-use immediately on any of the platforms below. Or is this something that etcd will change on its own? The INITIAL_CLUSTER_STATE shouldn't affect this kind of scaling operations and it should be possible to scale using kubectl scale --replicas=X statefulset/MY-RELEASE-etcd. The libetcd.sh script covers for "Detected data from previous deployments", but you're left at the mercy of etcd's ability to cope with old data. Amazon Web Services Public AMIs for Etcd packaged by Bitnami Trademarks: This software listing is packaged by Bitnami. Is there any workaround for this? etcd 10:44:26.03 INFO ==> Updating member in existing cluster Error: bad member ID arg (strconv.ParseUint: par. I mean, how many replicas did you have before and after scaling down? @juan131 Hi, I am using Bitnami/etcd Version 6.8.2 and I have a problem starting the cluster from startFromSnapshot, I uninstalled etcd and re-installed it using the above configurationBut the cluster cannot be recovered, I see you already opened a new issue in our bitnami/charts repository and someone from our team is giving you feedback already, let's move the conversation there . Those containers use images provided by Bitnami through its test & release pipeline and whose source code can be found at bitnami/containers.. As part of the container releases, the images are scanned for vulnerabilities, here you can find more info about this topic. The Bitnami etcd Helm chart supports automatic disaster recovery by periodically snapshotting the keyspace. Thanks for sharing your experience everyone! i have the same issue. helm repo add bitnami https://charts.bitnami.com/bitnami helm install my-release bitnami/etcd # Read more about the installation in the Etcd packaged by Bitnami Chart Github repository Prerequisites A Kubernetes 1.4+ cluster with Beta APIs enabled Helm installed in your cluster Helm CLI installed in your PC Launching On AKS bash Make the snapshot available in a Kubernetes PersistentVolumeClaim (PVC) that supports ReadWriteMany access (for example, a PVC created with the NFS storage class) I then ran into other issues with the livenessProbe, and the pod disruption not being set by default. Why does etcd not release this mount after a successful restore, so I can delete the pv,pvc. drwxr-xr-x 1 root root 4096 Jul 16 07:41 .. -rw------- 1 1001 root 20512 Jul 16 07:35 db-2020-07-16_07-35, -rw------- 1 1001 root 20512 Jul 16 07:40 db-2020-07-16_07-40, cp /original-snapshots/db-2020-07-16_07-40 /snapshots/, chown 1001 /snapshots/db-2020-07-16_07-40, krm pvc data-etcd-0 data-etcd-1 data-etcd-2, persistentvolumeclaim "data-etcd-0" deleted, persistentvolumeclaim "data-etcd-1" deleted, persistentvolumeclaim "data-etcd-2" deleted, helm install etcd bitnami/etcd --set statefulset.replicaCount=3 --set startFromSnapshot.enabled=true --set startFromSnapshot.existingClaim=snapshots --set startFromSnapshot.snapshotFilename=db-2020-07-16_07-40. Deploying Bitnami applications as containers is the best way to get the most from your infrastructure. helm Kuberneteschart. We periodically deploy changes via helm upgrade --install, and hence ETCD_INITIAL_CLUSTER_STATE also transitioned for us at some point from new to existing. helm install test -f etcd.yaml bitnami/etcd --set statefulset.replicaCount=3 --set persistence.enable=true --set persistence.size=8Gi --set startFromSnapshot.enabled=true --set startFromSnapshot.existingClaim=etcd-snapshotter --set startFromSnapshot.snapshotFilename=/snapshots/db-test. etcd is a distributed key-value store designed to securely store data across a cluster. In addition we have a debug-environment in our network. I guess my question would be simpler when I word it like this: Is there any way to restore an etcd cluster from the volume that is created from disaster recovery, etcd-snapshotter? Launch in Bitnami Launchpad. Regardless you can also use a different one. Bitnami offers multi-tier templates to improve the capacity of single VM applications. When scaling down nodes, both kubectl scale and helm upgrade would leave the data PVCs behind. Cannot retrieve contributors at this time. @juv, @ckoehn thanks, I built your PR and pushed it to Dockerhub, just in case someone wants to try out without needing to build it yourself: https://hub.docker.com/layers/juvd/bitnami-docker-etcd/pr-21-3.5.0-debian-10-r61/images/sha256-d642961590041f0922a19a4f3137b82586eaf692ce82a8d3f29a0699231f7e76, I made sure to double-check whether your changes were really built into my image. Already on GitHub? @dk-do could you please also give a try to the instructions I shared? I did some further investigation and was finally able to get the cluster up. etcd is a distributed key-value store designed to securely store data across a cluster. This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. Did you discover anything new? Contribute to bitnami/charts development by creating an account on GitHub. Copy the db file to /tmp/ to all etcd-0, etcd-1, etcd-2 pods. Can you try editing the etcd-scripts ConfigMap adding the line below in the script? This method involves the following steps: Use the etcdctl tool to create a snapshot of the data in the source cluster. etcd-0): The output of the command is as following. Quickly deploy your applications to the cloud and make them available online Only pay for the resources you use If your application requires advanced performance and features, check our Multi-Tier templates . The init-snapshot is only ever required for the initial restore right? By clicking Sign up for GitHub, you agree to our terms of service and Yes, I agree. Bitnami Helm Charts. Type: PersistentVolumeClaim (a reference to a PersistentVolumeClaim in the same namespace) I mean, we are already providing mechanisms in the chart to automatically recover them installing a new chart. `sleep infinity) and mount the PV on it. I added the following, to check a few things and it seems, that the user couldn't access the directory, because of mode 600, I changed it to 700 and now it successfully locates the backup and restores the cluster. See https://github.com/bitnami/charts/blob/master/bitnami/etcd/README.md: Maybe we need some best practise advice how to solve the following issues: etcdctl endpoint status --endpoints=http://etcd-2.etcd-headless.default.svc.cluster.local:2380,http://etcd-1.etcd-headless.default.svc.cluster.local:2380,http://etcd-0.etcd-headless.default.svc.cluster.local:2380 -w table. Vulnerabilities scanner. Your Application Dashboard for Kubernetes, Unlock your full potential with Kubernetes courses designed by experts, Invest in your future and build your cloud native skills. You might want to try bitnami/bitnami-docker-etcd#21. Use Helm v3 with the chart. Note: Following the suggested remediation steps in #3190 (comment) did temporarily address the immediate issue, but it manifested in the same way a few days later. @alemorcuq Is there a rough estimate when this will be worked on? Looking for a distributed and reliable key-value store? bitnami/ bitnami-docker-etcd on GitHub 3.4.2-ol-7-r12 date-fns on Node.js Yarn 2.6.0. illuminate/ mail on PHP Packagist v6.5.0 v6.4.1 On 6. Additional resources Documentation That way when you scale-up, the nodes come with empty data instead of carrying artifacts from the previous run that could possibly mess-up the cluster state. Which chart: bitnami/etcd 6.2.3 Describe the bug Pods are crashing when changing initialClusterState from "new" to "existing". Replicacount of 3 startFromSnapshot.existingClaim=etcd-snapshotter -- set startFromSnapshot.enabled=true -- set startFromSnapshot.existingClaim=etcd-snapshotter -- set startFromSnapshot.snapshotFilename=/snapshots/db-test adding line! 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