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Surviving A Complete ETCD Outage, Part 1: Snapshots, And Getting Them Back When the Cluster Is Gone

Part 1: Notes on taking frequent ETCD snapshots, and setting up an automated workflow to getting one back when the control plane is down and kubectl returns nothing but errors.

6 min readabhishekpareek.dev

Chandrashekhar K MDec 27, 2025

When etcd Fails: How I Backed Up and Restored a Kubernetes Cluster

In Kubernetes, everything looks fine—until etcd breaks. etcd is the brain of the cluster.If it’s lost, your deployments, services, and configurations disappear with it. This short story documents how I backed up etcd, deleted a deployment, and restor...

2 min readkmchandrashekhar.hashnode.dev

Harshit SahuJun 3, 2025

Backup and restore strategies for ETCD and workloads

Guide to Backing Up and Restoring an ETCD Cluster with Built-in Snapshots. In the world of distributed systems and containerized environments, ensuring data integrity and availability is paramount. Etcd, a distributed key-value store, is at the heart...

15 min readharshitsahu2311.hashnode.dev

Harshit SahuJan 26, 2025

ETCD Backup and Restore - CKA

In any Kubernetes cluster, ETCD plays a vital role as it stores all the cluster's critical data, including configuration, state, and secrets. Since it acts as the "source of truth" for the entire cluster, ensuring the safety and integrity of ETCD dat...

3 min readharshitsahu2311.hashnode.dev

Cheedge LeeDec 29, 2024

Etcd Backup and Restore (4)

Why Update etcd.yaml? In previous posts, we see we need to update the etcd.yaml file to make the restore work. And the reason for this step is related to kubelet working mechanism. Pod Reconciliation by kubelet: The etcd static pod is managed by the ...

1 min readnotes-renovation.hashnode.dev

Cheedge LeeDec 27, 2024

Etcd Backup and Restore (3)

Last post I have show steps to restore etcd, but when we edit the /etc/kubernetes/manifest/etcd.yaml file, there are some confuse items among the /var/lib/etcd on hostPath and mountVolumne. For example, the --data-dir in the command: etcdctl snapshot...

2 min readnotes-renovation.hashnode.dev

Cheedge LeeDec 27, 2024

Etcd Backup and Restore (2)

1. Backup This pare can refer to my last post, here. 2. Restore To follow the official procedure[1]: "If any API servers are running in your cluster, you should not attempt to restore instances of etcd." Therefore, for restoring an etcd backup, where...

3 min readnotes-renovation.hashnode.dev

Cheedge LeeDec 27, 2024

Etcd Backup and Restore (1)

1. Backup Etcd 1.1 SSH to node ssh controlplane (Optional) Check etcd kubectl get pods -n kube-system | grep etcd-controlplane 1.2 Set env var Set Environment Variables for etcdctl Ensure you have the correct etcdctl environment variables configure...

2 min readnotes-renovation.hashnode.dev

Md Shahriyar Al Mustakim MitulNov 19, 2024

Kubernetes 101: Part 12 : ETCD, KubeAPI server, Controller, Kube-scheduler, Kubelet, Upgrade cluster, backup etcd

ETCD ETCD is an open-source, distributed key-value store that is used to store that is simple, secure and fast A Key value store This format is to store values in the format of key-value pair How to install etcd? Download binaries and then extract i...

15 min readmitul-shahriyar.hashnode.dev

Siddhartha GauravOct 7, 2024

Introduction to etcd for Beginners

In the world of distributed systems and microservices, etcd plays a crucial role as a consistent and highly available key-value store. It was initially developed by CoreOS and has become an essential component of Kubernetes (K8s) for maintaining clus...

4 min readsgaurav.hashnode.dev

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Surviving A Complete ETCD Outage, Part 1: Snapshots, And Getting Them Back When the Cluster Is Gone

When etcd Fails: How I Backed Up and Restored a Kubernetes Cluster

Backup and restore strategies for ETCD and workloads

ETCD Backup and Restore - CKA

Etcd Backup and Restore (4)

Etcd Backup and Restore (3)

Etcd Backup and Restore (2)

Etcd Backup and Restore (1)

Kubernetes 101: Part 12 : ETCD, KubeAPI server, Controller, Kube-scheduler, Kubelet, Upgrade cluster, backup etcd

Introduction to etcd for Beginners