Dec 27, 2025 · 2 min read · 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...
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Jun 3, 2025 · 15 min read · 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...
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Jan 26, 2025 · 3 min read · 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...
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Dec 29, 2024 · 1 min read · 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 ...
Join discussionDec 27, 2024 · 2 min read · 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...
Join discussionDec 27, 2024 · 3 min read · 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...
Join discussionDec 27, 2024 · 2 min read · 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...
Join discussionNov 19, 2024 · 15 min read · 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...
Join discussionOct 7, 2024 · 4 min read · 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...
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Oct 5, 2024 · 6 min read · Backup and Restore Method 1 Basic ETCD configuration View the ETCD version Describe the etcd pod and check the image name kubectl describe pod -n kube-system etcd-controlplane Image: registry.k8s.io/etcd:3.5.12-0 Address to reach the ETCD cl...
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