OpenShift Container Platform is designed to lock down Kubernetes security and integrate the platform with a variety of extended components. 2. Red Hat OpenShift Dedicated. This section covers how to install and configure Velero and how to use Velero to take backup/restore on an Openshift Container. Prerequisites Access to the cluster as a user with the cluster-admin role through a certificate-based kubeconfig file, like the one that was used during installation. 1. For security reasons, store this file separately from the etcd snapshot. For problematic updates, refer to troubleshooting guide. Select the stopped instance, and click Actions → Instance Settings → Change instance type. Read developer tutorials and download Red Hat software for cloud application development. Get product support and knowledge from the open source experts. Etcd encryption can be enabled in the cluster to effectively provide an additional layer of data security and canto debug in your cluster to help protect the loss of sensitive data if an etcd backup is exposed to incorrect parties. It is important to take an etcd backup before performing this procedure so that your cluster can be restored if you encounter any issues. NOTE: After any update in the OpenShift cluster, it is highly recommended to perform a backup of ETCD. Eventhough hub-rm5rq-master-0 is already unavailable, it is nice to have a backup just in case any additional problems arise (IE: human error) and the cluster ends up in a worst-state. When you restore from an etcd backup, the status of the workloads in OpenShift Container Platform is also restored. Prerequisites Access to the cluster as a user with the cluster-admin role. For example, an OpenShift Container Platform 4. 9: Starting in OpenShift Container Platform 3. OpenShift API for Data Protection (OADP) supports the following features: Backup. I’ve tried to find a way to renew the certificates however there is no. Get training, subscriptions, certifications, and more for partners to build, sell, and support customer solutions. Instead, you either take a snapshot from a live member with the etcdctl snapshot save command or copy the member/snap/db file from an etcd data directory. When restoring, the etcd-snapshot-restore. An etcd backup plays a crucial role in disaster recovery. 1, then this procedure generates a single file that contains the etcd snapshot and static Kubernetes API server resources. Unlike other tools which directly access the Kubernetes etcd database to perform backups and restores, Velero uses the Kubernetes API to capture the state of cluster resources and to restore them when necessary. etcd is a consistent and highly-available key value store used as Kubernetes' backing store for all cluster data. sh script is backward compatible to accept this single file. If you have lost all master nodes, the following steps cannot. View the member list: Copy. This service uses TCP and UDP port 8053. During etcd quorum loss, applications that run on OpenShift Container Platform are unaffected. 10 openshift-control-plane-1 <none. 9 openshift-control-plane-0 <none> <none> etcd-openshift-control-plane-1 5/5 Running 0 3h54m 192. Backing up etcd data. The contents of persistent volumes (PVs) are never part of the etcd snapshot. To schedule OpenShift Container 4 etcd backups with a cronjob. Backing up etcd data. However, this file is required to restore a previous state of etcd from the respective etcd snapshot. In OpenShift Enterprise, you can back up (saving state to separate storage) and restore (recreating state from separate storage) at the cluster level. However, it is important to understand when it is appropriate to use OADP instead of etcd’s built-in backup/restore. With the backup of ETCD done, the next steps will be essential for a successful recovery. io/v1] ImageContentSourcePolicy [operator. operator. Server boot mode set to UEFI and Redfish multimedia is supported. Node failure due to hardware. An etcd backup plays a crucial role in disaster recovery. Get a shell into one of the contrail-etcd pods. 10. openshift. gz. 10 openshift-control-plane-1 <none. Before completing a backup of the etcd cluster, you need to create a Secret in an existing or new temporary namespace containing details about the authentication mechanism used by etcd. 10. 3. In OpenShift Container Platform 4. 1 Platform and Installation method: Bare-metal hosts and UPI Cluster size: Master x3, Worker x3 Backup etcd before test. 1, then it is a single file that contains the etcd snapshot and static Kubernetes API server resources. Do not take an etcd backup before the first certificate rotation completes, which occurs 24 hours after installation, otherwise the backup will contain expired certificates. 883545 I | mvcc: restore compact to 361491 2019-05-15 19:03:34. Environment. In OpenShift Container Platform, you can back up (saving state to separate storage) and restore (recreating state from separate storage) at the cluster level. Back up your cluster’s etcd data regularly and store in a secure location ideally outside the OpenShift Container Platform environment. Application networking. 11, the scaleup. If you run etcd as static pods on your master nodes, you stop the. 9 openshift-control-plane-0 <none> <none> etcd-openshift-control-plane-1 5/5 Running 0 3h54m 192. Restoring etcd quorum. Restore from the etcd backup:Back up your cluster’s etcd data regularly and store in a secure location ideally outside the OpenShift Container Platform environment. You should only save a snapshot from a single master host. kubectl exec -it contrail-etcd-xxx -c contrail-etcd -n contrail-system sh. 2. Skip podman and umount, because only needed to extract etcd client from image. Do not take an etcd backup before the first certificate rotation completes, which occurs 24 hours after installation, otherwise the backup will contain expired certificates. 9 to 3. Delete and recreate the control plane machine (also known as the master machine). 11, downgrading does not completely restore your cluster to version 3. After you have an etcd backup, you can restore to a previous cluster state. Backing up etcd. There are a variety of ways to customize a backup to avoid backing up inappropriate resources via namespaces or labels. It can offer multi-cloud data protection, multiple cyber-resiliency options and several different backup types within your OpenShift environments (Kubernetes resources, etcd backups and CSI snapshots). 2. About 300Mb for a daily backup and 2. Single-tenant, high-availability Kubernetes clusters in the public cloud. Users only need to specify the backup policy. 1 で etcd のバックアップを取る場合、この手順により、etcd スナップショットおよび静的 Kubernetes API サーバーリソースが含まれる単一ファイルが生成されます。. Build, deploy and manage your applications across cloud- and on-premise infrastructure. Do not take an etcd backup before the first certificate rotation completes, which occurs 24 hours after installation, otherwise the backup will contain expired certificates. Note that the etcd backup still has all the references to the storage volumes. An etcd backup plays a crucial role in disaster recovery. This component is. 2. Log in to your cluster as a cluster-admin user using the following command: $ oc login The server uses a certificate signed by an unknown authority. 1, Red Hat introduced the concept of channels for recommending the appropriate release versions for cluster upgrades. Back up your cluster’s etcd data regularly and store in a secure location ideally outside the OpenShift Container Platform environment. API objects. 10 to 3. 11, the scaleup. 10. Backing up etcd. Overview. You must back up etcd data before shutting down a cluster; etcd is the key-value store for OpenShift Container Platform, which persists the state of all resource objects. When we look into stateful applications, we find many users still opt to use NFS as the storage solution, and while this is changing to more modern software-defined storage solutions, like GlusterFS, the truth is that NFS still. A Red Hat subscription provides unlimited access to our. While the etcdctl backup command is used to perform the backup, etcd v3 has no concept of a backup. Remove the old secrets for the unhealthy etcd member that was removed. Back up your cluster’s etcd data regularly and store in a secure location ideally outside the OpenShift Container Platform environment. operator. COLD DR — a backup and recovery solution based on OpenShift API for Data Protection (OADP). If you are taking an etcd backup on OpenShift Container Platform 4. yml playbook does not scale up etcd. 8 Backup and restore Backing up and restoring your OpenShift Container Platform cluster. Then run the following commands to define the environment variables: export ROLE_NAME=etcd-operator. 9 recovery guide mentions only etcdctl snapshot save, no etcdctl backup. Do not take an etcd backup before the first certificate rotation completes, which occurs 32. Create an etcd backup on each master. Back up your cluster’s etcd data regularly and store in a secure location ideally outside the OpenShift Container Platform environment. Vulnerability scanning. You must back up etcd data before shutting down a cluster; etcd is the key-value store for OpenShift Container Platform, which persists the state of all resource objects. Learn about our open source products, services, and company. 4. Before we start node rebuild activity lets talk about the etcd backup and its steps. This document describes the process to restart your cluster after a graceful shutdown. 10. Support for RHEL7 workers is removed in OpenShift Container Platform 4. OCP version: OpenShift Container Platform 4. Back up your cluster’s etcd data regularly and store in a secure location ideally outside the OpenShift Container Platform environment. sh script is backward compatible to accept this single file, which must be in the format of snapshot_db_kuberesources_<datetimestamp>. Follow these steps to back up etcd data by creating a snapshot. These steps will allow you to restore an application that has been previously backed up with Velero. There is also some preliminary support for per-project backup . Red Hat OpenShift Dedicated. 我们都知道 etcd 是 OpenShift/Kubernetes 集群里最为重要的一个组件，用于存储集群所有资源对象的状态。. 9 will include a minor bump to etcd bringing it to v3. Follow these steps to back up etcd data by creating an etcd snapshot and backing up the resources for the static pods. You have access to the cluster as a user. Back up your cluster’s etcd data regularly and store in a secure location ideally outside the OpenShift Container Platform environment. etcd is the key-value store for OpenShift Container Platform, which persists the state of all resource objects. OpenShift Container Platform 3. However, this file is required to restore a previous state of etcd from the respective etcd snapshot. The first step to restore a Kubernetes cluster from an etcd snapshot is to install the ETCD client. tar. openshift. 168. 0 or 4. 2. ec2. 3 requires Docker 1. 2021-10-18 17:48:46 UTC. etcd is the key-value store for OpenShift Container Platform, which persists the state of all resource objects. As long as you have taken an etcd backup, you can follow this procedure to restore your cluster to a previous state. However, this file is required to restore a previous state of etcd from the respective etcd snapshot. Backing up etcd etcd is the key-value store for OpenShift Container Platform, which persists the state of all resource objects. Prepare NFS server in Jumphost/bastion host for backup. internal. These are required for application node and etcd node scale-up operations and must be restored on another master node if the CA host master is. Even though master-0 is already unavailable, it is nice to have a backup just in case any additional problems arise (i. The full state of a cluster installation includes: etcd data on each master. Specific namespaces must be created for running ETCD backup pods. 143. The etcd package is required, even if using embedded etcd,. This is really no different than the process of when you remove a node from the cluster and add a new one back in its place. Backing up etcd data; Replacing a failed master host; Disaster recovery. OpenShift Container Platform 3. Additional resources. Learn about our open source products, services, and company. openshift. Overview. OpenShift Restore Process. You can check the list of backups that are currently recognized by the cluster to. For the selected control plane machine, back up the etcd data by creating an etcd snapshot. The OADP 1. Connect to the running etcd container, passing in the name of a pod that is not on the affected node: In a terminal that has access to the cluster as a cluster-admin user, run the following command: Copy. 168. gz file contains the encryption keys for the etcd snapshot. 1, then this procedure generates a single file that contains the etcd snapshot and static Kubernetes API server resources. us-east-2. x very cleverly took the manual instructions from the backing up etcd documentation and automated them with a CronJob. Backup and restore. 3Gb for 8 days worth of backups is nothing these days. When you enable etcd encryption, the following OpenShift API server and Kubernetes API server resources are encrypted:. This is fixed in OpenShift Container Platform 3. ec2. Installing the OADP Operator 4. ec2. The fastest way for developers to build, host and scale applications in the public cloud. internal. This includes situations where a majority of master hosts have been lost, leading to etcd quorum loss and the cluster going offline. 3. Remove the old secrets for the unhealthy etcd member that was removed. The full state of a cluster installation includes: etcd data on each master. This looks like a etcd version 2 command to me - I'm new to etcd so I'm please bear with me. Verify that etcd encryption was successful. The etcd is an open-source, key value store used for persistent storage of all Kubernetes objects like deployment and pod information. $ oc delete secret -n openshift-etcd etcd-serving-metrics-ip-10-0-131-183. In OpenShift Container Platform, you can also replace an unhealthy etcd member. You should take a backup of etcd or VM snapshot for insurance. Inline bash to get the etcd image, etcd image will change after a cluster upgrade. 10 in Release Notes for an optional image manifest migration script. You must back up etcd data before shutting down a cluster; etcd is the key-value store for OpenShift Container Platform, which persists the state of all resource objects. The full state of a cluster installation includes: etcd data on each master. ec2. 2. For security reasons, store this file separately from the etcd snapshot. etcd は OpenShift Container Platform のキーと値のストアであり、すべてのリソースオブジェクトの状態を保存します。. 4. You can restart your cluster after it has been shut down gracefully. This process is no different than the process of when you remove a node from the cluster and add a new one back in its place. List the etcd pods in this project. That command is: apt install etcd-client. ec2. An etcd backup plays a crucial role in disaster recovery. It is important to take an etcd backup before performing this procedure so that your cluster can be restored if you encounter any issues. Back up your cluster’s etcd data regularly and store in a secure location ideally outside the OpenShift Container Platform environment. To create an Azure Red Hat OpenShift 4 application backup, see Create an Azure Red Hat OpenShift 4 backup. Single-tenant, high-availability Kubernetes clusters in the public cloud. operator. August 3, 2023 16:34. Build, deploy and manage your applications across cloud- and on-premise infrastructure. Backup - The etcd Operator performs backups automatically and transparently. The release notes contain important notices about changes to OpenShift Container Platform and its function. This snapshot can be saved and used at a later time if you need to restore etcd. 0 or 4. This includes situations where a majority of master hosts have been lost, leading to etcd quorum loss and the cluster going offline. Backing up etcd data. The etcd-snapshot-restore. sh script to initiate etcd backup process. You must back up etcd data before shutting down a cluster; etcd is the key-value store for OpenShift Container Platform, which persists the state of all resource objects. Focus mode. gz file contains the encryption keys for the etcd snapshot. local 172. インス. When restoring, the etcd-snapshot-restore. 3. etcd-openshift-control-plane-0 5/5. etcd-openshift-control-plane-0 5/5. 1. When you restore etcd, OpenShift Container Platform starts launching the previous pods on nodes and reattaching the same storage. gz file contains the encryption keys for the etcd snapshot. If etcd encryption is enabled during a backup, the static_kuberesources_<datetimestamp>. You must back up etcd data before shutting down a cluster; etcd is the key-value store for OpenShift Container Platform, which persists the state of all resource objects. You learned. Restoring the etcd configuration file. 0. The etcdctl backup command rewrites some of the metadata contained in the backup,. Control plane backup and restore. io/v1alpha1] ImagePruner [imageregistry. Copy to clipboard. Red Hat OpenShift Online. Installing and configuring the OpenShift API for Data Protection with OpenShift Container Storage" Collapse section "4. If you run etcd as static pods on your master nodes, you stop the. SSH access to control plane hosts. When you restore etcd, OpenShift Container Platform starts launching the previous pods on nodes and reattaching the same storage. Delete all containers: # docker rm. 3. tar. Restoring etcd quorum. The sneakiness we will layer on top of that approach is rather than having a CronJob create a debug node to then execute the. Single-tenant, high-availability Kubernetes clusters in the public cloud. 10. If your Kubernetes cluster uses etcd as its backing store, make sure you have a back up plan for those data. Note that the etcd backup still has all the references to current storage volumes. etcd-client. You must back up etcd data before shutting down a cluster; etcd is the key-value store for OpenShift Container Platform, which persists the state of all resource objects. Back up your cluster’s etcd data regularly and store in a secure location ideally outside the OpenShift Container Platform environment. Build, deploy and manage your applications across cloud- and on-premise infrastructure. OpenShift etcd backup CronJob Installation Creating manual backup / testing Configuration Monitoring Helm chart Installation Development Release Management References README. 2. If an etcd host has become corrupted and the /etc/etcd/etcd. 9 openshift-control-plane-0 <none> <none> etcd-openshift-control-plane-1 5/5 Running 0 3h54m 192. internal. 4. $ oc get secrets -n openshift-etcd | grep ip-10-0-131-183. conf file to /etc/etcd/: # cp /backup/etcd-config-<timestamp>/etcd. Only save a backup from a single master host. export NAMESPACE=etcd-operator. . ec2. If unexpected status for apstate is seen, troubleshoot the openshift service by: ssh apphub. The disaster recovery documentation provides information for administrators on how to recover from several disaster situations that might occur with their OpenShift Container Platform cluster. 1. etcd is the key-value store for OpenShift Container Platform, which persists the state of all resource objects. 2. Posted In Red Hat OpenShift Container Platform Tags backup etcd Automated daily etcd-backup on OCP 4 Latest response May 8 2023 at 2:49 PM So I followed. 2 cluster must use an etcd backup that was taken from 4. Get product support and knowledge from the open source experts. (1) 1. You must back up etcd data before shutting down a cluster; etcd is the key-value store for OpenShift Container Platform, which persists the state of all resource objects. The fastest way for developers to build, host and scale applications in the public cloud. spec. 因此，对 etcd 数据进行备份同样的也非常重要。. You must back up etcd data before shutting down a cluster; etcd is the key-value store for OpenShift Container Platform, which persists the state of all resource objects. You have taken an etcd backup. After you take the snapshot, you can restore it, for example, as part of a disaster recovery operation. Learn about our open source products, services, and company. io/v1] ImageContentSourcePolicy [operator. Ensure that you back up the /etc/etcd/ directory, as noted in the etcd backup instructions. oc describe etcd cluster|grep “members are available” The output of this command will show how many etcd pods are running and also the pod that is failing. openshift. Backup - The etcd Operator performs backups automatically and transparently. In the CronJob section, I will explain the pods that will be created to perform the backup in more detail. Backup and restore procedures are not fully supported in OpenShift Container Platform 3. Add. $ oc delete secret -n openshift-etcd etcd-serving-metrics-ip-10-0-131-183. An etcd backup plays a crucial role in disaster recovery. Anything less than 3 is a problem. If you run etcd on a separate host, you must back up etcd, take down your etcd cluster, and form a new one. Read developer tutorials and download Red Hat software for cloud application development. Single-tenant, high-availability Kubernetes clusters in the public cloud. Read developer tutorials and download Red Hat software for cloud application development. You can use one healthy etcd node to form a new cluster, but you must remove all other healthy nodes. 150. Build, deploy and manage your applications across cloud- and on-premise infrastructure. After step 3 binds the new SCC to the backup Service Account, , you can restore data when you want. Back up your cluster’s etcd data regularly and store in a secure location ideally outside the OpenShift Container Platform environment. etcd is a consistent and highly-available key value store used as Kubernetes’ backing store for all cluster data. Back up your cluster’s etcd data regularly and store in a secure location ideally outside the OpenShift Container Platform. 168. Also, it is an important topic in the CKA certification exam. Before performing the ETCD backup restore, it is necessary to stop the static control plane pods. In a terminal that has access to the cluster as a cluster-admin user, run the following command: $ oc rsh -n openshift-etcd etcd-ip-10-0-154-204. View the member list: Copy. Access a master host. All cluster data is stored here. 3. Build, deploy and manage your applications across cloud- and on-premise infrastructure. The etcd package is required, even if using embedded etcd,. Customer responsibilities. DNSRecord [ingress. The sneakiness we will layer on top of that approach is rather than having a CronJob create a debug node to then execute the backup in, we will. For security reasons, store this file separately from the etcd snapshot. Chapter 4. 168. Overview. When you enable etcd encryption, the following OpenShift API server and Kubernetes API server resources are encrypted:. x to AWS S3 Bucket; Configure Static IPv4 Address in OpenShift 4. To back up the current etcd data before you delete the directory, run the following command:. Provision as. This backup can be saved and used at a later time if you need to restore etcd. (1) 1. Back up your cluster’s etcd data regularly and store in a secure location ideally outside the OpenShift Container Platform environment. Do not take a backup from each master host in the cluster. Add the restored master hosts to the etcd cluster. Red Hat OpenShift Online. If etcd encryption is enabled during a backup, the static_kuberesources_<datetimestamp>. 59 and later. 3. The Machine Config Operator (MCO) is responsible for mounting a secondary disk for an OpenShift Container Platform 4. ec2. You can restart your cluster after it has been shut down gracefully. If etcd encryption is enabled during a backup, the static_kuberesources_<datetimestamp>. Connect to the running etcd container, passing in the name of a pod that is not on the affected node: In a terminal that has access to the cluster as a cluster-admin user, run the following command: Copy. Note that the etcd backup still has all the references to current storage volumes. etcd-openshift-control-plane-0 5/5. Do not take an etcd backup before the first certificate rotation completes, which occurs 24 hours after installation, otherwise the backup will contain expired certificates. If you are taking an etcd backup on OpenShift Container Platform 4. Before taking a backup of the etcd cluster, a Secret needs to be created in a temporary new or an existing namespace, containing details about the etcd cluster. Follow these steps to back up etcd data by creating an etcd snapshot and backing up the resources for the static pods. Note that the etcd backup still has all the references to the storage volumes. You can use one healthy etcd node to form a new cluster, but you must remove all other healthy nodes. This document describes the process to restart your cluster after a graceful shutdown. SkyDNS provides name resolution of local services running in OpenShift Container Platform. Back up your cluster’s etcd data regularly and store in a secure location ideally outside the OpenShift Container Platform environment. It is important to take an etcd backup before performing this procedure so that your cluster can be restored if you encounter any issues. Restoring. OCP 4. Do not take a backup from each control plane host in the cluster. 125:2380 2019-05-15 19:03:34. You should only save a snapshot from a single master host. 8 Backup and restore Backing up and restoring your OpenShift Container Platform cluster Last Updated: 2023-02-28. Upgrade - Upgrading etcd without downtime is a. Restoring a single-node OpenShift Container Platform cluster using an etcd backup is not officially supported. The etcd-snapshot-restore. The full state of a cluster installation includes: etcd data on each master. io/v1] ImageContentSourcePolicy [operator. etcd stores the persistent master state while other components watch etcd for changes to bring themselves into the desired state. Do not take an etcd backup before the first certificate rotation completes, which occurs 24 hours after installation, otherwise the backup will contain expired certificates. To find the created cron job, run the following command: $ oc get cronjob -n openshift-etcd. Back up your cluster’s etcd data regularly and store in a secure location ideally outside the OpenShift Container Platform environment. Back up etcd data. Control plane backup and restore. You can use one healthy etcd node to form a new cluster, but you must remove all other healthy nodes. 647589 I | pkg/netutil: resolving etcd-0. An etcd backup plays a crucial role inRed Hat OpenShift Container Platform. Copied! $ oc rsh -n openshift-etcd etcd-ip-10-0-154-204. md OpenShift etcd backup CronJob You must back up etcd data before shutting down a cluster; etcd is the key-value store for OpenShift Container Platform, which persists the state of all resource objects. Let’s first get the status of the etcd pods. This process is no different than the process of when you remove a node from the cluster and add a new one back in its place. There is also some preliminary support for per-project backup . Monitor cloud load balancer (s) and native OpenShift router service, and respond to alerts. etcd backup, and restore are essential tasks in Kubernetes cluster administration. Overview. Creating a secret for backup and snapshot. 1. operator. Do not take an etcd backup before the first certificate rotation completes, which occurs 24 hours after installation, otherwise the backup will contain expired certificates. In OpenShift Container Platform, you can back up (saving state to separate storage) and restore (recreating state from separate storage) at the cluster level. crt keyFile: master.