{"id":86,"date":"2025-08-06T21:06:29","date_gmt":"2025-08-06T21:06:29","guid":{"rendered":"https:\/\/server.ua\/en\/blog\/?p=86"},"modified":"2025-08-06T21:06:29","modified_gmt":"2025-08-06T21:06:29","slug":"orchestrated-backup-for-a-kubernetes-cluster-on-vps","status":"publish","type":"post","link":"https:\/\/server.ua\/en\/blog\/orchestrated-backup-for-a-kubernetes-cluster-on-vps","title":{"rendered":"Orchestrated Backup for a Kubernetes Cluster on VPS"},"content":{"rendered":"\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXebydm4fVp-Ijzwx-rPDYe0cA3zSDvmNC1Y3WSm0Z8pEy7DlZ5oryGMrBqIV56fxqCpOWLZVMqSuJGI_iYqn_B9S5sMNM-J1hbUpRyQ9MCwsPashzqNwXbPFuA8qNExGkPs379jGQ?key=y-eFZgmK6Uhc1JiqYzU1CA\" alt=\"\"\/><\/figure>\n\n\n\n<p>Modern businesses increasingly adopt microservice architecture using Kubernetes to manage containerized applications. However, as complexity grows, so does the need for a reliable backup system\u2014not only for configurations but also for persistent data. This becomes especially important when the Kubernetes cluster is deployed on a VPS, where the administrator is fully responsible for infrastructure protection.<\/p>\n\n\n\n<!--more-->\n\n\n\n<p>In this article, we\u2019ll walk you through how to implement an automated backup system for a Kubernetes cluster on a VPS using modern tools like Velero, Restic, and S3-compatible storage. We\u2019ll also look at how to restore configurations and data in case of failure.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Why Kubernetes Backup Is Essential<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Unexpected failures: Even a reliable VPS can fail due to disk corruption, human error, or cyberattacks.<br><\/li>\n\n\n\n<li>Cluster complexity: Rebuilding a cluster from scratch is time-consuming. Losing configurations, CRDs, and PVCs can halt business operations.<br><\/li>\n\n\n\n<li>Portability: Automated backups simplify migration between hosting platforms and help restore infrastructure quickly.<br><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>What Needs to Be Backed Up in Kubernetes<\/strong><\/h2>\n\n\n\n<p>Unlike conventional systems, Kubernetes requires backup of two critical layers:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Kubernetes resources (configurations) \u2014 Deployment, Service, ConfigMap, Secret, and so on.<br><\/li>\n\n\n\n<li>Persistent data inside Volumes (PVC) \u2014 such as databases or files stored in pods.<br><\/li>\n<\/ol>\n\n\n\n<p>Both must be backed up in sync and ready for recovery.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Key Tools for Backup<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Velero<\/strong><\/h3>\n\n\n\n<p>Velero is a powerful open-source tool for backup, recovery, and migration of Kubernetes clusters. It supports both cloud and on-premises environments, including VPS setups.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Features:<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Backup of Kubernetes resource objects.<br><\/li>\n\n\n\n<li>PVC backup with Restic integration.<br><\/li>\n\n\n\n<li>Automated scheduling support.<br><\/li>\n\n\n\n<li>S3-compatible storage support (MinIO, Wasabi, AWS S3, etc.).<br><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Restic<\/strong><\/h3>\n\n\n\n<p>Restic is a secure and simple CLI tool for file backups. Velero uses it to back up PVC contents independently of volume types.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>How to Set Up Kubernetes Backup on VPS<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>1. Environment Setup<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A <a href=\"https:\/\/server.ua\/en\/vps\">VPS<\/a> with a running Kubernetes cluster (e.g., via kubeadm).<br><\/li>\n\n\n\n<li>Access to the cluster via kubectl.<br><\/li>\n\n\n\n<li>An account on S3-compatible storage or local MinIO configured.<br><\/li>\n<\/ul>\n\n\n\n<p>You can use dedicated server hosting or VPS services to deploy your own Kubernetes cluster with full control.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2. Installing Velero<\/strong><\/h3>\n\n\n\n<p>bash<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>velero install \\\n  --provider aws \\\n  --plugins velero\/velero-plugin-for-aws:v1.7.0 \\\n  --bucket my-k8s-backups \\\n  --secret-file .\/credentials-velero \\\n  --backup-location-config region=us-east-1,s3ForcePathStyle=true,s3Url=https:\/\/minio.myhost.local<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>&#8211;provider: \u201caws\u201d is used even for MinIO.<br><\/li>\n\n\n\n<li>&#8211;secret-file: authentication credentials for the storage.<br><\/li>\n\n\n\n<li>&#8211;s3Url: URL for MinIO or other S3-compatible services.<br><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>3. Enabling PVC Backup with Restic<\/strong><\/h3>\n\n\n\n<p>bash<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>velero install --use-restic ...<\/code><\/pre>\n\n\n\n<p>Important: all PVCs must be annotated with backup.velero.io\/backup-volumes.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>4. Manual Backup Creation<\/strong><\/h3>\n\n\n\n<p>bash<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>velero backup create cluster-backup --include-namespaces my-namespace<\/code><\/pre>\n\n\n\n<p>Or for a full-cluster backup:<\/p>\n\n\n\n<p>bash<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>velero backup create full-backup --ttl 168h<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>5. Scheduling Automatic Backups<\/strong><\/h3>\n\n\n\n<p>bash<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>velero schedule create daily-backup --schedule=\"0 2 * * *\" --ttl 720h0m0s<\/code><\/pre>\n\n\n\n<p>This creates a backup daily at 2:00 AM that is stored for 30 day<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Restoring from a Backup<\/strong><\/h2>\n\n\n\n<p>To restore the cluster state:<\/p>\n\n\n\n<p>bash<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>velero restore create --from-backup full-backup<\/code><\/pre>\n\n\n\n<p>If PVCs were used, Restic will automatically handle volume data recovery via VolumeMount.<\/p>\n\n\n\n<p>If you&#8217;re using server colocation, this setup allows for fully independent, automated backups even on custom infrastructure.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Security Best Practices<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Regularly verify the integrity and usability of backups.<br><\/li>\n\n\n\n<li>Separate access to the storage\u2014use different keys for backup and recovery.<br><\/li>\n\n\n\n<li>Avoid storing Kubernetes secrets in plain text\u2014encrypt them or use sealed-secrets.<br><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Alternatives to Velero<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kasten K10 \u2014 a paid enterprise solution from Veeam.<br><\/li>\n\n\n\n<li>Stash by AppsCode \u2014 an operator-based solution using VolumeSnapshot and custom backup controllers.<br><\/li>\n\n\n\n<li>Custom scripts + Restic \u2014 a lightweight approach for small-scale clusters with manual management.<br><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Conclusion<\/strong><\/h2>\n\n\n\n<p>Backing up a Kubernetes cluster is a necessity, not an option. With Velero and Restic, you can reliably automate backups even in VPS or <a href=\"https:\/\/server.ua\/en\/dedicated\">dedicated server<\/a> environments. You get automation, encryption, fast recovery\u2014and peace of mind.<\/p>\n\n\n\n<p>Use Server.ua infrastructure solutions to ensure availability, business continuity, and full control over your Kubernetes environment\u2014whether you\u2019re running a small startup or a large enterprise.<\/p>\n\n\n\n<p>Ready to secure your Kubernetes cluster? Choose a VPS server or dedicated server plan with flexible configurations, perfect for backup and Kubernetes management.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Modern businesses increasingly adopt microservice architecture using Kubernetes to manage containerized applications. However, as complexity grows, so does the need for a reliable backup system\u2014not only for configurations but also for persistent data. This becomes especially important when the Kubernetes cluster is deployed on a VPS, where the administrator is fully responsible for infrastructure protection.<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[74,78,100,67],"class_list":["post-86","post","type-post","status-publish","format-standard","hentry","category-vps","tag-backup","tag-kubernetes","tag-orchestration","tag-vps"],"_links":{"self":[{"href":"https:\/\/server.ua\/en\/blog\/wp-json\/wp\/v2\/posts\/86","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.ua\/en\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.ua\/en\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.ua\/en\/blog\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/server.ua\/en\/blog\/wp-json\/wp\/v2\/comments?post=86"}],"version-history":[{"count":1,"href":"https:\/\/server.ua\/en\/blog\/wp-json\/wp\/v2\/posts\/86\/revisions"}],"predecessor-version":[{"id":87,"href":"https:\/\/server.ua\/en\/blog\/wp-json\/wp\/v2\/posts\/86\/revisions\/87"}],"wp:attachment":[{"href":"https:\/\/server.ua\/en\/blog\/wp-json\/wp\/v2\/media?parent=86"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.ua\/en\/blog\/wp-json\/wp\/v2\/categories?post=86"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.ua\/en\/blog\/wp-json\/wp\/v2\/tags?post=86"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}