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Navratan Lal Gupta

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Linux Shots

Encryption of terraform state using OpenTofu

Opentofu 1.7 brings a long awaited feature in terraform to encrypt terraform state file

Jun 3, 2024

Encryption of terraform state using OpenTofu

Jun 3, 2024

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Linux Shots

Spin-up a Kubernetes cluster on personal laptop

Creating a Kubernetes cluster is very expensive on any cloud providers. Using Kubernetes on cloud for learning purpose is not recommended…

Apr 13, 2024

Spin-up a Kubernetes cluster on personal laptop

Apr 13, 2024

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Linux Shots

Migrate PVC from one storage class to another

There could be a requirement where you might need to migrate the PVC and its data from one storage class (storage back-end) to another…

Mar 4, 2024

Migrate PVC from one storage class to another

Mar 4, 2024

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Linux Shots

Sync Kubernetes secrets with cloud-native secret managers

Cloud secret manager can be utilized to rotate Kubernetes secret if we are able to sync Kubernetes secret with cloud-native secret manager.

Dec 4, 2023

Sync Kubernetes secrets with cloud-native secret managers

Dec 4, 2023

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Linux Shots

Backup Kubernetes using Velero and CSI volume snapshot

Velero can be integrated with Restic or Kopia for filesystem backup of pod volumes. Filesystem back-up of live-system is not consistent.

Nov 20, 2023

Backup Kubernetes using Velero and CSI volume snapshot

Nov 20, 2023

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Linux Shots

Speed up pod startup by re-using image layers from other nodes with Spegel

Spegel enables each nodes to act as a local registry mirror, allowing nodes to share images between themselves & reduce pod startup time.

Aug 21, 2023

Speed up pod startup by re-using image layers from other nodes with Spegel

Aug 21, 2023

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Linux Shots

Use K8senv to manage multiple versions of Kubernetes’ clients (kubectl/velero/helm) on same jump…

How do you manage numbers of Kubernetes clusters from same jump box ? What if clusters running are on different versions ? What if…

Jun 3, 2023

Use K8senv to manage multiple versions of Kubernetes’ clients (kubectl/velero/helm) on same jump…

Jun 3, 2023

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Linux Shots

Setup Telegram bot to get alert notifications

There are many otchannels where we can receive notifications. Email, Discord, Ntfy.sh, Gotify and many others. But sometime we need to get…

Mar 19, 2023

Setup Telegram bot to get alert notifications

Mar 19, 2023

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Linux Shots

Use PostgreSQL database as backend storage for helm

By default, Helm 3 stores all release information in Kubernetes cluster itself using K8s secret in release namespace.

Feb 5, 2023

Use PostgreSQL database as backend storage for helm

Feb 5, 2023

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Linux Shots

Point in time Snapshot of Persistent Volume Data with Kubernetes’ Volume Snapshots

When we perform an upgrade, or make a configuration change in an application, there is always little risk that the application may behave…

Dec 24, 2022

Point in time Snapshot of Persistent Volume Data with Kubernetes’ Volume Snapshots

Dec 24, 2022

Navratan Lal Gupta

Navratan Lal Gupta

I talk about Linux, DevOps, Kubernetes, Docker, opensource and Cloud technology. Don't forget to follow me and my publication linuxshots.

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