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Navratan Lal Gupta

Navratan Lal Gupta
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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…

7 min readApr 13, 2024

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Spin-up a Kubernetes cluster on personal laptop

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Navratan Lal Gupta
in
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…

6 min readMar 4, 2024

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Migrate PVC from one storage class to another

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Navratan Lal Gupta
in
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.

8 min readDec 4, 2023

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Sync Kubernetes secrets with cloud-native secret managers

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Navratan Lal Gupta
in
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.

9 min readNov 20, 2023

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Backup Kubernetes using Velero and CSI volume snapshot

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Navratan Lal Gupta
in
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.

5 min readAug 21, 2023

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

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2

Navratan Lal Gupta
in
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…

5 min readJun 3, 2023

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

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Navratan Lal Gupta
in
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…

6 min readMar 19, 2023

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Setup Telegram bot to get alert notifications

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Navratan Lal Gupta
in
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.

5 min readFeb 5, 2023

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Use PostgreSQL database as backend storage for helm

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Navratan Lal Gupta
in
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…

7 min readDec 24, 2022

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

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1

Navratan Lal Gupta
in
Linux Shots

Find Deprecated API Resources used in a Kubernetes Cluster

Either its applications update or a clusters upgrade, from infrastructure to application layer, everything must be updated periodically to…

4 min readNov 13, 2022

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Find Deprecated API Resources used in a Kubernetes Cluster

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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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