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Saeid Bostandoust
Saeid Bostandoust

1.2K Followers

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Oct 12

AWS EKS Black Belt Course

Register at https://kubedemy.io/ssbostan/aws-eks-black-belt-course Hello and welcome to the most complete AWS EKS course, Black Belt Course. This course is created for those who want to learn AWS EKS and Kubernetes in depth. AWS EKS is an AWS-managed Kubernetes service, which stands for Elastic Kubernetes Service. Many companies are looking to…

Kubernetes

4 min read

AWS EKS Black Belt Course
AWS EKS Black Belt Course
Kubernetes

4 min read


Published in

ITNEXT

·Apr 17

Kubernetes Hacks and Tricks — #8 Pod Preemption, Eviction and Priority classes

In the previous article, we learnt about QoS classes in Kubernetes and how Kubernetes evicts Pods if node resources are running out. Now it’s time to be familiar with the PriorityClass resource in Kubernetes. Imagine you have a bunch of Pods with the same QoS class in the worker node…

Kubernetes

3 min read

Kubernetes Hacks and Tricks — #8 Pod Preemption, Eviction and Priority classes
Kubernetes Hacks and Tricks — #8 Pod Preemption, Eviction and Priority classes
Kubernetes

3 min read


Published in

ITNEXT

·Mar 30

Kubernetes Hacks and Tricks — #7 Pod and Container Resource and QoS classes

You know how Kubernetes decide to find which Pods should be evicted if node resource is not enough or is running out? In this article, we’ll talk about this and introduce Kubernetes Quality of Service classes related to this topic. What is Node Pressure? Node pressure is a term that explains the worker node’s…

Kubernetes

5 min read

Kubernetes Hacks and Tricks — #7 Pod and Container Resource and QoS classes
Kubernetes Hacks and Tricks — #7 Pod and Container Resource and QoS classes
Kubernetes

5 min read


Published in

ITNEXT

·Mar 22

Kubernetes Hacks and Tricks — #6 Find Pods running from deprecated registry

As you know, recently, Kubernetes changed its main repository from k8s.gcr.io to registry.k8s.io, meaning you should update your manifests as soon as possible. In this note, I tell you how you can find running Pods using the legacy Kubernetes image registry. https://kubernetes.io/blog/2023/03/10/image-registry-redirect The following command list all running Pods in…

Kubernetes

2 min read

Kubernetes Hacks and Tricks — #6 Find Pods running from deprecated registry
Kubernetes Hacks and Tricks — #6 Find Pods running from deprecated registry
Kubernetes

2 min read


Published in

ITNEXT

·Mar 11

Kubernetes Hacks and Tricks — #5 Pod DNS Policy and DNS Config options

What really is dnsPolicy in Pod spec, and when should we change it? By setting the dnsPolicy option in Pod spec, you define how DNS requests should be resolved. If you want to resolve DNS requests with just the internal DNS server, or you want to use the internal…

Kubernetes

3 min read

Kubernetes Hacks and Tricks — #5 Pod DNS Policy and DNS Config options
Kubernetes Hacks and Tricks — #5 Pod DNS Policy and DNS Config options
Kubernetes

3 min read


Published in

ITNEXT

·Mar 6

Jenkins Tutorial — Part 10 — Work with Git in Pipeline

Long time no see! After a long time, I got a chance to release and continue the complete Jenkins tutorial. In this article, we will learn how to use Git in our pipelines. Using Git is a most important topic in CI/CD pipelines as we store everything in Git, our…

Jenkins

4 min read

Jenkins Tutorial — Part 10 — Work with Git in Pipeline
Jenkins Tutorial — Part 10 — Work with Git in Pipeline
Jenkins

4 min read


Published in

ITNEXT

·Mar 4

Kubernetes Hacks and Tricks — #4 Find worker node info from Pod…

In access-limited clusters where you don’t have access to cluster resources, you may need worker nodes’ info like worker node name, node…

Kubernetes

1 min read

Kubernetes Hacks and Tricks — #4 Find worker node info from Pod spec info
Kubernetes Hacks and Tricks — #4 Find worker node info from Pod spec info
Kubernetes

1 min read


Published in

ITNEXT

·Feb 23

Kubernetes Hacks and Tricks — #3 List all downloaded images on worker…

Do you want to know which images are downloaded and available on your worker nodes? If yes, you need to run the following command.

K8s

1 min read

Kubernetes Hacks and Tricks — #3 List all downloaded images on worker nodes
Kubernetes Hacks and Tricks — #3 List all downloaded images on worker nodes
K8s

1 min read


Published in

ITNEXT

·Feb 17

Kubernetes Hacks and Tricks — #2 Optional ConfigMaps and Secrets in Pods

In some applications, the application configurations are set by default in the codebase (hard-coded) and if you want to override them, you can provide your override values through environment variables. Sometimes and for some configurations, it doesn’t matter if the override values exist. However, you want to make sure the…

Kubernetes

2 min read

Kubernetes Hacks and Tricks — #2 Optional ConfigMaps and Secrets in Pods
Kubernetes Hacks and Tricks — #2 Optional ConfigMaps and Secrets in Pods
Kubernetes

2 min read


Published in

ITNEXT

·Feb 13

Kubernetes Hacks and Tricks — #1 Immutable ConfigMaps and Secrets

Sometimes you want to create configs/secrets for your applications, and you want to make sure when configs/secrets got created, nobody can…

Kubernetes

1 min read

Kubernetes Hacks and Tricks — #1 Immutable ConfigMaps and Secrets
Kubernetes Hacks and Tricks — #1 Immutable ConfigMaps and Secrets
Kubernetes

1 min read

Saeid Bostandoust

Saeid Bostandoust

1.2K Followers

Founder at Kubedemy.io | LinkedIn @ssbostan

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