Blog | Capstone IT

Published On - April 29, 2020

Dave Thompson kubernetesTags: kubeconfig, kubernetes

Add Kubernetes users to your cluster

If you are working with Kubernetes a lot, you have probably built several basic clusters for learning purposes. You probably don’t have integration set up with an external system to authenticate users for your basic clusters. To try out many of the security-related concepts in your clusters, you w...

Published On - April 22, 2020

Dave Thompson kubernetes, securityTags: kubernetes, PodSecurityPolicy, security

Hands-on with Kubernetes Pod Security Policies

Kubernetes Pod Security Policy allows you to control the security specifications pods must adhere to in order to run in your cluster. You can block users from deploying inherently insecure pods either intentionally or unintentionally. This sounds like a great feature and a security best practice, an...

Published On - February 24, 2020

Dave Thompson container, docker, kubernetes, networkTags: container, docker-enterprise, kubernetes, network

How Pods access Kubernetes DNS in Docker EE, part two

This is part two of a two-part blog about internal DNS resolution and network access for Pods in Kubernetes. In part one we looked at how internal DNS services are configured in Kubernetes and how DNS resolution is configured for containers in Pods for user workloads. In this part, we will look at h...

Published On - February 24, 2020

Dave Thompson container, docker, kubernetes, networkTags: container, docker-enterprise, kubernetes, network, pod

How Pods access Kubernetes DNS in Docker EE, part one

Service discovery is one of the important benefits of using a container/Pod orchestrator. When you create a Service in Kubernetes, controllers running behind the scenes create an entry in the cluster’s DNS records so that other applications deployed in the cluster can look up the Service using its...

Published On - February 22, 2020

Mark Miller awsTags: aws, brew, homebrew, macbook, python, reinstall

Somethings brewing with awscli

I recently updated my MacBook Pro by exercising the following Homebrew command brew update. This caused a couple problem that led me down the path of trying to link awscli with a newer version of python....

Published On - December 31, 2019

Mark Miller kubernetesTags: ckad, container, docker, kubernetes, network, pod, storage

Kubernetes Series – Pods (part 1)

A couple weeks back I took the test for Certified Kubernetes Application Developer developed by the Cloud Native Computing Foundation (CNCF), in collaboration with The Linux Foundation. For me personally it was satisfying to complete the test and become certified. Today’s blog will be th...

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