Blog

Enhance Kubernetes cluster with NetworkPolicy

Aug. 31, 2021

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By Brandon Tsai

In Kubernetes, all Pods are accessible from other Pods and network endpoints by default. To isolate and restrict traffic to pods in the cluster, we can install Calico and create `NetworkPolicy` objects to indicate the allowed incoming connections.
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OpenShift Concept and CodeReady Installation

March 7, 2021

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By Brandon Tsai

Although Kubernetes has became the most widely used orchestration platform nowadays, there is still a huge lack of enterprise solutions for the large-scale companies which care the security and durability much more than portability and flexibility. That is where Red Hat OpenShift comes in.
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Service NSW – Digital Driver Licence

Jan. 25, 2021

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By Adrián Deccico

The Digital Driver’s Licence (DDL) is the electronic version of the NSW Driver Licence available through the Service NSW app.
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AWS audit logging

Sept. 29, 2020

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By Jake Mc

With a focus on Kubernetes and infrastructure orchestration at Darumatic, we often have developers testing out new tools, creating new clusters and spinning up different pieces of cloud infrastructure, this can lead to unnecessarily high sandbox cloud costs caused by forgotten and unused infrastructure.
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Improve Kubectl Command with Krew

July 7, 2020

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By Brandon Tsai

Instead of implementing shell scripts to perform some complex behaviours with kubectl, you can think of installing kubectl plugins to extended kubectl command to achieve custom functionality.
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Kubernetes Resources Management - QoS, Quota, and LimitRange

March 1, 2020

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By Brandon Tsai

The applications were typically run standalone in a VM and use all of the resources. The operators and developers need to choose the size of the VM for running the application. But in Kubernetes, the pods/containers can be running on any machine which requires sharing the resources with others. That is where the QoS (Quality of Service Classes) and Resource Quota comes in.
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