• Kubernetes: Pod Security

  4 min read

  
  

  Security is one of the key concerns when running workloads on Kubernetes. To help teams safeguard their cluster environments, Kubernetes offers Pod Security Standards (PSS). These standards define how to enforce security controls for your pod workloads.

  02/09/2024

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• Kubernetes: Tunneling through a Pod with socat

  2 min read

  
  

  When you need to connect to some service as if you were in the same network as the Kubernetes cluster, you can use a Pod with socat to create a tunnel to the service.

  28/08/2024

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• Kubernetes: Configuring Topology Spread Constraints to tune Pod scheduling

  2 min read

  
  

  Ensuring high availability and fault tolerance in a Kubernetes cluster is a complex task: One important feature that allows us to addresses this challenge is Topology Spread Constraints.

  10/07/2023

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• Set the default container for kubectl

  2 min read

  
  

  One of the many improvements we get in Kubernetes 1.27 is the ability to set what's the default container:

  apiVersion: v1
  kind: Pod
  metadata:
    name: multi-container-pod
  spec:
    containers:
    - image: alpine:latest
      name: one
      command:
      - sh
      - -c
      - 'while true; do echo one; sleep 1m; done'
    - image: alpine:latest
      name: two
      command:
      - sh
      - -c
      - 'while true; do echo two; sleep 2m; done'
    - image: alpine:latest
      name: three
      command:
      - sh
      - -c
      - 'while true; do echo tree; sleep 3m; done'
  

  01/06/2023

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• Kubernetes: Pod failinig with: exec user process caused "exec format error"

  2 min read

  
  

  A Pod can fail to run with the following error:

  standard_init_linux.go:178: exec user process caused "exec format error"
  

  24/11/2022

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