Month: March 2023

Using Microsoft PowerRename to Rename Batches of Files

Posted on by rchapin

If you have to rename a large number of files under Windows it is very tedious to do it one-by-one via the gui. Instead of writing a batch file, Microsoft has a suite of tools called PowerToys. PowerToys installs a utility called PowerRename that will do the job.

I did this under Windows 10, but I imagine that it is the same in Windows 11 based on the documentation on the PowerToys installation page.

Installation

  1. Start a PowerShell as
→ Continue reading “Using Microsoft PowerRename to Rename Batches of Files”

Docker Cheat Sheet

Posted on by rchapin

Following are a number of my commonly used docker commands for my own reference

Building

Run the following in the same directory in which your Dockerfile resides

docker build -t <image-name>:<version> .

Or you can specify the path to the Dockerfile

docker build . -t <image-name>:<version> -f /path/to/Dockerfile

Running

Run a container interactively

Especially useful when debugging commands that you will encapsulate in a Docker file, this will enable you to run a base image and then execute commands interactively → Continue reading “Docker Cheat Sheet”

Git Merge Conflict Resolution Cheat Sheet

Posted on by rchapin

Some of git’s nomenclature can be confusing, especially since it is context dependent. Following are some TLDR;s for dealing with resolving merge conflicts in different scenarios.

–ours vs –theirs

The meaning of --ours vs --theirs can depend on whether you are doing a rebase or a merge.

Assuming that the feature branch is checked out

git merge developgit rebase develop
To keep changes from develop--theirs--ours
To keep changes from feature--ours--theirs

If, during a rebase there → Continue reading “Git Merge Conflict Resolution Cheat Sheet”

kubectl/k8s Cheat Sheet

Posted on by rchapin
  • Namespaces
    • List all namespaces: kubectl get namespace
    • Set a namespace: kubens <namespace-name>
    • See currently set namespace: kubens -c
  • Pods
    • List all pods: kubectl get pods
    • List all pods in specific namespace: kubectl get pods -n <namespace>
    • Kill a pod: kubectl delete pod <pod-name>
    • Describe/get details of pod: kubectl describe pods <pod-name>
    • InitContainers
      • Get logs: First describe the pod and look for the name of the init container. Then run kubectl logs <pod-name> -c <init-container-name>
  • Deployments
    • Get the manifest for a
→ Continue reading “kubectl/k8s Cheat Sheet”

helm Cheat Sheet

Posted on by rchapin

Development Tips and Tricks

Test Template Rendering

Run the following. Instead of it installing the chart it will render the template and display the output

helm install --debug --dry-run <release-name> <path-to-chart-dir>

To test with an overriding value

helm install <release-name> <path-to-chart-dir> --dry-run --debug --set k=v

Deployments

  • List releases: helm list
  • Get the manifest for a release: helm get manifest <release-name[flags]
→ Continue reading “helm Cheat Sheet”
© 2005 Ryan Chapin