Customized image in Kubernetes

In order to work with a customized locally built image in a locally running Kubernetes cluster, the following approach did work out quite nice for an ad-hoc need.

Adjust the image name in Kubernetes

The first step is to adapt the Kubernetes objects, or to configure the HELM chart accordingly:

image:
  registry: "local"
  repository: "my-custom-api"
  imagePullPolicy: "IfNotPresent"
  tag: "latest"

This will render into the following image name:

local/my-custom-api:latest

Tag an image with the custom name

Now the full image name has to be used when building the image or tagging an image:

# Build the image and tag it
docker build -t "local/my-custom-api:latest" .

# Tag an existing image
docker tag 002e2e768526 local/my-custom-api:latest

Adjust the image name in Kubernetes

Tag an image with the custom name

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