Kubernetes read local docker images

Follow the below steps to read the docker images from local instead of pulling them every time from the docker hub. By default, it always reads the images from the docker hub.

This saves us a lot of time by reducing the time to push to the docker hub. It takes a lot of time to push the image from local and tags it.

There are two steps involved.

Step:1

Open the command prompt in admin mode and execute the below command.

C:\Users\Syed>minikube docker-env

Once you execute the command "minikube docker-env" you will see the following output. 

SET DOCKER_TLS_VERIFY=1

SET DOCKER_HOST=tcp://127.0.0.1:32770

SET DOCKER_CERT_PATH=C:\Users\Syed\.minikube\certs

SET MINIKUBE_ACTIVE_DOCKERD=minikube

REM To point your shell to minikube's docker-daemon, run:

REM @FOR /f "tokens=*" %i IN ('minikube -p minikube docker-env') DO @%i

Just Copy the Last line after REM and execute in the same command prompt. 

C:\Users\Syed>@FOR /f "tokens=*" %i IN ('minikube -p minikube docker-env') DO @%i

After making this change, the local docker images will be visible to the K8's.

Step:2

In the Yaml file of the K8's make sure that the image pulls policy to be "Never". Point this file to the local docker build name and the tag. 

eg: imagePullPolicy: Never

Once you do the above two steps, then from next time make changes to the docker file in local, build it and see the changes in the K8's.

Happy Learning!!!!