local docker image on minikube

Question

I want to use local docker images directly with minikube instaed of uploading and downloading them and then deploying them on minikube. How do i go about this?

Answer 1

Use the following steps:

1. set the environment variables with eval $(minikube docker-env)
2. build the image with the Docker daemon of Minukube (eg docker build -t my-image .)
3. set the image in the pod spec like the build tag (eg my-image)
4. set the imagePullPolicy to Never, otherwise Kubernetes will try to download the image.

Answer 2

Use a local registry:

docker run -d -p 5000:5000 --restart=always --name registry registry:2

Now tag your image properly:

docker tag ubuntu localhost:5000/ubuntu

Note that localhost should be changed to dns name of the machine running registry container.

Now push your image to local registry:

docker push localhost:5000/ubuntu

You should be pull it back:

docker pull localhost:5000/ubuntu

Now change your yaml file to use local registry.

Answer 3

Try something like this:

# Start minikube
minikube start

# Set docker env
eval $(minikube docker-env)

# Build image
docker build -t foo:0.0.1 .

# Run in minikube
kubectl run hello-foo --image=foo:0.0.1 --image-pull-policy=Never

# Check that it's running
kubectl get pods

Answer 4

I know this is an old question - but it came up number 1 on my Google search - so I thought I'd add what I learnt.

You can use: minikube cache add <image_name>.

This will still require you to upload it (to minikube), but it'll save the download.

You'll also need to set imagePullPolicy to Never.

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