ImagePullBackOff local repository with Minikube

Question

I'm trying to use minikube and kitematic for testing kubernetes on my local machine. However, kubernetes fail to pull image in my local repository (ImagePullBackOff).

I tried to solve it with this : Can not pull docker image from private repo when using Minikube

But I have no /etc/init.d/docker, I think it's because of kinematic ? (I am on OS X)

EDIT :

I installed https://github.com/docker/docker-registry, and

docker tag local-image-build localhost:5000/local-image-build

docker push localhost:5000/local-image-build

My kubernetes yaml contains :

spec:
  containers:
  - name: backend-nginx
    image: localhost:5000/local-image-build:latest
    imagePullPolicy: Always

But it's still not working... Logs :

Error syncing pod, skipping: failed to "StartContainer" 
for "backend-nginx" with ErrImagePull: "Error while pulling image: 
Get http://127.0.0.1:5000/v1/repositories/local-image-build/images: 
dial tcp 127.0.0.1:5000: getsockopt: connection refused

EDIT 2 :

I don't know if I'm on the good path, but I find this :

http://kubernetes.io/docs/user-guide/images/

But I don't know what is my DOCKER_USER...

kubectl create secret docker-registry myregistrykey --docker-server=DOCKER_REGISTRY_SERVER --docker-username=DOCKER_USER --docker-password=DOCKER_PASSWORD --docker-email=DOCKER_EMAIL

EDIT 3

now I got on my pod :

Failed to pull image "local-image-build:latest": Error: image library/local-image-build not found
Error syncing pod, skipping: failed to "StartContainer" for "backend-nginx" with ErrImagePull: "Error: image library/local-image-build not found"

Help me I'm going crazy.

EDIT 4

Error syncing pod, skipping: failed to "StartContainer" for "backend-nginx" with ErrImagePull: "Error response from daemon: Get https://192.168.99.101:5000/v1/_ping: tls: oversized record received with length 20527"

I added :

EXTRA_ARGS='
    --label provider=virtualbox
    --insecure-registry=192.168.99.101:5000

to my docker config, but it's still don't work, the same message....

By the way, I changed my yaml :

 spec:
      containers:
      - name: backend-nginx
        image: 192.168.99.101:5000/local-image-build:latest
        imagePullPolicy: Always

And I run my registry like that :

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

Answer 1

Use the minikube docker registry instead of your local docker

https://kubernetes.io/docs/tutorials/stateless-application/hello-minikube/#create-a-docker-container-image

Set docker to point to minikube

eval $(minikube docker-env)

Push to minikube docker

docker build -t hello-node:v1 .

Set your deployment to not pull IfNotPresent

K8S default is set to "Always" Change to "IfNotPresent"

imagePullPolicy: IfNotPresent

Related Issue

Answer 2

I think I solved by doing

minikube start --vm-driver="virtualbox" --insecure-registry="$REG_IP":80

instead of just

minikube start

$REG_IP is :

REG_IP=docker-machine ip registry

Source

Answer 3

If you're using --vm-driver=none, you'll need to set imagePullPolicy to Never.

imagePullPolicy: Never: the image is assumed to exist locally. No attempt is made to pull the image.

Answer 4

in my case, I had to do the following steps.

$ eval $(minikube docker-env)

$ minikube config set driver virtualbox

$ minikube start

Answer 5

Check this great article: How to Run Locally Built Docker Images in Kubernetes

My Environment

• OS: Debian
• Version: 11 (Bullseye)
• Minikube: v1.24.0
• Kubectl: v1.22.4
• Docker: 20.10.5+dfsg1

It covers all wrong image stages and workarounds.

Stages

ErrImagePull

Edit deployment.yaml and add imagePullPolicy: Never:

apiVersion: apps/v1
kind: Deployment
metadata:
  name: my-local-deployment
spec:
  template:
    metadata:
      name: my-pod
    spec:
      containers:
      - name: my-container
        image: my-local-image    # The one built and tagged locally
        imagePullPolicy: Never   # So it doesn't pull the image from remote registry

ErrImageNeverPull

Run: eval $(minikube -p minikube docker-env)

that outputs environment variables needed to point the local Docker daemon to the minikube internal Docker registry

Finally

Rebuild the image, to install it in minikube registry:

docker build . -t my-image

Answer 6

As per the kubernetes documentation here: https://kubernetes.io/docs/concepts/containers/images/#imagepullpolicy-defaulting

If you use the latest tag for deployment then it will try to pull image. I was able to deploy service with v1 tag after following steps on WSL-2

1. eval $(minikube -p minikube docker-env)
2. minikube start
3. docker build --tag=my-service:v1 .
4. kubectl create deployment my-service --image=my-service:v1
5. kubectl expose pod "my-service" --type=NodePort --port=8080
6. minikube service my-serivce