Question 409905 in Docker Question posted in
The official documentation can be found here.

Unable to pull Docker Hub image from GKE cluster

I want to run a container using my image, hosted in Docker Hub registry. I have this deployment:

// ---
spec:
  containers:
  - name: web
    image: "mycompany/myimage:1.0"
    imagePullPolicy: IfNotPresent
  - name: db
    image: postgres:13
  imagePullSecrets:
  - name: dockerhub-secret
// ---

Then, I have the secret dockerhub-secret:

apiVersion: v1
kind: Secret
metadata:
  name: dockerhub-secret
type: kubernetes.io/dockerconfigjson
data:
  .dockerconfigjson: <my-base64>

But I get this timeout error:

Failed to pull image "mycompany/myimage:1.0": rpc error: code = DeadlineExceeded desc = failed to pull and unpack image "docker.io/mycompany/myimage:1.0": failed to resolve reference "docker.io/mycompany/myimage:1.0": failed to do request: Head "https://registry-1.docker.io/v2/mycompany/myimage/manifests/1.0": dial tcp 54.196.99.49:443: i/o timeout

Postgres image is pulled with no errors.

My image is pulled with no errors in my local machine:

docker pull mycompany/myimage:1.0

I tried to use wrong credentials, on purpose, in the Kubernetes secret but the same error happens.

Tags:

2

Answers


  1. Chosen as BEST ANSWER
    0

    Solved. Subnet where cluster lives had no Internet access. I configured SNAT and everything is working now.

    For some reason, postgres docker image was being downloaded. I suppose something related to cache, who knows.


  2. 0

    Check that deployment and secret are on the same namespace. If the service account you are using is default, you have to patch it to read image pull secrets:

    kubectl patch serviceaccount default -n <namespace> -p '{"imagePullSecrets": [{"name": "dockerhub-secret"}]}'
    Login or Signup to reply.
Please signup or login to give your own answer.

Back To Top
Search