Docker pull rate request limit from Kubernetes environment - kubernetes

Question

I logged in using docker login command in my machine.
then I tried to run the kubectl command to apply a yaml file:
kubectl apply -f manifests/1_helloworld_deploy.yaml
but this failed with error :
Warning Failed 20s (x2 over 35s) kubelet Failed to pull image "nginx:latest": rpc error: code = Unknown desc = failed to pull and unpack image "docker.io/library/nginx:latest": failed to copy: httpReaderSeeker: failed open: unexpected status code https://registry-1.docker.io/v2/library/nginx/manifests/sha256:89ea560b277f54022cf0b2e718d83a9377095333f8890e31835f615922071ddc: 429 Too Many Requests - Server message: toomanyrequests: You have reached your pull rate limit. You may increase the limit by authenticating and upgrading: https://www.docker.com/increase-rate-limit
Now, I already logged in using the docker username and account, still I'm getting a pull rate error.
What should I do to make this working for .yaml file also?

Answer 1

When you login to docker on a machine , its credentials will be saved in a file named ~/.docker/config.json
We need need to explicitly instruct these credentials to be used while pulling images .
For that we need to create a secret with contents of ~/.docker/config.json and mention that as imagePullSecrets in the yaml file.
Following is a sample procedure :
kubectl create secret docker-registry my-secret --from-file=.dockerconfigjson=/root/.docker/config.json
In the podspec update it as image pull secret as following :
apiVersion: v1
kind: Pod
metadata:
name: boo
spec:
containers:
- name: boo
image: busybox
imagePullSecrets:
- name: my-secret
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