Episode 3(book): secret need to be removed in order to pull image correctly

[nqb]

Hello Jeff,

In book version 0.3, at page 24, we use following command:

kubectl set image deployment/hello-go kube101-go=geerlingguy/kube101:hello-go

in order to switch from a private image to a public image.

However, before doing this, we added a secret to the deployment.

It looks like until:

imagePullSecrets:
- name: regcred

is defined for the deployment, pull of new image doesn't work.

I did my test using:

# kubectl version --output=yaml
clientVersion:
  buildDate: "2022-05-03T13:46:05Z"
  compiler: gc
  gitCommit: 4ce5a8954017644c5420bae81d72b09b735c21f0
  gitTreeState: clean
  gitVersion: v1.24.0
  goVersion: go1.18.1
  major: "1"
  minor: "24"
  platform: windows/amd64
kustomizeVersion: v4.5.4
serverVersion:
  buildDate: "2022-08-17T18:26:59Z"
  compiler: gc
  gitCommit: 7e54d50d3012cf3389e43b096ba35300f36e0817
  gitTreeState: clean
  gitVersion: v1.23.10
  goVersion: go1.17.13
  major: "1"
  minor: "23"
  platform: linux/amd64

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