I have this that is working...
# Set docker env
eval $(minikube docker-env)
# Build image
docker build -t jrg/hw .
# Run in minikube
kubectl run hello-world --image=jrg/hw:latest --image-pull-policy=Never --port=8080
kubectl expose deployment hello-world --type=NodePort --name=hello-serviceI can access the endpoint just as I expect. Now I am trying to use a .yml file to deploy like this...
apiVersion: v1
kind: Pod
metadata:
name: hello-world-dev
labels:
purpose: simple
spec:
containers:
- name: hello-world-dev-container
image: jrg/hw:latest
env:
- name: WORKING
value: "Yup Working"But when I run kubectl apply -f k8s/ineject/dev.envvars.yml I get...
NAME READY STATUS RESTARTS AGE
hello-world-7d87b8ddd5-gqr8k 1/1 Running 1 2d22h
hello-world-dev 0/1 ErrImagePull 0 6sSo why can one see my local docker to get the image and 1 has an issue?
In the docs regarding Pre-pulling Images we can read:
By default, the kubelet will try to pull each image from the specified registry. However, if the
imagePullPolicyproperty of the container is set toIfNotPresentorNever, then a local image is used (preferentially or exclusively, respectively).
Also please see other options with imagePullPolicy in Container Images docs.
The imagePullPolicy and the tag of the image affect when the kubelet attempts to pull the specified image.
imagePullPolicy: IfNotPresent: the image is pulled only if it is not already present locally.
imagePullPolicy: Always: the image is pulled every time the pod is started.
imagePullPolicyis omitted and either the image tag is:latestor it is omitted:Alwaysis applied.
imagePullPolicyis omitted and the image tag is present but not:latest:IfNotPresentis applied.
imagePullPolicy: Never: the image is assumed to exist locally. No attempt is made to pull the image.