When I use the kubectl run command instead of creating a deployment it creates a pod/selenium-node-chrome and as a result, I am unable to scale the selenium-node-chrome using the replicas command.
PS C:\Users\Test> kubectl run selenium-node-chrome --image selenium/node-chrome:latest --env="HUB_PORT_4444_TCP_ADDR=selenium-hub" --env="HUB_PORT_4444_TCP_PORT=4444"
pod/selenium-node-chrome created
PS C:\Users\Test> kubectl scale deployment selenium-node-chrome --replicas=5
Error from server (NotFound): deployments.extensions "selenium-node-chrome" not found
The video tutorial that I followed successfully created deployment "selenium-node-chrome" after running the same command. Please I need help and I am new to Kubernetes. Thanks.
All generators are deprecated in Kubernetes version 1.18. From the docs here
Note: All kubectl generators are deprecated. See the Kubernetes v1.17 documentation for a list of generators and how they were used.
You can use kubectl create deployment my-dep --image=busybox
to create a deployment.
Also to create a yaml file use kubectl create deployment my-dep --image=busybox --dry-run=client -o yaml > deployment.yaml
and then edit the yaml file to add env or any other details and apply the yaml via kubectl apply -f deployment.yaml
You should use a generator
kubectl run selenium-node-chrome \
--image selenium/node-chrome:latest \
--env="HUB_PORT_4444_TCP_ADDR=selenium-hub" \
--env="HUB_PORT_4444_TCP_PORT=4444" \
--generator=deployment/apps.v1beta1
https://v1-17.docs.kubernetes.io/docs/reference/kubectl/conventions/#generators