09-config-map.sh

cd k8s-specs

git pull

minikube start --vm-driver=virtualbox

kubectl config current-context

kubectl create cm my-config \
    --from-file=cm/prometheus-conf.yml

kubectl describe cm my-config

cat cm/alpine.yml

kubectl create -f cm/alpine.yml

kubectl get pods

kubectl exec -it alpine -- \
    ls /etc/config

kubectl exec -it alpine -- \
    cat /etc/config/prometheus-conf.yml

kubectl delete -f cm/alpine.yml

kubectl delete cm my-config

kubectl create cm my-config \
    --from-file=cm/prometheus-conf.yml \
    --from-file=cm/prometheus.yml

kubectl create -f cm/alpine.yml

kubectl exec -it alpine -- \
    ls /etc/config

kubectl delete -f cm/alpine.yml

kubectl delete cm my-config

kubectl create cm my-config \
    --from-file=cm

kubectl describe cm my-config

kubectl create -f cm/alpine.yml

kubectl exec -it alpine -- \
    ls /etc/config

kubectl delete -f cm/alpine.yml

kubectl delete cm my-config

kubectl create cm my-config \
    --from-literal=something=else \
    --from-literal=weather=sunny

kubectl get cm my-config -o yaml

kubectl create -f cm/alpine.yml

kubectl exec -it alpine -- \
    ls /etc/config

kubectl exec -it alpine -- \
    cat /etc/config/something

kubectl delete -f cm/alpine.yml

kubectl delete cm my-config

cat cm/my-env-file.yml

kubectl create cm my-config \
    --from-env-file=cm/my-env-file.yml

kubectl get cm my-config -o yaml

cat cm/alpine-env.yml

kubectl create \
    -f cm/alpine-env.yml

kubectl exec -it alpine-env -- env

kubectl delete \
    -f cm/alpine-env.yml

cat cm/alpine-env-all.yml

kubectl create \
    -f cm/alpine-env-all.yml

kubectl exec -it alpine-env -- env

kubectl get cm my-config -o yaml

cat cm/prometheus.yml

cat cm/prometheus.yml | sed -e \
    "s/192.168.99.100/$(minikube ip)/g" \
    | kubectl create -f -

kubectl rollout status deploy prometheus

open "http://$(minikube ip)/prometheus/targets"

minikube delete