Need a CURL binary availble inside kubernetes pod

You can skip the manifest and use kubectl run to spin up one of these pods on demand.i.e.

kubectl run curl -it --rm --image=curlimages/curl -- sh

This would create a deployment named curl from the curlimages/curl image and give you an interactive (-it) shell inside it. When you exit, the deployment will be deleted (--rm).

You can use this image nightfury1204/alpine-curl

I created above image for my own testing purpose.

apiVersion: apps/v1kind: StatefulSetmetadata:  name: curl  labels:    name: curlspec:  serviceName: "curl"  selector:    matchLabels:      app: curl  replicas: 1  template:    metadata:      labels:        app: curl    spec:      containers:      - name: curl        image: nightfury1204/alpine-curl        command:          - "sh"          - "-c"          - >            while true; do              sleep 3600;            done

To exec into the pod use this kubectl exec -it curl-0 sh

You getting CrashLoopBackOff because container completes after starting as it does not have any task to process. Easy workaround is to run a command in the container to keep it running indefinitely. So that you can exec into the container and run curl.

Here, is modified yaml to do this:

apiVersion: apps/v1beta1kind: Deploymentmetadata:  name: blue  namespace: defaultspec:  replicas: 1  template:    metadata:      labels:        name: blue    spec:      containers:      - name: blue-website        image: scrapinghub/httpbin:latest        command:        - sleep        - "3600"        resources:          requests:            cpu: 0.1            memory: 200