alpine/curl

alpine/curl

If enjoy, please *** buying me a coffee.

Alpine-based image with just curl

NOTES: the original upstream https://github.com/appropriate/docker-curl is in read-only (archived statue), its images used base image of alpine:3.7, and are 4 years old now, vulnerabilities in its image, which is risk to use it.

This repo will manage with latest alpine version, and passed trivy scan.

update

If you need HTTP/3 supported, please use another image alpine/curl-http3 at https://hub.docker.com/repository/docker/alpine/curl-http3/general

Usage

• with docker run

console
$ docker run --rm alpine/curl -fsSL https://www.google.com/

Or use it as alias command

alias curl="docker run --rm alpine/curl"

curl -fsSL https://www.google.com/

• with kubectl run

# Each execution typically takes approximately 5 to 10 seconds due to the need to pull the image and create the pod.
kubectl run curl  --rm -it  --image=alpine/curl -- -fsSL https://www.google.com/

# if you want to test the service within kubernetes cluster, 
$ kubectl get service

# suppose, "productpage" is the service name, and "9080" is the service port
# productpage   ClusterIP   10.99.117.108    <none>        9080/TCP   123m

kubectl run curl --rm -it  --image=alpine/curl -- -sS productpage.default:9080/index.html

There is a rare case, that your kubernetes has istio auto injection (or similar sidecar solution) set as true, pod or containers start with network issue if istio-proxy (the sidecar) is not ready. So we need add extra option to reject that setting.

kubectl run curl --rm -it --overrides='{ "apiVersion": "v1", "metadata": { "labels": { "sidecar.istio.io/inject": "false" } } }' --image=alpine/curl --  -sS productpage.default:9080/productpage

or use it as alias command

alias kubecurl="kubectl run curl  --rm -it  --image=alpine/curl --"

kubecurl -fsSL https://www.google.com/

Tags

• alpine/curl:8.1.2: based on curl version

Scan passed

The image is passed the trivy scan, you can run command to confirm

$ docker run --rm -v /var/run/docker.sock:/var/run/docker.sock \
    -v $HOME/Library/Caches:/root/.cache/  aquasec/trivy image alpine/curl

...
================================
Total: 0 (UNKNOWN: 0, LOW: 0, MEDIUM: 0, HIGH: 0, CRITICAL: 0)