itsthenetwork/alpine-curl repository overview

A handy basic image comprising of;

• Alpine Linux⁠ v3.8.1. A security-oriented, lightweight Linux distribution based on musl libc⁠ and BusyBox⁠.
• curl⁠ v7.61.1. A useful command-line tool and library for transferring data with URLs.

For previous tag 1:

• Alpine v3.4 (containing this vulnerability: https://justi.cz/security/2018/09/13/alpine-apk-rce.html⁠)
• Curl v7.51.0

⁠Usage

I'd expect you use this image as a simple website and/or proxy testing tool.

⁠Pulling

Use this command to pull the image manually before runtime:

sudo docker pull itsthenetwork/alpine-curl:latest

⁠Runtime

This command will start the container and use curl to verbosely connect to and display the (considerable) source of https://www.google.co.uk/⁠. The container will be automatically removed when the command completes.

sudo docker run -it --name=curl --rm itsthenetwork/alpine-curl -v https://www.google.co.uk/

If you want to connect to localhost, you'll need to add the host mode network parameter:

sudo docker run -it --name=curl --rm --net=host itsthenetwork/alpine-curl -v https://localhost/

⁠Additional Packages

If you wanted to install additional packages and build your own image based upon this one you'd start your Dockerfile like this:

FROM itsthenetwork/alpine-curl:latest

RUN apk -add U -v package_name package_name

...

⁠Dockerfile

The Dockerfile used to create this image is available at the root of the file system, here it is anyway:

FROM alpine:latest
LABEL maintainer "Steven Iveson [email protected]"
COPY Dockerfile /Dockerfile

RUN apk add --update --verbose --no-cache grep bash curl
RUN rm -rf /var/cache/apk/* /tmp/* /sbin/halt /sbin/poweroff /sbin/reboot

ENTRYPOINT ["/usr/bin/curl"]