swiss-army-knife

Packing any application with a tiny/bare minimal base image sounds like an awesome/cool/intelligent idea, until things break and there are not tools inside the container to debug the problem at hand. This repo/docker image tries to solve this problem by having a different image with all possible tools needed to debug majority of the problems in a production environment. This image also includes a very small web application for testing/debugging purposes.

Packages

For Linux, see file: package/Dockerfile

Running

# Run and attach to the network namespace of the container to debug
docker run --name swiss-army-knife --net=container:${CONTAINER_ID_TO_DEBUG} -itd leodotcloud/swiss-army-knife

# Exec into the tools container
docker exec -it swiss-army-knife bash

# Show off your ninja skill!
tcpdump -i eth0 -vvv -nn -s0 -SS -XX

Building

This repo can be built locally using drone cli (docs) using exec pipeline type. Since, local builds use the host docker, it's necessary to mark the repo as "trusted" for the "publish" step.

Build all steps:

drone exec --trusted

Build specific steps:

drone exec --include=lint
drone exec --include=test
drone exec --include=version,build
drone exec --trusted --include=publish

To override and specify custom configuration, edit custom.env file and use:

drone exec --trusted --env-file=custom.env

For using secrets locally:

drone exec --secrets-file=secrets.env