78-comints/static-toolbox

Containerized build scripts to compile various static binaries.

STATIC TOOLBOX

Dockerfile based build scripts to compile various static binaries of useful tools.

I often found myself in shells where I needed a newer version of a particular tool, which was not available through the package manager .. or the system even lacked a package manager to begin with. In that case it can be helpful to have portable binaries that you can just copy to the target without worrying about library dependencies and be able to use it right away. This does not account for cross-compilation for a different architecture of course but most of the systems in question were x86_64, anyway.

The scripts placed in build/ are Dockerfiles that are built with the builtkit frontend. However, the end result is not a container image but a built binary that is saved in the base directory, which you can then copy where-ever you like. The fact that everything is built inside a container means that you do not need to provide any specific build environment – besides an installation of Docker.

REQUIREMENTS

• Docker with DOCKER_BUILDKIT=1 support, i.e. 19.03+
• GNU make, find

USAGE

Available build targets are given by the Dockerfiles in build/:

• make fdisk
• make gpg
• make git
• make make
• make zstd
• make busybox
• make curl

Some of the scripts use GPG signatures for which the trusted signing keys are stored in build/*.keys files and are imported before checking the downloaded sources.

ADD YOUR OWN

Add your own build scripts in build/:

• add a Dockerfile named like the binary you want to compile
• use seperate RUN commands for better caching of steps
• the build/ directory will be the context, so you may add scripts and COPY them
• use a final FROM scratch stage and only copy the output binary into this rootfs