Docker Ubuntu

Customised Ubuntu base image.

Installation

Builds of the image are available on Docker Hub.

docker pull codeworksio/ubuntu

Alternatively you can build the image yourself.

docker build --tag codeworksio/ubuntu \
    github.com/codeworksio/docker-ubuntu

Configuration

• /sbin/entrypoint.sh is defined as the entrypoint
• /sbin/init.d/*.sh are sourced if present
• Use for example CMD [ "/sbin/init.sh" ] in a child image to run your process
• Docker environment variables
  • INIT_DEBUG=true enable verbose output
  • INIT_TRACE=true pass the main process to strace (use along with the Docker flag --privileged)
  • INIT_RUN_AS=root start the main process as a privileged user
  • INIT_GOSU=true make use of gosu (default)

Testing

make build start bash
make stop

TODO

• Check if Linux Enhanced BPF (eBPF) can provide better tracing than strace