godev's Introduction

Purpose

A docker image to enable golang program develop and debug(with gdb) in any OS, whether macOS or Windows, where installing gdb is rather troublesome.

Explanation

Choosing ArchLinux(Instead of Alphine or other Debian distro) is simply because personally I like the lightweighted distro with the (almost) most efficient package manager.
vim is added for temporal modification of source code in the container directly.
git is added to avoid the git related error if you happens to enter git command in the container (Maybe I will remove it later??).
Other command line related tools/programs(e.g. tmux, screen .etc) are not installed in the image

Hint

To run gdb properly with this image, please append privilege param to docker run: Do remember to replace the /gopath/on/host with the absolute $GOPATH on your host.

docker run --privileged --mount type=bind,source=/gopath/on/host,target=/ws -it phye/godev:latest /bin/bash

Example

Say that you're developing golang programs in macOS and want to debug your golang binary using gdb, here is typical steps:

Write your golang code in macOS under your GOPATH. Let's assume that algobase package contains some basic component, while playground directory is the main package which uses algobase package, and thus we have the following layout:

$ echo $GOPATH
/ws/go
$ ls $GOPATH/src/github.com/phye
algobase playground

Now you need to debug your code in playground directory in macOS, all you need to do is:

$ docker run --privileged --mount type=bind,source=/ws/go,target=/ws -it phye/godev:latest /bin/bash
(container)$ cd /ws/go/src/github.com/phye/playground
(container)$ go build -gcflags "-N -l" sth.go
(container)$ gdb sth
(container gdb) break 33
(container gdb) r # Other gdb commands you like to use during debug

Recommend Projects