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alpinecodespace

An Alpine docker image for use as the base image for a custom Codespace project.

Features

Since it's based on the mcr.microsoft.com/vscode/devcontainers/base:alpine image, it supports all Codespace features. In addition, it has these changes:

  1. The default user will be vscode.

  2. The vscode user's default shell is /bin/zsh.

  3. These packages are installed:

    gcc
musl-dev

Usage

Here are some examples of how to create a custom Codespace images:

Go

# syntax=docker/dockerfile:1
ARG GO_VERSION
FROM golang:${GO_VERSION}-alpine AS build
ENV CGO_ENABLED="0"

# These are all the tools installed by the "Go: Install/Update Tools"
# command, plus gofumpt. gofumpt is a stricter gofmt that enforces additional
# formatting rules for better consistency and readabilty.
RUN --mount=type=cache,target=/root/.cache/go-build \
    --mount=type=cache,target=/go/pkg \
    <<-EOT
    go install github.com/cweill/gotests/gotests@latest
    go install github.com/fatih/gomodifytags@latest
    go install github.com/josharian/impl@latest
    go install github.com/haya14busa/goplay/cmd/goplay@latest
    go install github.com/go-delve/delve/cmd/dlv@latest
    go install github.com/golangci/golangci-lint/cmd/golangci-lint@latest
    go install golang.org/x/tools/gopls@latest
    go install mvdan.cc/gofumpt@latest
EOT


FROM ghcr.io/ryboe/alpinecodespace:latest
ENV PATH="/home/vscode/go/bin:/usr/local/go/bin:${PATH}"
COPY --from=build /usr/local/go/ /usr/local/go/
COPY --from=build /go/bin/ /home/vscode/go/bin

Rust

# syntax=docker/dockerfile:1
ENV PATH="$HOME/.cargo/bin:$PATH"

RUN set -o pipefail \
    && curl --retry 3 --retry-delay 2 --max-time 30 -sSfL https://sh.rustup.rs | sh -s -- -y