59 lines
1.9 KiB
Docker
59 lines
1.9 KiB
Docker
# Building this Dockerfile executes a full build of the Recovery Tool, cross-compiling inside
|
|
# the container. The resulting executable is copied to the output directory using Docker BuildKit.
|
|
|
|
# You need to pass 3 parameters via --build-arg:
|
|
# 1. `os` : the GOOS env var -- `linux`, `windows` or `darwin`.
|
|
# 2. `arch`: the GOARCH env var -- `386` or `amd64` (note that darwin/386 is not a thing).
|
|
# 3. `cc` : the CC env var -- a C compiler for CGO to use, empty to use the default.
|
|
# 4. `out` : the name of the resulting executable, placed in the output directory on the host.
|
|
|
|
# For example, to build a linux/386 binary into `bin/rt`:
|
|
# docker build . --output bin --build-arg os=linux --build-arg arch=386 --build-arg out=rt
|
|
|
|
# Note that the --output <dir> flag refers to the host, outside the container.
|
|
|
|
# --------------------------------------------------------------------------------------------------
|
|
|
|
FROM ubuntu:22.04 AS rtool-build-base
|
|
|
|
# Avoid prompts during package installation:
|
|
ENV DEBIAN_FRONTEND="noninteractive"
|
|
|
|
# Upgrade indices:
|
|
RUN apt-get update
|
|
|
|
# Install the various compilers we're going to use, with specific versions:
|
|
RUN apt-get install -y \
|
|
golang-1.18-go=1.18.1-1ubuntu1 \
|
|
gcc-mingw-w64=10.3.0-14ubuntu1+24.3 \
|
|
gcc-multilib=4:11.2.0-1ubuntu1 \
|
|
git=1:2.34.1-1ubuntu1
|
|
|
|
# Copy the source code into the container:
|
|
WORKDIR /src
|
|
COPY . .
|
|
|
|
RUN /bin/bash
|
|
|
|
# --------------------------------------------------------------------------------------------------
|
|
|
|
FROM rtool-build-base AS rtool-build
|
|
ARG os
|
|
ARG arch
|
|
ARG cc
|
|
|
|
# Enable and configure C support:
|
|
ENV CGO_ENABLED=1
|
|
ENV GO386=softfloat
|
|
|
|
# Do the thing:
|
|
RUN env GOOS=${os} GOARCH=${arch} CC=${cc} /usr/lib/go-1.18/bin/go build -mod=vendor -a -trimpath -o /out .
|
|
|
|
# --------------------------------------------------------------------------------------------------
|
|
|
|
FROM scratch
|
|
ARG out
|
|
|
|
# Copy the resulting executable back to the host:
|
|
COPY --from=rtool-build /out ${out}
|