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FROM ubuntu:22.04
LABEL BUILD="docker build -t coredhcp/coredhcp -f Dockerfile ."
LABEL RUN="docker run --rm -it coredhcp/coredhcp"
# Install dependencies
RUN apt-get update && \
apt-get install -y --no-install-recommends \
sudo \
iproute2 \
# to fetch the Go toolchain
ca-certificates \
wget \
# for go get
git \
# for CGo support
build-essential \
&& \
rm -rf /var/lib/apt/lists/*
# install Go
WORKDIR /tmp
RUN set -exu; \
wget https://golang.org/dl/go1.23.4.linux-amd64.tar.gz ;\
tar -C / -xvzf go1.23.4.linux-amd64.tar.gz
ENV PATH="$PATH:/go/bin:/build/bin"
ENV GOPATH=/go:/build
ENV PROJDIR=/build/src/github.com/coredhcp/coredhcp
RUN mkdir -p $PROJDIR
COPY . $PROJDIR
# build coredhcp
RUN set -exu ;\
cd $PROJDIR/cmds/coredhcp ;\
go get -v ./... ;\
CGO_ENABLED=1 go build ;\
cp coredhcp /bin
EXPOSE 67/udp
EXPOSE 547/udp
CMD coredhcp --conf /etc/coredhcp/config.yaml
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