# Build environment image
# Do the following to build and run:
#   docker build -t bld-centos-7 .
# Once image is built, you can run it:
#   docker run -it bld-centos-7 /bin/bash
# The same, but with mounted 'proj' folder:
#   docker run -it --mount type=bind,source="$(pwd)"/proj,target=/proj bld-centos-7 /bin/bash
# The same, also initializes systemd and maps gopath's src into /goproj/src:
# docker run -d -e=container=docker --stop-signal=SIGRTMIN+3 --cap-add=SYS_ADMIN --security-opt=seccomp:unconfined -v /sys/fs/cgroup:/sys/fs/cgroup:ro --mount type=bind,source=$GOPATH/src,target=/goproj/src bld-centos-7 /sbin/init


FROM centos:7

RUN echo "Install build environment software..."

RUN yum install -y screen tcpdump make
# RPM development
RUN yum install -y rpmdevtools rpm-build
RUN yum clean all

# Install Go 1.10
RUN curl -s https://dl.google.com/go/go1.10.linux-amd64.tar.gz > /go1.10.linux-amd64.tar.gz
RUN tar xfz /go1.10.linux-amd64.tar.gz
RUN mv /go /opt/go
RUN rm /go1.10.linux-amd64.tar.gz
# Set go dir
ENV GOROOT /opt/go
RUN mkdir /goproj
ENV GOPATH /goproj
# Set up system-wide PATH variables in the global profile
RUN echo 'export PATH=$PATH:/opt/go/bin' > /etc/profile.d/go.sh

RUN echo "Installation completed"