Build a smaller ruby image

2 files changed, 17 insertions, 7 deletions

diff --git a/Dockerfile b/Dockerfile
index 56d367c..e1dddad 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,11 @@
-FROM debian:stable-slim
+FROM debian:stable-slim as ruby-builder
+ENV PATH="/opt/ruby/bin:${HOME}/.local/bin:${PATH}"
 WORKDIR /root
 COPY config /root
 RUN bash /root/install.sh
+
+FROM debian:stable-slim
+ENV PATH="/opt/ruby/bin:${HOME}/.local/bin:${PATH}"
+ENV RUBYLIB="/opt/spandx-gitlab/lib"
+RUN apt-get update -y && apt-get install -y libgdbm6 wget libssl1.1 libyaml-0-2 libreadline7
+COPY --from=ruby-builder /opt/ruby /opt/ruby
diff --git a/config/install.sh b/config/install.sh
index eadeca6..554188c 100644
--- a/config/install.sh
+++ b/config/install.sh
@@ -6,18 +6,21 @@ export DEBIAN_FRONTEND=noninteractive
 apt-get clean
 apt-get update -q
 apt-get install -y wget apt-utils libedit2 git
-apt-get install -y autoconf bison build-essential libssl-dev libyaml-dev libreadline6-dev zlib1g-dev libncurses5-dev libffi-dev libgdbm6 libgdbm-dev
+apt-get install -y autoconf bison build-essential libssl-dev libyaml-dev libreadline-dev zlib1g-dev libncurses5-dev libffi-dev libgdbm6 libgdbm-dev
 
 cd /root
 wget https://cache.ruby-lang.org/pub/ruby/2.7/ruby-2.7.1.tar.gz
 tar -xf ruby-2.7.1.tar.gz
 cd ruby-2.7.1
-
-./configure --disable-install-doc --disable-install-rdoc --disable-install-capi --disable-dln --with-static-linked-ext --without-valgrind --disable-jit-support
+./configure --prefix=/opt/ruby --disable-install-doc --disable-install-rdoc --disable-install-capi --disable-dln --with-static-linked-ext --without-valgrind --disable-jit-support --disable-rubygems
 make -j"$(nproc)"
 make install
+rm -r /opt/ruby/share
+
 cd /root
-rm -fr ruby-2.7.1*
-gem update --system
-gem install bundler -v '~> 2.0'
+wget https://rubygems.org/rubygems/rubygems-3.1.2.tgz
+tar -xf rubygems-3.1.2.tgz
+cd rubygems-3.1.2
+ruby setup.rb
+gem install spandx
 echo "Done"