Add a basic Dockerfile for the latest 10 snap

See #88

Author: headius

10/VERSION

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+10.0.0.0-SNAPSHOT

10/jdk21/Dockerfile

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+FROM eclipse-temurin:21-jdk-jammy
+
+RUN apt-get update && apt-get install -y libc6-dev make --no-install-recommends && rm -rf /var/lib/apt/lists/*
+
+ENV JRUBY_VERSION 9.4.12.0
+ENV JRUBY_SHA256 e71398d3d404c3f2a3b831039a1bf860ec30108dfc22440b4dc1bfe519ac119b
+RUN mkdir /opt/jruby \
+# restore this line once 10 is released
+#  && curl -fSL https://repo1.maven.org/maven2/org/jruby/jruby-dist/${JRUBY_VERSION}/jruby-dist-${JRUBY_VERSION}-bin.tar.gz -o /tmp/jruby.tar.gz \
+  && curl -fSL https://oss.sonatype.org/content/repositories/snapshots/org/jruby/jruby-dist/10.0.0.0-SNAPSHOT/jruby-dist-10.0.0.0-20250304.210303-3-bin.tar.gz -o /tmp/jruby.tar.gz \
+  && echo "$JRUBY_SHA256 /tmp/jruby.tar.gz" | sha256sum -c - \
+  && tar -zx --strip-components=1 -f /tmp/jruby.tar.gz -C /opt/jruby \
+  && rm /tmp/jruby.tar.gz \
+  && update-alternatives --install /usr/local/bin/ruby ruby /opt/jruby/bin/jruby 1
+ENV PATH /opt/jruby/bin:$PATH
+
+# skip installing gem documentation
+RUN mkdir -p /opt/jruby/etc \
+       && { \
+               echo 'install: --no-document'; \
+               echo 'update: --no-document'; \
+       } >> /opt/jruby/etc/gemrc
+
+RUN gem install bundler rake net-telnet xmlrpc
+
+# don't create ".bundle" in all our apps
+ENV GEM_HOME /usr/local/bundle
+ENV BUNDLE_SILENCE_ROOT_WARNING=1 \
+       BUNDLE_APP_CONFIG="$GEM_HOME"
+ENV PATH $GEM_HOME/bin:$PATH
+# adjust permissions of a few directories for running "gem install" as an arbitrary user
+RUN mkdir -p "$GEM_HOME" && chmod 777 "$GEM_HOME"
+
+CMD [ "irb" ]
+

10/jre21/Dockerfile

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+FROM eclipse-temurin:21-jre-jammy
+
+RUN apt-get update && apt-get install -y libc6-dev make --no-install-recommends && rm -rf /var/lib/apt/lists/*
+
+ENV JRUBY_VERSION 10.0.0.0-SNAPSHOT
+ENV JRUBY_SHA256 e71398d3d404c3f2a3b831039a1bf860ec30108dfc22440b4dc1bfe519ac119b
+RUN mkdir /opt/jruby \
+# restore this line once 10 is released
+#  && curl -fSL https://repo1.maven.org/maven2/org/jruby/jruby-dist/${JRUBY_VERSION}/jruby-dist-${JRUBY_VERSION}-bin.tar.gz -o /tmp/jruby.tar.gz \
+  && curl -fSL https://oss.sonatype.org/content/repositories/snapshots/org/jruby/jruby-dist/10.0.0.0-SNAPSHOT/jruby-dist-10.0.0.0-20250304.210303-3-bin.tar.gz -o /tmp/jruby.tar.gz \
+  && echo "$JRUBY_SHA256 /tmp/jruby.tar.gz" | sha256sum -c - \
+  && tar -zx --strip-components=1 -f /tmp/jruby.tar.gz -C /opt/jruby \
+  && rm /tmp/jruby.tar.gz \
+  && update-alternatives --install /usr/local/bin/ruby ruby /opt/jruby/bin/jruby 1
+ENV PATH /opt/jruby/bin:$PATH
+
+# skip installing gem documentation
+RUN mkdir -p /opt/jruby/etc \
+       && { \
+               echo 'install: --no-document'; \
+               echo 'update: --no-document'; \
+       } >> /opt/jruby/etc/gemrc
+
+RUN gem install bundler rake net-telnet xmlrpc
+
+# don't create ".bundle" in all our apps
+ENV GEM_HOME /usr/local/bundle
+ENV BUNDLE_SILENCE_ROOT_WARNING=1 \
+       BUNDLE_APP_CONFIG="$GEM_HOME"
+ENV PATH $GEM_HOME/bin:$PATH
+# adjust permissions of a few directories for running "gem install" as an arbitrary user
+RUN mkdir -p "$GEM_HOME" && chmod 777 "$GEM_HOME"
+
+CMD [ "irb" ]
+

10/onbuild-jdk8/Dockerfile

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+FROM jruby:9.2-jdk
+
+RUN mkdir -p /usr/src/app
+WORKDIR /usr/src/app
+
+ONBUILD ADD Gemfile /usr/src/app/
+ONBUILD ADD Gemfile.lock /usr/src/app/
+ONBUILD RUN bundle install --system
+
+ONBUILD ADD . /usr/src/app

10/update.sh

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+#!/bin/bash
+
+(
+	set -e
+
+	JRUBY_VERSION=$(< VERSION)
+	SHA="$(curl -SLfs https://repo1.maven.org/maven2/org/jruby/jruby-dist/${JRUBY_VERSION}/jruby-dist-${JRUBY_VERSION}-bin.tar.gz.sha256)"
+	SHA=$(printf '%s' ${SHA})
+
+	for i in $(ls); do
+		if [ -d "$i" ]; then
+			echo setting version on "$i/Dockerfile"
+			sed -i -- "s/ENV\ JRUBY_VERSION.*/ENV JRUBY_VERSION ${JRUBY_VERSION}/" "$i/Dockerfile"
+			sed -i -- "s/ENV\ JRUBY_SHA256.*/ENV JRUBY_SHA256 ${SHA}/" "$i/Dockerfile"
+		fi
+	done
+
+	echo versions updated to $JRUBY_VERSION @ $SHA
+)