feat: Add solrwayback Dockerfile

This commit adds a Dockerfile to be able to run solrwayback
WAR image from the solrwayback bundle in a vanilla tomcat
container.

Dockerfile.solrwayback

@@ -0,0 +1,29 @@
+# This dockerfile configures a vanilla container with
+# solrwayback installed and configured with properties
+# from solrwayback bundle.
+
+ARG SOLRWAYBACK_VERSION=4.4.2
+ARG SOLRWAYBACK_CHECKSUM=41c1f7ecebc15aade23eb8735db2ab6d
+ARG SOLRWAYBACK_TOMCAT_VERSION=8.5.60
+ARG TOMCAT_TAG=8.5-jdk8-temurin-focal
+
+FROM busybox as solrwayback
+
+WORKDIR /build
+
+ARG SOLRWAYBACK_VERSION
+ARG SOLRWAYBACK_CHECKSUM
+ARG SOLRWAYBACK_RELEASE_URL=https://github.com/netarchivesuite/solrwayback/releases/download/${SOLRWAYBACK_VERSION}/solrwayback_package_${SOLRWAYBACK_VERSION}.zip
+
+RUN wget -q -O bundle.zip ${SOLRWAYBACK_RELEASE_URL} \
+&& echo "${SOLRWAYBACK_CHECKSUM}  bundle.zip" | md5sum -c - \
+&& unzip bundle.zip \
+&& mv solrwayback_package_${SOLRWAYBACK_VERSION} /app \
+&& rm bundle.zip
+
+
+FROM tomcat:${TOMCAT_TAG}
+ARG SOLRWAYBACK_TOMCAT_VERSION
+
+COPY --from=solrwayback /app/apache-tomcat-${SOLRWAYBACK_TOMCAT_VERSION}/webapps/solrwayback.war ${CATALINA_HOME}/webapps/solrwayback.war
+COPY --from=solrwayback /app/properties /root