Setup a Dockerfile for deployment (#26)

* setup dockerfile

.dockerignore

@@ -0,0 +1,2 @@
+Dockerfile
+build

Dockerfile

@@ -0,0 +1,34 @@
+FROM openjdk:8u212-jdk-stretch AS builder
+
+RUN mkdir -p /opt/cassy
+WORKDIR /opt/cassy
+
+COPY gradle ./gradle
+COPY build.gradle ./
+COPY gradlew ./gradlew
+COPY src ./src
+
+RUN ./gradlew installDist
+
+# Runtime Container
+FROM openjdk:8-alpine
+
+RUN apk add sqlite
+
+WORKDIR /opt/cassy
+
+RUN mkdir -p /cassy/data && mkdir -p /cassy/conf
+
+# Copy Build output from Builder Step
+COPY --from=builder /opt/cassy/build ./build
+COPY scripts ./scripts
+COPY conf ./conf
+
+RUN sqlite3 ./cassy.db < ./scripts/db.schema
+
+VOLUME /cassy
+
+ENTRYPOINT ["/bin/sh", "scripts/entrypoint.sh"]
+CMD ["--config", "/cassy/conf/backup-server.properties"]
+
+EXPOSE 20051

conf/backup-server.properties

@@ -4,5 +4,5 @@ scalar.backup.cassandra.server.ssh_user=<username>
 scalar.backup.cassandra.server.ssh_private_key_path=/path/to/key
 scalar.backup.cassandra.server.slave_command_path=/path/to/bin
 scalar.backup.cassandra.server.storage_base_uri=s3://<some-bucket-name>
-scalar.backup.cassandra.server.metadata_db_url=jdbc:sqlite:<database-name>
+scalar.backup.cassandra.server.metadata_db_url=jdbc:sqlite:/cassy/data/cassy.db
 scalar.backup.cassandra.server.srv_service_url=<srv-service-url>

scripts/entrypoint.sh

@@ -0,0 +1,11 @@
+#!/bin/sh
+
+if [ ! -f /cassy/data/cassy.db ]; then
+   cp cassy.db /cassy/data/;
+fi;
+
+if [ ! -f /cassy/conf/backup-server.properties ]; then
+   cp conf/backup-server.properties /cassy/conf/;
+fi;
+
+build/install/cassy/bin/backup-server $@