Adding docker compose and instructions to run via docker

.gitignore

@@ -14,3 +14,5 @@ node_modules
 target
 *.log
 bcp-build.json
+docker/*/*.jar
+docker/*/Dockerfile

build.gradle

@@ -1,6 +0,0 @@
-subprojects {
-    configurations.all {
-        // check for updates every build
-        resolutionStrategy.cacheChangingModulesFor 0, 'seconds'
-    }
-}

docker/build-run.sh

@@ -0,0 +1,45 @@
+#!/usr/bin/env bash
+
+RELEASE_VERSION=${1-snapshot}
+IP=${2-}
+# Add a colon if IP is set, we want <host_ip>:<host_port:<container_port> or <host_port:<container_port>
+if [ -n "$IP" ]
+then
+IP=${IP}:
+fi
+
+echo "================== Config ======================="
+echo " RELEASE_VERSION: $RELEASE_VERSION"
+echo " IP: $IP"
+echo "================================================="
+
+SCRIPT_DIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
+
+# Create Dockerfile for consumer and producer
+sed "s|{RELEASE_VERSION}|$RELEASE_VERSION|g;" $SCRIPT_DIR/consumer/Dockerfile.template > $SCRIPT_DIR/consumer/Dockerfile
+sed "s|{RELEASE_VERSION}|$RELEASE_VERSION|g;" $SCRIPT_DIR/producer/Dockerfile.template > $SCRIPT_DIR/producer/Dockerfile
+
+cd ..
+
+./gradlew :gr8-rest-producer:clean :gr8-rest-producer:assemble
+cp -rf gr8-rest-producer/build/libs/gr8-rest-producer-0.1.jar docker/producer
+./gradlew :gr8-rest-consumer:clean :gr8-rest-consumer:assemble
+cp -rf gr8-rest-consumer/build/libs/gr8-rest-consumer-0.1.jar docker/consumer
+
+cd docker
+
+#Optional if already running
+docker-machine start
+
+eval `docker-machine env default`
+
+# Cleanup any existing containers and delete their volumes.
+docker-compose -f $SCRIPT_DIR/docker-compose.yml kill
+docker-compose -f $SCRIPT_DIR/docker-compose.yml rm --force  # Not using -v flag to preserve volumes between deploys
+
+# create and run all containers
+docker-compose -f $SCRIPT_DIR/docker-compose.yml build
+docker-compose -f $SCRIPT_DIR/docker-compose.yml up -d
+
+# Scale kafka to 3
+docker-compose -f $SCRIPT_DIR/docker-compose.yml scale kafka=3

docker/consumer/Dockerfile.template

@@ -0,0 +1,12 @@
+FROM java:openjdk-8u91-jdk
+
+EXPOSE 8282
+
+ADD bin/wait-for-it.sh /wait-for-it.sh
+
+# FIXME: fix /app volume issue with jdk base image.
+RUN mkdir -p /consumer && mkdir -p /producer
+
+ADD gr8-rest-consumer-0.1.jar /consumer/consumer.jar
+
+CMD /bin/sh -c "/wait-for-it.sh redis:6379 --strict && /wait-for-it.sh kafka:9092 --strict && java -jar /consumer/consumer.jar --spring.profiles.active=docker"

docker/consumer/bin/wait-for-it.sh

@@ -0,0 +1,160 @@
+#!/usr/bin/env bash
+#   Use this script to test if a given TCP host/port are available
+# Note: From https://github.com/vishnubob/wait-for-it/blob/20c60949dedb74a34b06cb954ddd0d71a3c1c769/wait-for-it.sh
+
+cmdname=$(basename $0)
+
+echoerr() { if [[ $QUIET -ne 1 ]]; then echo "$@" 1>&2; fi }
+
+usage()
+{
+    cat << USAGE >&2
+Usage:
+    $cmdname host:port [-s] [-t timeout] [-- command args]
+    -h HOST | --host=HOST       Host or IP under test
+    -p PORT | --port=PORT       TCP port under test
+                                Alternatively, you specify the host and port as host:port
+    -s | --strict               Only execute subcommand if the test succeeds
+    -q | --quiet                Don't output any status messages
+    -t TIMEOUT | --timeout=TIMEOUT
+                                Timeout in seconds, zero for no timeout
+    -- COMMAND ARGS             Execute command with args after the test finishes
+USAGE
+    exit 1
+}
+
+wait_for()
+{
+    if [[ $TIMEOUT -gt 0 ]]; then
+        echoerr "$cmdname: waiting $TIMEOUT seconds for $HOST:$PORT"
+    else
+        echoerr "$cmdname: waiting for $HOST:$PORT without a timeout"
+    fi
+    start_ts=$(date +%s)
+    while :
+    do
+        (echo > /dev/tcp/$HOST/$PORT) >/dev/null 2>&1
+        result=$?
+        if [[ $result -eq 0 ]]; then
+            end_ts=$(date +%s)
+            echoerr "$cmdname: $HOST:$PORT is available after $((end_ts - start_ts)) seconds"
+            break
+        fi
+        sleep 1
+    done
+    return $result
+}
+
+wait_for_wrapper()
+{
+    # In order to support SIGINT during timeout: http://unix.stackexchange.com/a/57692
+    if [[ $QUIET -eq 1 ]]; then
+        timeout $TIMEOUT $0 --quiet --child --host=$HOST --port=$PORT --timeout=$TIMEOUT &
+    else
+        timeout $TIMEOUT $0 --child --host=$HOST --port=$PORT --timeout=$TIMEOUT &
+    fi
+    PID=$!
+    trap "kill -INT -$PID" INT
+    wait $PID
+    RESULT=$?
+    if [[ $RESULT -ne 0 ]]; then
+        echoerr "$cmdname: timeout occurred after waiting $TIMEOUT seconds for $HOST:$PORT"
+    fi
+    return $RESULT
+}
+
+# process arguments
+while [[ $# -gt 0 ]]
+do
+    case "$1" in
+        *:* )
+        hostport=(${1//:/ })
+        HOST=${hostport[0]}
+        PORT=${hostport[1]}
+        shift 1
+        ;;
+        --child)
+        CHILD=1
+        shift 1
+        ;;
+        -q | --quiet)
+        QUIET=1
+        shift 1
+        ;;
+        -s | --strict)
+        STRICT=1
+        shift 1
+        ;;
+        -h)
+        HOST="$2"
+        if [[ $HOST == "" ]]; then break; fi
+        shift 2
+        ;;
+        --host=*)
+        HOST="${1#*=}"
+        shift 1
+        ;;
+        -p)
+        PORT="$2"
+        if [[ $PORT == "" ]]; then break; fi
+        shift 2
+        ;;
+        --port=*)
+        PORT="${1#*=}"
+        shift 1
+        ;;
+        -t)
+        TIMEOUT="$2"
+        if [[ $TIMEOUT == "" ]]; then break; fi
+        shift 2
+        ;;
+        --timeout=*)
+        TIMEOUT="${1#*=}"
+        shift 1
+        ;;
+        --)
+        shift
+        CLI="$@"
+        break
+        ;;
+        --help)
+        usage
+        ;;
+        *)
+        echoerr "Unknown argument: $1"
+        usage
+        ;;
+    esac
+done
+
+if [[ "$HOST" == "" || "$PORT" == "" ]]; then
+    echoerr "Error: you need to provide a host and port to test."
+    usage
+fi
+
+TIMEOUT=${TIMEOUT:-15}
+STRICT=${STRICT:-0}
+CHILD=${CHILD:-0}
+QUIET=${QUIET:-0}
+
+if [[ $CHILD -gt 0 ]]; then
+    RESULT=$(wait_for)
+    exit $RESULT
+else
+    if [[ $TIMEOUT -gt 0 ]]; then
+        wait_for_wrapper
+        RESULT=$?
+    else
+        RESULT=$(wait_for)
+    fi
+fi
+
+if [[ $CLI != "" ]]; then
+    if [[ $RESULT -ne 0 && $STRICT -eq 1 ]]; then
+        echoerr "$cmdname: strict mode, refusing to execute subprocess"
+        exit $RESULT
+    fi
+    exec $CLI
+else
+    exit $RESULT
+fi

docker/docker-compose.yml

@@ -0,0 +1,43 @@
+consumer:
+  build: consumer
+  ports:
+    - "${IP}8282:8282"
+  links:
+    - redis:redis
+    - kafka:kafka
+    - zookeeper:zk
+    - rabbitmq:rabbit
+
+producer:
+  build: producer
+  ports:
+    - "${IP}8080:8080"
+  links:
+    - redis:redis
+    - kafka:kafka
+    - zookeeper:zk
+    - rabbitmq:rabbit
+
+redis:
+  image: redis:3.0.7-alpine
+
+zookeeper:
+  image: wurstmeister/zookeeper:3.4.6
+  ports:
+    - "2181"
+kafka:
+  image: wurstmeister/kafka:0.9.0.0-1
+  ports:
+    - "9092"
+  links:
+    - zookeeper:zk
+  environment:
+    HOSTNAME_COMMAND: "route -n | awk '/UG[ \t]/{print $$2}'"
+  privileged: true # Needed for SELinux
+  volumes:
+    - /var/run/docker.sock:/var/run/docker.sock
+rabbitmq:
+  image: bijukunjummen/rabbitmq-server
+  ports:
+    - "5672:5672"
+    - "15672:15672"

docker/producer/Dockerfile.template

@@ -0,0 +1,12 @@
+FROM java:openjdk-8u91-jdk
+
+EXPOSE 8080
+
+ADD bin/wait-for-it.sh /wait-for-it.sh
+
+# FIXME: fix /app volume issue with jdk base image.
+RUN mkdir -p /consumer && mkdir -p /producer
+
+ADD gr8-rest-producer-0.1.jar /producer/producer.jar
+
+CMD /bin/sh -c "/wait-for-it.sh redis:6379 --strict && /wait-for-it.sh kafka:9092 --strict && java -jar /producer/producer.jar --spring.profiles.active=docker"