Feature/improve run iroha dev (hyperledger-iroha#1115)

PR hyperledger-iroha#1115 changes the behavior of run-iroha-dev.sh and introduces stop-iroha-dev.sh.

Changes:
- Each user within a system can run own docker container
- Introduced script for full shutdown of container environment - stop-iroha-dev.sh
- Now it is possible to reenter into the container without its recreation
- run-iroha-dev.sh reports ports used on the host system for Iroha and debugger

 run-iroha-dev.sh now automatically picks first free port from
  range 50051-50101 on host system for Iroha and free port from
  range 20000-20100 on the host system for Debugger

Signed-off-by: Igor Egorov <[email protected]>

docker/docker-compose.yml

@@ -4,8 +4,8 @@ services:
   node:
     image: hyperledger/iroha-docker-develop:v1
     ports:
-      - "50051:50051"
-      - "20000:20000"
+      - "${IROHA_PORT}:50051"
+      - "${DEBUGGER_PORT}:20000"
     environment:
       - IROHA_POSTGRES_HOST=${COMPOSE_PROJECT_NAME}_postgres_1
       - IROHA_POSTGRES_PORT=5432

scripts/run-iroha-dev.sh

@@ -1,12 +1,33 @@
 #!/bin/bash
+
+function next_free_port {
+for port in $(seq $1 $2);
+    do echo -ne "\035" | nc 127.0.0.1 $port > /dev/null 2>&1; [ $? -eq 1 ] && echo "$port" && break;
+done
+}
+
 CURDIR="$(cd "$(dirname "$0")"; pwd)"
 IROHA_HOME="$(dirname "${CURDIR}")"
-PROJECT=iroha${USERID}
+PROJECT=iroha${UID}
 COMPOSE=${IROHA_HOME}/docker/docker-compose.yml
 
 export G_ID=$(id -g)
 export U_ID=$(id -u)
 export COMPOSE_PROJECT_NAME=${PROJECT}
 
-docker-compose -f ${COMPOSE} up -d
+if [ $(docker ps -q -f name=${PROJECT}_node_1 | wc -c) -eq 0 ];
+then
+    export IROHA_PORT="$(next_free_port 50051 50101)"
+    export DEBUGGER_PORT="$(next_free_port 20000 20100)"
+
+    docker-compose -f ${COMPOSE} up -d
+else
+    IROHA_DBG_PORTS="$(docker port ${PROJECT}_node_1 | sed 's/\(.*\)://' | sort -r | sed -e :a -e N -e 's/\n/:/p' -e ta)"
+    export IROHA_PORT="$(echo ${IROHA_DBG_PORTS} | sed 's/:.*//')"
+    export DEBUGGER_PORT="$(echo ${IROHA_DBG_PORTS} | sed 's/.*://')"
+fi
+echo ""
+echo "Iroha is mapped to host port ${IROHA_PORT}"
+echo "Debugger is mapped to host port ${DEBUGGER_PORT}"
+echo ""
 docker-compose -f ${COMPOSE} exec node /bin/bash

scripts/stop-iroha-dev.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+CURDIR="$(cd "$(dirname "$0")"; pwd)"
+IROHA_HOME="$(dirname "${CURDIR}")"
+PROJECT=iroha${UID}
+COMPOSE=${IROHA_HOME}/docker/docker-compose.yml
+
+# actual values of are not needed here, but variables need to be defined
+export IROHA_PORT=1
+export DEBUGGER_PORT=2
+
+docker-compose -f ${COMPOSE} -p ${PROJECT} down