Improvements to gte command: flags for --fg (don't detach), --rabbitm…

…q (run rabbitmq and link), can pass in other docker arguments and startup commands

Examples:

./gte
    Pass in which gte environment to spin up:
    101.1.1
    201.1.1
    ...

./gte -it 201.1.1 bash
    Removing old containers
    a1a5f15114f6
    Starting container tier/gte:201.1.1-202102
    grouperContainer; INFO: (library.sh) Start loading library.sh
    ...
    grouperContainer; INFO: (entrypoint.sh) Executing bash
    [root@f49a43dff360 WEB-INF]#

./gte --fg 201.1.1 ping rabbitmq
    Removing old containers
    b6df1e95053c
    Starting container tier/gte:201.1.1-202102
    grouperContainer; INFO: (library.sh) Start loading library.sh
    ...
    grouperContainer; INFO: (entrypoint.sh) Executing ping rabbitmq
    ping: rabbitmq: Name or service not known

./gte --fg --rabbitmq 201.1.1 ping rabbitmq
    Removing old containers
    f49a43dff360
    Removing any old rabbitmq containers
    Starting container rabbitmq:management
    14ea18b53c1f11f52ff29e8f2c7e176fec510b45a5ecc774f4664280702c24fa
    Starting container tier/gte:201.1.1-202102
    grouperContainer; INFO: (library.sh) Start loading library.sh
    ...
    grouperContainer; INFO: (entrypoint.sh) Executing ping rabbitmq
    PING rabbitmq (192.168.16.2) 56(84) bytes of data.
    64 bytes from rabbitmq (192.168.16.2): icmp_seq=1 ttl=64 time=0.110 ms
    64 bytes from rabbitmq (192.168.16.2): icmp_seq=2 ttl=64 time=0.110 ms

gte

@@ -1,10 +1,43 @@
 #! /bin/bash
-
+
+VERSION_TAG=202102
+
+EXTRA_ARGS=
+RABBITMQ_FL=
+
+show_help() {
+  echo "$0 [--rabbitmq] [--fg|-it] [docker args ...] <gte lesson id> [container cmd ...]"
+  echo "    --rabbitmq:    also start up a rabbitmq container, and link it as name 'rabbitmq'"
+  echo "    --fg:          Don't detach (i.e., don't run container with -d flag"
+  echo "    -h|--help:     This help message"
+  echo ""
+  echo "If no GTE lesson id number is passed in, the command will list all the available ids"
+}
+
+for arg in $*; do
+  case $arg in
+        --rabbitmq) EXTRA_ARGS="$EXTRA_ARGS --link rabbitmq:rabbitmq"; RABBITMQ_FL=1; shift;;
+        --fg) is_foreground=1; shift;;
+        -it) is_foreground=1; EXTRA_ARGS="$EXTRA_ARGS $1"; shift;;
+        -h|--help) show_help; exit 0;;
+        -*) EXTRA_ARGS="$EXTRA_ARGS $1"; shift;;
+        *) break;;
+  esac
+done
+
+#echo args=$*
+#echo EXTRA_ARGS=$EXTRA_ARGS
+#echo RABBITMQ_FL=$RABBITMQ
+
+if [ "$is_foreground" != 1 ]; then
+  EXTRA_ARGS="$EXTRA_ARGS -d"
+fi
+
 if [ -z "$1" ]
   then
     #docker images tier/gte
     echo "Pass in which gte environment to spin up:"
-    my_array=( $( docker images | grep 'tier/gte' | grep -v base | awk '{print $2}' | sort ) )
+    my_array=( $( docker images | grep "tier/gte.*$VERSION_TAG" | grep -v base | awk '{print $2}' | sort ) )
     for i in "${my_array[@]}"
     do
       # strip last 7 chars (-202102)
@@ -14,21 +47,31 @@ if [ -z "$1" ]
     exit 1
 fi
 
-# remove rabbitmq and all gte containers
-docker rm -f rabbitmq 2> /dev/null
+LESSON_ID=$1
+shift
+
 
 # see if there is a container
 CONTAINER="$( docker ps -a | grep 'tier/gte' | awk '{print $1}' )"
 # if so, then rm it
 if [ ! -z "$CONTAINER" ]; then
+  echo "Removing old containers"
   docker ps -a | grep 'tier/gte' | awk '{print $1}' | xargs docker rm -f
 fi
 
-DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
-$DIR/start-rabbitmq.sh
+if [ "$RABBITMQ_FL" == 1 ]; then
+  echo Removing any old rabbitmq containers
+  docker rm -f rabbitmq 2> /dev/null
+  #DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+  #$DIR/start-rabbitmq.sh
+  echo "Starting container rabbitmq:management"
+  docker run -d -p 15672:15672 --env RABBITMQ_NODENAME=docker-rabbit --hostname rabbitmq --name=rabbitmq rabbitmq:management
+fi
 
 # lets see which 
 
 #docker stop "$1" 2> /dev/null
 #docker rm "$1" 2> /dev/null
-docker run -d -p 8443:443 --link rabbitmq:rabbitmq --name $1 tier/gte:"$1"-202102
+#docker run -d -p 8443:443 --link rabbitmq:rabbitmq --name $1 tier/gte:"$1"-202102
+echo "Starting container tier/gte:"$LESSON_ID"-$VERSION_TAG"
+docker run -p 8443:443 $EXTRA_ARGS --name $LESSON_ID tier/gte:"$LESSON_ID"-$VERSION_TAG $*