Added wait-for-postgres, changed docker-compose files

docker-compose.dev.yml

@@ -1,6 +1,6 @@
 version: '2'
 services:
   webapp:
-    entrypoint: /bin/bash -c "chmod +x /webodm/*.sh && /bin/bash -c \"/webodm/wait-for-it.sh db:5432 -- /webodm/start.sh --create-default-pnode --setup-devenv\""
+    entrypoint: /bin/bash -c "chmod +x /webodm/*.sh && /bin/bash -c \"/webodm/wait-for-postgres.sh db /webodm/start.sh --create-default-pnode --setup-devenv\""
     volumes:
       - .:/webodm

docker-compose.nodeodm.yml

@@ -5,7 +5,7 @@
 version: '2'
 services:
   webapp:
-    entrypoint: /bin/bash -c "chmod +x /webodm/*.sh && /bin/bash -c \"/webodm/wait-for-it.sh db:5432 -- /webodm/start.sh --create-default-pnode\""
+    entrypoint: /bin/bash -c "chmod +x /webodm/*.sh && /bin/bash -c \"/webodm/wait-for-postgres.sh db /webodm/start.sh --create-default-pnode\""
     depends_on:
       - node-odm-1
   node-odm-1:

docker-compose.yml

@@ -17,7 +17,7 @@ services:
   webapp:
     image: opendronemap/webodm_webapp
     container_name: webapp
-    entrypoint: /bin/bash -c "chmod +x /webodm/*.sh && /bin/bash -c \"/webodm/wait-for-it.sh db:5432 -- /webodm/start.sh\""
+    entrypoint: /bin/bash -c "chmod +x /webodm/*.sh && /bin/bash -c \"/webodm/wait-for-postgres.sh db /webodm/start.sh\""
     volumes:
       - ${WO_MEDIA_DIR}:/webodm/app/media
     ports:

wait-for-postgres.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+set -e
+
+host="$1"
+shift
+cmd="$@"
+
+until psql -h "$host" -U "postgres" -c '\q'; do
+  >&2 echo "Postgres is unavailable - sleeping"
+  sleep 1
+done
+
+>&2 echo "Postgres is up - executing command"
+exec $cmd