fix(dev-env): handle error on first boot (#1407)

Author: hgw77

docker/Dockerfile.dev

@@ -63,12 +63,13 @@ WORKDIR /app
 VOLUME /app
 
 ################### POSTGRESQL
-ENV PGDATA /app/tmp/postgresql/data
+ENV PGDATA="/app/tmp/postgresql/data"
 
 # fixed bundler version because latest version 2.3.21 produces errors when resolving dependencies 
 # or an endless loop when the gem directory needs to be rebuilt
 RUN gem install bundler -v 2.3.20 && bundle config set --local path 'vendor/bundle'
 RUN echo -e '#!/bin/bash\n\n\
+  set -e \n\
   bundle install \n\
   yarn \n\
   mkdir -p "$PGDATA" && chown -R postgres:postgres "$PGDATA"\n\