partial readme + gunicorn(worker-class) edit

README.md

@@ -155,3 +155,50 @@ see new service in #7
 see #9
 
 # Usage
+
+## Test locally using docker swarm
+
+Initialize swarm & stack:
+
+```bash
+docker swarm init                               # initialize swarm
+# build images
+    docker build core/ --cache-from registry.gitlab.eox.at/esa/prism/vs/pvs_core -t registry.gitlab.eox.at/esa/prism/vs/pvs_core
+    docker build cache/ --cache-from registry.gitlab.eox.at/esa/prism/vs/pvs_cache -t registry.gitlab.eox.at/esa/prism/vs/pvs_cache
+    docker build preprocessor/ --cache-from registry.gitlab.eox.at/esa/prism/vs/pvs_preprocessor -t registry.gitlab.eox.at/esa/prism/vs/pvs_preprocessor
+    docker build client/ --cache-from registry.gitlab.eox.at/esa/prism/vs/pvs_client -t registry.gitlab.eox.at/esa/prism/vs/pvs_client
+#or
+    docker login -u {DOCKER_USER} -p {DOCKER_PASSWORD} registry.gitlab.eox.at
+    docker pull registry.gitlab.eox.at/esa/prism/vs/pvs_core
+    docker pull registry.gitlab.eox.at/esa/prism/vs/pvs_cache
+    docker pull registry.gitlab.eox.at/esa/prism/vs/pvs_preprocessor
+    docker pull registry.gitlab.eox.at/esa/prism/vs/pvs_client
+docker stack deploy -c docker-compose.vhr18.yml -c docker-compose.vhr18.dev.yml vhr18-pvs  # start VHR_IMAGE_2018 stack in dev mode, for example to use local sources
+docker stack deploy -c docker-compose.emg.yml -c docker-compose.emg.dev.yml emg-pvs  # start Emergency stack in dev mode, for example to use local sources
+
+docker exec -it $(docker ps -qf "name=vhr18-pvs_renderer") /bin/bash
+cd /var/www/pvs/dev/pvs_instance
+python manage.py runserver 0.0.0.0:8080
+
+```
+Tear town stack including data:
+
+```bash
+docker stack rm vhr18-pvs                      # stop stack
+docker volume rm vhr18-pvs_db-data                        # delete volumes
+docker volume rm vhr18-pvs_redis-data
+docker volume rm vhr18-pvs_traefik-data
+docker volume rm vhr18-pvs_cache-db
+```
+
+Generate mapcache.sqlite
+
+```bash
+docker exec -it $(docker ps -qf "name=vhr18-pvs_renderer") python3 /var/www/pvs/dev/pvs_instance/manage.py mapcache sync -f
+docker exec -it $(docker ps -qf "name=vhr18-pvs_renderer") mv VHR_IMAGE_2018.sqlite /cache-db/vhr18_mapcache_cache.sqlite
+
+docker exec -it $(docker ps -qf "name=emg-pvs_renderer") python3 /var/www/pvs/dev/pvs_instance/manage.py mapcache sync -f
+docker exec -it $(docker ps -qf "name=emg-pvs_renderer") mv Emergency.sqlite /cache-db/emg_mapcache_cache.sqlite
+```
+
+

core/run-httpd.sh

@@ -2,4 +2,4 @@
 
 
 echo "Running gunicorn"
-exec gunicorn --chdir ${INSTALL_DIR}/pvs_instance/ --bind :80 pvs_instance.wsgi:application --workers 8 --timeout 600 --access-logfile - --error-logfile - --log-level warning --disable-redirect-access-to-syslog
+exec gunicorn --chdir ${INSTALL_DIR}/pvs_instance/ --bind :80 pvs_instance.wsgi:application --workers 8 --worker-class sync --timeout 600 --access-logfile - --error-logfile - --log-level warning --disable-redirect-access-to-syslog