heroku: add WORKERS to env vars

README.md

@@ -125,7 +125,7 @@ write_files:
 runcmd:
   - update-ca-certificates
   - pip install git+https://git.pictuga.com/pictuga/morss.git#egg=morss[full]
-  - gunicorn --bind 0.0.0.0:${PORT:-8000} --workers 4 --worker-class=gevent --preload --access-logfile - morss
+  - gunicorn --bind 0.0.0.0:${PORT:-8000} --workers ${WORKERS:-4} --worker-class=gevent --preload --access-logfile - morss
 ```
 
 ## Run
@@ -393,6 +393,7 @@ debugging.
 - `IGNORE_SSL=1`: to ignore SSL certs when fetch feeds and articles
 - `DELAY` (seconds) sets the browser cache delay, only for HTTP clients
 - `TIMEOUT` (seconds) sets the HTTP timeout when fetching rss feeds and articles
+- `WORKERS` (number) sets the number of gunicorn workers to use
 
 When parsing long feeds, with a lot of items (100+), morss might take a lot of
 time to parse it, or might even run into a memory overflow on some shared

app.json

@@ -1 +1,21 @@
-{"stack": "container"}
+{
+	"stack": "container",
+	"env": {
+		"DEBUG": {
+			"value": 1,
+			"required": false
+		},
+		"WORKERS": {
+			"value": 4,
+			"required": false
+		},
+		"CACHE": {
+			"value": "diskcache",
+			"required": false
+		},
+		"CACHE_SIZE": {
+			"value": 1073741824,
+			"required": false
+		}
+	}
+}

docker-entry.sh

@@ -4,7 +4,7 @@ if [ "$1" = "sh" ] || [ "$1" = "bash" ]; then
 	exec $@
 
 elif [ -z "$1" ] || [ "$@" = "run" ]; then
-	gunicorn --bind 0.0.0.0:${PORT:-8000} --workers 4 --worker-class=gevent --preload --access-logfile - morss
+	gunicorn --bind 0.0.0.0:${PORT:-8000} --workers ${WORKERS:-4} --worker-class=gevent --preload --access-logfile - morss
 
 else
 	morss $@

heroku.yml

@@ -1,9 +1,3 @@
-setup:
-  config:
-    DEBUG: 1
-    CACHE: diskcache
-    CACHE_SIZE: 1073741824
-
 build: 
   docker:
     web: Dockerfile