Merge pull request #49 from torresashjian/master

Document flogo environment variables

Author: torresashjian

docs/_data/docs.yml

@@ -4,7 +4,7 @@
       title: Getting started with the Web UI
     - id: getting-started-cli
       title: Getting started with the CLI
-- title: Extenions Developer
+- title: Extensions Developer
   items:
     - id: create-activity
       title: Building your first activity
@@ -14,3 +14,7 @@
   items:
     - id: contribute-docs
       title: Contribute to Docs
+- title: Configuration
+  items:
+    - id: environment-vars
+      title: Environment variables

docs/docs/environment-vars.md

@@ -0,0 +1,17 @@
+---
+layout: page
+title: “Environment variables”
+category: guide
+---
+
+List of environment variables to configure the flogo engine
+
+| Environment name      | Default value             | Info                                      |
+| --------------------- |:-------------------------:|------------------------------------------ |
+| FLOGO_LOG_DTFORMAT    | "2006-01-02 15:04:05.000" | Sets the log date and time format         |
+| FLOGO_LOG_LEVEL       | "INFO"                    | Sets the log level                        |
+| FLOGO_RUNNER_TYPE     | "POOLED"                  | Sets the type of the runner               |
+| FLOGO_RUNNER_WORKERS  | 5                         | Sets the number of workers                |
+| FLOGO_RUNNER_QUEUE    | 50                        | Sets the runner queue size                |
+| FLOGO_CONFIG_PATH     | "flogo.json"              | Sets the path of the config json file     |
+| STOP_ENGINE_ON_ERROR  | true                      | Sets whether to stop the engine on error  |