X-Git-Url: https://git.arvados.org/arvados-workbench2.git/blobdiff_plain/8f5943cbb10f0723363981b9b10143ea50f605d2..a1e2b8ba77e4a7273940a3fc542bc42e282618a7:/README.md

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--- a/README.md
+++ b/README.md
@@ -26,6 +26,29 @@ yarn install
 yarn build
 </pre>
 
+### Build time configuration
+You can customize project global variables using env variables. Default values are placed in the `.env` file.
+
+Example:
+```
+REACT_APP_ARVADOS_CONFIG_URL=config.json yarn build
+```
+
+### Run time configuration
+The app will fetch runtime configuration when starting. By default it will try to fetch `/config.json`. You can customize this url using build time configuration.
+
+Currently this configuration schema is supported:
+```
+{
+    "API_HOST": "string",
+    "VOCABULARY_URL": "string"
+}
+```
+
+#### VOCABULARY_URL
+Local path, or any URL that allows cross-origin requests. See 
+[Vocabulary JSON file example](public/vocabulary-example.json).
+
 ### Licensing
 
 Arvados is Free Software. See COPYING for information about Arvados Free