feat: add dotenv support (#1333)

* feat: add dotenv support

* docs: add dotenv usage docs

* docs: update docs to clarify default

.gitignore

@@ -38,3 +38,4 @@ docker-compose.test.yml
 .DS_Store
 .idea
 .vscode
+.env

docs/api/server/Environment-Variables.md

@@ -9,6 +9,8 @@ One App can be configured via Environment Variables:
 ## 📖 Table of Contents
 
 **By Topic**
+* Dotenv
+  * [`DOTENV_CONFIG_PATH`](#dotenv_config_path)
 * Network & Protocol Settings
   * [`HTTPS_PORT`](#https_port)
   * [`HTTPS_PRIVATE_KEY_PASS_FILE_PATH`](#https_private_key_pass_file_path)
@@ -94,6 +96,24 @@ One App can be configured via Environment Variables:
 
 > ⚠️ = Required
 
+## `DOTENV_CONFIG_PATH`
+
+One App supports the usage of [Dotenv](https://github.com/motdotla/dotenv). This environment variable allows you to specify the path to the `.env` file that should be loaded. These values are loaded before the start of the One App server. See the documentation for Dotenv for advanced usage. Dotenv will look for `.env` by default if this is not set.
+
+**Runs In**
+* ✅ Production
+* ✅ Development
+
+**Shape**
+```bash
+DOTENV_CONFIG_PATH=String
+```
+
+**Example**
+```bash
+DOTENV_CONFIG_PATH=.env
+```
+
 ## `HOLOCRON_MODULE_MAP_URL`
 
 ⚠️ Required In Production

package.json

@@ -115,6 +115,7 @@
     "create-shared-react-context": "^1.0.5",
     "cross-fetch": "^4.0.0",
     "deepmerge": "^4.3.1",
+    "dotenv": "^16.4.5",
     "fastify": "^4.26.2",
     "fastify-metrics": "^11.0.0",
     "fastify-plugin": "^4.5.1",

scripts/start.sh

@@ -15,7 +15,7 @@
 # permissions and limitations under the License.
 
 flags="$@"
-nodeArgs='--dns-result-order ipv4first --no-experimental-fetch'
+nodeArgs='--dns-result-order ipv4first --no-experimental-fetch --require=dotenv/config'
 
 if [ -n "$OTEL_RESOURCE_ATTRIBUTES" ]; then
   export OTEL_RESOURCE_ATTRIBUTES=$(echo $OTEL_RESOURCE_ATTRIBUTES | sed "s/;/,/g")