Replace all environment variables instead of only API_URL

docs/docker.md

@@ -19,3 +19,27 @@ If you want to change `API_URL` in runtime, you can use (assuming you have a run
 ```shell
 docker exec -it -e API_URL=NEW_URL saleor-dashboard /docker-entrypoint.d/50-replace-api-url.sh
 ```
+
+The replacement is not limited to `API_URL` only. You can also replace other environment variables in the same way.
+
+```shell
+docker exec -it \
+  -e API_URL=NEW_URL \
+  -e APP_MOUNT_URI=NEW_APP_MOUNT_URI \
+  -e APPS_MARKETPLACE_API_URL=NEW_APPS_MARKETPLACE_API_URL \
+  -e APPS_TUNNEL_URL_KEYWORDS=NEW_APPS_TUNNEL_URL_KEYWORDS \
+  -e STATIC_URL=NEW_STATIC_URL \
+  saleor-dashboard /docker-entrypoint.d/50-replace-api-url.sh
+```
+
+Of course you can also provide all the environment variables at the `docker run` command:
+
+```shell
+docker run --publish 8080:80 \
+  --env "API_URL=NEW_URL" \
+  --env "APP_MOUNT_URI=NEW_APP_MOUNT_URI" \
+  --env "APPS_MARKETPLACE_API_URL=NEW_APPS_MARKETPLACE_API_URL" \
+  --env "APPS_TUNNEL_URL_KEYWORDS=NEW_APPS_TUNNEL_URL_KEYWORDS" \
+  --env "STATIC_URL=NEW_STATIC_URL" \
+  saleor-dashboard
+```

nginx/replace-api-url.sh

@@ -1,16 +1,29 @@
 #!/usr/bin/env sh
 
-# Replaces the API_URL from the bundle's index.html file with the $API_URL env var.
+# Replaces environment variables in the bundle's index.html file with their respective values.
 # This script is automatically picked up by the nginx entrypoint on startup.
 
 set -e
 
 INDEX_BUNDLE_PATH="/app/dashboard/index.html"
 
-if [ -z "${API_URL}" ]; then
-    echo "No API_URL provided, using defaults."
-else
-    echo "Setting API_URL to: $API_URL"
+# Function to replace environment variables
+replace_env_var() {
+  var_name=$1
+  var_value=$(eval echo \$$var_name)
+  if [ -n "$var_value" ]; then
+    echo "Setting $var_name to: $var_value"
+    sed -i "s#$var_name:.*#$var_name: \"$var_value\",#" "$INDEX_BUNDLE_PATH"
+  else
+    echo "No $var_name provided, using defaults."
+  fi
+}
 
-    sed -i "s#API_URL:.*#API_URL: \"$API_URL\",#" "$INDEX_BUNDLE_PATH"
-fi
+# Replace each environment variable
+replace_env_var "APP_MOUNT_URI"
+replace_env_var "APPS_MARKETPLACE_API_URL"
+replace_env_var "APPS_TUNNEL_URL_KEYWORDS"
+replace_env_var "STATIC_URL"
+replace_env_var "API_URL"
+
+echo "Environment variable replacement complete."