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+# Ngrok
+
+For information on what Ngrok is, please see the [what is Ngrok](https://ngrok.com/docs/what-is-ngrok/) in Ngrok documentation.
+
+
+## Configuring a new project using NGROK
+
+### 1. Enable ngrok in warden
+Ngrok may be enabled on all env types by adding the following to the project's `.env` file (or exporting them to environment variables prior to starting the environment):
+
+```
+WARDEN_NGROK=1
+
+NGROK_AUTHTOKEN=<authtoken>
+```
+
+Note: You can obtain the token used in the above from within your Ngrok account under your ngrok [Dashboard](https://dashboard.ngrok.com/) > Click Your [Authtoken](https://dashboard.ngrok.com/get-started/your-authtoken).
+
+### 2. Initialize the ngrok configuration file : 
+
+```shell
+warden ngrok init domain1.test [domain2.test ...]
+```
+
+You will obtain two files : 
+ - ${WARDEN_ENV_PATH}/.warden/ngrok.yml  : The ngrok configuration (see [Documentation](https://ngrok.com/docs/agent/config/))
+```
+version: "2"
+log: stdout
+tunnels:
+    domain1.test:
+       proto: "http"
+       addr: "caddy-ngrok:2080"
+    domain2.test:
+       proto: "http"
+       addr: "caddy-ngrok:2080"
+
+```
+ - ${WARDEN_ENV_PATH}/.warden/ngrok.caddy : The caddy configuration
+```
+{
+   order replace after encode
+}
+:2080 {
+    @get {
+        method GET
+        path /*
+    }
+    handle @get {
+        replace {
+        }
+    }
+
+    reverse_proxy varnish:80 {
+        header_up Accept-Encoding identity
+        header_up X-Forwarded-Proto https
+    }
+}
+```
+> Note that the **${WARDEN_ENV_PATH}/.warden/ngrok.caddy is empty** on first initialization,
+> and configuration should be refreshed on every restart of your docker environment as the ngrok urls will change on free plans.
+
+
+### 3. Refresh the caddy ngrok configuration file :
+
+Caddy is used to automatically rewrite urls in from the ngrok to your local environment urls in order to avoid having to change any url configuration on your local environment.
+
+```shell
+warden ngrok refresh-config
+```
+
+You will obtain a `ngrok.caddy` file like this one : 
+```
+{
+   order replace after encode
+}
+:2080 {
+    @get {
+        method GET
+        path /*
+    }
+    handle @get {
+        replace {
+            domain2.test 5eb079afae74.ngrok.app
+            domain1.test 497b85f07962.ngrok.app
+        }
+    }
+
+    reverse_proxy varnish:80 {
+        header_up Accept-Encoding identity
+        header_up X-Forwarded-Proto https
+        header_up * 5eb079afae74\.ngrok\.app  domain2.test
+        header_down * domain2\.test 5eb079afae74.ngrok.app
+        header_up * 497b85f07962\.ngrok\.app  domain1.test
+        header_down * domain1\.test 497b85f07962.ngrok.app
+    }
+}
+```
+
+> After each restart of the ngrok container, you will have to refresh the caddy configuration to reflect ngrok urls changes.
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