Added Coolify not using Wildcard SSL Certificates troubleshoot guide - Closes #165

Author: ShadowArcanist

docs/.vitepress/config.mts

@@ -532,6 +532,13 @@ export default defineConfig({
               { text: 'Crash During Build ', link: '/troubleshoot/server/crash-during-build' },
             ]
           },
+          {
+            text: 'DNS & Domains',
+            collapsed: true,
+            items: [
+              { text: 'Wildcard SSL not working', link: '/troubleshoot/dns-and-domains/wildcard-ssl-certs' },
+            ]
+          },
         ],
       },
       {

docs/troubleshoot/dns-and-domains/wildcard-ssl-certs.md

@@ -0,0 +1,45 @@
+---
+title: Coolify not using Wildcard SSL Certificates
+---
+
+# Coolify not using Wildcard SSL Certificates
+If your wildcard SSL certificate isn't working with your domain, it may be due to configuration problems. Here's how you can check and fix it.
+
+
+## 1. Check the SSL Certificate Validity
+- **Verify the Certificate:** Make sure the SSL certificate is valid for the domain.  
+  - Confirm the Common Name (CN) matches your domain.
+  - Double-check that your wildcard certificate is not expired.
+
+
+## 2. Verify Certificate Installation
+- **File Extensions:** Make sure the SSL certificate file ends with `.cert` and the key file ends with `.key`.  
+  - Some providers give files in `.pem` format, which must be converted to `.cert` and `.key` before adding them to your server (simply rename the files to `.cert` for the certificate and `.key` for the key)
+- **File Location:**  Make sure your `.cert` and `.key` files are located in the `/data/coolify/proxy/certs` directory.
+
+
+## 3. Check the Coolify Proxy Configuration
+- **Add Certificate in Dashboard:** Make sure you have added the SSL certificate configuration in the Coolify proxy via the dashboard. More details can be found [here](/knowledge-base/proxy/traefik/custom-ssl-certs).
+- **Check File Mounts:** If you have modified the proxy configuration, verify that the `/data/coolify/proxy` directory is mounted correctly. 
+
+
+## 4. Remove Old Certificates
+- **Old Certificate Issue:**  The Coolify proxy may be using an old certificate stored in the `acme.json` file.
+- **Action:**  Delete the `acme.json` file from the `/data/coolify/proxy` directory and restart the Coolify proxy from the dashboard by clicking the restart proxy button.
+
+
+## 5. Clear Your Browser Cache
+- **Cache Issue:** Your browser might be caching an old SSL certificate.
+- **Action:**  Check your website using a different browser or network.  
+  - You can also use sandbox tools like [Browserling ↗](https://www.browserling.com?utm_source=coolify.io) to test your site.
+
+     
+## 6. Verify DNS Challenge Configuration
+- **DNS Challenge Check:** If you are using a DNS challenge, confirm that it is set up correctly.
+- **Action:** Verify that you have selected the correct DNS provider, API Keys and check the challenge settings are properly configured.
+
+
+## Support
+If none of the above steps work, try these additional options:
+- **Community Help:** Join our [Discord community ↗](https://coolify.io/discord) and post in the support forum channel.
+- **What to Share:** Include a description of your issue, screenshots of your configuration, any error messages, and the steps you have already tried.