chore: add verification docs

docs/.vitepress/config.ts

@@ -20,7 +20,8 @@ export default defineConfig({
           {
             text: "Deployment", items: [
               { text: "Helm", link: "/docs/deployment/helm" },
-              { text: "Docker", link: "/docs/deployment/docker" }
+              { text: "Docker", link: "/docs/deployment/docker" },
+              { text: "Verify deployment", link: "/docs/deployment/verify" }
             ]
           },
           {

docs/docs/deployment/verify.md

@@ -0,0 +1,20 @@
+# Verify the deployment
+
+To verify and test the deployment of FeedbackFusion, you can run the integration tests. The following prerequisites and instructions will guide you through the process.
+
+## Prerequisites
+
+- **Rust** installed on your machine.
+- **cargo-make** installed. You can install it using the following command:
+  ```sh
+  cargo install cargo-make
+  ```
+- The FeedbackFusion application must be accessible on port 8000 on the machine where the tests are executed. This can be achieved via port-forwarding if using Kubernetes.
+- Override the `OIDC_PROVIDER`, `CLIENT_ID` and `CLIENT_SECRET` in the Makefile.
+
+## Running Integration Tests
+
+To run the integration tests, execute the following command:
+
+```sh
+cargo make integration_test