Merge pull request #68 from kube-HPC/keycloak-page

Keycloak page

Author: Adir111

site/learn/InstallHkube.md

@@ -6,6 +6,7 @@ category: Learn
 permalink: /learn/install/
 sublinks: Prerequisites, Minikube Installation, Production Deployment
 next: /learn/api/
+# next: /learn/keycloak/
 ---
 
 ## Prerequisites

site/learn/Keycloak.md

@@ -0,0 +1,130 @@
+---
+title: Keycloak
+sidebarTitle: Keycloak
+layout: ../_core/DocsLayout
+category: Learn
+permalink: /learn/keycloak/
+# sublinks: Introduction, NGINX Config for Keycloak, Default Configuration, Administration UI
+next: /learn/installCLI/
+---
+
+## Introduction
+
+### What is Keycloak?
+Keycloak is an open-source identity and access management solution. It provides login, single sign-on (SSO), user management, and role-based access control (RBAC) for applications.  
+HKube uses Keycloak to manage authentication and authorization across its components.  
+Below is the login screen used in the HKube platform:  
+[Insert screenshot of your HKube Keycloak login screen here]
+
+---
+
+## NGINX Config for Keycloak
+
+### Patch Ingress Config
+
+To allow large headers required by Keycloak, the NGINX ingress controller must be patched. Run the following commands:  
+
+<pre class="bash" id="patchIngress">
+kubectl patch configmap ingress-nginx-controller -n ingress-nginx \
+  --type merge \
+  -p '{"data": {
+    "large-client-header-buffers": "4 128k",
+    "proxy-buffer-size": "128k",
+    "proxy-buffers": "4 128k",
+    "proxy-busy-buffers-size": "128k"
+  }}'
+kubectl delete pod -n ingress-nginx -l app.kubernetes.io/component=controller <button class="copy-btn" onclick="copyToClipboard('patchIngress')">Copy</button>
+</pre>
+
+This configuration allows NGINX to handle larger authentication headers used by Keycloak.
+
+---
+
+## Default Configuration
+
+### Users
+
+HKube includes several default users that are created during setup:
+
+- `guest / guestPassword` — member of `hkube-guests`
+- `viewer / viewerPassword` — member of `hkube-viewers`
+- `developer / developerPassword` — member of `hkube-developers`
+
+These users are part of predefined Keycloak groups that control their access within the system.
+
+### Groups
+
+User permissions are assigned via groups:
+
+- **hkube-developers** – Full access: delete, edit, view, and execute
+- **hkube-viewers** – Can view and edit
+- **hkube-guests** – View-only access
+
+> Note: Group membership maps users to specific roles in the `api-server` client.
+
+### Roles
+
+Roles define the actual permissions enforced by HKube’s backend. These are client roles defined under the `api-server` Keycloak client:
+
+- `hkube_api_delete` – Allows deletion of HKube objects
+- `hkube_api_edit` – Allows editing of HKube objects
+- `hkube_api_view` – Allows viewing of HKube objects
+- `hkube_api_execute` – Allows execution of HKube objects
+
+---
+
+## Administration UI
+
+### Keycloak Admin Console
+
+To manage users, groups, clients, and roles, access the Keycloak Admin Console.
+
+- **URL:** `https://<your_domain>/hkube/keycloak/` - for example with Minikube: `https://192.168.49.2/hkube/keycloak/`
+- **Username:** `admin`
+- **Password:** `admin`
+
+> These are default credentials and should be changed in production environments to avoid security risks.
+
+---
+
+## Summary of Permissions in HKube
+
+HKube uses Keycloak roles and groups to manage access:
+
+| Group            | Permissions                                      |
+|------------------|--------------------------------------------------|
+| hkube-developers | view, edit, delete, execute                      |
+| hkube-viewers    | view, edit                                       |
+| hkube-guests     | view only                                        |
+
+<p>&nbsp;</p>
+
+| Role                | Description                          |
+|---------------------|--------------------------------------|
+| hkube_api_view      | Can view pipelines and algorithms    |
+| hkube_api_edit      | Can modify pipelines and algorithms  |
+| hkube_api_delete    | Can delete pipelines and algorithms  |
+| hkube_api_execute   | Can run pipelines                    |
+
+These roles are mapped to users through their group memberships in Keycloak.
+
+<script>
+  function copyToClipboard(elementId) {
+    const codeBlock = document.getElementById(elementId);
+    const button = codeBlock.querySelector('.copy-btn');
+
+    const text = Array.from(codeBlock.childNodes)
+      .filter(node => node.nodeType === Node.TEXT_NODE || node.tagName !== 'BUTTON')
+      .map(node => node.textContent)
+      .join('')
+      .trim();
+
+    navigator.clipboard.writeText(text).then(() => {
+      const original = button.textContent;
+      button.textContent = 'Copied!';
+      setTimeout(() => { button.textContent = original; }, 500);
+    }).catch((err) => {
+      console.error('Copy failed', err);
+    });
+  }
+</script>