docs(user): add first draft guide for getting started

docs/users/00-getting-started.md

@@ -1 +1,113 @@
 # Getting Started
+
+> This is a quick guide on how to get started with the openMCP platform. This guide is not complete and will be extended in the future.
+
+## Setup
+
+### 1. Create a `Project`
+A `Project` is the starting point to our Manged Control Plane (MCP) journey. It is a logical grouping of `Workspaces` and `ManagedControlPlanes`. A `Project` can be used to represent an organization, department, team or any other logical grouping of resources.
+```yaml
+apiVersion: core.openmcp.cloud/v1alpha1
+kind: Project
+metadata:
+  name: platform-team
+  annotations:
+    openmcp.cloud/display-name: Platform Team
+spec:
+  members:
+    - kind: User
+      name: [email protected]
+      roles:
+        - admin
+    - kind: User
+      name: [email protected]
+      roles:
+        - view
+```
+
+### 2. Create a `Workspace` in the `Project`
+
+A `Workspace` is a logical grouping of `ManagedControlPlanes`. A `Workspace` can be used to represent an environment (e.g. dev, staging, prod) or again an organization, department, team or any other logical grouping of resources.
+
+```yaml
+apiVersion: core.openmcp.cloud/v1alpha1
+kind: Workspace
+metadata:
+  name: dev
+  namespace: project-platform-team
+  annotations:
+    openmcp.cloud/display-name: Platform Team - Dev
+spec:
+  members:
+    - kind: User
+      name: [email protected]
+      roles:
+        - admin
+    - kind: User
+      name: [email protected]
+      roles:
+        - view
+```
+
+### 3. Create a `ManagedControlPlane` in the `Workspace`
+
+The `ManagedControlPlane` resource is the heart of the openMCP platform. A Managed Control Plane (MCP) is a representation of a Kubernetes API. With the `ManagedControlPlane` you specify the Users that get access via ClusterRoles or Roles to the Kubernetes API of the MCP.
+
+```yaml
+apiVersion: core.openmcp.cloud/v2alpha1
+kind: ManagedControlPlaneV2
+metadata:
+  name: mcp-01
+  namespace: project-platform-team--ws-dev
+spec:
+  iam:
+    roleBindings:
+    - subjects:
+      - kind: User
+        name: [email protected]
+      - kind: User
+        name: [email protected]
+      roleRefs:
+      - kind: ClusterRole
+        name: cluster-admin
+```
+
+### 4. Install managed services in your Managed Control Plane (MCP)
+
+You can install managed services in your Managed Control Plane (MCP) to extend its functionality. Currently, the following managed services are available:
+- Crossplane via the [service-provider-crossplane](https://github.com/openmcp-project/service-provider-crossplane)
+- Landscaper via the [service-provider-landscaper](https://github.com/openmcp-project/service-provider-landscaper)
+
+#### Managed Service: Crossplane
+
+Crossplane is an open source project that enables you to manage cloud infrastructure and services using Kubernetes-style declarative configuration. It allows you to define and manage cloud resources such as databases, storage, and networking using Kubernetes manifests.
+
+To install Crossplane in your MCP, you need to create a `Crossplane` resource in the same namespace as your `ManagedControlPlane`. The following example installs Crossplane version `v1.20.0` with the `provider-kubernetes` provider version `v0.16.0`.
+
+```yaml
+apiVersion: crossplane.services.openmcp.cloud/v1alpha1
+kind: Crossplane
+metadata:
+  name: mcp-01 # Same name as your ManagedControlPlane
+  namespace: project-platform-team--ws-dev # Same namespace as your ManagedControlPlane
+spec:
+  version: v1.20.0
+  providers:
+    - name: provider-kubernetes
+      version: v0.16.0
+```
+
+#### Managed Service: Landscaper
+
+Landscaper manages the installation, updates, and uninstallation of cloud-native workloads, with focus on larger complexities, while being capable of handling complex dependency chains between the individual components.
+
+To install a Landscaper for your MCP, you need to create a `Landscaper` resource with the same namespace and name as your `ManagedControlPlane`. The following example installs the Landscaper with default configuration.
+
+```yaml
+apiVersion: landscaper.services.openmcp.cloud/v1alpha1
+kind: Landscaper
+metadata:
+  name: mcp-01 # Same name as your ManagedControlPlane
+  namespace: project-platform-team--ws-dev # Same namespace as your ManagedControlPlane
+spec: {}
+```