docs: add release v2.6.0

docs/versioned_docs/version-2.6/workflows/create.md

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+# Create your cluster
+
+Creating your cluster requires two steps:
+
+1. Creating the necessary resources in your cloud environment
+2. Bootstrapping the Constellation cluster and setting up a connection
+
+See the [architecture](../architecture/orchestration.md) section for details on the inner workings of this process.
+
+:::tip
+If you don't have a cloud subscription, check out [MiniConstellation](../getting-started/first-steps-local.md), which lets you set up a local Constellation cluster using virtualization.
+:::
+
+## The *create* step
+
+This step creates the necessary resources for your cluster in your cloud environment.
+Before you create the cluster, make sure to have a [valid configuration file](./config.md).
+
+### Create
+
+<tabs groupId="provider">
+<tabItem value="cli" label="CLI">
+
+Choose the initial size of your cluster.
+The following command creates a cluster with one control-plane and two worker nodes:
+
+```bash
+constellation create --control-plane-nodes 1 --worker-nodes 2
+```
+
+For details on the flags, consult the command help via `constellation create -h`.
+
+*create* stores your cluster's state in a [`constellation-terraform`](../architecture/orchestration.md#cluster-creation-process) directory in your workspace.
+
+</tabItem>
+<tabItem value="terraform" label="Terraform">
+
+Terraform allows for an easier GitOps integration as well as meeting regulatory requirements.
+Since the Constellation CLI also uses Terraform under the hood, you can reuse the same Terraform files.
+
+:::info
+Familiarize with the [Terraform usage policy](../reference/terraform.md) before manually interacting with Terraform to create a cluster.
+Please also refrain from changing the Terraform resource definitions, as Constellation is tightly coupled to them.
+:::
+
+Download the Terraform files for the selected CSP from the [GitHub repository](https://github.com/edgelesssys/constellation/tree/main/cli/internal/terraform/terraform).
+
+Create a `terraform.tfvars` file.
+There, define all needed variables found in `variables.tf` using the values from the `constellation-config.yaml`.
+
+To find the image reference for your CSP and region, execute:
+
+```bash
+CONSTELL_VER=vX.Y.Z
+curl -s https://cdn.confidential.cloud/constellation/v1/ref/-/stream/stable/$CONSTELL_VER/image/info.json | jq
+```
+
+Initialize and apply Terraform to create the configured infrastructure:
+
+```bash
+terraform init
+terraform apply
+```
+
+The Constellation [init step](#the-init-step) requires the already created `constellation-config.yaml` and the `constellation-id.json`.
+Create the `constellation-id.json` using the output from the Terraform state and the `constellation-conf.yaml`:
+
+```bash
+CONSTELL_IP=$(terraform output ip)
+CONSTELL_INIT_SECRET=$(terraform output initSecret | jq -r | tr -d '\n' | base64)
+CONSTELL_CSP=$(cat constellation-conf.yaml | yq ".provider | keys | .[0]")
+jq --null-input --arg cloudprovider "$CONSTELL_CSP" --arg ip "$CONSTELL_IP" --arg initsecret "$CONSTELL_INIT_SECRET" '{"cloudprovider":$cloudprovider,"ip":$ip,"initsecret":$initsecret}' > constellation-id.json
+```
+
+</tabItem>
+</tabs>
+
+## The *init* step
+
+The following command initializes and bootstraps your cluster:
+
+```bash
+constellation init
+```
+
+Next, configure `kubectl` for your cluster:
+
+```bash
+export KUBECONFIG="$PWD/constellation-admin.conf"
+```
+
+🏁 That's it. You've successfully created a Constellation cluster.