First steps with Constellation

The following steps guide you through the process of creating a cluster and deploying a sample app. This example assumes that you have successfully installed and set up Constellation, and have access to a cloud subscription.

tip

If you don't have a cloud subscription, you can also set up a local Constellation cluster using virtualization for testing.

note

If you encounter any problem with the following steps, make sure to use the latest release and check out the known issues.

Create a cluster

1. Create the configuration file and state file for your cloud provider. If you are following the steps of this guide, there is no need to edit the file.

   AWS

   constellation config generate aws

   Azure

   constellation config generate azure

   GCP

   constellation config generate gcp

   STACKIT

   constellation config generate stackit

2. Create your IAM configuration.

   AWS

   constellation iam create aws --zone=us-east-2a --prefix=constellTest --update-config

   This command creates IAM configuration for the AWS zone us-east-2a using the prefix constellTest for all named resources being created. It also updates the configuration file constellation-conf.yaml in your current directory with the IAM values filled in.

   Depending on the attestation variant selected on config generation, different regions are available. AMD SEV-SNP machines (requires the default attestation variant awsSEVSNP) are currently available in the following regions:

   • eu-west-1
   • us-east-2

   You can find a list of regions that support AMD SEV-SNP in AWS's documentation.

   NitroTPM machines (requires the attestation variant awsNitroTPM) are available in all regions. Constellation OS images are currently replicated to the following regions:

   • eu-central-1
   • eu-west-1
   • eu-west-3
   • us-east-2
   • ap-south-1

   If you require the OS image to be available in another region, let us know.

   You can find a list of all regions in AWS's documentation.

   Azure

   constellation iam create azure --subscriptionID 00000000-0000-0000-0000-000000000000 --region=westus --resourceGroup=constellTest --servicePrincipal=spTest --update-config

   This command creates IAM configuration on the Azure region westus creating a new resource group constellTest and a new service principal spTest. It also updates the configuration file constellation-conf.yaml in your current directory with the IAM values filled in.

   CVMs are available in several Azure regions. Constellation OS images are currently replicated to the following:

   • germanywestcentral
   • westus
   • eastus
   • northeurope
   • westeurope
   • southeastasia

   If you require the OS image to be available in another region, let us know.

   You can find a list of all regions in Azure's documentation.

   GCP

   constellation iam create gcp --projectID=yourproject-12345 --zone=europe-west2-a --serviceAccountID=constell-test --update-config

   This command creates IAM configuration in the GCP project yourproject-12345 on the GCP zone europe-west2-a creating a new service account constell-test. It also updates the configuration file constellation-conf.yaml in your current directory with the IAM values filled in.

   Note that only regions offering CVMs of the C2D or N2D series are supported. You can find a list of all regions in Google's documentation, which you can filter by machine type C2D or N2D.

   STACKIT

   To use Constellation on STACKIT, the cluster will use the User Access Token (UAT) that's generated during the install step. After creating the accounts, fill in the STACKIT details in constellation-conf.yaml under provider.openstack:

   • stackitProjectID: STACKIT project id (can be found after login on the STACKIT portal)
   tip

   To learn about all options you have for managing IAM resources and Constellation configuration, see the Configuration workflow.

3. Create the cluster. constellation apply uses options set in constellation-conf.yaml. If you want to manually manage your cloud resources, for example by using Terraform, follow the corresponding instructions in the Create workflow.

   tip

   On Azure, you may need to wait 15+ minutes at this point for role assignments to propagate.

   constellation apply -y

   This should look similar to the following:

   $ constellation apply -y
   Checking for infrastructure changes
   The following Constellation cluster will be created:
     3 control-plane nodes of type n2d-standard-4 will be created.
     1 worker node of type n2d-standard-4 will be created.
   Creating
   Cloud infrastructure created successfully
   Your Constellation master secret was successfully written to ./constellation-mastersecret.json
   Connecting
   Initializing cluster
   Installing Kubernetes components
   Your Constellation cluster was successfully initialized.
   
   Constellation cluster identifier  g6iMP5wRU1b7mpOz2WEISlIYSfdAhB0oNaOg6XEwKFY=
   Kubernetes configuration          constellation-admin.conf
   
   You can now connect to your cluster by executing:
           export KUBECONFIG="$PWD/constellation-admin.conf"

   The cluster's identifier will be different in your output. Keep constellation-mastersecret.json somewhere safe. This will allow you to recover your cluster in case of a disaster.

   info

   Depending on your CSP and region, constellation apply may take 10+ minutes to complete.

4. Configure kubectl.

   export KUBECONFIG="$PWD/constellation-admin.conf"

Deploy a sample application

1. Deploy the emojivoto app

   kubectl apply -k github.com/BuoyantIO/emojivoto/kustomize/deployment

2. Expose the frontend service locally

   kubectl wait --for=condition=available --timeout=60s -n emojivoto --all deployments
   kubectl -n emojivoto port-forward svc/web-svc 8080:80 &
   curl http://localhost:8080
   kill %1

Terminate your cluster

Use the CLI to terminate your cluster. If you manually used Terraform to manage your cloud resources, follow the corresponding instructions in the Terminate workflow.

constellation terminate

This should give the following output:

$ constellation terminate
You are about to terminate a Constellation cluster.
All of its associated resources will be DESTROYED.
This action is irreversible and ALL DATA WILL BE LOST.
Do you want to continue? [y/n]:

Confirm with y to terminate the cluster:

Terminating ...
Your Constellation cluster was terminated successfully.

Optionally, you can also delete your IAM resources.