Setting up a tenant organization

TODO:

• nais-terraform-modules, legg til ny tenant i lista i serviceaccounts.tf. -> PR -> apply
• add denne brukeren til billing i NAV (frode, sten og johnny kan gjøre dette). Billing -> Account Management -> se på høyresida -> Add user.
• for nytt domene: bestilles av Trond. Når det er klart, kan man klikke seg igjennom og opprette ny org. Da må det verifiseres noe greier som må inn i DNS.

This guide is used when setting up a new tenant. This is typically done by the NAIS team, together with the tenants administrators.

graph TD
A[Google Tenant] --> B[NAIS Folder]
B --> C[management]
B --> D[dev]
B --> E[prod]

Prereq

• Google Cloud Tenant admin
• GitHub Organization
• Allow users from nais.io (nais-io) in the Allowed Domain Policy under IAM/Organization Policies

Required settings

Required permissions

On the user that will run the following commands, the following IAM roles are required on an organization level.

• Owner
• Organization Administrator
• Folder Creator
• Organization Policy Administrator

Create the NAIS folder

Everything related to NAIS is contained within this folder.

export NAAS_ORG_NAME=my-org # (1)
export NAAS_ORG_ID=$(gcloud organizations list --filter $NAAS_ORG_NAME | tail -n1 | awk '{print $2}')

gcloud resource-manager folders create --display-name=nais --organization=$NAAS_ORG_ID
export NAAS_GOOGLE_FOLDERID=$(gcloud resource-manager folders list --organization=$NAAS_ORG_ID | grep nais | awk '{print $3}')

1. Change this to the name of your Google Organization

Grant access to the NAIS team and the terraform user

To allow the NAIS team the required permissions to operate nais, IAM policies must be added to the NAIS folder.

Bug

Find correct roles for the following users:

• nais-viewers
• nais-admins

Copy and run this command

cat <<EOF > naas-google-org-policy.json
{
  "bindings": [
    {
      "members": [
        "serviceAccount:nais-tf-__TENANTNAME__@nais-io.iam.gserviceaccount.com"
      ],
      "role": "roles/artifactregistry.admin"
    },
    {
      "members": [
        "serviceAccount:nais-tf-__TENANTNAME__@nais-io.iam.gserviceaccount.com"
      ],
      "role": "roles/compute.admin"
    },
    {
      "members": [
        "serviceAccount:nais-tf-__TENANTNAME__@nais-io.iam.gserviceaccount.com"
      ],
      "role": "roles/container.admin"
    },
    {
      "members": [
        "serviceAccount:nais-tf-__TENANTNAME__@nais-io.iam.gserviceaccount.com"
      ],
      "role": "roles/dns.admin"
    },
    {
      "members": [
        "serviceAccount:nais-tf-__TENANTNAME__@nais-io.iam.gserviceaccount.com"
      ],
      "role": "roles/logging.admin"
    },
    {
      "members": [
        "serviceAccount:nais-tf-__TENANTNAME__@nais-io.iam.gserviceaccount.com"
      ],
      "role": "roles/resourcemanager.folderCreator"
    },
    {
      "members": [
        "serviceAccount:nais-tf-__TENANTNAME__@nais-io.iam.gserviceaccount.com"
      ],
      "role": "roles/resourcemanager.folderIamAdmin"
    },
    {
      "members": [
        "serviceAccount:nais-tf-__TENANTNAME__@nais-io.iam.gserviceaccount.com"
      ],
      "role": "roles/resourcemanager.projectCreator"
    },
    {
      "members": [
        "serviceAccount:nais-tf-__TENANTNAME__@nais-io.iam.gserviceaccount.com"
      ],
      "role": "roles/serviceusage.serviceUsageAdmin"
    }
  ]
}
EOF
read -p "Enter NaaS Tenant Name [$NAAS_TENANTNAME]: " TENANTNAME && \
export NAAS_TENANTNAME="${TENANTNAME:-$NAAS_TENANTNAME}" && \
sed -ie "s/__TENANTNAME__/$NAAS_TENANTNAME/g" naas-google-org-policy.json && \
echo "gcloud resource-manager folders set-iam-policy $NAAS_GOOGLE_FOLDERID naas-google-org-policy.json"

Run nais-terraform-modules

Before doing the following step, run the terraform setup. but even before this again, update nais/core/ipplan

Teams and users

Create nais admin user (in tenant admin.google.com)

Nais needs a dedicated user account in the Google directory. This user must be manually created in the Google Admin console. The user must be granted the Groups Admin role to be able to create and maintain groups for the teams:

1. Go to https://admin.google.com/ac/users
2. Click on Add new user
3. Enter nais as first name, and admin as last name
4. Enter nais-admin as the primary email
5. Click Add new user to add the user account
6. Click on the created user and then on Assign roles under the Admin roles and privileges section
7. Assign the Groups Admin role and click Save

Set up domain-wide delegation (in tenant admin.google.com)

Nais performs some operations on behalf of the Nais admin user mentioned above. For this to work the, this user needs domain-wide delegation with some scopes. This must be manually set up in the Google Admin console:

1. Go to https://admin.google.com/ac/owl/domainwidedelegation
2. Click on Add new to add a new Client ID
3. Enter the ID of the Nais admin service account (provided by the NAIS team)
4. Add the following scopes:
5. https://www.googleapis.com/auth/admin.directory.group
6. https://www.googleapis.com/auth/admin.directory.user.readonly
7. Click on Authorize

After this is done you should see something like the following:

Create nais admins group (in tenant admin.google.com)

Nais (API) automatically syncs users from the Google Workspace to its own database. Tenants can control which users that should be assigned the admin role in Nais by creating a group called nais-admins@<tenant-domain>, and then add the necessary users to this group. When teams runs the user sync it will look for this group, and make sure that the users in the group are granted the admin role. Whenever a user is removed from the group, Nais will revoke the admin role from the user on the next sync.

Users with the admin role in Console have access to some additional settings:

• Configure / enable / disable reconcilers
• Grant / revoke roles
• Manipulate reconciler states for teams

Create Kubernetes security group (in tenant admin.google.com)

This group is used to manage access to the kubernetes clusters, and this is where Nais automatically adds teams that should have access to the clusters.

In Google Admin create a group named gke-security-groups. Make sure the group has the View Members permission selected for Group Members.

Create nais' k8s nais admin groups (do not confuse with the tenants nais-admins group above, done in nais.io admin.google.com)

Create group $NAAS_TENANT_NAME-k8s-admins with the email: $NAAS_TENANT_NAME-k8s-admins@nais.io

Configure OAuth login for web frontend

Set up an OAuth client for Console.

1. Go to https://console.cloud.google.com
2. Choose project -> nais-management -> nais-management
3. Go to APIs ans Service -> OAuth consent screen
4. Internal -> create
   1. App name: nais management
   2. User support email: admin@<tenant-domain>
   3. Developer Contact email: admin@<tenant-domain>
5. Save and continue (x2)
6. Go to APIs ans Service -> Credentials
7. Click Create Credentials -> OAuth client ID
8. Select type Web Application
   1. Name: Console
   2. Authorized redirect URI: http://console.<tenant-name>.cloud.nais.io/oauth2/callback
9. Set Name and Authorized redirect URIs
10. Create
11. Copy client id and secret and give to NAIS-team

Highly recommended settings

Log location

Every project created in GCP will have a default log location for all logs. The default is Global. In order to keep your logs in europe, we strongly recommend setting the default log location to europe using the following command

gcloud alpha logging settings update --organization=$NAAS_ORG_ID --storage-location=europe-north1

Organization policy for location

Although all resources created by NAIS is located within the EU, teams are still able to create resources anywhere unless an organizational constraint is in place.

Click to see file content

constraint: constraints/gcp.resourceLocations
etag: BwVUSr8Q7Ng=
listPolicy:
  allowedValues:
  - in:eu-locations

gcloud beta resource-manager org-policies set-policy --organization=$NAAS_ORG_ID <file name>.yaml

Github Actions secrets

If you are using Github Actions to deploy your applications, you may want to add the following variable and secret to your organization's Github Actions secrets:

Open https://github.com/organizations/[ORG_NAME]/settings/secrets/actions

Name	Type
NAIS_MANAGEMENT_PROJECT_ID	Variable
NAIS_WORKLOAD_IDENTITY_PROVIDER	Secret

These may also be set in the repository's secrets, but it is recommended to set them in the organization's secrets as they are shared between all teams.

The NAIS team will provide the values.

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