Add CustomersDot support to GDK

Overview

Add CustomersDot service to GDK, consolidating configuration to streamline development of licensing and subscription features.

Related repositories:

• https://gitlab.com/gitlab-org/customers-gitlab-com
• https://gitlab.com/gitlab-org/gitlab-development-kit

Impacted categories

• gdk-usability - Streamlining CustomersDot setup and integration with GDK

Problem

Setting up CustomersDot locally requires manual configuration across multiple files:

• Manual gdk.yml edits
• Multiple environment variables (CUSTOMER_PORTAL_URL, GITLAB_LICENSE_MODE, GITLAB_SIMULATE_SAAS)
• Manual GraphQL proxy setup
• No standardized GDK commands for CustomersDot

See https://gitlab.com/gitlab-org/customers-gitlab-com/-/blob/main/doc/setup/gitlab.md?plain=0

Proposal

Add CustomersDot as a gdk service

gdk config set customers-dot.enabled true

Consolidate configuration in gdk.yml

customers-dot:
  enabled: true
  port: 5000
  auto_start: true
  
license:
  mode: test
  customer_portal_url: http://localhost:5000
  
gitlab:
  simulate_saas: false

Auto-configure when customers.enabled: true

• Set license.customer_portal_url automatically
• Configure GraphQL proxy
• Apply necessary environment variables

Benefits

• One-command setup: gdk install customers
• Unified configuration in gdk.yml
• Standard GDK commands work with CustomersDot
• Fewer manual setup errors