feat(workflow): Active-Active Multi-Region Setup for Redis Cloud

[joshrotenberg]

Overview

Implement a workflow that automates the setup of Active-Active databases across multiple regions in Redis Cloud.

Workflow Steps

1. Create subscriptions in 2+ specified regions
2. Wait for all subscriptions to be ready
3. Configure networking between regions (VPC peering, PSC, etc.)
4. Create Active-Active database spanning all regions
5. Verify cross-region replication is working
6. Test failover capability
7. Output connection endpoints for each region

Example Usage

redisctl cloud workflow active-active-setup \
  --name "global-db" \
  --regions us-east-1,eu-west-1,ap-south-1 \
  --memory-gb 10 \
  --high-availability \
  --test-failover \
  --output json

Value Proposition

• Simplifies complex multi-region setup
• Ensures consistent configuration across regions
• Automates networking setup between regions
• Validates replication and failover

Acceptance Criteria

• Support 2+ regions
• Handle subscription creation in parallel
• Configure inter-region networking
• Create Active-Active database
• Verify replication status
• Optional failover testing
• Rollback on failure
• Comprehensive error handling
• Documentation with examples

Related to #260 (workflow system implementation)

[joshrotenberg]

Part of epic #3 (Roadmap: High-Level Workflow Commands)