Hybrid Environment Validation

Full context: environments/hybrid.md

Architecture Snapshot

• [ ] Cloud components documented with owner, region/account/subscription, and lifecycle stage
• [ ] On-prem components documented with owner, site/datacenter, and lifecycle stage
• [ ] Control-plane and data-plane placement decisions documented
• [ ] System-of-record decisions documented for configuration, identity, and data
• [ ] Current-state and target-state diagrams attached

Connectivity Matrix

Source	Destination	Direction	Port/Protocol	DNS Name	Expected Latency	Owner	Validated
<cloud component>	<on-prem component>	<cloud-to-on-prem>	<tcp/443>	<fqdn>	<ms>	<team>	<yes/no>

Boundary Services

• [ ] DNS resolution validated from cloud workloads, on-prem workloads, bastions, and support workstations
• [ ] TLS trust chain validated in both directions
• [ ] NAT, proxy, firewall, service mesh, or private endpoint behavior documented
• [ ] Identity federation or token exchange tested for human and workload identities
• [ ] Certificate issuance and rotation ownership documented

Performance and Resiliency

• [ ] Baseline latency, bandwidth, packet loss, and MTU captured
• [ ] Timeout, retry, queue, and backoff settings reviewed against measured network behavior
• [ ] Link outage test completed or tabletop exercise documented
• [ ] One-sided service outage test completed or tabletop exercise documented
• [ ] DR/failover RTO and RPO expectations documented

Operations and Support

• [ ] Logs, metrics, traces, and audit records visible across the full transaction path
• [ ] Cloud, on-prem, network, security, and application contacts listed
• [ ] Maintenance windows and change approval process documented for each side
• [ ] Rollback path documented for cross-environment changes
• [ ] Customer sign-off captured before production cutover