Hybrid Cloud Architecture for Indian Government Workloads
Government workloads sit at the intersection of cloud-style agility and on-prem-grade control. Hybrid cloud, combining MeghRaj/GI Cloud, commercial cloud, and on-prem, is the realistic architecture. Here's how to design it.
Key takeaways
- MeghRaj (GI Cloud) is the government cloud; commercial cloud (AWS, GCP, Azure) and on-prem complement it.
- Workload classification dictates placement: sensitive on MeghRaj or on-prem; agility-needing on commercial cloud.
- Integration patterns: VPN, ExpressRoute/Direct Connect, dedicated lines.
- Identity, observability, security must be unified across the hybrid.
Why this matters
Government workloads have variable sensitivity. A citizen-facing webpage doesn't need the same isolation as a beneficiary database. Hybrid cloud lets each workload sit in the right place, neither over-engineered nor under-secured.
The placement framework
MeghRaj / on-prem for
- Classified or sensitive citizen data (PMJAY beneficiaries, Aadhaar-linked databases for specific use cases)
- Workloads under specific regulatory data-residency rules
- Workloads with auditor preference for sovereign cloud
Commercial cloud for
- Citizen-facing portals (after data classification confirms safety)
- Development and staging environments
- Burst capacity
- AI/ML workloads requiring specific commercial cloud services
On-prem hardware for
- Legacy systems being phased out
- Very high-performance computing needs
- Specific security clearance requirements
Integration patterns
VPN
Site-to-site VPN between commercial cloud VPCs and MeghRaj. Easy to set up; bandwidth and latency limits.
Dedicated connection
ExpressRoute (Azure), Direct Connect (AWS), Interconnect (GCP) to MeghRaj or on-prem data center. Higher bandwidth, more reliable, more expensive.
Identity federation
Single sign-on across hybrid via SAML/OIDC. Active Directory federated with cloud identity (Azure AD, AWS IAM Identity Center).
Data sync
ETL/CDC tools moving data between hybrid layers, Striim, Kafka, custom.
Cross-cutting concerns
Security
Unified IAM, central logging, common compliance controls. Don't have two security models.
Observability
Centralized, Datadog, Grafana, or government-approved equivalent. Logs, metrics, traces from all environments.
Cost
Cloud costs are predictable per-month bills; on-prem are upfront-plus-maintenance. Build cost dashboards across.
Compliance
CERT-In and STQC apply across the hybrid; document scope.
Common pitfalls
Treating hybrid as two separate environments. Identity, observability, security must be unified.
Underestimating data transfer costs. Moving data between cloud and on-prem can cost more than the cloud itself.
Latency-sensitive workloads on wrong tier. Web traffic on commercial cloud → DB on MeghRaj → app slow.
No DR plan. Hybrid complicates DR; plan it.
What we recommend
Classify workloads first. Assign each to the right tier. Connect via dedicated link if volume justifies it. Unify identity and observability. Document the architecture for audit clarity.
FAQs
Is MeghRaj as capable as AWS? Less mature in services breadth; sufficient for most government workloads.
Multi-cloud + on-prem? Possible but operationally complex. Justify with specific reasons.
Compliance reduction by going commercial only? Sometimes, but only for non-sensitive workloads.