The Lab

A live hybrid cloud engineering showcase spanning three continents — on-premise hardware in Waco TX, Oracle Cloud in Phoenix AZ, and a shell server in Amsterdam NL. Built to demonstrate real DevOps and SRE patterns, not just talk about them.
Live infrastructure status
Homelab
operational
Debian · Docker · K3s master
Waco, Texas · on-premise
Oracle Cloud
operational
ARM Ampere A1 · 4vCPU 24GB
Phoenix, AZ · K3s worker
Insomnia 24/7
monitoring
Shell server · node exporter
Amsterdam, NL · SSH tunnel
Portfolio site
live
prajwolbikramadhikari.com.np
GitHub Pages · Cloudflare CDN
CI/CD pipeline
passing
GitHub Actions · Gitleaks
CodeQL · Lighthouse CI
Terraform IaC
in progress
AWS S3 state · Cloudflare DNS
12 records under management
Architecture overview
three-continent-sre-showcase.hcl
pipeline
GitHub Actions Gitleaks CodeQL Lighthouse CI OIDC deploy GitHub Pages
edge
Cloudflare DNS CDN + SSL Zero Trust tunnel DMARC · SPF · DKIM
IaC
Terraform AWS S3 state DynamoDB lock IAM + OIDC
compute
K3s master (Waco) K3s worker (Phoenix) Tailscale mesh Insomnia NL SSH tunnel Docker services x7
observe
Prometheus federation Grafana dashboards Blackbox exporter n8n automation Discord alerts
full diagram ->
Technology stack
CI/CD
GitHub Actions Gitleaks CodeQL Lighthouse CI OIDC
Infrastructure as Code
Terraform AWS S3 DynamoDB Cloudflare TF
Networking
Cloudflare ZT Tailscale AdGuard Home NPM
Containers and Orchestration
Docker Docker Compose K3s Helm
Observability
Prometheus Grafana cAdvisor Blackbox Alertmanager
Automation
n8n Discord webhooks Pushgateway rsync
live running in production
in progress actively building
planned next phase
Build progress
01
⚡
CI/CD and DevSecOps
GitHub Actions · Gitleaks · CodeQL · Lighthouse · OIDC deploy
complete
02
⚙
Infrastructure as Code
Terraform · AWS S3 state · Cloudflare DNS · OCI instances
in progress
03
☸
K3s high availability cluster
Waco master + Phoenix worker · Tailscale mesh VPN
planned
04
◎
Global observability
Prometheus federation · 3-continent Grafana · NL latency probes
planned
05
⟳
Event-driven automation
n8n · Alertmanager · GitHub webhooks · Discord incident routing
planned
1 of 5 phases complete
Certifications and learning path
🎓
WGU M.S. Software Engineering
DevOps focus · in progress
GitLab CI/CD · DR planning
est. completion 2026
☁
AWS SAA-C03
Solutions Architect Associate
studying post-WGU completion
target Q1 2027
⬡
HashiCorp Terraform Associate
hands-on IaC from this project
next certification
after SAA-C03
Source code and writing
⌥
homelab-iac
Terraform source
⌥
portfolio
Hugo source
✍
Dev.to
Build writeups
✍
Hashnode
Technical posts
Note: Status indicators above reflect manually updated states during the build phase. Once Phase 4 (observability) is complete, this page will pull live node health from a sanitized public API endpoint — real uptime data, no raw Prometheus exposure.