DevOps & Infrastructure | Linux • Automation • Observability | Temporal & PostgreSQL | 2ssk.medium.com
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PostgreSQL VACUUM vs VACUUM FULL vs pg_repack.
Disk reclamation, table bloat, wraparound, and production trade-offs.
A deep dive into keeping PostgreSQL healthy.
2ssk.medium.com/vacuum-vs-va…
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I enjoyed Noctalia but only used a few features, so I built my own minimal Quickshell focused on what matters to my workflow: notes, to-dos, clipboard history, and quick file opening.
Inspired by @christitustech.
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Built an active-passive HA load balancer with NGINX, Keepalived/VRRP, and Go.
Includes VIP failover, failure injection, recovery tests, and a Prometheus + Grafana + Loki observability stack.
Article: 2ssk.medium.com/building-a-z…
Code: github.com/2SSK/nginx-load-b…
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Built VPSLab : disposable Ubuntu 24.04 server environments for testing DevOps/SRE automatically locally.
Each node has SSH, systemd, cron, journald, private networking and resource limits with automated verification.
Docker containers, not VMs.
github.com/2SSK/vpslab.git
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I wanted to understand Temporal Saga compensation beyond the documentation, so I built TenantFlow.
It provisions tenants across PostgreSQL and Keycloak, then compensates successful steps when a later step fails.
GitHub: github.com/2SSK/tenantflow.g…
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What if you want AWX without deploying Kubernetes?
I dug into AWX internals and built a standalone Docker Compose deployment using PostgreSQL, Redis, receptor, Docker-based executions, and AWX-as-code.
I documented the architecture and trade-offs:
2ssk.medium.com/running-awx-…
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A production server rebooted after an unattended kernel update. Instead of just disabling auto-reboots, I built a Linux patch management system with immutable snapshots, promotion gates, CVE tracking & rollback.
2ssk.medium.com/controlled-l…
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New blog: systemd in Production
A practical guide covering:
• Production-ready service units
• Restart policies
• Resource limits
• Security hardening
• journalctl debugging
• Best practices for reliable Linux services
sskbtw.xyz/blogs/systemd-pro…
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Running multiple Temporal workers on the same host?
Prometheus exporter → EADDRINUSE
OTLP export → one collector, no port conflicts, one scrape target.
Full configs for OTel Collector + PM2 + Docker Compose 👇
2ssk.medium.com/temporal-sdk…
#Temporal #OpenTelemetry #Prometheus
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Published a write-up on a PostgreSQL 17 migration incident involving:
- WAL recycling
- replica desynchronization
- silent timeout failures
- and resource bottlenecks caused by conservative container tuning
2ssk.medium.com/a-postgresql…
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SSK retweeted
introducing vim royale
- real-time multiplayer duels
- Race to clean broken code
- elo-based matchmaking
- replay & study every match
- bot mode + singleplayer
- built-in vimtutor to learn vim motions
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Had to modify configs inside a running PostgreSQL prod container.
Couldn't restart it.
No vim.
No nano.
No editor.
That day, I discovered sed is basically a production emergency editor.
Since then its my go-to quick fix tool.
wrote about it 👇
2ssk.medium.com/sed-for-emer…
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I wrote a 3-part series on PostgreSQL backups & disaster recovery in Docker:
👉 How to restore safely
👉 avoid data loss
👉 automate recovery
Full Docker PostgreSQL backup & restore guide:
Part 1 — Backup Strategy
2ssk.medium.com/docker-postg…
Part 2 — Safe Restore
2ssk.medium.com/restoring-do…
Part 3 — Automation
2ssk.medium.com/automating-d…
#PostgreSQL #DevOps #SRE
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