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Eslam Shapsough
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Production Hardening & Troubleshooting
The build above is functionally HA. Before production, tighten these. Persistence — survive a ful...
Connecting Applications
This is the part that makes Sentinel different from a database-behind-a-proxy setup: the client d...
Failover & Recovery Testing
Now the payoff: we kill the primary and watch the cluster heal itself with no human intervention....
Install Redis & Configure Replication
We install the same two packages on all three nodes, then point the two replicas at the primary. ...
Sentinel — Automatic Failover Configuration
Replication gives us copies. Sentinel is what turns those copies into high availability — it watc...
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Recently Created Books View All
Redis High Availability with Sentinel
Build a self-healing 3-node Redis cluster: replication plus Sentinel for automatic failover — no ...
PostgreSQL High Availability with Patroni, etcd & HAProxy
Build a 3-node PostgreSQL cluster with automatic failover using Patroni, etcd and HAProxy.
Module 11 — Observability & Monitoring
See inside your systems: the three pillars (logs/metrics/traces), Grafana dashboards & alerts, th...
Module 10 — Helm Charts
Package, install and manage Kubernetes apps with Helm: charts, releases and repositories; chart a...
Module 9 — Infrastructure as Code
Define infrastructure in version-controlled files: Terraform (provisioning), Ansible (configurati...
Recently Created Shelves View All
HA Services Tutorials
Step-by-step guides for building highly-available, self-healing infrastructure services.
Building a Kubernetes Platform on Proxmox
Designing and running a small but real Kubernetes platform on a Proxmox home lab, end to end.
DevOps Internship Program
A 12-week, self-directed learning path for DevOps / Cloud / Observability interns. Work top to bo...
Core Lab Infrastructure
The foundations under everything else: edge networking, provisioning, Git, docs, monitoring, logg...
ProxMox Tutorials
Guides and tutorials for Proxmox Virtual Environment