Blue-green vs canary deployments: choose by risk shape
Blue-green vs canary deployments: choose by risk shape. A practical production guide with diagnostic commands, failure interpretation, and a safe decision…
CI cache poisoning: performance feature or trust boundary?
CI cache poisoning: performance feature or trust boundary?. A practical production guide with diagnostic commands, failure interpretation, and a safe…
Database migrations without taking production down
Database migrations without taking production down. A practical production guide with diagnostic commands, failure interpretation, and a safe decision sequence.
Prevent overlapping production deployments safely
Prevent overlapping production deployments safely. A practical production guide with diagnostic commands, failure interpretation, and a safe decision sequence.
Graceful deployment: drain HTTP, WebSocket, and worker traffic
Graceful deployment: drain HTTP, WebSocket, and worker traffic. A practical production guide with diagnostic commands, failure interpretation, and a safe…
Deployment health checks that prevent bad releases
Deployment health checks that prevent bad releases. A practical production guide with diagnostic commands, failure interpretation, and a safe decision sequence.
Rollback strategy: code, schema, configuration, and data
Rollback strategy: code, schema, configuration, and data. A practical production guide with diagnostic commands, failure interpretation, and a safe…
Rotate deployment secrets without breaking the pipeline
Rotate deployment secrets without breaking the pipeline. A practical production guide with diagnostic commands, failure interpretation, and a safe decision…
Docker Compose production deployment with a real rollback
Docker Compose production deployment with a real rollback. A practical production guide with diagnostic commands, failure interpretation, and a safe…
Feature flag rollout caused an incident: contain and learn
Feature flag rollout caused an incident: contain and learn. A practical production guide with diagnostic commands, failure interpretation, and a safe…
GitHub Actions permission denied after token hardening
GitHub Actions permission denied after token hardening. A practical production guide with diagnostic commands, failure interpretation, and a safe decision…
GitHub Actions self-hosted runner offline: service and network debugging
GitHub Actions self-hosted runner offline: service and network debugging. A practical production guide with diagnostic commands, failure interpretation,…
Immutable deployment artifacts: stop rebuilding on the server
Immutable deployment artifacts: stop rebuilding on the server. A practical production guide with diagnostic commands, failure interpretation, and a safe…
Deploy Nginx configuration without locking out traffic
Deploy Nginx configuration without locking out traffic. A practical production guide with diagnostic commands, failure interpretation, and a safe decision…
The post-deployment monitoring window: what to watch and for how long
The post-deployment monitoring window: what to watch and for how long. A practical production guide with diagnostic commands, failure interpretation, and a…
Deployment failed because the server ran out of disk
Deployment failed because the server ran out of disk. A practical production guide with diagnostic commands, failure interpretation, and a safe decision…
Release verification: test user outcomes, not process status
Release verification: test user outcomes, not process status. A practical production guide with diagnostic commands, failure interpretation, and a safe…
SSH deploy keys: scope, rotation, and server ownership
SSH deploy keys: scope, rotation, and server ownership. A practical production guide with diagnostic commands, failure interpretation, and a safe decision…
Deploy a systemd service with validation and rollback
Deploy a systemd service with validation and rollback. A practical production guide with diagnostic commands, failure interpretation, and a safe decision…
Zero-downtime deployment checklist for ordinary Linux servers
Zero-downtime deployment checklist for ordinary Linux servers. A practical production guide with diagnostic commands, failure interpretation, and a safe…