The rule went red at 02:04 and nobody found out until 09:15. Rule evaluation and notification delivery are two different systems, and only one of them is visible in the UI. A practical setup for Grafana alert notifications to email, Slack and Telegram, plus how to detect the day delivery quietly stops.
A module's real cost is not writing it, it's upgrading it. Five signals that separate reusable Terraform modules worth adopting from the ones your team will pin at an old version and never touch again, plus the state-address failure that makes version bumps dangerous.
A practical comparison of GitLab CI, GitHub Actions and Jenkins that skips the feature table. What actually decides the choice is where your code lives, whether the runner can reach the deploy target, and who owns the control plane at 2am. Includes the cost mechanics, the security failure modes, and a decision procedure you can run in an afternoon.
Encrypting a Secret before you commit it only closes one of the five places that value comes to rest. Here is how to keep Kubernetes secrets out of Git properly: Sealed Secrets, SOPS and External Secrets compared honestly, the key-backup problem nobody plans for, and what to actually do when a credential is already in your history.
Podman is the better-designed container engine and Docker is the better-supported one. A working engineer's comparison: the architectural difference that drives everything, where each one wins and loses, the four things that genuinely break in a migration (compose, the Docker socket, privileged ports, restart on boot), and a decision procedure to run against your own setup.
Running Docker Compose in production is a reasonable choice for a single host, but the defaults were chosen for a laptop. A walk through the failure families that actually bite: the deploy gap, unrotated logs filling the disk, anonymous volumes, published ports that bypass your firewall, secrets in environment variables, and health checks that report without acting.
Asked how many open opportunities an account had, the assistant said five. It had nineteen. Retrieval returned five chunks and the model counted them. CRM data is structured and RAG is built for text, so the preparation work is mostly deciding which questions are retrieval and which are queries.
"It works" and "it's ready" are different claims. Integrations rarely fail on launch day; they fail in week six, when the token expires and someone adds a field. A readiness checklist for Salesforce AWS integrations, with a pass test on every item.
A PersistentVolumeClaim sounds like paperwork. Delete one on a cluster with the default reclaim policy and the underlying disk goes with it. A short guide to the parts of Kubernetes storage that bite: reclaim policies, access modes, zone affinity and StatefulSets.
Three hours into an ingress controller upgrade for an application that is one Go binary and a Postgres database. Nothing is broken. The cluster has just become the thing you operate. An honest look at what Kubernetes costs, when it earns that cost, and what to run instead.