DevOps Engineer
376 articles published
A shared API key between two internal services proves nothing about who is calling. mTLS makes every service present a cryptographic identity instead.
A million-token window doesn't retire your retrieval stack. Here's when to stuff the prompt, when to retrieve, and when to do both.
Terraform's declarative HCL and Pulumi's real programming languages solve the same problem in very different ways, and the right pick depends on your team.
A request leaving a laptop somehow lands on a server 20ms away. Here is what actually decides which point of presence answers.
Git refuses to switch branches or pull because uncommitted edits are in the way. Here's how to move them safely, and when it's fine to throw them out.
Git says it can't find a repo where you're standing. Nine times out of ten it's the wrong directory, a missing .git, or an ownership check.
Two failures wear the same face: builds that rebuild everything every time, and builds that hand you a stale image. Both trace back to how layer caching keys work.
Every crash loop leaves a number behind. Learn to read exit codes straight from kubectl describe and know the fix before you open the logs.
Your build fails, your containers won't start, and df says the disk is full. Here's where Docker hides the gigabytes and how to get them back safely.
A pod sits Pending and the scheduler quietly logs why it rejected every node. Learn to read that one line and fix the real cause instead of guessing.
HashiCorp relicensed Terraform and a community fork spun up overnight. Here's how OpenTofu actually differs and which one your team should run.
Evicted pods are the kubelet telling you a node ran out of something. Here's how to read the signal, stop the bleeding, and keep it from happening again.
