51 articles tagged with ""deployment""
After years of 'just push the image manually', I finally wired up a proper AWS ECR pipeline with GitHub Actions. Build, scan, tag, push, deploy - all automated. Here's the setup I wish I had from day one.
Your pod keeps getting OOMKilled and you have no idea why? After being paged at 3am three times in one week, I finally learned how Kubernetes resource requests and limits actually work — and how to set them without guessing.
After countless deployments, I learned the hard way that 'it works in staging' is not a deployment strategy. Smoke tests run in under 60 seconds and catch the disasters before your users do - here's how to build them.
Everyone says 'don't use docker-compose in production, use Kubernetes.' After running it in prod for 3 years without incident, I'd like to respectfully disagree — for the right use case.
After years of ssh-ing into servers and running kubectl apply like a caveman, I discovered GitOps and Argo CD. Now my Git repo IS my deployment pipeline, and I haven't manually touched a cluster in months. Here's how it works!
After spending 3 hours debugging why my API container couldn't reach my database container (they were on different networks), I learned Docker networking the hard way. Here's everything you need to know to never waste an afternoon like that again.
After accidentally shipping a half-baked feature to production at 11 PM because nobody stopped me, I discovered GitHub Actions Environments — the deployment protection feature that makes 'hold on, did anyone review this?' a built-in part of your CI/CD pipeline.
No resource limits in Kubernetes? One memory leak will take down your entire cluster. I learned this the hard way at 2 AM. Here's how to set requests and limits so your pods play nice with each other.
Your app is mysteriously crashing in production, random pods are getting killed, and nobody knows why. After surviving several Kubernetes cluster meltdowns, I learned that forgetting resource limits is like inviting a black hole to your birthday party.
Running Node.js on port 3000 directly? PHP-FPM on 9000? Docker taught me the hard way that exposing raw app ports is the fastest way to get hacked, slowed down, and humiliated. Let Nginx handle the front door.
After shipping a buggy release that took down 100% of users at once, I learned canary deployments the hard way. Here's how to roll out features to 5% of traffic first so your disasters only affect 5% of users.
Your cluster looked fine at 9 AM, then at 2 PM everything went down. No code changes. No deploys. Just one rogue pod that ate all the memory and took everything else with it. Here's how to set resource limits and never experience that panic again.
After watching our GitHub-hosted runner bill explode to $800/month and CI jobs queue for 25 minutes during peak hours, I set up self-hosted runners. Build times dropped 80%. Here's everything I learned the hard way.
Your pod is OOMKilled at 3 AM and you have no idea why. After getting paged one too many times, I learned the hard truth about Kubernetes resource limits and requests — and why ignoring them is basically leaving a buffet open for your worst-behaved microservice.
One greedy pod. No resource limits. A cluster brought to its knees at 2 AM. Sound familiar? Here's everything I learned the hard way about Kubernetes requests and limits — and why skipping them is playing Russian roulette with production.
After countless hours of manually provisioning servers that nobody could reproduce, I finally embraced Infrastructure as Code. Here's why Terraform will save your sanity and your team from 3 AM 'who touched what?' panic calls.
Your Kubernetes pod is running but returning 500 errors to every user — and K8s has no idea. After running production clusters that randomly served disaster to 1 in 3 users, I learned that liveness, readiness, and startup probes are not optional extras. Here's everything you need to know.
After setting up the same GitHub Actions pipeline for the 11th microservice in a row — copy, paste, tweak, commit, forget to update the original — I finally snapped. Here's how reusable workflows ended the nightmare and made our CI/CD actually maintainable.
Your Kubernetes pods are crashing silently and users are getting 502 errors. After running dozens of production clusters, I learned that misconfigured health probes are the silent killer - here's how to fix them!
I used to 'ssh prod-server-01' and manually run commands on 40 servers. After countless deployments burned by 3 AM hotfixes, Ansible taught me that configuration management isn't optional - it's survival.
After countless deployments where a half-finished feature somehow made it to production at the worst possible moment, I discovered feature flags — the DevOps superpower that lets you merge code and flip a switch separately. Here's how to stop fearing your own deploy button.
Forgot to set resource limits and your whole cluster crashed because one rogue pod ate all the CPU? Been there. Here's the definitive guide to Kubernetes requests and limits so your cluster stays healthy and your pager stays silent.
After countless deployments where 'it works on staging' turned into a production dumpster fire, I learned the hard way: running migrations blindly in CI/CD is how you spend your Saturday on-call. Here's the battle-tested approach that stopped the bleeding.
If you're managing Kubernetes apps by duplicating YAML files across environments, I have both bad news and great news. Bad news: you're doing it wrong. Great news: Helm exists, and it will change your life.
I once rebuilt an entire production environment from scratch because a teammate 'just clicked a few things' in the AWS console. That was the day I became a Terraform evangelist. Here's what I wish someone had told me on day one.
After years of being paged at 3 AM by outages nobody saw coming, I discovered the secret Netflix uses to sleep at night: deliberately blowing things up on their own terms. Chaos engineering isn't crazy — running production systems you've never stress-tested IS.
After countless deployments watching CI pipelines crawl, I finally learned what Docker's layer cache actually is — and how one misplaced COPY instruction was costing us 8 minutes on every single push. Here's how to stop throwing money at slow builds.
After one too many 'we'll just deploy and watch the errors' moments that turned into production incidents, I discovered canary deployments. Now I ship to 1% of users first, sleep normally, and only promote to 100% when the metrics agree.
Your pods keep dying with OOMKilled and you have no idea why? After surviving countless 3 AM pages from Kubernetes eating my apps alive, I figured out the exact resource limits strategy that keeps pods happy — and your pager silent.
After years of clicking around the AWS console and forgetting what I built, Terraform saved my sanity. Infrastructure as Code means your production environment is reproducible, auditable, and won't silently diverge while you sleep. Here's what I wish someone had shown me on day one.
Your Kubernetes pod is 'Running' but returning 503s to every user? After debugging countless production incidents, I learned that liveness, readiness, and startup probes are the difference between real health and a zombie pod that just looks alive.
After years of SSHing into production servers to 'quickly fix' things and creating configuration drift nightmares, I discovered GitOps. ArgoCD made our cluster self-healing. Here's everything I wish I knew before losing two Fridays to manual kubectl apply sessions.
Your pod is running fine in staging, then dies mysteriously in production. No logs, no warning, just 'OOMKilled'. After getting paged at 3 AM one too many times, here's everything you need to know about Kubernetes resource limits and requests.
After years of white-knuckling every production deploy and praying nothing broke, I discovered blue-green deployments. Now my team ships on Fridays. On purpose. Here's how we got there.
Your pods keep getting OOMKilled and you have no idea why? After watching production nodes melt down at 3 AM, I learned the hard way that Kubernetes resource requests and limits are not optional - they're survival gear.
After drowning in Kubernetes YAML for months, I discovered ECS — Amazon's managed container service that lets you run Docker in production without needing a PhD in distributed systems. Here's everything I learned the hard way!
Your pods keep getting OOMKilled and nodes go NotReady at the worst possible moment? After debugging too many production meltdowns, I learned that resource requests and limits aren't optional - they're survival skills.
I once managed three Kubernetes environments by maintaining three near-identical YAML folders. Dev, staging, prod — different by exactly three lines each. Then I discovered Helm and felt simultaneously enlightened and deeply ashamed of my past self.
Your pod randomly dies at 2 AM and you have no idea why? After getting paged at 3 AM more times than I care to admit, I finally learned how Kubernetes resource requests and limits work - and why getting them wrong will destroy your cluster (and your sleep).
After watching a junior dev delete the Terraform state file on a Friday afternoon and take down our entire staging environment, I became mildly obsessed with state management. Here's everything you need to know to not have that same Friday.
After countless deployments where my 'perfectly fine' Docker containers crashed in production, I finally learned what separates a dev Dockerfile from a production-hardened one. Spoiler: it's not just adding HEALTHCHECK at the end.
After countless 3 AM pages from production going down, I learned the hard way: your database doesn't have infinite connections. Here's how connection pooling saved my career and my sleep schedule!
After 7 years deploying to production Kubernetes clusters, I've seen developers treat ConfigMaps like password managers. Here's why your 'secrets' aren't secret at all - and how to actually protect them!
After countless deployments where I wondered 'wait, which version is running in prod?', I discovered GitOps - where Git isn't just your code repository, it's your deployment control center. Here's why treating Git as your single source of truth changed everything!
After 7 years of production deployments, I've been rate-limited by Docker Hub during critical deploys way too many times. Here's how I escaped Docker Hub jail and cut our registry costs by 80%!
After 7 years of production deployments and one very public GitHub leak that cost us $3,000 in AWS charges, I learned that managing secrets isn't optional - it's survival. Here's how to stop hardcoding passwords like it's 2005!
After 7 years of production deployments and countless 3 AM incidents, I learned that health checks aren't optional - they're the difference between 'my app is down' and 'my app auto-heals itself.' Here's how to stop shooting yourself in the foot!
After 7 years deploying production apps, I finally bit the bullet and learned Kubernetes. Turns out it's not as scary as the YAML makes it look. Here's what I wish someone had told me before I spent 3 days debugging a typo in my deployment config!
Your Docker image is 2GB and takes 10 minutes to deploy? After countless production deployments, I learned that multi-stage builds can shrink images by 90% - here's how to stop shipping garbage to production!
Still showing 'Site under maintenance' during deploys? After 7 years of production deployments, here's how I went from scary Friday night releases to confident anytime deploys - without downtime!
Committing API keys to Git? Hardcoding database passwords? Let's talk about managing configs and secrets the RIGHT way - because 'It works on my machine' isn't a deployment strategy!