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  The Secret Life of AWS: The Assembly Line (AWS CodePipeline) # aws # codepipeline # cicd # devops Stop dragging zip files. Build a robot that deploys for you. Part 38 of The Secret Life of AWS Timothy hated Tuesdays. Tuesday was Deployment Day. He sat at his desk, his palms sweating. On his screen was a folder containing three files: checkout-service-v2.zip checkout-service-v2-FINAL.zip checkout-service-v2-FINAL-fixed.zip He took a deep breath. Open AWS Console. Navigate to Lambda. Click "Upload from .zip file". Select the file. Click Save. Pray. He hit Save. The spinner spun. Error:   SyntaxError: Unexpected token "No!" Timothy shouted. "It worked on my machine!" Margaret appeared at his door, holding her tea. "Timothy, why are you shouting at the console?" "I uploaded the wrong version," Timothy said, burying his face in his hands. "I must have clicked the old zip file. It works locally, I swear." "You are hand-crafti...

  The Secret Life of Azure: The Bill That No One Expected # azure # finops # devops # cloud Mastering the financial guardrails of the cloud with Azure Cost Management. Governance & Guardrails The library was bustling, but Timothy was staring at a small envelope on his desk with a look of pure confusion. He hadn't even opened it yet. "Margaret," he said as she approached, "I think I’m afraid of this piece of mail. We’ve built everything so perfectly—the Key Vault is secure, the identities are managed, and the logs are flowing. But I have no idea what all this 'perfection' is costing us. What if the bill is more than the library's entire budget?" Margaret pulled up a chair and picked up a piece of green chalk. "The most important guardrail isn't a firewall or a password, Timothy—it’s the  Budget . In the cloud, resources are like electricity; they stay on until you tell them to stop, and they charge you by the second." She drew a larg...

  The Secret Life of Python: Truthiness and Falsy Values # python # coding # programming # softwaredevelopment Why Python treats 0, empty strings, None, and empty lists as "False" Timothy was staring at his screen, looking defeated. He was building a "Player Rewards" dashboard for a local chess club, but the data seemed to be gaslighting him. "Margaret, Python is lying to me," Timothy said, pointing at his code. "I have a player, Alex, who played his first match and got a score of 0. But my program is telling him he hasn't even started yet." He showed her the logic: # Timothy's Score Checker score = 0 # Alex's actual score if score : print ( f " Current Score: { score } " ) else : print ( " Welcome! Please play a match to see your score. " ) Output: Welcome! Please play a match to see your score. "Alex is sitting right there with 0 points," Timothy grumbled. "The score exists! Why ...

  AWS Under Real Load: Delete Storms and Lifecycle Expiration Spikes in Amazon S3 # aws # S3 # devops # cloud A production-grade diagnostic and prevention guide for latency stretch and instability caused by large-scale deletes and lifecycle expiration events in Amazon S3. Problem A system that previously ran smoothly begins experiencing: Rising P95/P99 latency Slower PUT and GET responses Unexpected LIST sluggishness Increased Lambda invocation volume No obvious 503 surge No regional outage The only recent change? A large cleanup job. Lifecycle expiration kicking in. Or a mass object purge. Dashboards are mostly green. But the system feels strained. Clarifying the Issue 📌 Large-scale delete activity is not free. Under real load, mass deletions can: Generate high volumes of DELETE requests Trigger internal metadata updates Create replication activity (if enabled) Emit event notifications Compete with live read/write traffic Lifecycle expiration behaves similarly. When expiration ru...