LPI DevOps Tools Engineer case studies
LPI DevOps Tools Engineer · Put your knowledge to work in context.
The Linux Professional Institute DevOps Tools Engineer is a vendor-neutral certification awarded after passing Exam 701, exam code 701-200, whose objectives are published as version 2.0.0. LPI describes it as a required exam for the certification and states there is no requirement to possess any other certification, though it recommends holders maintain at least one active certification in system administration or software development at a level equivalent to LPIC-1. The LPI DevOps Tools Engineer case studies are 5 cases and about 4,302 words.
1Monorepo CI: Cache Misses, Flaky Integration Tests, and Manual Release Tags
Your team runs a monorepo with 40 Go services and 12 Node.js frontends. The CI pipeline on every pull request takes 38 minutes: it builds all images, runs unit tests, then a single integration suite against a shared staging namespace.
884 words, about 4 min2Node.js Image Size, Signal Handling, and Aggressive Probes
An internal Node.js 18 service is packaged as a single-stage image based on node:18 . The image is 1.24 GB, runs as root, and includes devDependencies, test fixtures, and a full compiler toolchain.
856 words, about 4 min3JVM Pods: OOMKills, CPU Throttling, and a Stuck Rolling Update
A Deployment runs 12 replicas of a Java API on a 6-node cluster. Each pod requests 100m CPU and 256Mi memory, with limits of 500m and 512Mi.
916 words, about 5 min4Shared Cluster Secrets, Overbroad RBAC, and Unverified Images
A team deploys to a shared Kubernetes cluster. Application secrets are stored as base64-encoded values in a Secret manifest committed to Git and applied with kubectl apply .
817 words, about 4 min5High-Cardinality Metrics, Noisy 5xx Alerts, and 100% Tracing
An e-commerce platform runs 30 microservices on Kubernetes. Prometheus scrapes 1.2 million active series; the largest offenders are HTTP metrics labeled with user id and request id .
829 words, about 4 min