Jogos e Simuladores DevOps

Follow production logs from applications through collection, parsing, filtering, buffering, sharded indexing, and search. Trigger traffic spikes, parser failures, and slow indexing to see where backpressure builds and logs can be lost.

Watch what really happens when you run docker run -p 8080:80 nginx, one layer at a time. Step down the whole stack: the CLI, the daemon, the registry pull, containerd, the OCI runtime bundle, runc, the running container, and the shared Linux kernel. Every stage shows the real low-level command you can run yourself, so it doubles as a tour of the primitives that make a container: namespaces, cgroups, and runc. A container is not a small VM, and this shows you why.

Watch a coding agent run an agentic loop, one step at a time. A planner, a builder, and a judge cycle through plan, build, verify, and repeat until the goal is met. Toggle the separate judge off to see why an agent grading its own work ships confident bugs. An animation-first, interactive explainer of loop engineering and how it maps to Claude Code.

Practice MongoDB queries in an interactive browser terminal. Learn find and projections, query operators like $lt, $gt, and $in, sort, skip, limit, countDocuments, insert, update, delete, and the aggregation pipeline with $match, $group, and $sort, against a small e-commerce dataset that runs live in your browser.

Practice SQL in an interactive browser terminal. Learn SELECT, WHERE, ORDER BY, DISTINCT, aggregates, GROUP BY, HAVING, JOINs, subqueries, and window functions against a small e-commerce schema, with single-table queries evaluated live and verified Postgres output.

Practice the psql tool and Postgres engine in an interactive browser terminal. Explore with meta-commands, read real EXPLAIN plans, add an index to turn a sequential scan into a bitmap index scan, and use BEGIN and ROLLBACK to make changes safe, all against a small e-commerce database with verified PostgreSQL output.

Learn Terraform basics in an interactive browser lab. Read and edit the HCL config, run init, validate, plan, apply, and destroy, and watch state react to your edits. A free, hands-on way to learn infrastructure as code with no AWS account.

Learn latency percentiles with an interactive simulator. Generate request samples, visualize distributions, compare average latency with P50, P90, P95, and P99, and see how tail latency affects real users.

Visualize JavaScript promises, async/await, microtasks, task queues, setTimeout ordering, rejection handling, and Promise.all with an interactive event-loop simulator inspired by classic JavaScript visual guides.

Visualize Kubernetes networking and CNI packet paths with an interactive simulator. Learn Pod-to-Pod routing, same-node and cross-node traffic, ClusterIP Services, EndpointSlices, headless Services, LoadBalancer, NodePort, kube-proxy, eBPF service routing, Ingress, NetworkPolicy, and internet egress.

Practice Kubernetes commands in an interactive browser terminal. Learn kubectl contexts, nodes, Pods, Deployments, Services, rollouts, logs, exec, events, ConfigMaps, and cleanup workflows with a live cluster visualization.

Practice Git in an interactive browser terminal with a visual repository model. Learn the working directory, staging area, local commits, branch pointers, remotes, fast-forward merges, fetch, and rebase.

Visualize OAuth 2.0 and OpenID Connect flows with an interactive simulator. Learn authorization code + PKCE, state, nonce, redirect URI checks, ID tokens, access tokens, refresh tokens, scopes, UserInfo, and common auth failure modes.

Visualize how message queues work across Kafka and RabbitMQ patterns. Explore producers, brokers, topics, partitions, exchanges, queues, consumer groups, lag, rebalancing, backpressure, ordering, and dead letter queues.

Practice Docker commands in an interactive browser terminal. Learn images, containers, logs, exec, Dockerfile builds, volumes, networks, and Docker Compose with a live Docker daemon visualization.

Visualize how SMTP email delivery works from app submission through EHLO, STARTTLS, AUTH, MAIL FROM, RCPT TO, DATA, SPF, DKIM, DMARC, recipient MX relay, retries, bounces, and inbox placement. Sponsored by SMTPfast.

Visualize the PostgreSQL wire protocol with an interactive simulator. Step through TLS negotiation, StartupMessage, SCRAM authentication, simple queries, extended queries, RowDescription, DataRow streams, ErrorResponse, COPY, and ReadyForQuery.

Explore database replication, sharding, and scaling with an interactive simulator. Compare sync vs async replication, shard key choices, hot spots, failover behavior, read replicas, write scaling, connection pooling, cost, and latency.

Visualize how the infamous :(){ :|:& };: fork bomb works. Watch processes multiply exponentially, exhaust system resources, and learn how to protect against it with ulimit, cgroups, and systemd.

Learn Prometheus Query Language (PromQL) with an interactive playground. Master label filtering, rate calculations, aggregations, and histogram quantiles with real-time query execution.

Visualize how service mesh proxies handle traffic between microservices. Learn mTLS, traffic splitting, retries, circuit breakers, and explore Istio and Linkerd patterns.

Learn how DNS works with an interactive step-by-step simulator. Visualize the DNS hierarchy, understand caching at different levels, and see the difference between recursive and iterative queries.

Learn how database indexes work with an interactive simulator. See the difference between full table scans and index seeks, understand B-tree structure, and learn when to create indexes.

Interactive game to learn scaling strategies for web applications. Experiment with horizontal and vertical scaling, see the effects on performance, cost, and reliability with realistic pricing simulation and budget constraints.

Learn how different load balancing algorithms distribute traffic across servers. Experiment with Round Robin, Least Connections, IP Hash, and more. See how load balancers handle failures and optimize performance.

Interactive visualization showing the differences between TCP's reliable connection-oriented protocol and UDP's fast connectionless approach. See the 3-way handshake, packet loss, and retransmissions in action.

Educational simulator to understand how DDoS attacks work with stunning real-time visualizations, multiple attack vectors, and protection mechanisms.