Guides & insights
Proxy & networking
Traefik middlewares modify requests and responses between the router and the service: BasicAuth and ForwardAuth authentication, security headers, rate lim…
Observability
Configure Dynatrace's cross-cutting settings: entity ownership, maintenance windows, naming rules, key requests and automatic or manual tags.
DevOps
The structure of a k6 script (init, setup, default, teardown), HTTP requests, checks, groups and tags, and modeling load with scenarios and executors.
Observability
Sync Grafana dashboards and folders with a GitHub repository: prerequisites, token, setup in Administration > Provisioning, saving through commits or pull…
Observability
Analyze web and mobile frontend errors: exceptions, CSP, requests, crashes, ANRs.
Observability
Handle GDPR requests (export, erasure) and delete sensitive data ingested by mistake.
Automation
Automate Terraform: plan pipeline on merge requests and apply after approval, posting the plan as a comment, OIDC federated identities to AWS, Azure and G…
Proxy & networking
Expose Traefik metrics (Prometheus or OTLP), understand the series per entrypoint, router and service, write useful PromQL queries and essential alerts.
DevOps
Organize work with Git in a DevOps approach: trunk-based development or GitFlow, short-lived branches, pull requests and code reviews, branch protection, …
Observability
Link browser requests to back-end traces: TracingInstrumentation, traceparent header propagation, CORS, and navigating in Grafana from the session to the …
Observability
Implement availability and latency SLIs with Prometheus: required metrics, ratio queries, histograms, multi-window recording rules and remaining budget.
Containers
Master Kubernetes workloads: anatomy of a pod, ReplicaSet, Deployment, RollingUpdate and Recreate strategies, requests/limits, StatefulSet, DaemonSet and …
Learning never stops
