Running Modern Systems

Tutorial Prometheus docs

Install Prometheus, scrape targets, run PromQL queries, and configure your first alert.

Tutorial Grafana Labs blog

Approachable intro to PromQL data types, selectors, rate, and aggregation operators.

Tutorial Grafana docs

Install Grafana, connect a data source, build dashboards, and configure alerting.

Tutorial OpenTelemetry docs

Instrument an app with traces, metrics, and logs using the Collector and language SDKs.

Tutorial OpenTelemetry docs

Microservices reference app showing real instrumentation across many languages and signals.

Tutorial Grafana docs

Install Loki, ship logs with Promtail or Alloy, and query them with LogQL in Grafana.

Tutorial Grafana docs

Deploy Tempo, instrument an app, configure a collector, and visualize traces in Grafana.

Tutorial Grafana docs

Spin up a local Tempo instance via Docker Compose to explore distributed tracing end-to-end.

Tutorial Grafana docs

Run Mimir in monolithic mode, scrape Prometheus metrics, and query them through Grafana.

Best Practices Grafana docs

Architecture, operations, and tenancy patterns for long-term Prometheus storage at scale.

Tutorial Pydantic docs

Install Logfire, instrument Python apps, and view structured traces and logs in the UI.

Tutorial Honeycomb docs

Send events via OpenTelemetry, run BubbleUp queries, and investigate production issues.

Tutorial Datadog docs

Install the Datadog Agent, instrument an app, and explore your first traces.

Best Practices Datadog docs

APM landing page: instrumentation, configuration, and trace correlation for production workloads.

Tutorial Sentry docs

SDK install, DSN configuration, and verification across backend languages and frameworks.

Best Practices Sentry docs

Docs root covering error tracking, performance, profiling, alerts, and release health.

Tutorial New Relic docs

Introductory tour of APM, infrastructure, browser, and alerting flows with quick install paths.

Tutorial New Relic docs

Language-agent install guides plus the core APM concepts for instrumenting a production service.

Best Practices Better Stack docs

Vendor-maintained primer on metrics, traces, logs, dashboards, and alerting strategies.

Tutorial Better Stack docs

Send OTLP traces into Better Stack using the collector or OpenTelemetry directly.

Best Practices Axiom docs

Introduction to Axiom's EventDB and MetricsDB platform for telemetry at scale.

Tutorial SigNoz docs

Install SigNoz via cloud, Docker Compose, or Kubernetes Helm to start ingesting OTLP signals.

Best Practices SigNoz docs

Overview of SigNoz's open-source logs, traces, and metrics on OpenTelemetry.

Best Practices PagerDuty docs

Official knowledge-base entry point with onboarding training and configuration guidance.

Best Practices PagerDuty Incident Response

PagerDuty's open documentation on building an incident response practice, including roles and process.

Tutorial Atlassian docs

Configure profile, notification rules, schedules, and integrations to start receiving alerts.

Best Practices Atlassian docs

Mental model for teams, schedules, escalations, and routing rules in Opsgenie.

Tutorial Grafana docs

Stand up OnCall, wire integrations, define notification policies, and connect Slack.

Best Practices Grafana docs

Reference for OnCall scheduling, escalations, integrations, and notification policies.

Tutorial FireHydrant docs

Walks first-time admins through the integrations and configuration needed before the first incident.

Best Practices FireHydrant docs

Full docs covering Signals alerting, incident lifecycle, catalog, and runbooks.

Best Practices incident.io docs

Searchable docs for On-call, Response, Status Pages, Catalog, Workflows, and Insights.

Tutorial Atlassian docs

Configure components, subscriber channels, and your first incident communication.

Best Practices Atlassian docs

Pre-launch checklist covering branding, components, automation, and subscriber setup.

Tutorial Better Stack docs

Create incidents from monitors, manually, or via API; resolve, group, and post-mortem them.

Best Practices Better Stack docs

Product overview tying on-call schedules, Slack workflows, and status pages into one offering.

Tutorial Vector docs

Install Vector and build your first sources to transforms to sinks observability pipeline.

Best Practices Vector docs

Reference for every Vector component, plus operating-at-scale guidance.

Tutorial Fluent Bit docs

Install Fluent Bit on Linux, macOS, Windows, or BSD and ship your first pipeline.

Best Practices Fluent Bit docs

Inputs, parsers, filters, outputs, and operating Fluent Bit in production.

Tutorial Fluentd docs

Installation, configuration, and the basic log forwarder pattern with Fluentd.

Best Practices Fluentd docs

Plugin, deployment, and tuning guides for Fluentd in production.

Tutorial Bento docs

Install Bento (the WarpStream-maintained Benthos fork) and run your first stream-processing config.

Best Practices Bento docs

Conceptual intro to Bento's declarative, at-least-once stream processing pipelines.

Tutorial Cribl docs

One-hour hands-on tour of Sources, Routes, Pipelines, Functions, and Destinations.

Best Practices Cribl docs

Documentation root for Cribl Stream covering deployment, processing, and routing.

Tutorial Grafana docs

Run Pyroscope, instrument your app with an SDK or Alloy, and explore flame graphs in Grafana.

Tutorial Grafana docs

Hands-on demo app that walks through diagnosing CPU and memory issues with continuous profiling.

Best Practices Parca docs

Intro to Parca's server plus eBPF agent architecture for always-on continuous profiling.

Best Practices Polar Signals docs

How Polar Signals Cloud combines a zero-instrumentation eBPF agent with hosted symbolization.

Tutorial Polar Signals docs

Deploy the Polar Signals agent and stream profiles into Polar Signals Cloud.

Best Practices Pixie docs

How Pixie uses eBPF for auto-telemetry on Kubernetes without manual instrumentation.

Tutorial Datadog docs

Profile a sample service, find a real performance problem, and fix it with the Datadog Profiler.

Best Practices Datadog docs

Reference docs for enabling, configuring, and interpreting profile data across runtimes.

Best Practices Brendan Gregg

Brendan Gregg's canonical page introducing flame graphs, types, and how to read them.

Tutorial GitHub

The official flamegraph.pl toolchain with stack-collapse scripts for perf, DTrace, and friends.

Tutorial bpftrace docs

Learn bpftrace in 12 lessons through one-liners covering probes, maps, and printf actions.

Best Practices bpftrace docs

Reference docs, language guides, and labs for dynamic Linux tracing with bpftrace.

Tutorial Auth0 docs

Set up a tenant, create applications, and integrate login via Universal Login and SDKs.

Best Practices Auth0 docs

Reference architectures for SPA+API, mobile+API, and B2B/B2C identity scenarios.

Tutorial Clerk docs

Framework-specific quickstarts (Next.js, React, Express, etc.) for adding Clerk auth in minutes.

Best Practices Clerk docs

Docs root covering auth strategies, components, organizations, billing, and deployment.

Tutorial WorkOS docs

Add a hosted auth flow with SSO, social login, and passkeys in under ten minutes.

Best Practices WorkOS docs

Enterprise-ready auth APIs: SSO, SCIM directory sync, audit logs, user management.

Tutorial Stytch docs

Overview of B2B and Consumer auth suites plus framework-specific quickstart paths.

Best Practices Stytch docs

Full API reference covering magic links, OTP, OAuth, sessions, and fraud detection.

Tutorial Keycloak docs

Run Keycloak in Docker, create a realm, register a client, and secure a sample app.

Best Practices Keycloak docs

Reference for realms, clients, identity brokering, user federation, and authentication flows.

Tutorial Ory docs

Get started with Ory Kratos identities, Hydra OAuth2/OIDC, Keto permissions, and Oathkeeper.

Tutorial SuperTokens docs

CLI-based quickstart for integrating SuperTokens SDKs across common backend and frontend stacks.

Best Practices SuperTokens docs

Authentication recipes: email/password, passwordless, social/enterprise SSO, and MFA.

Tutorial FusionAuth docs

Pick a 15-minute quickstart for your language or framework and stand up FusionAuth CIAM.

Best Practices FusionAuth docs

Install, identity providers, MFA, passkeys, and APIs reference.

Best Practices Logto docs

Logto identity-and-access overview: SSO, MFA, RBAC, multi-tenancy on OIDC and OAuth 2.1.

Tutorial Logto docs

Framework quickstarts (Python shown; 30+ SDKs available) for adding Logto auth to an app.

Tutorial HashiCorp Developer

Hands-on tutorials for KV secrets, dynamic database creds, transit encryption, and auth methods.

Best Practices HashiCorp Developer

Official checklist: end-to-end TLS, root token rotation, auditing, and least-privilege policies.

Best Practices AWS docs

Conceptual intro plus links into setup, retrieval, and rotation patterns.

Tutorial AWS docs

Hands-on tutorials covering moving hardcoded secrets, configuring rotation, and CodeGuru integration.

Tutorial Google Cloud docs

Create, access, and rotate a secret via console, gcloud, or client library.

Best Practices Google Cloud docs

Concepts, IAM, regional configs, and integration patterns for Secret Manager.

Best Practices 1Password Developer

Overview of Service Accounts and Connect server approaches to automating secret retrieval.

Tutorial 1Password Developer

Create a service account, scope its vaults, and authenticate the 1Password CLI in CI/CD.

Tutorial Doppler docs

Project and config setup, then sync secrets to local apps, cloud providers, and other stores.

Best Practices Doppler docs

SecretOps workflows, RBAC, audit logs, and integrations.

Tutorial Infisical docs

Sign up for Infisical Cloud or self-host, then manage secrets, certs, and access across environments.

Best Practices Infisical docs

Platform overview for secrets storage, rotation, references, and audit logging.

Best Practices getsops.io

CNCF-hosted project site for the editor that encrypts values inside YAML/JSON/ENV/INI files.

Tutorial GitHub

README with install and usage walkthroughs for SOPS with KMS, age, PGP, and Vault backends.

Tutorial GitHub

Official repo and README for age, a simple modern file-encryption tool with small explicit keys.

Tutorial Cloudflare docs

Enable Cloudflare's Managed Rulesets and OWASP Core Ruleset, tune paranoia and score thresholds.

Best Practices Cloudflare docs

Custom rules, rate limiting, exposed credentials, and bot rules.

Tutorial AWS docs

Build your first Web ACL, attach managed rule groups, and protect a CloudFront or ALB resource.

Best Practices AWS docs

Rules, rule groups, Firewall Manager, and Shield Advanced reference.

Best Practices Google Cloud docs

Conceptual intro to Cloud Armor security policies, preconfigured WAF rules, and load-balancer attach points.

Tutorial Google Cloud docs

Create a security policy, add prioritized rules, and attach it to a backend service.

Tutorial nftables wiki

Upstream wiki primer on tables, chains, rules, and families; the successor to iptables.

Best Practices nftables wiki

Examples, migration-from-iptables guides, and command reference.

Tutorial Ubuntu wiki

Official Ubuntu community wiki on enabling, configuring, and logging the Uncomplicated Firewall.

Best Practices Ubuntu docs

Canonical's server-docs section on configuring host firewalls with UFW.

Tutorial pfSense

Project landing page linking to install media, the docs portal, and configuration walkthroughs.

Best Practices Netgate docs

Netgate-maintained pfSense manual covering install, networking, VPN, and high availability.

Tutorial OPNsense docs

Hardware selection, install media, and first-boot configuration for OPNsense.

Best Practices OPNsense docs

Install, manual configuration, and the development manual.

Tutorial Let's Encrypt

Decide between provider-managed and self-managed ACME flows, with Certbot recommended for self-managed.

Best Practices Let's Encrypt

Rate limits, challenge types, ACME clients, and best practices.

Tutorial Linkerd docs

Install the CLI, deploy the control plane to Kubernetes, and mesh your first application.

Best Practices Linkerd docs

Conceptual overview of Linkerd's Rust-based service-mesh data plane and control plane.