Observability
Alloy and the Grafana Labs ecosystem: which component for which tool?
The map of Alloy integrations with Faro, Beyla, k6, Loki, Mimir, Tempo, Pyroscope, Database Observability, Fleet Management and Kubernetes Monitoring.
Guides & insights
A library for curious minds
Systems & Linux
Linux system architecture: kernel, boot and directory tree
Understand how a Linux server works: kernel and user space, the UEFI, GRUB, initramfs and systemd boot sequence, the FHS directory tree, /proc and /sys, a…
Systems & Linux
Packages, systemd services, logs and scheduled tasks
Install and update software with apt and dnf, manage services with systemctl, write a systemd unit, read logs with journalctl and schedule tasks with cron…
Systems & Linux
Storage on Linux: disks, partitions, file systems and LVM
Administer Linux storage: lsblk and blkid, GPT partitioning, ext4 and XFS, mounting and /etc/fstab, LVM (PV, VG, LV) and online extension, swap, disk spac…
DevOps
Observing a k6 test: Prometheus, Grafana and correlation with the system under test
Send k6 results to Prometheus (remote write) or via OpenTelemetry, visualize them in Grafana and correlate them with the metrics, traces and profiles of t…
Observability
Grafana Loki: the Prometheus-inspired log system
Discover Grafana Loki: the label-indexing philosophy, architecture (distributor, ingester, querier, compactor), comparison with Elasticsearch, deployment …
Observability
Grafana Alloy: Metrics Collection (Prometheus & Ecosystem)
Learn how to configure Grafana Alloy to collect, transform, and forward metrics using the Prometheus ecosystem and the OpenTelemetry (OTLP) standard.
Proxy & networking
The HAProxy ecosystem: Open Source, Enterprise, HAProxy Fusion, Edge and HAProxy One
Understand the differences, advantages and connections between HAProxy OSS, Enterprise, Fusion, Edge and the unified HAProxy One platform.
Observability
Grafana Alloy: collecting system metrics and local logs
Learn how to configure Grafana Alloy to monitor the server it runs on, with a focus on configuration methods (UI vs code) and their impact.
Observability
Agent policies, integrations, data streams and pipelines
Build agent policies, add integrations (System, Nginx, Custom Logs), choose namespaces, customise ingestion with @custom pipelines and processors, and man…
Observability
Fluent Bit: pipeline inputs in detail
Everything about Fluent Bit inputs: the role of tags, reading files with tail (positions, rotation, multiline), journald, syslog, forward, OpenTelemetry, …
Cloud computing
Storage on AWS: S3, EBS, EFS and backup
Store data on AWS: Amazon S3 (buckets, storage classes, versioning, lifecycle, encryption, policies and public access blocking), EBS volumes, EFS file sys…
Learning never stops