Grafana Loki 3 on Ubuntu 24.04

## Grafana Loki 3 on Ubuntu 24.04 by cloudimg

Grafana Loki is the log-aggregation system from the Grafana Labs ecosystem — index-only-on-labels (no full-text index), horizontally scalable, cheap to operate, and designed to integrate seamlessly with Grafana, Promtail, Fluent Bit, and OpenTelemetry. The cloudimg image installs Loki 3.7 (single Go binary, ~60 MB resident) configured for single-tenant filesystem storage — ready to ingest logs from day one.

Why Choose cloudimg?

* 24/7 Expert Support with guaranteed 24 hour response. support@cloudimg.co.uk

* Production Ready from Launch Pre-configured, security-patched, validated

* Azure Native Integration Azure Linux Agent, cloud-init, Gen2 Hyper-V, TrustedLaunch

* Zero-config logging Loki HTTP API ready on port 3100 immediately after VM boot

What is Included

* Loki 3.7.x single Go binary at /usr/local/bin/loki (from official grafana/loki GitHub release)

* Single-tenant filesystem store at /var/lib/loki (chunks + rules + WAL)

* HTTP API on TCP 3100 — push, query_range, query, metrics, ready endpoints

* gRPC API on TCP 9096 (cluster-internal)

* loki.service running as loki:loki system user

* Prometheus-format /metrics endpoint for scraping

* loki-firstboot.service writes per-VM URLs to /stage/scripts/loki-credentials.log

* Ubuntu 24.04 LTS base with latest security patches

* 24/7 cloudimg support with guaranteed 24 hour response SLA

Recommended Virtual Machine Sizes

* Standard_B2s (2 vCPU, 4 GB RAM) — moderate single-tenant workloads (~thousands of log lines/sec)

* Standard_D4s_v5 (4 vCPU, 16 GB RAM) — production single-VM with Azure Blob backend

* Standard_D8s_v5 (8 vCPU, 32 GB RAM) — high-volume aggregation with retention