Grafana Loki 3 on Ubuntu 24.04 LTS

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