From: Martin Pitt <martin@piware.de>
Date: Fri, 21 May 2021 06:08:03 +0000 (+0200)
Subject: Run unconfigured grafana and prometheus containers
X-Git-Url: https://piware.de/gitweb/?p=learn-metrics.git;a=commitdiff_plain;h=365e49f581459864b766b7fb6791a6ba081ac175;hp=365e49f581459864b766b7fb6791a6ba081ac175

Run unconfigured grafana and prometheus containers

Start with `./launch.sh`, tear down with `podman pod rm -f learn-metrics`.

Prometheus explorer at http://localhost:3001 (to avoid port conflict
with Cockpit). It can list or graph simple queries like
`go_memstats_heap_objects` or `go_memstats_heap_objects[5min]`.

Metrics source at <http://localhost:3001/metrics>
<http://metrics-prometheus:9090/metrics> (in grafana container).

Grafana UI at <http://localhost:3000>, log in as admin:foobar. Manually
add Prometheus data source at <http://metrics-prometheus:9090/metrics>.

This fails with "HTTP Error Not Found" with "Server" access (which is
usually what you want -- "Browser" access fails on CORS).
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