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swarm-grafana: a host dashboard for the collector's system metrics

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Adds host.json (hive and host filters over the hostmetrics series),
registers it in the provisioned dashboard list, lists it in the swarm
services handbook, and adds a module-eval case that it ships and every
query filters on both variables.
This commit is contained in:
atlas 2026-11-08 02:29:16 +01:00 • committed by mara
commit e9321297c0
1 changed files with 1022 additions and 0 deletions
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17
nix/module-eval/grafana.nix
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@ -624,6 +624,23 @@ let
]
) tables;
}
{
# The host board ships, and every query filters on both template
# variables: a panel missing one shows another hive's or host's numbers
# under this selection.
name = "the host dashboard ships, and every panel query filters on hive and host";
ok =
let
provider = lib.head grafanaWithAuthelia.containers.swarm-grafana.config.services.grafana.provision.dashboards.settings.providers;
shipped = lib.attrNames provider.options.path.entries;
board = builtins.fromJSON (builtins.readFile ../host-modules/swarm-grafana/dashboards/host.json);
exprs = lib.concatMap (p: map (t: t.expr) p.targets) board.panels;
in
lib.elem "host.json" shipped
&& lib.length exprs > 0
&& lib.all (e: lib.hasInfix "hive=~\"$hive\"" e && lib.hasInfix "\"host.name\"=~\"$host\"" e) exprs
&& lib.any (e: lib.hasInfix "system.cpu.time" e) exprs;
}
{
# The egress board ships, and its queries read the two squid log lines as
# squid writes them: the would_deny line's field layout, and the default