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systemd: hm-module systemd.machines option + warn on fetch failures

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This commit is contained in:
Damocles 2026-05-07 21:36:58 +02:00
parent dfa3840d97
commit 628ae67b7d
2 changed files with 31 additions and 3 deletions
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20
nix/hm-module.nix
View file

@ -240,6 +240,26 @@ in
};
};
};
systemd = moduleOpt "systemd" (
(intervalOpt 15000)
// {
machines = lib.mkOption {
type = lib.types.listOf lib.types.str;
default = [ ];
example = [
"muede-pc2"
"monitoring@server.example.com"
];
description = ''
SSH targets to query via `busctl --host=<target>` for the
systemd applet's cross-machine tree. May include `localhost` /
the local hostname; duplicates are deduped at runtime. SSH
auth (keys, known_hosts, ssh config aliases) is the user's
responsibility - nova-shell only spawns busctl.
'';
};
}
);
statsDaemon = lib.mkOption {
default = { };
description = "Configuration for the nova-stats daemon.";

14
plugin/src/systemd_service.rs
View file

@ -486,8 +486,12 @@ impl qobject::SystemdService {
local_container_names
.iter()
.map(|(name, _, _)| {
fetch_via_busctl(name, &["--machine", name], false, "")
.unwrap_or_else(|(k, r)| MachineJson::errored(name.clone(), k, r, 0))
fetch_via_busctl(name, &["--machine", name], false, "").unwrap_or_else(
|(k, r)| {
tracing::warn!(target: "nova_plugin::systemd", machine = %name, kind = k, error = %r, "local container fetch failed");
MachineJson::errored(name.clone(), k, r, 0)
},
)
})
.collect()
} else {
@ -555,12 +559,16 @@ impl qobject::SystemdService {
false,
"",
)
.unwrap_or_else(|(k, r)| MachineJson::errored(cn.clone(), k, r, 0))
.unwrap_or_else(|(k, r)| {
tracing::warn!(target: "nova_plugin::systemd", host = %target, machine = %cn, kind = k, error = %r, "remote container fetch failed");
MachineJson::errored(cn.clone(), k, r, 0)
})
})
.collect();
m
}
Err((kind, reason)) => {
tracing::warn!(target: "nova_plugin::systemd", host = %target, kind = kind, error = %reason, "remote host fetch failed");
MachineJson::errored(target.clone(), kind, reason, prev_last_seen)
}
};