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fix: node_exporter - exclude docker/podman/kubelet mounts and /home/ryan bindmounts

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Ryan Yin
2025-09-14 10:13:13 +08:00
parent e5b9a4917e
commit c8182216ae
1 changed files with 13 additions and 0 deletions
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13
modules/nixos/base/monitoring.nix
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@@ -14,5 +14,18 @@
# use either enabledCollectors or disabledCollectors # use either enabledCollectors or disabledCollectors
# disabledCollectors = []; # disabledCollectors = [];
extraFlags = [
# Exclude pseudo/ephemeral FS:
# - /proc, /sys: kernel pseudo-FS, always size 0
# - /dev: tmpfs/devices, not meaningful for disk usage
# Exclude container/runtime mounts:
# - /var/lib/docker/, /var/lib/containers/ and /var/lib/kubelet/ → too much overlay/tmpfs mounts,
# often EACCES (strict perms, namespaces) → false alerts
# Exclude user bind mounts:
# - /home/ryan/.+ → bind-mounted from /persistent (NixOS tmpfs-root setup),
# monitoring /persistent is sufficient
"--collector.filesystem.mount-points-exclude=^/(dev|proc|sys|var/lib/docker/.+|var/lib/containers/.+|var/lib/kubelet/.+|home/ryan/.+)($|/)"
];
}; };
} }