From cfc67572759af9a25ee037e7f7d129b518ebdc88 Mon Sep 17 00:00:00 2001
From: Florian Sesser <florian@private.storage>
Date: Mon, 5 Sep 2022 14:39:29 +0000
Subject: [PATCH] Monitoring: Count Tahoe's corruption advisories
---
nixos/modules/monitoring/exporters/tahoe.nix | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/nixos/modules/monitoring/exporters/tahoe.nix b/nixos/modules/monitoring/exporters/tahoe.nix
index 0f24bb6c..b04d69db 100644
--- a/nixos/modules/monitoring/exporters/tahoe.nix
+++ b/nixos/modules/monitoring/exporters/tahoe.nix
@@ -1,7 +1,7 @@
# Tahoe Prometheus metrics collector
#
-# Scope: Retrieves OpenMetrics from Tahoe and puts them
-# where textfile collector can find them.
+# Scope: Retrieve metrics from Tahoe and put them where Prometheus'
+# node-exporter's textfile collector can find them.
#
# Usage: Import this to every server running Tahoe.
#
@@ -55,14 +55,17 @@ in {
description = "Tahoe metrics gathering service";
after = [ "tahoe.storage.service" ];
startAt = cfg.interval;
- path = [ pkgs.curl ];
+ path = [ pkgs.coreutils pkgs.findutils pkgs.curl ];
restartIfChanged = false;
# Save to a temp file and then move atomically so the
# textfile collector won't read a partial file.
# See https://github.com/prometheus/node_exporter#textfile-collector
script = ''
- curl --silent --show-error --fail-with-body --output "${cfg.outFile}.tmp" "${cfg.scrapeEndpoint}"
+ NUM_CORRUPTION_ADVISORIES=$(find /storage/corruption-advisories/ -type f | wc -l)
+ echo "tahoe_corruption_advisories_total $NUM_CORRUPTION_ADVISORIES" > "${cfg.outFile}.tmp"
+
+ curl --silent --show-error --fail-with-body "${cfg.scrapeEndpoint}" >> "${cfg.outFile}.tmp"
mv "${cfg.outFile}.tmp" "${cfg.outFile}"
'';
};
--
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