From bc3c5a1ffdecf02061933df4fb00ed11be06ce37 Mon Sep 17 00:00:00 2001
From: Jesse Luehrs <doy@tozt.net>
Date: Sun, 5 Jul 2020 19:31:02 -0400
Subject: add tarsnap metrics

---
 modules/tick/files/plugins/tarsnap              | 64 +++++++++++++++++++++++++
 modules/tick/files/plugins/tarsnap.conf         |  4 ++
 modules/tick/files/plugins/tarsnap.sudoers      |  3 ++
 modules/tick/manifests/client/plugin/tarsnap.pp | 18 +++++++
 4 files changed, 89 insertions(+)
 create mode 100644 modules/tick/files/plugins/tarsnap
 create mode 100644 modules/tick/files/plugins/tarsnap.conf
 create mode 100644 modules/tick/files/plugins/tarsnap.sudoers
 create mode 100644 modules/tick/manifests/client/plugin/tarsnap.pp

(limited to 'modules/tick')

diff --git a/modules/tick/files/plugins/tarsnap b/modules/tick/files/plugins/tarsnap
new file mode 100644
index 0000000..0352cdb
--- /dev/null
+++ b/modules/tick/files/plugins/tarsnap
@@ -0,0 +1,64 @@
+#!/usr/bin/env ruby
+
+require 'date'
+
+def parse_archive(archive)
+  # tozt-daily-2018-12-31_03:34:13-homedoypass
+  m = archive.match(/
+    \A
+    (?<host>[a-z]+) # tozt
+    -
+    (?<period>[a-z]+) # daily
+    -
+    (?<year>[0-9]+) # 2018
+    -
+    (?<month>[0-9]+) # 12
+    -
+    (?<day>[0-9]+) # 31
+    _
+    (?<hour>[0-9]+) # 03
+    :
+    (?<minute>[0-9]+) # 34
+    :
+    (?<second>[0-9]+) # 13
+    -
+    (?<name>[a-z_]+) # homedoypass
+    \z
+  /x)
+  raise "failed to parse archive name '#{archive}'" if m.nil?
+
+  parsed = m.names.zip(m.captures).to_h
+  parsed["time"] = Time.new(
+    m["year"],
+    m["month"],
+    m["day"],
+    m["hour"],
+    m["minute"],
+    m["second"]
+  )
+  parsed
+end
+
+archives = %x(sudo tarsnap --list-archives)
+  .lines
+  .map(&:chomp)
+  .map{|s| parse_archive(s)}
+
+now = Time.now
+most_recent_since = {}
+archives.each do |archive|
+  name = archive["name"]
+  since = now - archive["time"]
+
+  if most_recent_since[name].nil? || since < most_recent_since[name]
+    most_recent_since[name] = since
+  end
+end
+
+stats = %x(sudo tarsnap --print-stats)
+bytes = stats.chomp.match(/(\d+)\z/).to_s.to_i
+
+most_recent_since.sort.each do |name, since|
+  puts "tarsnap,name=#{name} days_since_last_run=#{since.to_f / 60.0 / 60.0 / 24.0}"
+end
+puts "tarsnap file_size=#{bytes}i"
diff --git a/modules/tick/files/plugins/tarsnap.conf b/modules/tick/files/plugins/tarsnap.conf
new file mode 100644
index 0000000..6a68c1e
--- /dev/null
+++ b/modules/tick/files/plugins/tarsnap.conf
@@ -0,0 +1,4 @@
+[[inputs.exec]]
+commands = ["/etc/telegraf/plugins/tarsnap"]
+data_format = "influx"
+timeout = "30s"
diff --git a/modules/tick/files/plugins/tarsnap.sudoers b/modules/tick/files/plugins/tarsnap.sudoers
new file mode 100644
index 0000000..d915bf8
--- /dev/null
+++ b/modules/tick/files/plugins/tarsnap.sudoers
@@ -0,0 +1,3 @@
+Cmnd_Alias TARSNAP = /usr/bin/tarsnap
+telegraf  ALL=(ALL) NOPASSWD: TARSNAP
+Defaults!TARSNAP !logfile, !syslog, !pam_session
diff --git a/modules/tick/manifests/client/plugin/tarsnap.pp b/modules/tick/manifests/client/plugin/tarsnap.pp
new file mode 100644
index 0000000..e7b0a5b
--- /dev/null
+++ b/modules/tick/manifests/client/plugin/tarsnap.pp
@@ -0,0 +1,18 @@
+class tick::client::plugin::tarsnap {
+  file {
+    "/etc/telegraf/telegraf.d/tarsnap.conf":
+      source => 'puppet:///modules/tick/plugins/tarsnap.conf',
+      require => [
+        File["/etc/telegraf/telegraf.d"],
+        File["/etc/telegraf/plugins/tarsnap"],
+      ],
+      notify => Service["telegraf"];
+    "/etc/telegraf/plugins/tarsnap":
+      source => 'puppet:///modules/tick/plugins/tarsnap',
+      mode => '0755',
+      require => File['/etc/telegraf/plugins'];
+    "/etc/sudoers.d/telegraf-tarsnap":
+      source => 'puppet:///modules/tick/plugins/tarsnap.sudoers',
+      require => Package['sudo'];
+  }
+}
-- 
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