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Show file system inode usage and read-only status

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This commit is contained in:
Josh Holtrop 2026-04-14 08:41:39 -04:00
parent 1e87b08b54
commit 23008b4997
2 changed files with 51 additions and 13 deletions
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33
bin/malpd
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@ -3,6 +3,7 @@
require "socket"
require "fileutils"
require "json"
require "shellwords"
SOCKET_PATH = "/run/malpd/malpd.sock"
@ -63,8 +64,16 @@ def read_smart(name)
result
end
def read_inodes(mount)
out = `stat -f -c '%c %d' #{Shellwords.escape(mount)} 2>/dev/null`.strip
return nil if out.empty?
total, free = out.split.map(&:to_i)
return nil unless total && total > 0
[total, total - free]
end
def read_filesystems
out = `findmnt -J -b -o SOURCE,TARGET,FSTYPE,SIZE,USED 2>/dev/null`
out = `findmnt -J -b -o SOURCE,TARGET,FSTYPE,SIZE,USED,OPTIONS 2>/dev/null`
return [] if out.empty?
data = JSON.parse(out) rescue nil
return [] unless data
@ -86,14 +95,22 @@ def read_filesystems
key = [source, target]
next if seen[key]
seen[key] = true
result << {
"type" => "filesystem",
"source" => source,
"mount" => target,
"fstype" => fstype,
"size" => size,
"used" => node["used"].to_i
opts = node["options"].to_s.split(",")
entry = {
"type" => "filesystem",
"source" => source,
"mount" => target,
"fstype" => fstype,
"size" => size,
"used" => node["used"].to_i,
"readonly" => opts.include?("ro")
}
if (ino = read_inodes(target))
entry["inode_total"] = ino[0]
entry["inode_used"] = ino[1]
end
result << entry
end
result
end

31
cgi-bin/malp.rb
View File

@ -210,21 +210,42 @@ if cgi.params.key?("content")
used_b = entry["used"].to_i
pct_f = size_b > 0 ? (used_b * 100.0 / size_b) : 0.0
pct = pct_f.round
cls = pct_f >= 90 ? "bad" : pct_f >= 75 ? "warn" : "ok"
space_cls = pct_f >= 90 ? "bad" : pct_f >= 75 ? "warn" : "ok"
used_h = CGI.escapeHTML(human_capacity(used_b))
size_h = CGI.escapeHTML(human_capacity(size_b))
fs_stats = []
inode_cls = "ok"
if (itot = entry["inode_total"].to_i) > 0
iused = entry["inode_used"].to_i
ipct_f = iused * 100.0 / itot
inode_cls = ipct_f >= 90 ? "bad" : ipct_f >= 75 ? "warn" : "ok"
fs_stats << [inode_cls, "Inodes #{ipct_f.round}%"]
end
fs_stats << ["warn", "READ-ONLY"] if entry["readonly"]
severities = [space_cls, inode_cls]
card_cls = severities.include?("bad") ? "bad" :
severities.include?("warn") ? "warn" : "ok"
stats_html = fs_stats.map { |c, txt|
%(<span class="stat #{c}">#{CGI.escapeHTML(txt)}</span>)
}.join
stats_block = fs_stats.empty? ? "" :
%(<div class="drive-stats" style="margin-top:0.6rem;">#{stats_html}</div>)
html << <<~HTML
<div class="card #{cls}">
<div class="card #{card_cls}">
<div class="card-header">
<span class="card-title">#{mount} <span class="card-capacity">#{fstype}</span></span>
<span class="badge #{cls}">#{pct}%</span>
<span class="badge #{space_cls}">#{pct}%</span>
</div>
<div style="display:flex;justify-content:space-between;align-items:center;margin-top:0.5rem;margin-bottom:0.3rem;">
<span style="font-size:0.72rem;color:#64748b;font-weight:600;">#{source}</span>
<span class="subitem-value #{cls}">#{used_h} / #{size_h}</span>
<span class="subitem-value #{space_cls}">#{used_h} / #{size_h}</span>
</div>
<div class="bar-track" style="height:6px;"><div class="bar-fill #{cls}" style="width:#{pct}%"></div></div>
<div class="bar-track" style="height:6px;"><div class="bar-fill #{space_cls}" style="width:#{pct}%"></div></div>
#{stats_block}
</div>
HTML
end