tools/checkmk-swissknife
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Truncate long hostnames in monitoring view Host column

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Hostnames longer than 32 characters are now truncated with an ellipsis
in view.py tables, with the full name shown as a tooltip on hover. The
copy buttons in the Extra column keep copying the full, untruncated
hostname regardless of the displayed text.
This commit is contained in:
Luigi D'Acunto 2026-07-29 17:27:04 +02:00
parent 95f8a899a7
commit 45d6187150
3 changed files with 24 additions and 1 deletions
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18
user_script/checkmk_swissknife.user.js
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@ -1,7 +1,7 @@
// ==UserScript==
// @name Checkmk SwissKnife
// @namespace https://luigidacunto.com/
// @version 2.16.1
// @version 2.16.2
// @checkmk 2.3.x - 2.4.x
// @description Collection of UI improvements for Checkmk WATO. Each fix or enhancement is added here as an independent feature.
// @author Luigi D'Acunto
@ -821,8 +821,16 @@
// In view.py pages (monitoring views), adds a small button next to each
// hostname in the Host column to directly open the host's Service Discovery
// page in a new tab.
//
// The hostname shown in the Host column link is truncated to
// HOST_DISPLAY_MAX_LEN characters (with a title tooltip holding the full
// name) when it exceeds the threshold. The copy buttons (Extra column)
// always use `hostname`, taken from the `host` href parameter, never the
// truncated text.
// =========================================================================
const HOST_DISPLAY_MAX_LEN = 32; // ~15 char typical hostname + ".ad.aruba.it" + margin
function addInventoryButtons(doc) {
if (doc.body.dataset.cmkInventoryBtns === '1') return;
@ -931,6 +939,14 @@
const h = new URLSearchParams(a.getAttribute('href').split('?')[1] || '').get('host');
if (h) {
const hostname = h, shortname = h.split('.')[0];
// Truncate the displayed name (copy buttons below always use the full `hostname`/`shortname`)
const displayName = a.textContent.trim();
if (displayName.length > HOST_DISPLAY_MAX_LEN) {
a.title = displayName;
a.textContent = displayName.slice(0, HOST_DISPLAY_MAX_LEN - 1) + '…';
}
const group = doc.createElement('span');
group.className = 'cmk-sk-btn-group';