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Merged
akuzminsky merged 2 commits into from
Feb 9, 2026
Merged

Cap swap size to prevent filling root filesystem (development) #246

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Cap swap size to prevent filling root filesystem (development)
akuzminsky Feb 9, 2026
b432f4b
Merge branch 'main' into cap-swap-size-development
infrahouse8 Feb 9, 2026
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18 changes: 18 additions & 0 deletions debian/changelog
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Original file line number Diff line number Diff line change
@@ -1,3 +1,21 @@
puppet-code (0.1.0-1build283) noble; urgency=medium

* commit event. see changes history in git log

-- root <packager@infrahouse.com> Mon, 09 Feb 2026 02:34:55 +0000

puppet-code (0.1.0-1build282) noble; urgency=medium

* commit event. see changes history in git log

-- root <packager@infrahouse.com> Mon, 09 Feb 2026 02:34:37 +0000

puppet-code (0.1.0-1build281) noble; urgency=medium

* commit event. see changes history in git log

-- root <packager@infrahouse.com> Mon, 09 Feb 2026 02:34:09 +0000

puppet-code (0.1.0-1build280) noble; urgency=medium

* commit event. see changes history in git log
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11 changes: 10 additions & 1 deletion environments/development/modules/profile/manifests/swap.pp
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@@ -1,7 +1,16 @@
# @summary: Create swap from a file
# Swap size is capped to avoid filling the root filesystem on instances
# with large RAM and small root volumes (e.g. c5.metal with 192 GB RAM
# and a 30 GB root volume). The size is the minimum of:
# - 2x total RAM (traditional rule, appropriate for small instances)
# - 8 GB hard cap
# - 25% of available disk space on /
class profile::swap () {
$total_ram = $facts['memory']['system']['total_bytes']
$swap_size = $total_ram * 2
$eight_gb = 8 * 1024 * 1024 * 1024
$disk_available = $facts['mountpoints']['/']['available_bytes']
$disk_cap = $disk_available / 4
$swap_size = min($total_ram * 2, $eight_gb, $disk_cap)
$swap_file = '/swapfile'

exec {'create_swap_file':
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