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kevinveenbirkenbachandClaude Opus 5.5
a3cb439a68
The pre-flight stopped every deploy on a filesystem above SIZE_PERCENT_MAXIMUM_DISK_USAGE, which blocked a 1.8 TB workstation at 99 % with 30 GB free while a 145 GB runner was fine. A filesystem now fails only when it is above the percentage AND offers less than SIZE_GB_MINIMUM_DISK_FREE (20 GB): disk_usage_errors reads df's available column, the preflight_disk_usage filter passes the floor, and disk.yml runs df -P -k so the block unit stays KiB even under POSIXLY_CORRECT. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
84 lines
3.0 KiB
Python
84 lines
3.0 KiB
Python
import unittest
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from utils.preflight.host import disk_usage_errors
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HEADER = "Filesystem 1024-blocks Used Available Capacity Mounted on"
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FLOOR_GB = 20
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KIB_AT_FLOOR = FLOOR_GB * 10**9 // 1024
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def _df(*rows):
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return "\n".join([HEADER, *rows]) + "\n"
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class TestDiskUsageErrors(unittest.TestCase):
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def test_filesystems_at_or_below_the_percentage_pass(self):
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output = _df(
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"/dev/sda1 100 90 10 90% /",
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"/dev/sdb1 100 12 88 12% /var/lib/docker",
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)
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self.assertEqual(
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disk_usage_errors(["/", "/var/lib/docker"], output, 90, FLOOR_GB),
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[],
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)
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def test_a_full_filesystem_short_of_the_floor_names_path_mount_usage_and_room(self):
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output = _df(
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"/dev/sda1 100 50 50 50% /",
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"/dev/sda1 100 91 9 91% /srv/docker data",
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)
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self.assertEqual(
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disk_usage_errors(["/", "/srv/docker data/root"], output, 90, FLOOR_GB),
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[
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(
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"/srv/docker data/root lies on /srv/docker data, which is 91 % full "
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"with 0.0 GB free (limits 90 % and 20 GB)"
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)
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],
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)
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def test_a_big_disk_above_the_percentage_with_room_left_passes(self):
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output = _df("/dev/mapper/root 1900000000 1870000000 30000000 99% /")
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self.assertEqual(disk_usage_errors(["/"], output, 90, FLOOR_GB), [])
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def test_room_exactly_at_the_floor_passes(self):
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output = _df(f"/dev/mapper/root 1900000000 1880000000 {KIB_AT_FLOOR} 99% /")
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self.assertEqual(disk_usage_errors(["/"], output, 90, FLOOR_GB), [])
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def test_room_just_below_the_floor_fails(self):
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output = _df(
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f"/dev/mapper/root 1900000000 1880000000 {KIB_AT_FLOOR - 1} 99% /"
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)
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self.assertEqual(len(disk_usage_errors(["/"], output, 90, FLOOR_GB)), 1)
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def test_a_small_disk_below_the_percentage_passes_with_little_room(self):
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output = _df("/dev/sda1 2000000 1000000 1000000 50% /")
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self.assertEqual(disk_usage_errors(["/"], output, 90, FLOOR_GB), [])
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def test_every_full_path_is_reported(self):
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output = _df(
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"overlay 100 95 5 95% /",
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"overlay 100 95 5 95% /",
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)
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self.assertEqual(
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len(disk_usage_errors(["/", "/var/lib/docker"], output, 90, FLOOR_GB)), 2
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)
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def test_a_row_count_mismatch_is_rejected(self):
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with self.assertRaises(ValueError):
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disk_usage_errors(
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["/", "/var/lib/docker"], _df("/dev/sda1 1 1 0 99% /"), 90, FLOOR_GB
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)
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def test_a_row_without_a_percentage_is_rejected(self):
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with self.assertRaises(ValueError):
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disk_usage_errors(["/"], _df("/dev/sda1 1 1 0 - /"), 90, FLOOR_GB)
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def test_a_row_without_an_available_count_is_rejected(self):
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with self.assertRaises(ValueError):
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disk_usage_errors(["/"], _df("/dev/sda1 1 1 - 99% /"), 90, FLOOR_GB)
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if __name__ == "__main__":
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unittest.main()
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