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Only update sysctl settings if needed

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If running in a constrained environment (e.g. an incus / systemd container), setting sysctl limits is constrained, this tweak just checks existing settings and if large enough continues instead of applying
This commit is contained in:
Adon Metcalfe
2025-04-26 21:59:21 +08:00
committed by missytake
parent 09ff56e5b9
commit 2b4e18d16f
1 changed files with 5 additions and 0 deletions
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5
cmdeploy/src/cmdeploy/__init__.py
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@@ -13,6 +13,7 @@ from chatmaild.config import Config, read_config
from pyinfra import facts, host from pyinfra import facts, host
from pyinfra.api import FactBase from pyinfra.api import FactBase
from pyinfra.facts.files import File from pyinfra.facts.files import File
from pyinfra.facts.server import Sysctl
from pyinfra.facts.systemd import SystemdEnabled from pyinfra.facts.systemd import SystemdEnabled
from pyinfra.operations import apt, files, pip, server, systemd from pyinfra.operations import apt, files, pip, server, systemd
@@ -363,6 +364,10 @@ def _configure_dovecot(config: Config, debug: bool = False) -> bool:
# it is recommended to set the following inotify limits # it is recommended to set the following inotify limits
for name in ("max_user_instances", "max_user_watches"): for name in ("max_user_instances", "max_user_watches"):
key = f"fs.inotify.{name}" key = f"fs.inotify.{name}"
if host.get_fact(Sysctl)[key] > 65535:
# Skip updating limits if already sufficient
# (enables running in incus containers where sysctl readonly)
continue
server.sysctl( server.sysctl(
name=f"Change {key}", name=f"Change {key}",
key=key, key=key,