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[WIP] Add RebootRequired fact for detecting system reboot needs #1310

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[WIP] Add RebootRequired fact for detecting system reboot needs #1310

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ac84b59
Add RebootRequired fact for detecting system reboot needs
wowi42 Mar 12, 2025
c5fd309
Add test cases for RebootRequired fact detection
wowi42 Mar 12, 2025
7cfa239
Simplify LinuxDistribution fact release metadata parsing
wowi42 Mar 12, 2025
f114972
Remove useless change
wowi42 Mar 12, 2025
5b5e618
Merge branch '3.x' into reboot_required
wowi42 Apr 8, 2025
83377a1
Merge branch '3.x' into reboot_required
wowi42 Apr 24, 2025
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49 changes: 49 additions & 0 deletions pyinfra/facts/server.py
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Original file line number Diff line number Diff line change
Expand Up @@ -843,3 +843,52 @@ def process(self, output):
)

return limits


class RebootRequired(FactBase[bool]):
"""
Returns a boolean indicating whether the system requires a reboot.

On Linux systems:
- Checks /var/run/reboot-required and /var/run/reboot-required.pkgs
- On Alpine Linux, compares installed kernel with running kernel

On FreeBSD systems:
- Compares running kernel version with installed kernel version
"""

def command(self) -> str:
return """
# Get OS type
OS_TYPE=$(uname -s)
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Ah yes, the problem of facts being unable to call each other. Unfortunately I think this is the best way we can currently do this.


if [ "$OS_TYPE" = "Linux" ]; then
# Check if it's Alpine Linux
if [ -f /etc/alpine-release ]; then
RUNNING_KERNEL=$(uname -r)
INSTALLED_KERNEL=$(ls -1 /lib/modules | sort -V | tail -n1)
if [ "$RUNNING_KERNEL" != "$INSTALLED_KERNEL" ]; then
echo "reboot_required"
exit 0
fi
else
# Check standard Linux reboot required files
if [ -f /var/run/reboot-required ] || [ -f /var/run/reboot-required.pkgs ]; then
echo "reboot_required"
exit 0
fi
fi
elif [ "$OS_TYPE" = "FreeBSD" ]; then
RUNNING_VERSION=$(freebsd-version -r)
INSTALLED_VERSION=$(freebsd-version -k)
if [ "$RUNNING_VERSION" != "$INSTALLED_VERSION" ]; then
echo "reboot_required"
exit 0
fi
fi

echo "no_reboot_required"
"""

def process(self, output) -> bool:
return list(output)[0].strip() == "reboot_required"
13 changes: 13 additions & 0 deletions tests/facts/server.RebootRequired/alpine_reboot_required.json
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@@ -0,0 +1,13 @@
{
"command": "\n# Get OS type\nOS_TYPE=$(uname -s)\n\nif [ \"$OS_TYPE\" = \"Linux\" ]; then\n # Check if it's Alpine Linux\n if [ -f /etc/alpine-release ]; then\n RUNNING_KERNEL=$(uname -r)\n INSTALLED_KERNEL=$(ls -1 /lib/modules | sort -V | tail -n1)\n if [ \"$RUNNING_KERNEL\" != \"$INSTALLED_KERNEL\" ]; then\n echo \"reboot_required\"\n exit 0\n fi\n else\n # Check standard Linux reboot required files\n if [ -f /var/run/reboot-required ] || [ -f /var/run/reboot-required.pkgs ]; then\n echo \"reboot_required\"\n exit 0\n fi\n fi\nelif [ \"$OS_TYPE\" = \"FreeBSD\" ]; then\n RUNNING_VERSION=$(freebsd-version -r)\n INSTALLED_VERSION=$(freebsd-version -k)\n if [ \"$RUNNING_VERSION\" != \"$INSTALLED_VERSION\" ]; then\n echo \"reboot_required\"\n exit 0\n fi\nfi\n\necho \"no_reboot_required\"\n",
"output": [
"reboot_required"
],
"fact": true,
"setup": [
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I don't think this key does anything?

["touch", "/etc/alpine-release"],
["uname", "-r", "5.15.0-1-alpine"],
["mkdir", "-p", "/lib/modules"],
["touch", "/lib/modules/5.15.0-2-alpine"]
]
}
12 changes: 12 additions & 0 deletions tests/facts/server.RebootRequired/freebsd_reboot_required.json
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{
"command": "\n# Get OS type\nOS_TYPE=$(uname -s)\n\nif [ \"$OS_TYPE\" = \"Linux\" ]; then\n # Check if it's Alpine Linux\n if [ -f /etc/alpine-release ]; then\n RUNNING_KERNEL=$(uname -r)\n INSTALLED_KERNEL=$(ls -1 /lib/modules | sort -V | tail -n1)\n if [ \"$RUNNING_KERNEL\" != \"$INSTALLED_KERNEL\" ]; then\n echo \"reboot_required\"\n exit 0\n fi\n else\n # Check standard Linux reboot required files\n if [ -f /var/run/reboot-required ] || [ -f /var/run/reboot-required.pkgs ]; then\n echo \"reboot_required\"\n exit 0\n fi\n fi\nelif [ \"$OS_TYPE\" = \"FreeBSD\" ]; then\n RUNNING_VERSION=$(freebsd-version -r)\n INSTALLED_VERSION=$(freebsd-version -k)\n if [ \"$RUNNING_VERSION\" != \"$INSTALLED_VERSION\" ]; then\n echo \"reboot_required\"\n exit 0\n fi\nfi\n\necho \"no_reboot_required\"\n",
"output": [
"reboot_required"
],
"fact": true,
"setup": [
["uname", "-s", "FreeBSD"],
["freebsd-version", "-r", "13.2-RELEASE"],
["freebsd-version", "-k", "13.2-RELEASE-p1"]
]
}
7 changes: 7 additions & 0 deletions tests/facts/server.RebootRequired/linux_no_reboot.json
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{
"command": "\n# Get OS type\nOS_TYPE=$(uname -s)\n\nif [ \"$OS_TYPE\" = \"Linux\" ]; then\n # Check if it's Alpine Linux\n if [ -f /etc/alpine-release ]; then\n RUNNING_KERNEL=$(uname -r)\n INSTALLED_KERNEL=$(ls -1 /lib/modules | sort -V | tail -n1)\n if [ \"$RUNNING_KERNEL\" != \"$INSTALLED_KERNEL\" ]; then\n echo \"reboot_required\"\n exit 0\n fi\n else\n # Check standard Linux reboot required files\n if [ -f /var/run/reboot-required ] || [ -f /var/run/reboot-required.pkgs ]; then\n echo \"reboot_required\"\n exit 0\n fi\n fi\nelif [ \"$OS_TYPE\" = \"FreeBSD\" ]; then\n RUNNING_VERSION=$(freebsd-version -r)\n INSTALLED_VERSION=$(freebsd-version -k)\n if [ \"$RUNNING_VERSION\" != \"$INSTALLED_VERSION\" ]; then\n echo \"reboot_required\"\n exit 0\n fi\nfi\n\necho \"no_reboot_required\"\n",
"output": [
"no_reboot_required"
],
"fact": false
}
10 changes: 10 additions & 0 deletions tests/facts/server.RebootRequired/linux_reboot_required.json
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@@ -0,0 +1,10 @@
{
"command": "\n# Get OS type\nOS_TYPE=$(uname -s)\n\nif [ \"$OS_TYPE\" = \"Linux\" ]; then\n # Check if it's Alpine Linux\n if [ -f /etc/alpine-release ]; then\n RUNNING_KERNEL=$(uname -r)\n INSTALLED_KERNEL=$(ls -1 /lib/modules | sort -V | tail -n1)\n if [ \"$RUNNING_KERNEL\" != \"$INSTALLED_KERNEL\" ]; then\n echo \"reboot_required\"\n exit 0\n fi\n else\n # Check standard Linux reboot required files\n if [ -f /var/run/reboot-required ] || [ -f /var/run/reboot-required.pkgs ]; then\n echo \"reboot_required\"\n exit 0\n fi\n fi\nelif [ \"$OS_TYPE\" = \"FreeBSD\" ]; then\n RUNNING_VERSION=$(freebsd-version -r)\n INSTALLED_VERSION=$(freebsd-version -k)\n if [ \"$RUNNING_VERSION\" != \"$INSTALLED_VERSION\" ]; then\n echo \"reboot_required\"\n exit 0\n fi\nfi\n\necho \"no_reboot_required\"\n",
"output": [
"reboot_required"
],
"fact": true,
"setup": [
["touch", "/var/run/reboot-required"]
]
}
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