mirror of
https://github.com/jhd3197/ServerKit.git
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Juan DenisandClaude Fable 5
e810016005
~60 call sites across 24 model files now ride _json_read with each site's exact default preserved; 34 classes newly adopt the mixin (registry contract test expanded to 36). Reverses the old 'bare sites stay raising' ruling: a corrupt row degrades to its default instead of 500ing every serializing endpoint (docstring updated). Ratchet: json.loads( appears only in json_column_mixin.py. Known pre-existing: test_host_inventory enumerate_filesystems failures on this machine (verified via clean-tree stash rerun). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
83 lines
3.3 KiB
Python
83 lines
3.3 KiB
Python
"""The panel host's own hardware, recorded so a change can be noticed.
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Every other spec reader in the codebase answers "what is it now?" — psutil is
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consulted live and the answer is thrown away. That is fine until the operator
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resizes the box, at which point the panel reads the new numbers, has nothing to
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compare them against, and says nothing.
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The subtle part is that a resize requires a power-off, so the process (and any
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in-memory cache) dies with it. The baseline has to outlive a reboot or it is
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not a baseline, which is why this is a table and not a module-level dict.
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"""
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import json
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from datetime import datetime
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from app import db
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from app.models.json_column_mixin import JsonColumnMixin
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class HostSnapshot(JsonColumnMixin, db.Model):
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"""One reading of the panel host's specs and filesystems."""
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__tablename__ = 'host_snapshots'
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id = db.Column(db.Integer, primary_key=True)
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captured_at = db.Column(db.DateTime, default=datetime.utcnow, index=True)
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# /proc/sys/kernel/random/boot_id — a fresh value every boot. Lets a change
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# that happened while the box was off (a resize) be told apart from one that
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# happened underneath a running panel (a volume attached hot).
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boot_id = db.Column(db.String(64), nullable=True, index=True)
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cpu_cores = db.Column(db.Integer, nullable=True)
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ram_bytes = db.Column(db.BigInteger, nullable=True)
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swap_bytes = db.Column(db.BigInteger, nullable=True)
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container = db.Column(db.String(32), nullable=True) # lxc | openvz | docker | None
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# [{device, mountpoint, fstype, total, used, free, percent,
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# in_fstab, is_data_volume}, ...]
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filesystems_json = db.Column(db.Text, nullable=True)
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# Deltas against the previous snapshot: [{field, kind, from, to, summary}].
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# NULL on the first ever capture — there was nothing to compare against,
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# which is different from "compared and found nothing".
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changes_json = db.Column(db.Text, nullable=True)
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# Advisories active at capture time, so the next capture can notify only on
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# a state transition instead of nagging every boot.
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advisories_json = db.Column(db.Text, nullable=True)
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def get_filesystems(self):
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return self._json_read('filesystems_json', [])
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def set_filesystems(self, value):
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self.filesystems_json = json.dumps(value) if value else None
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def get_changes(self):
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"""Deltas vs the previous snapshot, or None if this is the first."""
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if self.changes_json is None:
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return None
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return self._json_read('changes_json', [])
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def set_changes(self, value):
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self.changes_json = json.dumps(value) if value is not None else None
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def get_advisories(self):
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return self._json_read('advisories_json', [])
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def set_advisories(self, value):
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self.advisories_json = json.dumps(value) if value else None
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def to_dict(self):
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return {
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'id': self.id,
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'captured_at': self.captured_at.isoformat() if self.captured_at else None,
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'boot_id': self.boot_id,
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'cpu_cores': self.cpu_cores,
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'ram_bytes': self.ram_bytes,
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'swap_bytes': self.swap_bytes,
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'container': self.container,
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'filesystems': self.get_filesystems(),
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'changes': self.get_changes(),
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'advisories': self.get_advisories(),
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}
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