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Juan Denis
6296887bad
Comments, docstrings and a few strings cited plan numbers ("plan 29
#9", "plan 86 §B2") from a git-ignored folder, so they pointed at
nothing; one reached users in a bottleneck hint. Code and frontend
strings are unchanged apart from those citations (checked by AST and
token comparison). A vhost still carrying the old asset comment reads
as undrifted, and a guard test keeps new citations out.
85 lines
2.8 KiB
Python
85 lines
2.8 KiB
Python
"""Size-aware storage defaults.
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A 25 GB VPS and a 500 GB server should not keep the same 30 days of
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telemetry: on the small box ServerKit's own history competes with the apps
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for the disk. This picks retention and log-size defaults from the size of the
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filesystem the panel lives on.
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These are defaults, never limits: every value is an ordinary setting the
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operator can change, and nothing here refuses to run on small hardware.
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"""
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import logging
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import os
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import shutil
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logger = logging.getLogger(__name__)
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SMALL_DISK_BYTES = 50 * 1024 ** 3
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# Values per profile. ``standard`` is what every install shipped with before
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# profiles existed, so an existing row still holding it was never chosen.
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PROFILES = {
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'small': {
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'telemetry.retention_days': 7,
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'jobs.retention_days': 7,
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'history.retention_days': 30,
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'storage.docker_log_max_size': '10m',
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},
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'standard': {
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'telemetry.retention_days': 30,
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'jobs.retention_days': 14,
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'history.retention_days': 90,
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'storage.docker_log_max_size': '50m',
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},
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}
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# Marks that the one-time adjustment below already ran on this install.
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APPLIED_SETTING = 'storage.size_profile_applied'
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def _probe_path():
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from app.paths import SERVERKIT_DIR
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return SERVERKIT_DIR if os.path.isdir(SERVERKIT_DIR) else os.path.abspath(os.sep)
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def disk_total_bytes(path=None):
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try:
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return shutil.disk_usage(path or _probe_path()).total
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except OSError:
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return None
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def profile_name(total_bytes=None):
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"""``small`` below 50 GB, else ``standard``. An unreadable disk size falls
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back to ``standard`` — the defaults that were always there."""
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if total_bytes is None:
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total_bytes = disk_total_bytes()
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if total_bytes is not None and total_bytes < SMALL_DISK_BYTES:
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return 'small'
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return 'standard'
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def default_for(key, total_bytes=None):
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return PROFILES[profile_name(total_bytes)].get(key)
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def apply_to_existing(total_bytes=None):
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"""Once per install: on a small disk, move settings that still hold the
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old standard value to the small-disk value. A value the operator changed
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to anything else is left alone. Returns the keys that changed."""
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from app.services.settings_service import SettingsService
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if SettingsService.get(APPLIED_SETTING):
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return []
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changed = []
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if profile_name(total_bytes) == 'small':
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for key, value in PROFILES['small'].items():
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current = SettingsService.get(key)
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if current is None or str(current) == str(PROFILES['standard'][key]):
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SettingsService.set(key, value)
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changed.append(key)
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SettingsService.set(APPLIED_SETTING, True)
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if changed:
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logger.info('Small disk: set %s to the small-disk defaults', ', '.join(changed))
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return changed
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