Add per-status timeouts and tracking for probe status
i.e. this lets us keep track of when a probe becomes "high temp" and then later if it becomes "critical high temp" we can still know how long it's been high
This commit is contained in:
Lance Edgar
parent
8be64c0580
commit
19553edda6
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@ -0,0 +1,51 @@
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# -*- coding: utf-8; -*-
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"""add more timeouts
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Revision ID: b02c531caca5
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Revises: 5f2b87474433
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Create Date: 2018-10-19 13:51:54.422490
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"""
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from __future__ import unicode_literals, absolute_import
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# revision identifiers, used by Alembic.
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revision = 'b02c531caca5'
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down_revision = u'5f2b87474433'
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branch_labels = None
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depends_on = None
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from alembic import op
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import sqlalchemy as sa
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import rattail.db.types
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def upgrade():
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# probe
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op.add_column('probe', sa.Column('critical_max_started', sa.DateTime(), nullable=True))
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op.add_column('probe', sa.Column('critical_max_timeout', sa.Integer(), nullable=True))
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op.add_column('probe', sa.Column('critical_min_started', sa.DateTime(), nullable=True))
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op.add_column('probe', sa.Column('critical_min_timeout', sa.Integer(), nullable=True))
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op.add_column('probe', sa.Column('error_started', sa.DateTime(), nullable=True))
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op.add_column('probe', sa.Column('error_timeout', sa.Integer(), nullable=True))
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op.add_column('probe', sa.Column('good_max_started', sa.DateTime(), nullable=True))
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op.add_column('probe', sa.Column('good_max_timeout', sa.Integer(), nullable=True))
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op.add_column('probe', sa.Column('good_min_started', sa.DateTime(), nullable=True))
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op.add_column('probe', sa.Column('good_min_timeout', sa.Integer(), nullable=True))
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def downgrade():
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# probe
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op.drop_column('probe', 'good_min_timeout')
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op.drop_column('probe', 'good_min_started')
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op.drop_column('probe', 'good_max_timeout')
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op.drop_column('probe', 'good_max_started')
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op.drop_column('probe', 'error_timeout')
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op.drop_column('probe', 'error_started')
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op.drop_column('probe', 'critical_min_timeout')
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op.drop_column('probe', 'critical_min_started')
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op.drop_column('probe', 'critical_max_timeout')
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op.drop_column('probe', 'critical_max_started')
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@ -2,7 +2,7 @@
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################################################################################
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#
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# Rattail -- Retail Software Framework
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# Copyright © 2010-2017 Lance Edgar
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# Copyright © 2010-2018 Lance Edgar
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#
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# This file is part of Rattail.
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#
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@ -33,6 +33,7 @@ import sqlalchemy as sa
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from sqlalchemy import orm
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from sqlalchemy.ext.declarative import declarative_base
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from rattail import enum
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from rattail.db.model import uuid_column
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from rattail.db.model.core import ModelBase
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@ -130,11 +131,88 @@ class Probe(Base):
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device_path = sa.Column(sa.String(length=255), nullable=True)
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enabled = sa.Column(sa.Boolean(), nullable=False, default=True)
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good_temp_min = sa.Column(sa.Integer(), nullable=False)
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good_temp_max = sa.Column(sa.Integer(), nullable=False)
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critical_temp_min = sa.Column(sa.Integer(), nullable=False)
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critical_temp_max = sa.Column(sa.Integer(), nullable=False)
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critical_temp_max = sa.Column(sa.Integer(), nullable=False, doc="""
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Maximum high temperature; when a reading is greater than or equal to this
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value, the probe's status becomes "critical high temp".
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""")
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critical_max_started = sa.Column(sa.DateTime(), nullable=True, doc="""
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Timestamp when the probe readings started to indicate "critical high temp"
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status. This should be null unless the probe currently has that status.
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""")
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critical_max_timeout = sa.Column(sa.Integer(), nullable=True, doc="""
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Number of minutes the probe is allowed to have "critical high temp" status,
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before the first email alert is sent for that. If empty, there will be no
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delay and the first email will go out as soon as that status is reached.
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If set, should probably be a *low* number.
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""")
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good_temp_max = sa.Column(sa.Integer(), nullable=False, doc="""
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Maximum good temperature; when a reading is greater than or equal to this
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value, the probe's status becomes "high temp" (unless the reading also
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breaches the :attr:`critical_temp_max` threshold).
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""")
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good_max_timeout = sa.Column(sa.Integer(), nullable=True, doc="""
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Number of minutes the probe is allowed to have "high temp" status, before
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the first email alert is sent for that. This is typically meant to account
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for the length of the defrost cycle, so may be a rather large number.
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""")
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good_max_started = sa.Column(sa.DateTime(), nullable=True, doc="""
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Timestamp when the probe readings started to indicate "high temp" status.
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This should be null unless the probe currently has either "high temp" or
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"critical high temp" status.
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""")
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good_temp_min = sa.Column(sa.Integer(), nullable=False, doc="""
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Minimum good temperature; when a reading is less than or equal to this
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value, the probe's status becomes "low temp" (unless the reading also
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breaches the :attr:`critical_temp_min` threshold).
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""")
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good_min_timeout = sa.Column(sa.Integer(), nullable=True, doc="""
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Number of minutes the probe is allowed to have "low temp" status, before
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the first email alert is sent for that.
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""")
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good_min_started = sa.Column(sa.DateTime(), nullable=True, doc="""
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Timestamp when the probe readings started to indicate "low temp" status.
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This should be null unless the probe currently has either "low temp" or
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"critical low temp" status.
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""")
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critical_temp_min = sa.Column(sa.Integer(), nullable=False, doc="""
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Minimum low temperature; when a reading is less than or equal to this
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value, the probe's status becomes "critical low temp". If empty, there
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will be no delay and the first email will go out as soon as that status is
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reached.
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""")
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critical_min_started = sa.Column(sa.DateTime(), nullable=True, doc="""
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Timestamp when the probe readings started to indicate "critical low temp"
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status. This should be null unless the probe currently has that status.
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""")
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critical_min_timeout = sa.Column(sa.Integer(), nullable=True, doc="""
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Number of minutes the probe is allowed to have "critical low temp" status,
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before the first email alert is sent for that. If empty, there will be no
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delay and the first email will go out as soon as that status is reached.
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""")
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error_started = sa.Column(sa.DateTime(), nullable=True, doc="""
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Timestamp when the probe readings started to indicate "error" status. This
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should be null unless the probe currently has that status.
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""")
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error_timeout = sa.Column(sa.Integer(), nullable=True, doc="""
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Number of minutes the probe is allowed to have "error" status, before the
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first email alert is sent for that. If empty, there will be no delay and
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the first email will go out as soon as that status is reached.
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""")
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# TODO: deprecate / remove this
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therm_status_timeout = sa.Column(sa.Integer(), nullable=False, doc="""
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Number of minutes the temperature is allowed to be "high" before the first
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"high temp" email alert is sent. This is typically meant to account for
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@ -159,6 +237,90 @@ class Probe(Base):
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def __str__(self):
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return self.description
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def start_status(self, status, time):
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"""
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Update the "started" timestamp field for the given status. This is
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used to track e.g. when we cross the "high temp" threshold, as a
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separate event from when the "critical high temp" threshold is reached.
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Note that in addition to setting the appropriate timestamp field, this
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also will clear out other timestamp fields, according to the specific
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(new) status.
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"""
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if status in (enum.TEMPMON_PROBE_STATUS_CRITICAL_HIGH_TEMP,
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enum.TEMPMON_PROBE_STATUS_CRITICAL_TEMP):
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self.critical_max_started = time
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# note, we don't clear out "high temp" time
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self.good_min_started = None
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self.critical_min_started = None
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self.error_started = None
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elif status == enum.TEMPMON_PROBE_STATUS_HIGH_TEMP:
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self.critical_max_started = None
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self.good_max_started = time
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self.good_min_started = None
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self.critical_min_started = None
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self.error_started = None
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elif status == enum.TEMPMON_PROBE_STATUS_LOW_TEMP:
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self.critical_max_started = None
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self.good_max_started = None
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self.good_min_started = time
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self.critical_min_started = None
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self.error_started = None
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elif status == enum.TEMPMON_PROBE_STATUS_CRITICAL_LOW_TEMP:
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self.critical_max_started = None
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self.good_max_started = None
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# note, we don't clear out "low temp" time
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self.critical_min_started = time
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self.error_started = None
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elif status == enum.TEMPMON_PROBE_STATUS_ERROR:
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# note, we don't clear out any other status times
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self.error_started = time
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def status_started(self, status):
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"""
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Return the timestamp indicating when the given status started.
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"""
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if status in (enum.TEMPMON_PROBE_STATUS_CRITICAL_HIGH_TEMP,
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enum.TEMPMON_PROBE_STATUS_CRITICAL_TEMP):
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return self.critical_max_started
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elif status == enum.TEMPMON_PROBE_STATUS_HIGH_TEMP:
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return self.good_max_started
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elif status == enum.TEMPMON_PROBE_STATUS_LOW_TEMP:
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return self.good_min_started
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elif status == enum.TEMPMON_PROBE_STATUS_CRITICAL_LOW_TEMP:
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return self.critical_min_started
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elif status == enum.TEMPMON_PROBE_STATUS_ERROR:
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return self.error_started
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def timeout_for_status(self, status):
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"""
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Returns the timeout value for the given status. This is be the number
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of minutes by which we should delay the initial email for the status.
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"""
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if status in (enum.TEMPMON_PROBE_STATUS_CRITICAL_HIGH_TEMP,
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enum.TEMPMON_PROBE_STATUS_CRITICAL_TEMP):
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return self.critical_max_timeout
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elif status == enum.TEMPMON_PROBE_STATUS_HIGH_TEMP:
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return self.good_max_timeout or self.therm_status_timeout
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elif status == enum.TEMPMON_PROBE_STATUS_LOW_TEMP:
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return self.good_min_timeout or self.therm_status_timeout
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elif status == enum.TEMPMON_PROBE_STATUS_CRITICAL_LOW_TEMP:
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return self.critical_min_timeout
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elif status == enum.TEMPMON_PROBE_STATUS_ERROR:
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return self.error_timeout
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@six.python_2_unicode_compatible
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class Reading(Base):
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@ -54,6 +54,30 @@ class TempmonBase(object):
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}
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class tempmon_critical_high_temp(TempmonBase, Email):
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"""
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Sent when a tempmon probe takes a "critical high" temperature reading.
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"""
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default_subject = "CRITICAL HIGH Temperature"
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def sample_data(self, request):
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data = super(tempmon_critical_high_temp, self).sample_data(request)
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data['status'] = self.enum.TEMPMON_PROBE_STATUS[self.enum.TEMPMON_PROBE_STATUS_CRITICAL_HIGH_TEMP]
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return data
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class tempmon_critical_low_temp(TempmonBase, Email):
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"""
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Sent when a tempmon probe takes a "critical low" temperature reading.
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"""
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default_subject = "CRITICAL LOW Temperature"
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def sample_data(self, request):
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data = super(tempmon_critical_low_temp, self).sample_data(request)
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data['status'] = self.enum.TEMPMON_PROBE_STATUS[self.enum.TEMPMON_PROBE_STATUS_CRITICAL_LOW_TEMP]
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return data
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class tempmon_critical_temp(TempmonBase, Email):
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"""
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Sent when a tempmon probe takes a reading which is "critical" in either the
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@ -92,7 +116,7 @@ class tempmon_good_temp(TempmonBase, Email):
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Sent whenever a tempmon probe first takes a "good temp" reading, after
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having previously had some bad reading(s).
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"""
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default_subject = "Good temperature detected"
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default_subject = "OK Temperature"
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def sample_data(self, request):
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data = super(tempmon_good_temp, self).sample_data(request)
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@ -105,7 +129,7 @@ class tempmon_high_temp(TempmonBase, Email):
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Sent when a tempmon probe takes a reading which is above the "maximum good
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temp" range, but still below the "critically high temp" threshold.
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"""
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default_subject = "High temperature detected"
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default_subject = "HIGH Temperature"
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def sample_data(self, request):
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data = super(tempmon_high_temp, self).sample_data(request)
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@ -118,7 +142,7 @@ class tempmon_low_temp(TempmonBase, Email):
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Sent when a tempmon probe takes a reading which is below the "minimum good
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temp" range, but still above the "critically low temp" threshold.
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"""
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default_subject = "Low temperature detected"
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default_subject = "LOW Temperature"
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def sample_data(self, request):
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data = super(tempmon_low_temp, self).sample_data(request)
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@ -124,7 +124,7 @@ class TempmonServerDaemon(Daemon):
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cutoff = self.now - datetime.timedelta(seconds=delay + 60)
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online = False
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for probe in client.enabled_probes():
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if self.check_readings_for_probe(session, probe, cutoff) and not online:
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if self.check_readings_for_probe(session, probe, cutoff):
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online = True
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# if client was previously marked online, but we have no "new"
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@ -147,7 +147,6 @@ class TempmonServerDaemon(Daemon):
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'now': localtime(self.config, self.now, from_utc=True),
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})
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def check_readings_for_probe(self, session, probe, cutoff):
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"""
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Check readings for the given probe, within the time window defined by
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@ -161,18 +160,21 @@ class TempmonServerDaemon(Daemon):
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.first()
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if reading:
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# is reading below critical min, or above critical max?
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if (reading.degrees_f <= probe.critical_temp_min or
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reading.degrees_f >= probe.critical_temp_max):
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self.update_status(probe, self.enum.TEMPMON_PROBE_STATUS_CRITICAL_TEMP, reading)
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# is reading above critical max?
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if reading.degrees_f >= probe.critical_temp_max:
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self.update_status(probe, self.enum.TEMPMON_PROBE_STATUS_CRITICAL_HIGH_TEMP, reading)
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# is reading below "good" min?
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elif reading.degrees_f < probe.good_temp_min:
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# is reading above good max?
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elif reading.degrees_f >= probe.good_temp_max:
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self.update_status(probe, self.enum.TEMPMON_PROBE_STATUS_HIGH_TEMP, reading)
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# is reading below good min?
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elif reading.degrees_f <= probe.good_temp_min:
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self.update_status(probe, self.enum.TEMPMON_PROBE_STATUS_LOW_TEMP, reading)
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# is reading above "good" max?
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elif reading.degrees_f > probe.good_temp_max:
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self.update_status(probe, self.enum.TEMPMON_PROBE_STATUS_HIGH_TEMP, reading)
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# is reading below critical min?
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elif reading.degrees_f <= probe.critical_temp_min:
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self.update_status(probe, self.enum.TEMPMON_PROBE_STATUS_CRITICAL_LOW_TEMP, reading)
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else: # temp is good
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self.update_status(probe, self.enum.TEMPMON_PROBE_STATUS_GOOD_TEMP, reading)
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@ -196,13 +198,25 @@ class TempmonServerDaemon(Daemon):
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prev_alert_sent = probe.status_alert_sent
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if probe.status != status:
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probe.status = status
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probe.start_status(status, self.now)
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probe.status_changed = self.now
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probe.status_alert_sent = None
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# send email when things go back to normal, after being bad
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# send "high temp" email if previous status was critical, even if
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# we haven't been high for that long overall
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if (status == self.enum.TEMPMON_PROBE_STATUS_HIGH_TEMP
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and prev_status in (self.enum.TEMPMON_PROBE_STATUS_CRITICAL_HIGH_TEMP,
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self.enum.TEMPMON_PROBE_STATUS_CRITICAL_TEMP)
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and prev_alert_sent):
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send_email(self.config, 'tempmon_high_temp', data)
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probe.status_alert_sent = self.now
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return
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# send email when things go back to normal (i.e. from any other status)
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if status == self.enum.TEMPMON_PROBE_STATUS_GOOD_TEMP and prev_alert_sent:
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send_email(self.config, 'tempmon_good_temp', data)
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probe.status_alert_sent = self.now
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return
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# no (more) email if status is good
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if status == self.enum.TEMPMON_PROBE_STATUS_GOOD_TEMP:
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@ -215,19 +229,39 @@ class TempmonServerDaemon(Daemon):
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return
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# delay even the first email, until configured threshold is reached
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# unless we have a critical status
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if status != self.enum.TEMPMON_PROBE_STATUS_CRITICAL_TEMP:
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timeout = datetime.timedelta(minutes=probe.therm_status_timeout)
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if (self.now - probe.status_changed) <= timeout:
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timeout = probe.timeout_for_status(status) or 0
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timeout = datetime.timedelta(minutes=timeout)
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started = probe.status_started(status) or probe.status_changed
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if (self.now - started) <= timeout:
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return
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msgtypes = {
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self.enum.TEMPMON_PROBE_STATUS_CRITICAL_HIGH_TEMP : 'tempmon_critical_high_temp',
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self.enum.TEMPMON_PROBE_STATUS_HIGH_TEMP : 'tempmon_high_temp',
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self.enum.TEMPMON_PROBE_STATUS_LOW_TEMP : 'tempmon_low_temp',
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self.enum.TEMPMON_PROBE_STATUS_CRITICAL_LOW_TEMP : 'tempmon_critical_low_temp',
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self.enum.TEMPMON_PROBE_STATUS_ERROR : 'tempmon_error',
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}
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self.send_email(status, msgtypes[status], data)
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|
||||
# maybe send more emails if config said so
|
||||
for msgtype in self.extra_emails:
|
||||
self.send_email(status, msgtype, data)
|
||||
|
||||
probe.status_alert_sent = self.now
|
||||
|
||||
def send_email(self, status, template, data):
|
||||
probe = data['probe']
|
||||
started = probe.status_started(status) or probe.status_changed
|
||||
|
||||
# determine URL for probe, if possible
|
||||
url = self.config.get('tailbone', 'url.tempmon.probe', default='#')
|
||||
data['probe_url'] = url.format(uuid=probe.uuid)
|
||||
|
||||
since = localtime(self.config, probe.status_changed, from_utc=True)
|
||||
since = localtime(self.config, started, from_utc=True)
|
||||
data['status_since'] = since.strftime('%I:%M %p')
|
||||
data['status_since_delta'] = humanize.naturaltime(self.now - probe.status_changed)
|
||||
data['status_since_delta'] = humanize.naturaltime(self.now - started)
|
||||
|
||||
# fetch last 90 minutes of readings
|
||||
session = orm.object_session(probe)
|
||||
|
|
@ -241,20 +275,7 @@ class TempmonServerDaemon(Daemon):
|
|||
data['recent_readings'] = readings
|
||||
data['pretty_time'] = lambda dt: localtime(self.config, dt, from_utc=True).strftime('%Y-%m-%d %I:%M %p')
|
||||
|
||||
msgtypes = {
|
||||
self.enum.TEMPMON_PROBE_STATUS_LOW_TEMP : 'tempmon_low_temp',
|
||||
self.enum.TEMPMON_PROBE_STATUS_HIGH_TEMP : 'tempmon_high_temp',
|
||||
self.enum.TEMPMON_PROBE_STATUS_CRITICAL_TEMP : 'tempmon_critical_temp',
|
||||
self.enum.TEMPMON_PROBE_STATUS_ERROR : 'tempmon_error',
|
||||
}
|
||||
|
||||
send_email(self.config, msgtypes[status], data)
|
||||
|
||||
# maybe send more emails if config said so
|
||||
for msgtype in self.extra_emails:
|
||||
send_email(self.config, msgtype, data)
|
||||
|
||||
probe.status_alert_sent = self.now
|
||||
send_email(self.config, template, data)
|
||||
|
||||
|
||||
def make_daemon(config, pidfile=None):
|
||||
|
|
|
|||
|
|
@ -0,0 +1,25 @@
|
|||
## -*- coding: utf-8 -*-
|
||||
<html>
|
||||
<body>
|
||||
<p>
|
||||
<b>This is an alert from ${probe}!</b><br>
|
||||
The status of ${probe} is: ${status}.<br>
|
||||
The current temperature is: ${reading.degrees_f}.<br>
|
||||
The temperature should never be this high.
|
||||
Investigate Immediately!<br>
|
||||
</p>
|
||||
<p>
|
||||
Notes: <br>
|
||||
Frozen food that is above 40 degrees needs to be thrown away<br>
|
||||
if it remains at that temperature for two hours or more.<br>
|
||||
</p>
|
||||
<p>
|
||||
Check out <a href="http://www.fsis.usda.gov/wps/portal/fsis/topics/food-safety-education/get-answers/food-safety-fact-sheets/safe-food-handling/freezing-and-food-safety/CT_Index/!ut/p/a1/jZFRT8IwEIB_DY9dbw7J8G1ZYtiUTYJK2Qsp7NYt2dqlrU759RZ8UQJK-9LefV-ud6UFZbSQ_L0R3DZK8vZwLyYbWMDEn8aQ5lP_HpLsdZE_xDGEy1sHrP8AsuBK_8KK4D8_vaLAjZ7Hc0GLntuaNLJSlAm0hEszoDaUVUqVxPAK7Sep-M4SUyNalzjEyDFbc1m2jRQO1oh7d3J6SX6YlMXPm0SW-EFXtPj9KvDdTrJgOZ6lWQD5-BQ4M7Zv4PJcXOOiVdvjH60juQ1C16HGCjVq7027cG1tb-5GMIJhGDyhlGjR26nunFArYyk74fruhe0foxk0T90qNNEXiOIqAA!!/#16">this USDA link</a> for useful information
|
||||
</p>
|
||||
<p>
|
||||
This email will repeat every ${probe.status_alert_timeout} minutes until the issue<br>
|
||||
has been resolved.
|
||||
</p>
|
||||
<p>
|
||||
</body>
|
||||
</html>
|
||||
Loading…
Reference in a new issue