bvandeusenandClaude Opus 5.5
1ba4784fa6
On 2026-10-18 an update on VDNT-Docker02 restarted the Docker daemon six seconds in, before the drain that came only with the reboot, and every container on the node stopped. Docker's own packages restart the daemon from their install scripts; needrestart's list-only mode doesn't stop that. - The helper gains a `check` action (agent 1.24.0): a dry run of the update for each package manager, whether Docker is among it, and the running containers outside the swarm with their restart policies. - A swarm node is drained before an update that upgrades Docker, else only before a reboot, and at most once a job. - After a drain the job settles 5 minutes before the update or reboot. - Once the work is over, the containers that ran outside the swarm must be seen running again within 10 minutes, or the job fails naming them. - An older agent gets no check and its job runs as before. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
170 lines
8.9 KiB
Python
170 lines
8.9 KiB
Python
# plugins/host_agent/models.py
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from __future__ import annotations
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import uuid
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from datetime import datetime, timezone
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from sqlalchemy import JSON, Boolean, Column, String, DateTime, Float, ForeignKey, Integer, Text
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from steward.models.base import Base
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def _uuid() -> str:
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return str(uuid.uuid4())
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def _utcnow() -> datetime:
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return datetime.now(timezone.utc)
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class HostAgentRegistration(Base):
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__tablename__ = "host_agent_registrations"
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id = Column(String(36), primary_key=True, default=_uuid)
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host_id = Column(String(36), ForeignKey("hosts.id", ondelete="CASCADE"),
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unique=True, nullable=False)
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token_hash = Column(String(64), nullable=False, unique=True, index=True)
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token_created_at = Column(DateTime(timezone=True), nullable=False, default=_utcnow)
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agent_version = Column(String(32), nullable=True)
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kernel = Column(String(128), nullable=True)
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distro = Column(String(128), nullable=True)
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arch = Column(String(32), nullable=True)
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# Agent-reported primary IP. 45 chars = max textual IPv6 (no zone suffix).
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host_ip = Column(String(45), nullable=True)
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last_seen_at = Column(DateTime(timezone=True), nullable=True)
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# How far this host's clock is from Steward's, in seconds, positive when
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# the host is ahead, measured from the agent's sent_at on the newest post;
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# and when that was. None until an agent that stamps its posts reports.
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clock_offset_s = Column(Float, nullable=True)
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clock_checked_at = Column(DateTime(timezone=True), nullable=True)
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# What the package manager has waiting, from the agent's hourly check
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# (agent ≥ 1.16.0, #5765). updates_security is None when the manager
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# can't say; updates_error is why the last check failed.
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updates_manager = Column(String(8), nullable=True)
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updates_pending = Column(Integer, nullable=True)
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updates_security = Column(Integer, nullable=True)
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updates_checked_at = Column(DateTime(timezone=True), nullable=True)
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updates_error = Column(String(200), nullable=True)
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# Whether the host needs a reboot (None: it can't say), since when, and
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# the packages that asked for it, comma-separated.
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reboot_required = Column(Boolean, nullable=True)
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reboot_required_since = Column(DateTime(timezone=True), nullable=True)
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reboot_packages = Column(Text, nullable=True)
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# Whether the host has the root maintenance helper (steward-maint.path and
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# its request directory) that updates and reboots go through (#5766); None
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# until an agent that says reports.
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maint_helper = Column(Boolean, nullable=True)
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# The host's newest drive-health report, as the root helper read it with
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# smartctl (agent ≥ 1.20.0, #5789): {"checked_at", "smartctl", "drives"} or
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# {"error"}. drives.py judges it; the figures are also metrics.
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drive_health = Column(JSON, nullable=True)
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drive_health_at = Column(DateTime(timezone=True), nullable=True)
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created_at = Column(DateTime(timezone=True), nullable=False, default=_utcnow)
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updated_at = Column(DateTime(timezone=True), nullable=False,
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default=_utcnow, onupdate=_utcnow)
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class HostDowntime(Base):
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"""A span a host's agent was away, and what the agent said it was (#5756).
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kind is "reboot" (the host went down and came back), "agent_stop" (the
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agent stopped; the host stayed up), "unclean" (the host came back from a
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boot nobody announced: power loss or a crash) or "lost_contact" (the agent
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ran but couldn't reach Steward). ended_at is None while it is going on.
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"""
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__tablename__ = "host_downtime"
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id = Column(String(36), primary_key=True, default=_uuid)
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host_id = Column(String(36), ForeignKey("hosts.id", ondelete="CASCADE"),
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nullable=False, index=True)
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kind = Column(String(16), nullable=False)
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started_at = Column(DateTime(timezone=True), nullable=False)
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ended_at = Column(DateTime(timezone=True), nullable=True)
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created_at = Column(DateTime(timezone=True), nullable=False, default=_utcnow)
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class HostMaintenanceJob(Base):
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"""One host's update, and its reboot when the update needs one (#5767).
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Steward keeps the job here and the host's agent carries out each step
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through its root helper; maintenance.py has the states and transitions.
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step_id is the helper request id of the current step, and step_seen says a
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result for it has arrived, so it stops being handed out. node_id and
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drain_host_id are set when the host is a swarm node: the node to drain and
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the manager whose agent drains it.
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"""
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__tablename__ = "host_maintenance_jobs"
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id = Column(String(36), primary_key=True, default=_uuid)
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host_id = Column(String(36), ForeignKey("hosts.id", ondelete="CASCADE"),
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nullable=False, index=True)
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state = Column(String(16), nullable=False, default="queued", index=True)
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state_at = Column(DateTime(timezone=True), nullable=True)
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reboot_policy = Column(String(16), nullable=False, default="if_required")
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step_id = Column(String(64), nullable=True, index=True)
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step_seen = Column(Boolean, nullable=False, default=False)
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node_id = Column(String(64), nullable=True)
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drain_host_id = Column(String(36), ForeignKey("hosts.id", ondelete="SET NULL"), nullable=True)
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packages = Column(Integer, nullable=True)
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reboot_needed = Column(Boolean, nullable=True)
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back_at = Column(DateTime(timezone=True), nullable=True)
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detail = Column(Text, nullable=True)
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window_id = Column(String(36), ForeignKey("maintenance_windows.id", ondelete="SET NULL"),
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nullable=True)
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created_by = Column(String(36), ForeignKey("users.id", ondelete="SET NULL"), nullable=True)
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created_at = Column(DateTime(timezone=True), nullable=False, default=_utcnow)
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finished_at = Column(DateTime(timezone=True), nullable=True)
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# The cadence run this job belongs to (#5768); None for Update now.
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run_id = Column(String(36), ForeignKey("host_maintenance_runs.id", ondelete="SET NULL"),
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nullable=True, index=True)
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# What the check said the update would change (#6098): whether it
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# upgrades Docker, and {pending, docker_packages, containers} with the
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# containers then running outside the swarm. drained_at is when the job's
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# drain finished, before the update or before the reboot.
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docker_update = Column(Boolean, nullable=True)
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checked = Column(JSON, nullable=True)
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drained_at = Column(DateTime(timezone=True), nullable=True)
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class HostMaintenancePlan(Base):
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"""A group's maintenance cadence (#5768): every week on `weekday` at
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`at_time` in `time_zone`, its hosts are updated one at a time, each
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rebooting per `reboot_policy`. No host is started after `window_minutes`
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from the run's start. last_slot_at is the last scheduled slot that fired;
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Run now leaves it alone, so the schedule keeps its time."""
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__tablename__ = "host_maintenance_plans"
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id = Column(String(36), primary_key=True, default=_uuid)
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name = Column(String(128), nullable=False)
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group_id = Column(String(36), ForeignKey("ansible_groups.id", ondelete="CASCADE"),
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nullable=False)
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weekday = Column(Integer, nullable=False) # 0 = Monday
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at_time = Column(String(5), nullable=False) # "HH:MM"
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time_zone = Column(String(64), nullable=False, default="UTC")
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window_minutes = Column(Integer, nullable=False, default=240)
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reboot_policy = Column(String(16), nullable=False, default="if_required")
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enabled = Column(Boolean, nullable=False, default=True)
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last_slot_at = Column(DateTime(timezone=True), nullable=True)
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created_by = Column(String(36), ForeignKey("users.id", ondelete="SET NULL"), nullable=True)
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created_at = Column(DateTime(timezone=True), nullable=False, default=_utcnow)
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class HostMaintenanceRun(Base):
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"""One run of a plan: its hosts in order, one at a time (#5768).
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host_ids is the order fixed at the start (JSON list); position is the host
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being worked on; skipped is [{"host_id", "reason"}] for hosts the run
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passed over. settle_since is when the current host's job finished and the
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run began waiting for the host to be back in service."""
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__tablename__ = "host_maintenance_runs"
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id = Column(String(36), primary_key=True, default=_uuid)
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plan_id = Column(String(36), ForeignKey("host_maintenance_plans.id", ondelete="CASCADE"),
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nullable=False, index=True)
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state = Column(String(16), nullable=False, default="running", index=True)
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host_ids = Column(Text, nullable=False, default="[]")
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position = Column(Integer, nullable=False, default=0)
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skipped = Column(Text, nullable=False, default="[]")
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settle_since = Column(DateTime(timezone=True), nullable=True)
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detail = Column(Text, nullable=True)
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manual = Column(Boolean, nullable=False, default=False)
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started_at = Column(DateTime(timezone=True), nullable=False, default=_utcnow)
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finished_at = Column(DateTime(timezone=True), nullable=True)
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