Giuliano Silvestro
445b7b60d4
Compares cloud_provisioned.spec (what we asked DO for) against the live cloud_resources row (what DO actually has). Any divergence becomes an operator-resolvable drift record. cloud_drift table: one row per drifted field. status open/accepted/ reverted/stale. Partial unique index keeps at most one OPEN drift per (resource, field); resolved rows are retained as history. ArcadiaCloud.Drift context: - detect_all/0 — sweeps every provisioned resource. Per field in spec, resolves the actual value (top-level schema field first, then attrs), compares with loose equality (stringified scalars; lists as sets so JSON round-trips don't false-positive). Mismatches upsert a cloud_drift row + emit a drift_detected event in the resource event log. - close_stale_drift — an open drift whose field no longer mismatches (fixed elsewhere) closes as "stale" on the next sweep. - accept_drift/2 — the live value becomes the new desired-state: parent cloud_provisioned.spec is updated, spec_version bumped, drift closed "accepted". Revert (mutating live infra back to spec) is intentionally NOT here — it needs a saga and lands with the droplet-resize work. DriftDetectionWorker — Oban cron at :20 past the hour, offset past the :15 resource syncs so it compares against fresh inventory. Provisioning.record_provisioned/3 — populates cloud_provisioned desired- state (upsert on resource_id, bumps spec_version). Future provisioning sagas call this; for now it's how drift gets something to detect. API (platform_admin only): - GET /api/v1/drift — open drift inbox - POST /api/v1/drift/:id/accept — adopt live value as desired-state Smoke verified: recorded a droplet's desired spec with a deliberately wrong size_slug + a correct region; detect_all flagged only size_slug, wrote the drift_detected event; accept updated the spec to the live value and closed the drift; re-detect found zero drift. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
35 lines
959 B
Elixir
35 lines
959 B
Elixir
defmodule ArcadiaCloud.Provisioning.CloudDrift do
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use Ecto.Schema
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import Ecto.Changeset
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@primary_key {:id, :binary_id, autogenerate: true}
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@foreign_key_type :binary_id
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@statuses ~w(open accepted reverted stale)
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schema "cloud_drift" do
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field :field, :string
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field :expected, :map
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field :actual, :map
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field :status, :string, default: "open"
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field :detected_at, :utc_datetime
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field :resolved_at, :utc_datetime
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field :resolved_by, :string
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belongs_to :resource, ArcadiaCloud.Cloud.CloudResource
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belongs_to :provisioned, ArcadiaCloud.Provisioning.CloudProvisioned
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timestamps(type: :utc_datetime)
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end
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@required ~w(resource_id provisioned_id field detected_at)a
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@optional ~w(expected actual status resolved_at resolved_by)a
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def changeset(drift, attrs) do
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drift
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|> cast(attrs, @required ++ @optional)
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|> validate_required(@required)
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|> validate_inclusion(:status, @statuses)
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end
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end
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