Graham McIntire
1fc066d95b
- Add snmp_memory_pools table and MemoryPool schema - Add snmp_storage table and Storage schema - Add discover_memory_pools/1 for HOST-RESOURCES-MIB RAM/swap - Add discover_storage/1 for HOST-RESOURCES-MIB disk storage - Add comprehensive tests for schema validation and discovery - Completes Phase 1 of discovery improvements
69 lines
1.9 KiB
Elixir
69 lines
1.9 KiB
Elixir
defmodule Towerops.Snmp.MemoryPool do
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@moduledoc """
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SNMP memory pool schema for tracking RAM, swap, and other memory types.
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Memory pools are discovered via:
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- HOST-RESOURCES-MIB hrStorageTable (RAM, virtual memory)
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- UCD-SNMP-MIB memory group (Linux memory stats)
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Tracks total and used memory for capacity monitoring.
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"""
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use Ecto.Schema
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import Ecto.Changeset
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alias Ecto.Association.NotLoaded
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alias Towerops.Snmp.Device
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@valid_pool_types ~w(ram swap cache buffer other)
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@primary_key {:id, :binary_id, autogenerate: true}
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@foreign_key_type :binary_id
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schema "snmp_memory_pools" do
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field :pool_index, :string
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field :pool_name, :string
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field :pool_type, :string
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field :total_bytes, :integer
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field :used_bytes, :integer
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field :last_checked_at, :utc_datetime
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field :metadata, :map, default: %{}
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belongs_to :snmp_device, Device
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timestamps(type: :utc_datetime)
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end
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@type t :: %__MODULE__{
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id: Ecto.UUID.t(),
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pool_index: String.t(),
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pool_name: String.t() | nil,
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pool_type: String.t(),
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total_bytes: integer() | nil,
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used_bytes: integer() | nil,
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last_checked_at: DateTime.t() | nil,
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metadata: map(),
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snmp_device_id: Ecto.UUID.t(),
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snmp_device: NotLoaded.t() | Device.t(),
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inserted_at: DateTime.t(),
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updated_at: DateTime.t()
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}
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@doc false
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def changeset(memory_pool, attrs) do
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memory_pool
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|> cast(attrs, [
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:snmp_device_id,
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:pool_index,
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:pool_name,
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:pool_type,
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:total_bytes,
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:used_bytes,
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:last_checked_at,
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:metadata
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])
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|> validate_required([:snmp_device_id, :pool_index, :pool_type])
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|> validate_inclusion(:pool_type, @valid_pool_types)
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|> unique_constraint([:snmp_device_id, :pool_index])
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|> foreign_key_constraint(:snmp_device_id)
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end
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end
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