{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE DuplicateRecordFields #-}
{-# LANGUAGE NamedFieldPuns #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE RecordWildCards #-}
{-# LANGUAGE StrictData #-}
{-# LANGUAGE NoImplicitPrelude #-}
{-# OPTIONS_GHC -fno-warn-unused-imports #-}
{-# OPTIONS_GHC -fno-warn-unused-matches #-}

-- Derived from AWS service descriptions, licensed under Apache 2.0.

-- |
-- Module      : Amazonka.ECS.Types.LinuxParameters
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
module Amazonka.ECS.Types.LinuxParameters where

import qualified Amazonka.Core as Core
import qualified Amazonka.Core.Lens.Internal as Lens
import qualified Amazonka.Data as Data
import Amazonka.ECS.Types.Device
import Amazonka.ECS.Types.KernelCapabilities
import Amazonka.ECS.Types.Tmpfs
import qualified Amazonka.Prelude as Prelude

-- | Linux-specific options that are applied to the container, such as Linux
-- KernelCapabilities.
--
-- /See:/ 'newLinuxParameters' smart constructor.
data LinuxParameters = LinuxParameters'
  { -- | The Linux capabilities for the container that are added to or dropped
    -- from the default configuration provided by Docker.
    --
    -- For tasks that use the Fargate launch type, @capabilities@ is supported
    -- for all platform versions but the @add@ parameter is only supported if
    -- using platform version 1.4.0 or later.
    capabilities :: Prelude.Maybe KernelCapabilities,
    -- | Any host devices to expose to the container. This parameter maps to
    -- @Devices@ in the
    -- <https://docs.docker.com/engine/api/v1.35/#operation/ContainerCreate Create a container>
    -- section of the
    -- <https://docs.docker.com/engine/api/v1.35/ Docker Remote API> and the
    -- @--device@ option to
    -- <https://docs.docker.com/engine/reference/run/#security-configuration docker run>.
    --
    -- If you\'re using tasks that use the Fargate launch type, the @devices@
    -- parameter isn\'t supported.
    devices :: Prelude.Maybe [Device],
    -- | Run an @init@ process inside the container that forwards signals and
    -- reaps processes. This parameter maps to the @--init@ option to
    -- <https://docs.docker.com/engine/reference/run/#security-configuration docker run>.
    -- This parameter requires version 1.25 of the Docker Remote API or greater
    -- on your container instance. To check the Docker Remote API version on
    -- your container instance, log in to your container instance and run the
    -- following command:
    -- @sudo docker version --format \'{{.Server.APIVersion}}\'@
    initProcessEnabled :: Prelude.Maybe Prelude.Bool,
    -- | The total amount of swap memory (in MiB) a container can use. This
    -- parameter will be translated to the @--memory-swap@ option to
    -- <https://docs.docker.com/engine/reference/run/#security-configuration docker run>
    -- where the value would be the sum of the container memory plus the
    -- @maxSwap@ value.
    --
    -- If a @maxSwap@ value of @0@ is specified, the container will not use
    -- swap. Accepted values are @0@ or any positive integer. If the @maxSwap@
    -- parameter is omitted, the container will use the swap configuration for
    -- the container instance it is running on. A @maxSwap@ value must be set
    -- for the @swappiness@ parameter to be used.
    --
    -- If you\'re using tasks that use the Fargate launch type, the @maxSwap@
    -- parameter isn\'t supported.
    maxSwap :: Prelude.Maybe Prelude.Int,
    -- | The value for the size (in MiB) of the @\/dev\/shm@ volume. This
    -- parameter maps to the @--shm-size@ option to
    -- <https://docs.docker.com/engine/reference/run/#security-configuration docker run>.
    --
    -- If you are using tasks that use the Fargate launch type, the
    -- @sharedMemorySize@ parameter is not supported.
    sharedMemorySize :: Prelude.Maybe Prelude.Int,
    -- | This allows you to tune a container\'s memory swappiness behavior. A
    -- @swappiness@ value of @0@ will cause swapping to not happen unless
    -- absolutely necessary. A @swappiness@ value of @100@ will cause pages to
    -- be swapped very aggressively. Accepted values are whole numbers between
    -- @0@ and @100@. If the @swappiness@ parameter is not specified, a default
    -- value of @60@ is used. If a value is not specified for @maxSwap@ then
    -- this parameter is ignored. This parameter maps to the
    -- @--memory-swappiness@ option to
    -- <https://docs.docker.com/engine/reference/run/#security-configuration docker run>.
    --
    -- If you\'re using tasks that use the Fargate launch type, the
    -- @swappiness@ parameter isn\'t supported.
    swappiness :: Prelude.Maybe Prelude.Int,
    -- | The container path, mount options, and size (in MiB) of the tmpfs mount.
    -- This parameter maps to the @--tmpfs@ option to
    -- <https://docs.docker.com/engine/reference/run/#security-configuration docker run>.
    --
    -- If you\'re using tasks that use the Fargate launch type, the @tmpfs@
    -- parameter isn\'t supported.
    tmpfs :: Prelude.Maybe [Tmpfs]
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'LinuxParameters' with all optional fields omitted.
--
-- Use <https://hackage.haskell.org/package/generic-lens generic-lens> or <https://hackage.haskell.org/package/optics optics> to modify other optional fields.
--
-- The following record fields are available, with the corresponding lenses provided
-- for backwards compatibility:
--
-- 'capabilities', 'linuxParameters_capabilities' - The Linux capabilities for the container that are added to or dropped
-- from the default configuration provided by Docker.
--
-- For tasks that use the Fargate launch type, @capabilities@ is supported
-- for all platform versions but the @add@ parameter is only supported if
-- using platform version 1.4.0 or later.
--
-- 'devices', 'linuxParameters_devices' - Any host devices to expose to the container. This parameter maps to
-- @Devices@ in the
-- <https://docs.docker.com/engine/api/v1.35/#operation/ContainerCreate Create a container>
-- section of the
-- <https://docs.docker.com/engine/api/v1.35/ Docker Remote API> and the
-- @--device@ option to
-- <https://docs.docker.com/engine/reference/run/#security-configuration docker run>.
--
-- If you\'re using tasks that use the Fargate launch type, the @devices@
-- parameter isn\'t supported.
--
-- 'initProcessEnabled', 'linuxParameters_initProcessEnabled' - Run an @init@ process inside the container that forwards signals and
-- reaps processes. This parameter maps to the @--init@ option to
-- <https://docs.docker.com/engine/reference/run/#security-configuration docker run>.
-- This parameter requires version 1.25 of the Docker Remote API or greater
-- on your container instance. To check the Docker Remote API version on
-- your container instance, log in to your container instance and run the
-- following command:
-- @sudo docker version --format \'{{.Server.APIVersion}}\'@
--
-- 'maxSwap', 'linuxParameters_maxSwap' - The total amount of swap memory (in MiB) a container can use. This
-- parameter will be translated to the @--memory-swap@ option to
-- <https://docs.docker.com/engine/reference/run/#security-configuration docker run>
-- where the value would be the sum of the container memory plus the
-- @maxSwap@ value.
--
-- If a @maxSwap@ value of @0@ is specified, the container will not use
-- swap. Accepted values are @0@ or any positive integer. If the @maxSwap@
-- parameter is omitted, the container will use the swap configuration for
-- the container instance it is running on. A @maxSwap@ value must be set
-- for the @swappiness@ parameter to be used.
--
-- If you\'re using tasks that use the Fargate launch type, the @maxSwap@
-- parameter isn\'t supported.
--
-- 'sharedMemorySize', 'linuxParameters_sharedMemorySize' - The value for the size (in MiB) of the @\/dev\/shm@ volume. This
-- parameter maps to the @--shm-size@ option to
-- <https://docs.docker.com/engine/reference/run/#security-configuration docker run>.
--
-- If you are using tasks that use the Fargate launch type, the
-- @sharedMemorySize@ parameter is not supported.
--
-- 'swappiness', 'linuxParameters_swappiness' - This allows you to tune a container\'s memory swappiness behavior. A
-- @swappiness@ value of @0@ will cause swapping to not happen unless
-- absolutely necessary. A @swappiness@ value of @100@ will cause pages to
-- be swapped very aggressively. Accepted values are whole numbers between
-- @0@ and @100@. If the @swappiness@ parameter is not specified, a default
-- value of @60@ is used. If a value is not specified for @maxSwap@ then
-- this parameter is ignored. This parameter maps to the
-- @--memory-swappiness@ option to
-- <https://docs.docker.com/engine/reference/run/#security-configuration docker run>.
--
-- If you\'re using tasks that use the Fargate launch type, the
-- @swappiness@ parameter isn\'t supported.
--
-- 'tmpfs', 'linuxParameters_tmpfs' - The container path, mount options, and size (in MiB) of the tmpfs mount.
-- This parameter maps to the @--tmpfs@ option to
-- <https://docs.docker.com/engine/reference/run/#security-configuration docker run>.
--
-- If you\'re using tasks that use the Fargate launch type, the @tmpfs@
-- parameter isn\'t supported.
newLinuxParameters ::
  LinuxParameters
newLinuxParameters =
  LinuxParameters'
    { capabilities = Prelude.Nothing,
      devices = Prelude.Nothing,
      initProcessEnabled = Prelude.Nothing,
      maxSwap = Prelude.Nothing,
      sharedMemorySize = Prelude.Nothing,
      swappiness = Prelude.Nothing,
      tmpfs = Prelude.Nothing
    }

-- | The Linux capabilities for the container that are added to or dropped
-- from the default configuration provided by Docker.
--
-- For tasks that use the Fargate launch type, @capabilities@ is supported
-- for all platform versions but the @add@ parameter is only supported if
-- using platform version 1.4.0 or later.
linuxParameters_capabilities :: Lens.Lens' LinuxParameters (Prelude.Maybe KernelCapabilities)
linuxParameters_capabilities = Lens.lens (\LinuxParameters' {capabilities} -> capabilities) (\s@LinuxParameters' {} a -> s {capabilities = a} :: LinuxParameters)

-- | Any host devices to expose to the container. This parameter maps to
-- @Devices@ in the
-- <https://docs.docker.com/engine/api/v1.35/#operation/ContainerCreate Create a container>
-- section of the
-- <https://docs.docker.com/engine/api/v1.35/ Docker Remote API> and the
-- @--device@ option to
-- <https://docs.docker.com/engine/reference/run/#security-configuration docker run>.
--
-- If you\'re using tasks that use the Fargate launch type, the @devices@
-- parameter isn\'t supported.
linuxParameters_devices :: Lens.Lens' LinuxParameters (Prelude.Maybe [Device])
linuxParameters_devices = Lens.lens (\LinuxParameters' {devices} -> devices) (\s@LinuxParameters' {} a -> s {devices = a} :: LinuxParameters) Prelude.. Lens.mapping Lens.coerced

-- | Run an @init@ process inside the container that forwards signals and
-- reaps processes. This parameter maps to the @--init@ option to
-- <https://docs.docker.com/engine/reference/run/#security-configuration docker run>.
-- This parameter requires version 1.25 of the Docker Remote API or greater
-- on your container instance. To check the Docker Remote API version on
-- your container instance, log in to your container instance and run the
-- following command:
-- @sudo docker version --format \'{{.Server.APIVersion}}\'@
linuxParameters_initProcessEnabled :: Lens.Lens' LinuxParameters (Prelude.Maybe Prelude.Bool)
linuxParameters_initProcessEnabled = Lens.lens (\LinuxParameters' {initProcessEnabled} -> initProcessEnabled) (\s@LinuxParameters' {} a -> s {initProcessEnabled = a} :: LinuxParameters)

-- | The total amount of swap memory (in MiB) a container can use. This
-- parameter will be translated to the @--memory-swap@ option to
-- <https://docs.docker.com/engine/reference/run/#security-configuration docker run>
-- where the value would be the sum of the container memory plus the
-- @maxSwap@ value.
--
-- If a @maxSwap@ value of @0@ is specified, the container will not use
-- swap. Accepted values are @0@ or any positive integer. If the @maxSwap@
-- parameter is omitted, the container will use the swap configuration for
-- the container instance it is running on. A @maxSwap@ value must be set
-- for the @swappiness@ parameter to be used.
--
-- If you\'re using tasks that use the Fargate launch type, the @maxSwap@
-- parameter isn\'t supported.
linuxParameters_maxSwap :: Lens.Lens' LinuxParameters (Prelude.Maybe Prelude.Int)
linuxParameters_maxSwap = Lens.lens (\LinuxParameters' {maxSwap} -> maxSwap) (\s@LinuxParameters' {} a -> s {maxSwap = a} :: LinuxParameters)

-- | The value for the size (in MiB) of the @\/dev\/shm@ volume. This
-- parameter maps to the @--shm-size@ option to
-- <https://docs.docker.com/engine/reference/run/#security-configuration docker run>.
--
-- If you are using tasks that use the Fargate launch type, the
-- @sharedMemorySize@ parameter is not supported.
linuxParameters_sharedMemorySize :: Lens.Lens' LinuxParameters (Prelude.Maybe Prelude.Int)
linuxParameters_sharedMemorySize = Lens.lens (\LinuxParameters' {sharedMemorySize} -> sharedMemorySize) (\s@LinuxParameters' {} a -> s {sharedMemorySize = a} :: LinuxParameters)

-- | This allows you to tune a container\'s memory swappiness behavior. A
-- @swappiness@ value of @0@ will cause swapping to not happen unless
-- absolutely necessary. A @swappiness@ value of @100@ will cause pages to
-- be swapped very aggressively. Accepted values are whole numbers between
-- @0@ and @100@. If the @swappiness@ parameter is not specified, a default
-- value of @60@ is used. If a value is not specified for @maxSwap@ then
-- this parameter is ignored. This parameter maps to the
-- @--memory-swappiness@ option to
-- <https://docs.docker.com/engine/reference/run/#security-configuration docker run>.
--
-- If you\'re using tasks that use the Fargate launch type, the
-- @swappiness@ parameter isn\'t supported.
linuxParameters_swappiness :: Lens.Lens' LinuxParameters (Prelude.Maybe Prelude.Int)
linuxParameters_swappiness = Lens.lens (\LinuxParameters' {swappiness} -> swappiness) (\s@LinuxParameters' {} a -> s {swappiness = a} :: LinuxParameters)

-- | The container path, mount options, and size (in MiB) of the tmpfs mount.
-- This parameter maps to the @--tmpfs@ option to
-- <https://docs.docker.com/engine/reference/run/#security-configuration docker run>.
--
-- If you\'re using tasks that use the Fargate launch type, the @tmpfs@
-- parameter isn\'t supported.
linuxParameters_tmpfs :: Lens.Lens' LinuxParameters (Prelude.Maybe [Tmpfs])
linuxParameters_tmpfs = Lens.lens (\LinuxParameters' {tmpfs} -> tmpfs) (\s@LinuxParameters' {} a -> s {tmpfs = a} :: LinuxParameters) Prelude.. Lens.mapping Lens.coerced

instance Data.FromJSON LinuxParameters where
  parseJSON =
    Data.withObject
      "LinuxParameters"
      ( \x ->
          LinuxParameters'
            Prelude.<$> (x Data..:? "capabilities")
            Prelude.<*> (x Data..:? "devices" Data..!= Prelude.mempty)
            Prelude.<*> (x Data..:? "initProcessEnabled")
            Prelude.<*> (x Data..:? "maxSwap")
            Prelude.<*> (x Data..:? "sharedMemorySize")
            Prelude.<*> (x Data..:? "swappiness")
            Prelude.<*> (x Data..:? "tmpfs" Data..!= Prelude.mempty)
      )

instance Prelude.Hashable LinuxParameters where
  hashWithSalt _salt LinuxParameters' {..} =
    _salt
      `Prelude.hashWithSalt` capabilities
      `Prelude.hashWithSalt` devices
      `Prelude.hashWithSalt` initProcessEnabled
      `Prelude.hashWithSalt` maxSwap
      `Prelude.hashWithSalt` sharedMemorySize
      `Prelude.hashWithSalt` swappiness
      `Prelude.hashWithSalt` tmpfs

instance Prelude.NFData LinuxParameters where
  rnf LinuxParameters' {..} =
    Prelude.rnf capabilities
      `Prelude.seq` Prelude.rnf devices
      `Prelude.seq` Prelude.rnf initProcessEnabled
      `Prelude.seq` Prelude.rnf maxSwap
      `Prelude.seq` Prelude.rnf sharedMemorySize
      `Prelude.seq` Prelude.rnf swappiness
      `Prelude.seq` Prelude.rnf tmpfs

instance Data.ToJSON LinuxParameters where
  toJSON LinuxParameters' {..} =
    Data.object
      ( Prelude.catMaybes
          [ ("capabilities" Data..=) Prelude.<$> capabilities,
            ("devices" Data..=) Prelude.<$> devices,
            ("initProcessEnabled" Data..=)
              Prelude.<$> initProcessEnabled,
            ("maxSwap" Data..=) Prelude.<$> maxSwap,
            ("sharedMemorySize" Data..=)
              Prelude.<$> sharedMemorySize,
            ("swappiness" Data..=) Prelude.<$> swappiness,
            ("tmpfs" Data..=) Prelude.<$> tmpfs
          ]
      )