AWS via Haskell: SSM

aws-via-haskell.cabal

executable ssm-app
  default-language:                         Haskell2010
  hs-source-dirs:                           ssm
  main-is:                                  Main.hs
  ghc-options:                              -threaded -rtsopts -with-rtsopts=-N -W -Wall -fwarn-incomplete-patterns -fwarn-unused-imports
  build-depends:                            amazonka-ssm
                                          , aws-via-haskell
                                          , base >= 4.7 && < 5
                                          , directory
                                          , filepath
                                          , text
  other-modules:                            SSMImports

LICENSE

The MIT License (MIT)

Copyright (c) 2018 Richard Cook

Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Main.hs

{-|
Module      : Main
Description : SSM (Simple Systems Manager) demo
Copyright   : (C) Richard Cook, 2018
License     : MIT
Maintainer  : [email protected]
Stability   : experimental
Portability : portable
-}

{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE TemplateHaskell #-}
{-# LANGUAGE TypeFamilies #-}

module Main (main) where

import           AWSViaHaskell
import           Control.Monad (void)
import qualified Data.List.NonEmpty as NonEmpty (fromList)
import           Data.Maybe (fromJust)
import           Data.Monoid ((<>))
import           Data.Text (Text)
import qualified Data.Text.IO as Text (putStrLn)
import           SSMImports
import           System.Directory (getHomeDirectory)
import           System.FilePath ((</>))

wrapAWSService 'ssm "SSMService" "SSMSession"

newtype ParameterName = ParameterName Text

newtype ParameterValue = ParameterValue Text

doGetParameter :: ParameterName -> SSMSession -> IO (Text, Integer)
doGetParameter (ParameterName pn) = withAWS $ do
    result <- send $ getParameters (NonEmpty.fromList [pn])
    let param = head $ result ^. grsParameters
    return $ (fromJust (param ^. pValue), fromJust (param ^. pVersion))

doPutParameter :: ParameterName -> ParameterValue -> SSMSession -> IO ()
doPutParameter (ParameterName pn) (ParameterValue pv) = withAWS $
    void (send $ putParameter pn pv String & ppOverwrite .~ Just True)

main :: IO ()
main = do
    homeDir <- getHomeDirectory
    let conf = awsConfig (AWSRegion Ohio)
                & awscCredentials .~ (FromFile "aws-via-haskell" $ homeDir </> ".aws" </> "credentials")

    ssmSession <- connect conf ssmService

    putStrLn "doPutParameter"
    doPutParameter (ParameterName "/AAA/BBB") (ParameterValue "CCC") ssmSession

    putStrLn "doGetParameter"
    (value, version) <- doGetParameter (ParameterName "/AAA/BBB") ssmSession
    Text.putStrLn $ "Value: " <> value
    putStrLn $ "Version: " ++ show version

    putStrLn "Done"

SSMImports.hs

{-|
Module      : Main
Description : Imports module for SSM demo
Copyright   : (C) Richard Cook, 2018
License     : MIT
Maintainer  : [email protected]
Stability   : experimental
Portability : portable
-}

module SSMImports
    ( ParameterType(..)
    , getParameters
    , grsParameters
    , pValue
    , pVersion
    , ppOverwrite
    , putParameter
    , ssm
    ) where

import Network.AWS.SSM