default.nix

{ pkgs ? import <nixpkgs> {}, compiler ? "ghc844" }:
pkgs.haskell.packages.${compiler}.callPackage ./hellogce.nix { }

error

[root@nixos:~/hellogce]# nixops deploy -d formosa-charity > 1
trace: `lib.nixpkgsVersion` is deprecated, use `lib.version` instead!
building all machine configurations...
warning: dumping very large path (> 256 MiB); this may run out of memory
formosa-charity> copying closure...
formosa-charity> closures copied successfully
formosa-charity> updating GRUB 2 menu...
formosa-charity> activating the configuration...
formosa-charity> setting up /etc...
formosa-charity> reloading user units for root...
formosa-charity> setting up tmpfiles
formosa-charity> warning: the following units failed: formosa-charity.service
formosa-charity>
formosa-charity> ● formosa-charity.service - formosa-charity Webserver
formosa-charity>    Loaded: loaded (/nix/store/v5z9ds473n6zrzv8k2w8whms7p36fr3p-unit-formosa-charity.service/formosa-charity.service; enabled; vendor preset: enabled)
formosa-charity>    Active: failed (Result: exit-code) since Mon 2019-06-10 05:26:55 UTC; 232ms ago
formosa-charity>   Process: 8342 ExecStart=/nix/store/d3r079kbwqjzd0w06dix3id9pmm8x5s6-formosa-charity-0.0.0/bin/formosa-charity (code=exited, status=1/FAILURE)
formosa-charity>  Main PID: 8342 (code=exited, status=1/FAILURE)
formosa-charity>
formosa-charity> Jun 10 05:26:55 formosa-chairty systemd[1]: Started formosa-charity Webserver.
formosa-charity> Jun 10 05:26:55 formosa-chairty formosa-charity[8342]: formosa-charity: static: getDirectoryContents:openDirStream: does not exist (No such file or directory)
formosa-charity> Jun 10 05:26:55 formosa-chairty systemd[1]: formosa-charity.service: Main process exited, code=exited, status=1/FAILURE
formosa-charity> Jun 10 05:26:55 formosa-chairty systemd[1]: formosa-charity.service: Failed with result 'exit-code'.
formosa-charity> error: Traceback (most recent call last):
  File "/nix/store/sl1gfk7ff7dsa6w9r63pxhsn9vywn28h-nixops-1.6/lib/python2.7/site-packages/nixops/deployment.py", line 731, in worker
    raise Exception("unable to activate new configuration")
Exception: unable to activate new configuration

error: activation of 1 of 1 machines failed (namely on ‘formosa-charity’)

formosa-charity-conf.nix

{
  network.description = "formosa-charity";

  formosa-charity =
    { config, pkgs, ... }: let
      formosa-charity = import ./formosa-charity/default.nix { };
    in
    { networking.hostName = "formosa-chairty";

      networking.firewall.allowedTCPPorts = [ 22 80 ];
      environment.systemPackages = [ formosa-charity ];

      systemd.services.formosa-charity =
        { description = "formosa-charity Webserver";
          wantedBy = [ "multi-user.target" ];
          after = [ "network.target" ];
          serviceConfig =
            { ExecStart = "${formosa-charity}/bin/formosa-charity";
            };
        };
    };
}

formosa-charity-gce.nix

let

  # change this as necessary or wipe and use ENV vars
  credentials = {
    project = "johnny-nixos-cloud";
    serviceAccount = "882134740696-compute@developer.gserviceaccount.com";
    accessKey = "key.pem";
  };

  gce = { resources, ...}:  {
    networking.firewall.allowedTCPPorts = [ 80 ];
    deployment.targetEnv = "gce";
    deployment.gce = credentials // {
      region = "asia-east1-a";
      tags = [ "public-http" ];
      rootDiskSize = 10;
      network = resources.gceNetworks.lb-net;
    };
  };

in {


  # create a network that allows SSH traffic(by default), pings
  # and HTTP traffic for machines tagged "public-http"
  resources.gceNetworks.lb-net = credentials // {
    addressRange = "192.168.4.0/24";
    firewall = {
      allow-http = {
        targetTags = [ "public-http" ];
        allowed.tcp = [ 80 ];
      };
      allow-ping.allowed.icmp = null;
    };
  };

  # by default, health check pings port 80, so we don't have to set anything
/*  resources.gceHTTPHealthChecks.plain-hc = credentials; */

  formosa-charity = gce;

}

formosa-charity.cabal

-- This file has been generated from package.yaml by hpack version 0.28.2.
--
-- see: https://github.com/sol/hpack
--
-- hash: fb8443f14c80efe58c5edca745fc5bf213cc223b3ecaab8fecbb9ce48683b019

name:           formosa-charity
version:        0.0.0
build-type:     Simple
cabal-version:  >= 1.10

flag dev
  description: Turn on development settings, like auto-reload templates.
  manual: False
  default: False

flag library-only
  description: Build for use with "yesod devel"
  manual: False
  default: False

library
  exposed-modules:
      Application
      Foundation
      Handler.Admin
      Handler.Comment
      Handler.Common
      Handler.Home
      Handler.Profile
      Handler.SignUpForm
      Import
      Import.NoFoundation
      Model
      Settings
      Settings.StaticFiles
      HelloSub
      HelloSub.Data
      UserCrud
      ActivityCrud
  other-modules:
      Paths_formosa_charity
  hs-source-dirs:
      src
  build-depends:
      aeson >=0.6 && <1.4
    , base >=4.8.2.0 && <4.9 || >=4.9.1.0 && <5
    , bytestring >=0.9 && <0.11
    , case-insensitive
    , classy-prelude >=1.4
-- && <1.5
    , classy-prelude-conduit >=1.4 
-- && <1.5
    , classy-prelude-yesod >=1.4 
-- && <1.5
    , conduit >=1.0 && <2.0
    , containers
    , data-default
    , directory >=1.1 && <1.4
    , fast-logger >=2.2 && <2.5
    , file-embed
    , foreign-store
    , hjsmin >=0.1 && <0.3
    , http-client-tls >=0.3 && <0.4
    , http-conduit >=2.3 && <2.4
    , monad-control >=0.3 && <1.1
    , monad-logger >=0.3 && <0.4
    , persistent >=2.8 && <2.9
    , persistent-sqlite >=2.8 && <2.9
    , persistent-template >=2.5 && <2.9
    , safe
    , shakespeare >=2.0 && <2.1
    , template-haskell
    , text >=0.11 && <2.0
    , time
    , unordered-containers
    , vector
    , wai
    , wai-extra >=3.0 && <3.1
    , wai-logger >=2.2 && <2.4
    , warp >=3.0 && <3.3
    , yaml >=0.8 && <0.9
    , yesod >=1.6 && <1.7
    , yesod-auth >=1.6 && <1.7
    , yesod-core >=1.6 && <1.7
    , yesod-form >=1.6 && <1.7
    , yesod-static >=1.6 && <1.7
--    , persistent-project-m36
    , project-m36 >= 0.6
    , yesod-auth
    , rio
    , project-m36-typed
--    , uuid
    , basic-sop
    , generics-sop
    , binary
    , deepseq
    , QuickCheck
    , yesod-project-m36
    , yesod-auth-fb
    , yesod-auth-oauth2
    , yesod-fb
    , fb
    , blaze-builder
    , blaze-markup
    , blaze-html
    , directory 
    , yesod-crud
    , mtl
if (flag(dev)) || (flag(library-only))
    ghc-options: -Wall -fwarn-tabs -O0
    cpp-options: -DDEVELOPMENT
  else
    ghc-options: -Wall -fwarn-tabs -O2 -fprint-potential-instances 
  default-language: Haskell2010

executable formosa-charity
  main-is: main.hs
  other-modules:
      DevelMain
      Paths_formosa_charity
  hs-source-dirs:
      app
  ghc-options: -threaded -rtsopts -with-rtsopts=-N
  build-depends:
      aeson >=0.6 && <1.4
    , base >=4.8.2.0 && <4.9 || >=4.9.1.0 && <5
    , bytestring >=0.9 && <0.11
    , case-insensitive
    , classy-prelude >=1.4 && <1.5
    , classy-prelude-conduit >=1.4 && <1.5
    , classy-prelude-yesod >=1.4 && <1.5
    , conduit >=1.0 && <2.0
    , containers
    , data-default
    , directory >=1.1 && <1.4
    , fast-logger >=2.2 && <2.5
    , file-embed
    , foreign-store
    , formosa-charity
    , hjsmin >=0.1 && <0.3
    , http-client-tls >=0.3 && <0.4
    , http-conduit >=2.3 && <2.4
    , monad-control >=0.3 && <1.1
    , monad-logger >=0.3 && <0.4
    , persistent >=2.8 && <2.9
    , persistent-sqlite >=2.8 && <2.9
    , persistent-template >=2.5 && <2.9
    , safe
    , shakespeare >=2.0 && <2.1
    , template-haskell
    , text >=0.11 && <2.0
    , time
    , unordered-containers
    , vector
    , wai
    , wai-extra >=3.0 && <3.1
    , wai-logger >=2.2 && <2.4
    , warp >=3.0 && <3.3
    , yaml >=0.8 && <0.9
    , yesod >=1.6 && <1.7
    , yesod-auth >=1.6 && <1.7
    , yesod-core >=1.6 && <1.7
    , yesod-form >=1.6 && <1.7
    , yesod-static >=1.6 && <1.7
  if flag(library-only)
    buildable: False
  default-language: Haskell2010

--test-suite formosa-charity-test
--  type: exitcode-stdio-1.0
--  main-is: Spec.hs
--  other-modules:
--      Handler.CommentSpec
--      Handler.CommonSpec
--      Handler.HomeSpec
--      Handler.ProfileSpec
--      TestImport
--      Paths_formosa_charity
--  hs-source-dirs:
--      test
--  ghc-options: -Wall
--  build-depends:
--      aeson >=0.6 && <1.4
--    , base >=4.8.2.0 && <4.9 || >=4.9.1.0 && <5
--    , bytestring >=0.9 && <0.11
--    , case-insensitive
--    , classy-prelude >=1.4 && <1.5
--    , classy-prelude-conduit >=1.4 && <1.5
--    , classy-prelude-yesod >=1.4 && <1.5
--    , conduit >=1.0 && <2.0
--    , containers
--    , data-default
--    , directory >=1.1 && <1.4
--    , fast-logger >=2.2 && <2.5
--    , file-embed
--    , foreign-store
--    , formosa-charity
--    , hjsmin >=0.1 && <0.3
--    , hspec >=2.0.0
--    , http-client-tls >=0.3 && <0.4
--    , http-conduit >=2.3 && <2.4
--    , microlens
--    , monad-control >=0.3 && <1.1
--    , monad-logger >=0.3 && <0.4
--    , persistent >=2.8 && <2.9
--    , persistent-sqlite >=2.8 && <2.9
--    , persistent-template >=2.5 && <2.9
--    , safe
--    , shakespeare >=2.0 && <2.1
--    , template-haskell
--    , text >=0.11 && <2.0
--    , time
--    , unordered-containers
--    , vector
--    , wai
--    , wai-extra >=3.0 && <3.1
--    , wai-logger >=2.2 && <2.4
--    , warp >=3.0 && <3.3
--    , yaml >=0.8 && <0.9
--    , yesod >=1.6 && <1.7
--    , yesod-auth >=1.6 && <1.7
--    , yesod-core >=1.6 && <1.7
--    , yesod-form >=1.6 && <1.7
--    , yesod-static >=1.6 && <1.7
--    , yesod-test
--  default-language: Haskell2010

formosa-charity.nix

{ mkDerivation, aeson, base, basic-sop, binary, blaze-builder
, blaze-html, blaze-markup, bytestring, case-insensitive
, classy-prelude, classy-prelude-conduit, classy-prelude-yesod
, conduit, containers, data-default, deepseq, directory
, fast-logger, fb, file-embed, foreign-store, generics-sop, hjsmin
, http-client-tls, http-conduit, monad-control, monad-logger, mtl
, persistent, persistent-sqlite, persistent-template, project-m36
, project-m36-typed, QuickCheck, rio, safe, shakespeare, stdenv
, template-haskell, text, time, unordered-containers, vector, wai
, wai-extra, wai-logger, warp, yaml, yesod, yesod-auth
, yesod-auth-fb, yesod-auth-oauth2, yesod-core, yesod-crud
, yesod-fb, yesod-form, yesod-project-m36, yesod-static
}:
mkDerivation {
  pname = "formosa-charity";
  version = "0.0.0";
  src = ./.;
  isLibrary = true;
  isExecutable = true;
  libraryHaskellDepends = [
    aeson base basic-sop binary blaze-builder blaze-html blaze-markup
    bytestring case-insensitive classy-prelude classy-prelude-conduit
    classy-prelude-yesod conduit containers data-default deepseq
    directory fast-logger fb file-embed foreign-store generics-sop
    hjsmin http-client-tls http-conduit monad-control monad-logger mtl
    persistent persistent-sqlite persistent-template project-m36
    project-m36-typed QuickCheck rio safe shakespeare template-haskell
    text time unordered-containers vector wai wai-extra wai-logger warp
    yaml yesod yesod-auth yesod-auth-fb yesod-auth-oauth2 yesod-core
    yesod-crud yesod-fb yesod-form yesod-project-m36 yesod-static
  ];
  executableHaskellDepends = [
    aeson base bytestring case-insensitive classy-prelude
    classy-prelude-conduit classy-prelude-yesod conduit containers
    data-default directory fast-logger file-embed foreign-store hjsmin
    http-client-tls http-conduit monad-control monad-logger persistent
    persistent-sqlite persistent-template safe shakespeare
    template-haskell text time unordered-containers vector wai
    wai-extra wai-logger warp yaml yesod yesod-auth yesod-core
    yesod-form yesod-static
  ];
  license = stdenv.lib.licenses.unfree;
  hydraPlatforms = stdenv.lib.platforms.none;
}

hellogce-configuration.nix

# ~/hellogce/hellogce-configuration.nix
{
  network.description = "hellogce";

  hellogce =
    { config, pkgs, ... }: let
      hellogce = import ./hellogce/default.nix { inherit pkgs; };
    in
    { networking.hostName = "hellogce";

      networking.firewall.allowedTCPPorts = [ 22 80 ];
      environment.systemPackages = [ hellogce ];

      systemd.services.hellogce =
        { description = "hellogce Webserver";
          wantedBy = [ "multi-user.target" ];
          after = [ "network.target" ];
          serviceConfig =
            { ExecStart = "${hellogce}/bin/hellogce";
            };
        };
    };
}

hellogce-gce.nix

let

  # change this as necessary or wipe and use ENV vars
  credentials = {
    project = "johnny-nixos-cloud";
    serviceAccount = "882134740696-compute@developer.gserviceaccount.com";
    accessKey = "key.pem";
  };

  gce = { resources, ...}:  {
    networking.firewall.allowedTCPPorts = [ 80 ];
    deployment.targetEnv = "gce";
    deployment.gce = credentials // {
      region = "asia-east1-a";
      tags = [ "public-http" ];
      rootDiskSize = 50;
      network = resources.gceNetworks.lb-net;
    };
  };

in {


  # create a network that allows SSH traffic(by default), pings
  # and HTTP traffic for machines tagged "public-http"
  resources.gceNetworks.lb-net = credentials // {
    addressRange = "192.168.4.0/24";
    firewall = {
      allow-http = {
        targetTags = [ "public-http" ];
        allowed.tcp = [ 80 ];
      };
      allow-ping.allowed.icmp = null;
    };
  };

  # by default, health check pings port 80, so we don't have to set anything
/*  resources.gceHTTPHealthChecks.plain-hc = credentials; */

  hellogce = gce;

}

hellogce.cabal

-- Initial hellogce.cabal generated by cabal init.  For further
-- documentation, see http://haskell.org/cabal/users-guide/

name:                hellogce
version:             0.1.0.0
synopsis:            deploying a simple haskell project to GCE by nixops
-- description:
license:             GPL-3
license-file:        LICENSE
author:              Yu-Ming Liao
maintainer:          dycan0716@gmail.com
-- copyright:
category:            Web
build-type:          Simple
extra-source-files:  ChangeLog.md
cabal-version:       >=1.10

executable hellogce
  main-is:             Main.hs
  -- other-modules:
  -- other-extensions:
  build-depends:       base >=4.11 && <4.12
                     , yesod
                     , yesod-auth
                     , data-default
                     , http-conduit
                     , text
  hs-source-dirs:      src
  default-language:    Haskell2010

hellogce.nix

{ mkDerivation, base, data-default, http-conduit, stdenv, text
, yesod, yesod-auth
}:
mkDerivation {
  pname = "hellogce";
  version = "0.1.0.0";
  src = ./.;
  isLibrary = false;
  isExecutable = true;
  executableHaskellDepends = [
    base data-default http-conduit text yesod yesod-auth
  ];
  description = "deploying a simple haskell project to GCE by nixops";
  license = stdenv.lib.licenses.gpl3;
}