terra{form,grunt}: Add some needed old versions

pkgs/applications/networking/cluster/terraform/0.8.5.nix

@@ -0,0 +1,34 @@
+{ stdenv, lib, buildGoPackage, fetchFromGitHub }:
+
+buildGoPackage rec {
+  name = "terraform-${version}";
+  version = "0.8.5";
+
+  goPackagePath = "github.com/hashicorp/terraform";
+
+  src = fetchFromGitHub {
+    owner  = "hashicorp";
+    repo   = "terraform";
+    rev    = "v${version}";
+    sha256 = "1cxwv3652fpsbm2zk1akw356cd7w7vhny1623ighgbz9ha8gvg09";
+  };
+
+  postInstall = ''
+    # remove all plugins, they are part of the main binary now
+    for i in $bin/bin/*; do
+      if [[ $(basename $i) != terraform ]]; then
+        rm "$i"
+      fi
+    done
+  '';
+
+  meta = with stdenv.lib; {
+    description = "Tool for building, changing, and versioning infrastructure";
+    homepage = "https://www.terraform.io/";
+    license = licenses.mpl20;
+    maintainers = with maintainers; [
+      jgeerds
+      zimbatm
+    ];
+  };
+}

pkgs/applications/networking/cluster/terragrunt/0.9.8.nix

@@ -0,0 +1,31 @@
+{ stdenv, lib, buildGoPackage, fetchFromGitHub, terraform, makeWrapper }:
+
+buildGoPackage rec {
+  name = "terragrunt-${version}";
+  version = "0.9.8";
+
+  goPackagePath = "github.com/gruntwork-io/terragrunt";
+
+  src = fetchFromGitHub {
+    rev    = "v${version}";
+    owner  = "gruntwork-io";
+    repo   = "terragrunt";
+    sha256 = "0aakr17yzh5jzvlmg3pzpnsfwl31njg27bpck541492shqcqmkiz";
+  };
+
+  goDeps = ./deps.nix;
+
+  buildInputs = [ makeWrapper ];
+
+  postInstall = ''
+    wrapProgram $bin/bin/terragrunt \
+      --set TERRAGRUNT_TFPATH ${lib.getBin terraform}/bin/terraform
+  '';
+
+  meta = with stdenv.lib; {
+    description = "A thin wrapper for Terraform that supports locking for Terraform state and enforces best practices.";
+    homepage = https://github.com/gruntwork-io/terragrunt/;
+    license = licenses.mit;
+    maintainers = with maintainers; [ peterhoeg ];
+  };
+}

pkgs/top-level/all-packages.nix

@@ -17984,8 +17984,14 @@ with pkgs;
 
   terraform = callPackage ../applications/networking/cluster/terraform {};
 
+  terraform_0_8_5 = callPackage ../applications/networking/cluster/terraform/0.8.5.nix {};
+
   terragrunt = callPackage ../applications/networking/cluster/terragrunt {};
 
+  terragrunt_0_9_8 = callPackage ../applications/networking/cluster/terragrunt/0.9.8.nix {
+    terraform = terraform_0_8_5;
+  };
+
   tetex = callPackage ../tools/typesetting/tex/tetex { libpng = libpng12; };
 
   tewi-font = callPackage ../data/fonts/tewi  {};