nixpkgs/pkgs/applications/networking/cluster/terraform/default.nix
2019-10-17 20:01:00 -05:00

127 lines
4.2 KiB
Nix

{ stdenv
, lib
, buildEnv
, buildGoPackage
, fetchFromGitHub
, makeWrapper
, runCommand
, writeText
, terraform-providers
}:
let
goPackagePath = "github.com/hashicorp/terraform";
generic = { version, sha256, ... }@attrs:
let attrs' = builtins.removeAttrs attrs ["version" "sha256"]; in
buildGoPackage ({
name = "terraform-${version}";
inherit goPackagePath;
src = fetchFromGitHub {
owner = "hashicorp";
repo = "terraform";
rev = "v${version}";
inherit sha256;
};
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
'';
preCheck = ''
export HOME=$TMP
'';
meta = with stdenv.lib; {
description = "Tool for building, changing, and versioning infrastructure";
homepage = https://www.terraform.io/;
license = licenses.mpl20;
maintainers = with maintainers; [ zimbatm peterhoeg kalbasit marsam ];
};
} // attrs');
pluggable = terraform:
let
withPlugins = plugins:
let
actualPlugins = plugins terraform.plugins;
# Wrap PATH of plugins propagatedBuildInputs, plugins may have runtime dependencies on external binaries
wrapperInputs = lib.unique (lib.flatten (lib.catAttrs "propagatedBuildInputs" (builtins.filter (x: x != null) actualPlugins)));
passthru = {
withPlugins = newplugins: withPlugins (x: newplugins x ++ actualPlugins);
full = withPlugins lib.attrValues;
# Ouch
overrideDerivation = f: (pluggable (terraform.overrideDerivation f)).withPlugins plugins;
overrideAttrs = f: (pluggable (terraform.overrideAttrs f)).withPlugins plugins;
override = x: (pluggable (terraform.override x)).withPlugins plugins;
};
in
# Don't bother wrapping unless we actually have plugins, since the wrapper will stop automatic downloading
# of plugins, which might be counterintuitive if someone just wants a vanilla Terraform.
if actualPlugins == []
then terraform.overrideAttrs (orig: { passthru = orig.passthru // passthru; })
else lib.appendToName "with-plugins"(stdenv.mkDerivation {
inherit (terraform) name;
buildInputs = [ makeWrapper ];
buildCommand = ''
mkdir -p $out/bin/
makeWrapper "${terraform.bin}/bin/terraform" "$out/bin/terraform" \
--set NIX_TERRAFORM_PLUGIN_DIR "${buildEnv { name = "tf-plugin-env"; paths = actualPlugins; }}/bin" \
--prefix PATH : "${lib.makeBinPath wrapperInputs}"
'';
inherit passthru;
});
in withPlugins (_: []);
plugins = removeAttrs terraform-providers ["override" "overrideDerivation" "recurseForDerivations"];
in rec {
terraform_0_11 = pluggable (generic {
version = "0.11.14";
sha256 = "1bzz5wy13gh8j47mxxp6ij6yh20xmxd9n5lidaln3mf1bil19dmc";
patches = [ ./provider-path.patch ];
passthru = { inherit plugins; };
});
terraform_0_11-full = terraform_0_11.full;
terraform_0_12 = pluggable (generic {
version = "0.12.12";
sha256 = "04qvzbm33ngkbkh45jbcv06c9s1lkgjk39sxvfxw7y6ygxzsrqq5";
patches = [ ./provider-path.patch ];
passthru = { inherit plugins; };
});
# Tests that the plugins are being used. Terraform looks at the specific
# file pattern and if the plugin is not found it will try to download it
# from the Internet. With sandboxing enable this test will fail if that is
# the case.
terraform_plugins_test = let
mainTf = writeText "main.tf" ''
resource "random_id" "test" {}
'';
terraform = terraform_0_11.withPlugins (p: [ p.random ]);
test = runCommand "terraform-plugin-test" { buildInputs = [terraform]; }
''
set -e
# make it fail outside of sandbox
export HTTP_PROXY=http://127.0.0.1:0 HTTPS_PROXY=https://127.0.0.1:0
cp ${mainTf} main.tf
terraform init
touch $out
'';
in test;
}