Adapt nix configs for Vagrant needs

* Remove postgres, docker, k8s, and DO requirements
 * Add ruby

.envrc

@@ -0,0 +1,5 @@
+# If we are a computer with nix-shell available, then use that to setup
+# the build environment with exactly what we need.
+if has nix-shell; then
+  use nix
+fi

.gitignore

@@ -28,6 +28,7 @@ pkg/*
 test/tmp/
 /exec
 .ruby-bundle
+vendor/bundle
 
 # Documentation
 _site/*

flake.lock

@@ -0,0 +1,43 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1634851050,
+        "narHash": "sha256-N83GlSGPJJdcqhUxSCS/WwW5pksYf3VP1M13cDRTSVA=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "c91f3de5adaf1de973b797ef7485e441a65b8935",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1636678824,
+        "narHash": "sha256-NDB9CenPn5z2xbmG/X+Mg6Jd8iUEf7dfprQfXxSD6X8=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "bf346b557b76ffce74167f37752656dede5957f3",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

nix/overlay.nix

@@ -1,7 +1,9 @@
-final: prev: {
+final: prev: rec {
   # This is the pinned protoc version we have for this project.
   protobufPin = prev.protobuf3_15;
 
+  ruby = final.ruby_2_7;
+
   devShell = final.callPackage ./vagrant.nix { };
 
   go-protobuf = prev.callPackage ./go-protobuf.nix { };

nix/vagrant.nix

@@ -3,8 +3,6 @@
 , autoconf
 , autogen
 , automake
-, docker-compose
-, doctl
 , go
 , go-bindata
 , go-changelog
@@ -13,17 +11,15 @@
 , go-protobuf-json
 , go-tools
 , grpcurl
-, kubectl
 , libpng
 , libtool
-, minikube
 , mkShell
 , nasm
 , nodejs-16_x
 , pkg-config
-, postgresql_12
 , protobufPin
 , protoc-gen-doc
+, ruby
 , zlib
 }:
 
@@ -31,13 +27,12 @@ mkShell rec {
   name = "vagrant";
 
   packages = [
-    docker-compose
     go
     go-bindata
     grpcurl
     nodejs-16_x
-    postgresql_12
     protoc-gen-doc
+    ruby
 
     # Custom packages, added to overlay
     protobufPin
@@ -47,10 +42,6 @@ mkShell rec {
     go-mockery
     go-changelog
 
-    # For testing
-    doctl
-    kubectl
-
     # Needed for website/
     autoconf
     autogen
@@ -60,9 +51,6 @@ mkShell rec {
     nasm
     pkg-config
     zlib
-  ] ++ lib.optionals stdenv.isLinux [
-    # On Linux we use minikube as the primary k8s testing platform
-    minikube
   ];
 
   # workaround for npm/gulp dep compilation
@@ -70,12 +58,4 @@ mkShell rec {
   shellHook = ''
     LD=$CC
   '';
-
-  # Extra env vars
-  PGHOST = "localhost";
-  PGPORT = "5432";
-  PGDATABASE = "noop";
-  PGUSER = "postgres";
-  PGPASSWORD = "postgres";
-  DATABASE_URL = "postgresql://${PGUSER}:${PGPASSWORD}@${PGHOST}:${PGPORT}/${PGDATABASE}?sslmode=disable";
 }

vagrant.gemspec

@@ -38,6 +38,9 @@ Gem::Specification.new do |s|
   s.add_dependency "winrm-elevated", ">= 1.2.1", "< 2.0"
   s.add_dependency "winrm-fs", ">= 1.3.4", "< 2.0"
 
+  # Needed for go generate to use grpc_tools_ruby_protoc
+  s.add_development_dependency "grpc-tools", "~> 1.41.1"
+
   # Constraint rake to properly handle deprecated method usage
   # from within rspec
   s.add_development_dependency "rake", "~> 13.0"