etcd_3_4: init at 3.4.8

https://github.com/etcd-io/etcd/blob/master/CHANGELOG-3.4.md

pkgs/servers/etcd/3.4.nix

@@ -0,0 +1,33 @@
+{ lib, buildGoModule, fetchFromGitHub }:
+
+buildGoModule rec {
+  pname = "etcd";
+  version = "3.4.8";
+
+  vendorSha256 = null;
+
+  src = fetchFromGitHub {
+    owner = "etcd-io";
+    repo = "etcd";
+    rev = "v${version}";
+    sha256 = "0kx36kq6a7i3cja3wp9mwbnar752pz8c0n2fcvwyzi6l6ph6alx7";
+  };
+
+  buildPhase = ''
+    patchShebangs .
+    ./build
+    ./functional/build
+  '';
+
+  installPhase = ''
+    install -Dm755 bin/* bin/functional/cmd/* -t $out/bin
+  '';
+
+  meta = with lib; {
+    description = "Distributed reliable key-value store for the most critical data of a distributed system";
+    license = licenses.asl20;
+    homepage = "https://etcd.io/";
+    maintainers = with maintainers; [ offline zowoq ];
+    platforms = platforms.unix;
+  };
+}

pkgs/top-level/all-packages.nix

@@ -15545,6 +15545,7 @@ in
   dspam = callPackage ../servers/mail/dspam { };
 
   etcd = callPackage ../servers/etcd { };
+  etcd_3_4 = callPackage ../servers/etcd/3.4.nix { };
 
   ejabberd = callPackage ../servers/xmpp/ejabberd { };