ELK: update kibana and the elastic beats to 5.4 (#26252)

* Add kibana5 and logstash5
* Upgrade the elastic beats to 5.4
* Make sure all elastic products use the same version
  (see elk5Version)
* Add a test for the ELK stack

pkgs/development/tools/misc/kibana/5.x.nix

@@ -0,0 +1,45 @@
+{ stdenv, makeWrapper, fetchurl, elk5Version, nodejs, coreutils, which }:
+
+with stdenv.lib;
+let
+  inherit (builtins) elemAt;
+  archOverrides = {
+    "i686" = "x86";
+  };
+  info = splitString "-" stdenv.system;
+  arch = (elemAt info 0);
+  elasticArch = archOverrides."${arch}" or arch;
+  plat = elemAt info 1;
+  shas = {
+    "x86_64-linux"  = "1g5i81wq77fk6pyaq3rpfqs2m23xsbz2cndh3rg4b59ibg5qv0sq";
+    "i686-linux"    = "0pxnpg3g8l6hy8qz404kbkk5rd9y65jrzd0y9j8wr5fd4pqs7vgv";
+    "x86_64-darwin" = "0pffl2hbck3s271jlzdibp5698djm5fdvj15w2knm815rs2kfbl5";
+  };
+in stdenv.mkDerivation rec {
+  name = "kibana-${version}";
+  version = elk5Version;
+
+  src = fetchurl {
+    url = "https://artifacts.elastic.co/downloads/kibana/${name}-${plat}-${elasticArch}.tar.gz";
+    sha256 = shas."${stdenv.system}" or (throw "Unknown architecture");
+  };
+
+  buildInputs = [ makeWrapper ];
+
+  installPhase = ''
+    mkdir -p $out/libexec/kibana $out/bin
+    mv * $out/libexec/kibana/
+    rm -r $out/libexec/kibana/node
+    makeWrapper $out/libexec/kibana/bin/kibana $out/bin/kibana \
+      --prefix PATH : "${stdenv.lib.makeBinPath [ nodejs coreutils which ]}"
+    sed -i 's@NODE=.*@NODE=${nodejs}/bin/node@' $out/libexec/kibana/bin/kibana
+  '';
+
+  meta = {
+    description = "Visualize logs and time-stamped data";
+    homepage = http://www.elasticsearch.org/overview/kibana;
+    license = licenses.asl20;
+    maintainers = with maintainers; [ offline rickynils ];
+    platforms = with platforms; unix;
+  };
+}