flannel: 0.27.4 -> 0.28.0 (#477489)

buildGoModule rec {

  pname = "flannel";

  version = "0.27.4";

  version = "0.28.0";

  rev = "v${version}";

  vendorHash = "sha256-JchHjQh1ZP6wdpgUwfNyhD93Wlf4FvCD0h4Tte47z3U=";

  vendorHash = "sha256-w3Z6iP65HASQD79lNXbVVuBbsYLfMl8dFGLzLszF+wE=";

  src = fetchFromGitHub {

    inherit rev;

    owner = "flannel-io";

    repo = "flannel";

    sha256 = "sha256-wsblDh/xAXycq85spBezGZU1vikQD5wDhtFQSrCm4SI=";

    sha256 = "sha256-h2eNdZw84YgOfPktVVZIFPGPHf4JgEFOaqt1txeLxZ0=";

  };

  ldflags = [ "-X github.com/flannel-io/flannel/pkg/version.Version=${rev}" ];