cosign: init at 0.1.0

pkgs/tools/security/cosign/default.nix

@@ -0,0 +1,25 @@
+{ lib, buildGoModule, fetchFromGitHub }:
+
+buildGoModule rec {
+  pname = "cosign";
+  version = "0.1.0";
+
+  src = fetchFromGitHub {
+    owner = "sigstore";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "0rgq29vi0h378j0bqs53gjgp246rqxfpk6rwskzrmawgry0zr8pk";
+  };
+
+  vendorSha256 = "0pcp3wdvwq06ajdfbgadyq0ipfj65n276hj88p5v6wqfn821ahd6";
+
+  subPackages = [ "cmd/cosign" ];
+
+  meta = with lib; {
+    homepage = "https://github.com/sigstore/cosign";
+    changelog = "https://github.com/sigstore/cosign/releases/tag/v${version}";
+    description = "Container Signing CLI with support for ephemeral keys and Sigstore signing";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ lesuisse ];
+  };
+}