feat(3p/terraform-provider-glesys): init at v0.3.1

Change-Id: I1c7e398dca824a8606461ac8274f74cbb0764941
Reviewed-on: https://cl.tvl.fyi/c/depot/+/4560
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
Reviewed-by: Profpatsch <mail@profpatsch.de>
Autosubmit: tazjin <mail@tazj.in>

third_party/terraform-provider-glesys/default.nix

@@ -0,0 +1,23 @@
+# GleSYS Terraform provider
+#
+# Some TVL resources (DNS, object storage, ...) are hosted with them.
+{ pkgs, ... }:
+
+pkgs.buildGoModule rec {
+  pname = "terraform-provider-glesys";
+  version = "0.3.1";
+
+  src = pkgs.fetchFromGitHub {
+    owner = "glesys";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "1rcwzf31gdxjywkcnlq1nxv4y8fcrc2z2xrp73q61mglv01bqq8m";
+  };
+
+  vendorSha256 = "0g5g69absf0vmin0ff0anrxcgfq0bzx4iz3qci90p9xkvyph4nlw";
+  postInstall = "mv $out/bin/${pname}{,_v${version}}";
+
+  # This provider is not officially published in the TF registry, so
+  # we're giving it a fake source here.
+  passthru.provider-source-address = "registry.terraform.io/depot/glesys";
+}