checks/iperf: write output to $GITHUB_STEP_SUMMARY

Author: astro

.github/workflows/ci.yml

@@ -46,3 +46,6 @@ jobs:
             -vL \
             --accept-flake-config \
             ".#$NIX_ATTR"
+          if [ -e result/summary.md ]; then
+            cat result/summary.md >> $GITHUB_STEP_SUMMARY
+          fi

checks/iperf.nix

@@ -59,10 +59,19 @@ nixpkgs.lib.optionalAttrs (builtins.elem hypervisor self.lib.hypervisorsWithNetw
       };
     };
     testScript = ''
+      import os
+
       vm.wait_for_unit("microvm@${hypervisor}-iperf-server.service", timeout = 900)
       vm.succeed("ip addr add 10.0.0.2/24 dev microvm")
+
       result = vm.wait_until_succeeds("iperf -c 10.0.0.1", timeout = 180)
       print(result)
+
+      path = "{}/summary.md".format(os.environ.get("out"))
+      with open(path, 'w') as file:
+        file.write("```\n")
+        file.write(result)
+        file.write("```\n")
     '';
     meta.timeout = 1800;
   }) { inherit system; pkgs = nixpkgs.legacyPackages.${system}; };