Add cardano-node-8.9.1-aarch64-linux.tar.gz for E2E tests

Author: michalrus

native-arm/cardano-node-8.9.1--expose-projectExes.patch

@@ -0,0 +1,13 @@
+diff --git a/flake.nix b/flake.nix
+index 0804d9ff3..64362d27d 100644
+--- a/flake.nix
++++ b/flake.nix
+@@ -305,6 +305,8 @@
+                   internal.roots.project = windowsProject.roots;
+                   variants = mapAttrs (_: v: removeAttrs v.windows ["variants"]) ciJobsVariants;
+                 });
++            } // optionalAttrs (system == "aarch64-linux") {
++              linux-arm64.projectExes = collectExes project;
+             } // optionalAttrs (system == "x86_64-darwin") {
+               native = lib.filterAttrs
+                 (n: _:

native-arm/flake.nix

@@ -556,6 +556,10 @@
             original = inputs.${input};
             supportedSystemsPath = "nix/supported-systems.nix";
             extraPatch = ''
+              (
+                cd $out
+                patch -p1 -i ${./cardano-node-8.9.1--expose-projectExes.patch}
+              )
               sed -r '
                 s/"ghc8107"/"ghc963"/g
                 s/"-fexternal-interpreter"//g
@@ -569,6 +573,27 @@
         # { name = "${input}--cardano-submit-api"; value = theFlake.packages.${system}.cardano-submit-api; }
         { name = "${input}--oci"; value = retagOCI "cardano-node" version theFlake.legacyPackages.${system}.dockerImage; }
         { name = "${input}--oci-submit-api"; value = retagOCI "cardano-submit-api" version theFlake.legacyPackages.${system}.submitApiDockerImage; }
+        {
+          name = "${input}--tar";
+          value = let
+            pkgs = theFlake.inputs.nixpkgs.legacyPackages.${system};
+            nix-bundle-exe-with-symlinks = pkgs.runCommand "nix-bundle-exe-with-symlinks" {} ''
+              cp -r ${inputs.nix-bundle-exe} $out
+              chmod -R +w $out
+              sed -r "s/find '/find -L '/g" -i $out/default.nix
+            '';
+            nix-bundle-exe = import nix-bundle-exe-with-symlinks { pkgs = pkgs; };
+            allExes = pkgs.buildEnv {
+              name = "cardano-tools";
+              paths = builtins.attrValues theFlake.hydraJobs.${system}.linux-arm64.projectExes;
+              pathsToLink = ["/bin"];
+            };
+            bundle = nix-bundle-exe allExes;
+          in pkgs.runCommand "${bundle.name}-tar" {} ''
+            mkdir -p $out
+            tar -czvf $out/cardano-node-${version}-${system}.tar.gz -C ${bundle} .
+          '';
+        }
       ])
 
     );