Add Windows job to GH workflows

.github/workflows/main.yml

@@ -46,6 +46,24 @@ jobs:
       run: |
         make kops examples test
 
+  build-windows-amd64:
+    runs-on: windows-2019
+    steps:
+    - name: Set up go
+      uses: actions/setup-go@v2
+      with:
+        go-version: 1.15.0-rc2
+        stable: false
+
+    - uses: actions/checkout@v2
+      with:
+        path: ${{ env.GOPATH }}/src/k8s.io/kops
+
+    - name: make kops examples test
+      working-directory: ${{ env.GOPATH }}/src/k8s.io/kops
+      run: |
+        make kops examples test-windows
+
   verify:
     runs-on: ubuntu-20.04
     steps:

Makefile

@@ -176,6 +176,10 @@ hooks: # Install Git hooks
 test: ${BINDATA_TARGETS}  # Run tests locally
 	go test -v ./...
 
+.PHONY: test-windows
+test: ${BINDATA_TARGETS}  # Run tests locally
+	go test -v $(go list ./... | grep -v /nodeup/)
+
 .PHONY: ${DIST}/linux/amd64/nodeup
 ${DIST}/linux/amd64/nodeup: ${BINDATA_TARGETS}
 	mkdir -p ${DIST}