use github actions cache (#567)

Author: bwagner5

.github/workflows/ci.yml

@@ -23,6 +23,15 @@ jobs:
     - name: Check out code into the Go module directory
       uses: actions/checkout@v2
 
+    - name: Restore go mod cache
+      uses: actions/cache@v2
+      with:
+        path: |
+          ~/.cache/go-build
+          ~/go/pkg/mod
+          ~/go/bin/
+        key: gocache
+
     - name: Unit Tests
       run: make unit-test
 
@@ -52,6 +61,16 @@ jobs:
 
     - name: Check out code into the Go module directory
       uses: actions/checkout@v2
+
+    - name: Restore go mod cache
+      uses: actions/cache@v2
+      with:
+        path: |
+          ~/.cache/go-build
+          ~/go/pkg/mod
+          ~/go/bin/
+        key: gocache
+
     - name: Build Linux Binaries
       run: make build-binaries
 
@@ -65,6 +84,15 @@ jobs:
       with:
         go-version: ${{ env.DEFAULT_GO_VERSION }}
 
+    - name: Restore go mod cache
+      uses: actions/cache@v2
+      with:
+        path: |
+          ~/.cache/go-build
+          ~/go/pkg/mod
+          ~/go/bin/
+        key: gocache
+
     - name: Check out code into the Go module directory
       uses: actions/checkout@v2
 
@@ -84,6 +112,15 @@ jobs:
     - name: Check out code into the Go module directory
       uses: actions/checkout@v2
 
+    - name: Restore go mod cache
+      uses: actions/cache@v2
+      with:
+        path: |
+          ~/.cache/go-build
+          ~/go/pkg/mod
+          ~/go/bin/
+        key: gocache
+
     - name: Build Windows Binaries
       run: choco install make && choco install zip && RefreshEnv.cmd && make build-binaries-windows
 
@@ -100,6 +137,15 @@ jobs:
     - name: Check out code into the Go module directory
       uses: actions/checkout@v2
 
+    - name: Restore go mod cache
+      uses: actions/cache@v2
+      with:
+        path: |
+          ~/.cache/go-build
+          ~/go/pkg/mod
+          ~/go/bin/
+        key: gocache
+
     - name: Build Windows Docker Images
       run: choco install make && RefreshEnv.cmd && make build-docker-images-windows
 
@@ -119,6 +165,15 @@ jobs:
     - name: Check out code into the Go module directory
       uses: actions/checkout@v2
 
+    - name: Restore go mod cache
+      uses: actions/cache@v2
+      with:
+        path: |
+          ~/.cache/go-build
+          ~/go/pkg/mod
+          ~/go/bin/
+        key: gocache
+
     - name: E2E Tests
       run: test/k8s-local-cluster-test/run-test -v ${{ matrix.k8sVersion }}