switch from travis to GitHub actions

.github/workflows/go.yml

@@ -0,0 +1,78 @@
+name: GitHub Actions CI
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+
+  build:
+    name: build
+    runs-on: ubuntu-latest
+    steps:
+
+    - name: Set up Go 1.x
+      uses: actions/setup-go@v2
+      with:
+        # Run on the latest minor release of Go 1.14:
+        go-version: ^1.14
+      id: go
+
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@v2
+
+    - name: Ensure all files were formatted as per gofmt
+      run: |
+        gofmt -l $(find . -name '*.go') >/dev/null
+
+    - name: Go Vet
+      run: |
+        go vet
+
+    - name: Build
+      run: |
+        go build -v ./cmd/...
+
+  test:
+    name: test
+    runs-on: ubuntu-latest
+    steps:
+
+    - name: Set up Go 1.x
+      uses: actions/setup-go@v2
+      with:
+        # Run on the latest minor release of Go 1.14:
+        go-version: ^1.14
+      id: go
+
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@v2
+
+    - name: Test
+      run: |
+        go test -v -race ./internal/...
+
+  integrationtest:
+    name: integrationtest
+    runs-on: ubuntu-latest
+    steps:
+
+    - name: Set up Go 1.x
+      uses: actions/setup-go@v2
+      with:
+        # Run on the latest minor release of Go 1.14:
+        go-version: ^1.14
+      id: go
+
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@v2
+
+    - name: Build Docker container with the tools our tests require
+      run: |
+        docker build --pull --no-cache --rm -t=router7 -f travis/Dockerfile .
+
+    - name: Run tests in Docker container
+      run: |
+        exit=0; for pkg in $(go list ./integration/...); do go test -c $pkg && docker run --privileged --net=host -v $PWD:/usr/src:ro router7 /bin/sh -c "./$(basename $pkg).test -test.v" || exit=1; done; [ $exit = 0 ]