Add docker tests to spectests matrix

.ci/spec/run-test.sh

@@ -19,6 +19,8 @@ export PKT_VAGRANT_GUEST_BOXES="${VAGRANT_GUEST_BOXES}"
 export PKT_VAGRANT_HOST_MEMORY="${VAGRANT_HOST_MEMORY:-10000}"
 export PKT_VAGRANT_CWD="test/vagrant-spec/"
 export PKT_VAGRANT_VAGRANTFILE=Vagrantfile.spec
+export PKT_VAGRANT_PROVIDERS="${VAGRANT_SPEC_PROVIDERS}"
+export PKT_VAGRANT_DOCKER_IMAGES="${VAGRANT_DOCKER_IMAGES}"
 ###
 # Run the job
 

.github/workflows/spectesting.yml

@@ -26,6 +26,7 @@ jobs:
       matrix:
         host_os: ['hashicorp/bionic64']
         guest_os: ['hashicorp-vagrant/ubuntu-16.04']
+        docker_images: ['nginx']
     steps:
       - name: Code Checkout
         uses: actions/checkout@v1
@@ -36,7 +37,9 @@ jobs:
           VAGRANT_HOST_BOXES: ${{matrix.host_os}}
           VAGRANT_GUEST_BOXES: ${{matrix.guest_os}}
           VAGRANT_PRERELEASE_VERSION: ${{ github.event.client_payload.prerelease_version }}
-
+          VAGRANT_SPEC_PROVIDERS: 'virtualbox,docker'
+          VAGRANT_DOCKER_IMAGES: ${{matrix.docker_images}}
+  
   spec-tests:
     if: github.repository == 'hashicorp/vagrant-blackbox'
     runs-on: self-hosted
@@ -46,6 +49,7 @@ jobs:
       matrix:
         host_os: ['hashicorp/bionic64']
         guest_os: ['hashicorp-vagrant/ubuntu-16.04']
+        docker_images: ['nginx']
     steps:
       - name: Run Tests with host ${{ matrix.host_os }} using guest ${{ matrix.guest_os }}
         run: ./.ci/spec/run-test.sh
@@ -53,6 +57,8 @@ jobs:
         env:
           VAGRANT_HOST_BOXES: ${{matrix.host_os}}
           VAGRANT_GUEST_BOXES: ${{matrix.guest_os}}
+          VAGRANT_SPEC_PROVIDERS: 'virtualbox,docker'
+          VAGRANT_DOCKER_IMAGES: ${{matrix.docker_images}}
 
   cleanup:
     if: github.repository == 'hashicorp/vagrant-blackbox'