chore: Login to dockerhub before trying to push to dockerhub.

.github/settings.yml

@@ -12,7 +12,10 @@ branches:
     protection:
       required_status_checks:
         contexts:
+          - build-bootstrapd-docker
           - build-nacl
+          - build-win32
+          - build-win64
           - Codacy Static Code Analysis
           - CodeFactor
           - "ci/circleci: asan"

.github/workflows/docker.yml

@@ -7,11 +7,17 @@ on:
     branches: [master]
 
 jobs:
-  build-bootstrap-docker:
+  build-bootstrapd-docker:
     runs-on: ubuntu-latest
     steps:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v1
+      - name: Login to DockerHub
+        if: ${{ github.event_name == 'push' }}
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
       - uses: actions/checkout@v2
       - name: Docker Build
         run: .travis/tox-bootstrapd-docker local