push to docker

Author: zardus

.github/workflows/nightly-build.yml

@@ -30,7 +30,11 @@ jobs:
     steps:
     - uses: actions/checkout@master
     - uses: docker/setup-buildx-action@master
+    - uses: docker/login-action@v1
+      with:
+        username: ${{ secrets.DOCKERHUB_USERNAME }}
+        password: ${{ secrets.DOCKERHUB_TOKEN }}
     - name: Build Tool
       run: |
-        NAME=$(echo ${{ matrix.tool }} | tr -cd '0-9A-Za-z-')
+        NAME=$(echo ${{ matrix.tool }} | tr -cd '0-9A-Za-z-_')
         docker build -t ctftools/$NAME --build-arg PREINSTALL="${{ matrix.tool }}" .