Install docker inside container

.gitea/workflows/publish.yaml

@@ -8,8 +8,9 @@ jobs:
   docker:
     runs-on: ubuntu-latest
     steps:
-      -
-        name: Login to Docker Hub
+      - run: sh -c 'curl -sSL https://get.docker.com/ | sh'
+      - uses: actions/checkout@v4
+      - name: Login to Docker Hub
         uses: docker/login-action@v3
         with:
           registry: gitea.loadingm.xyz
@@ -21,24 +22,24 @@ jobs:
       # -
       #   name: Set up Docker Buildx
       #   uses: docker/setup-buildx-action@v3
-      -
-        name: Build and push
+      - name: Build and push
         uses: docker/build-push-action@v6
         with:
           push: true
           build-args: TOOLCHAIN=stable
+          file: 'rustup/Dockerfile'
           tags: gitea.loadingm.xyz/the10thwiz/rustup:stable,gitea.loadingm.xyz/the10thwiz/rustup:latest
-      -
-        name: Build and push
+      - name: Build and push
         uses: docker/build-push-action@v6
         with:
           push: true
           build-args: TOOLCHAIN=beta
+          file: '{context}/rustup/Dockerfile'
           tags: gitea.loadingm.xyz/the10thwiz/rustup:beta
-      -
-        name: Build and push
+      - name: Build and push
         uses: docker/build-push-action@v6
         with:
           push: true
           build-args: TOOLCHAIN=nightly
+          file: '{context}/rustup/Dockerfile'
           tags: gitea.loadingm.xyz/the10thwiz/rustup:nightly