readme: update to v7

Signed-off-by: CrazyMax <1951866+crazy-max@users.noreply.github.com>

README.md

@@ -62,19 +62,19 @@ jobs:
     steps:
       -
         name: Login to Docker Hub
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           username: ${{ vars.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
       -
         name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
+        uses: docker/setup-qemu-action@v4
       -
         name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v4
       -
         name: Build and push
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@v7
         with:
           push: true
           tags: user/app:latest
@@ -94,7 +94,7 @@ to the default Git context:
 ```yaml
       -
         name: Build and push
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@v7
         with:
           context: "{{defaultContext}}:mysubdir"
           push: true
@@ -109,7 +109,7 @@ named `GIT_AUTH_TOKEN` to be able to authenticate against it with Buildx:
 ```yaml
       -
         name: Build and push
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@v7
         with:
           push: true
           tags: user/app:latest
@@ -131,22 +131,22 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       -
         name: Login to Docker Hub
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           username: ${{ vars.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
       -
         name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
+        uses: docker/setup-qemu-action@v4
       -
         name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v4
       -
         name: Build and push
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@v7
         with:
           context: .
           push: true

TROUBLESHOOTING.md

@@ -1,8 +1,6 @@
 # Troubleshooting
 
 * [Cannot push to a registry](#cannot-push-to-a-registry)
-  * [BuildKit container logs](#buildkit-container-logs)
-  * [With containerd](#with-containerd)
 * [`repository name must be lowercase`](#repository-name-must-be-lowercase)
 
 ## Cannot push to a registry
@@ -21,59 +19,9 @@ These issues are not directly related to this action but are rather linked to
 you're pushing your image. The quality of error message depends on the registry
 and are usually not very informative.
 
-### BuildKit container logs
-
 To help you solve this, you have to [enable debugging in the setup-buildx](https://github.com/docker/setup-buildx-action#buildkit-container-logs)
 action step and attach BuildKit container logs to your issue.
 
-### With containerd
-
-Next you can test pushing with [containerd action](https://github.com/crazy-max/ghaction-setup-containerd)
-using the following workflow. If it works then open an issue on [BuildKit](https://github.com/moby/buildkit)
-repository.
-
-```yaml
-name: containerd
-
-on:
-  push:
-
-jobs:
-  containerd:
-    runs-on: ubuntu-latest
-    steps:
-      -
-        name: Checkout
-        uses: actions/checkout@v4
-      -
-        name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
-      -
-        name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-        with:
-          buildkitd-flags: --debug
-      -
-        name: Set up containerd
-        uses: crazy-max/ghaction-setup-containerd@v2
-      -
-        name: Build Docker image
-        uses: docker/build-push-action@v6
-        with:
-          context: .
-          platforms: linux/amd64,linux/arm64
-          tags: docker.io/user/app:latest
-          outputs: type=oci,dest=/tmp/image.tar
-      -
-        name: Import image in containerd
-        run: |
-          sudo ctr i import --base-name docker.io/user/app --digests --all-platforms /tmp/image.tar
-      -
-        name: Push image with containerd
-        run: |
-          sudo ctr --debug i push --user "${{ secrets.DOCKER_USERNAME }}:${{ secrets.DOCKER_PASSWORD }}" docker.io/user/app:latest
-```
-
 ## `repository name must be lowercase`
 
 You may encounter this issue if you're using `github.repository` as a repo slug
@@ -105,15 +53,14 @@ to generate sanitized tags:
 ```yaml
 - name: Docker meta
   id: meta
-  uses: docker/metadata-action@v4
+  uses: docker/metadata-action@v6
   with:
     images: ghcr.io/${{ github.repository }}
     tags: latest
 
 - name: Build and push
-  uses: docker/build-push-action@v6
+  uses: docker/build-push-action@v7
   with:
-    context: .
     push: true
     tags: ${{ steps.meta.outputs.tags }}
 ```
@@ -122,16 +69,15 @@ Or a dedicated step to sanitize the slug:
 
 ```yaml
 - name: Sanitize repo slug
-  uses: actions/github-script@v6
+  uses: actions/github-script@v8
   id: repo_slug
   with:
     result-encoding: string
     script: return 'ghcr.io/${{ github.repository }}'.toLowerCase()
 
 - name: Build and push
-  uses: docker/build-push-action@v6
+  uses: docker/build-push-action@v7
   with:
-    context: .
     push: true
     tags: ${{ steps.repo_slug.outputs.result }}:latest
 ```