Cannot connect to the Docker daemon at unix:///var/run/docker.sock

[JuanHurn]

Describe the bug
I am attempting to build a custom Docker image and push it to a local repository. While I am able to successfully log in to the repository, I encounter an issue when I try to build and push the image. Specifically, I receive the following error:

Cannot connect to the Docker daemon at unix:///var/run/docker.sock.

To Reproduce
I am using this action file

name: Publish docker image

on:
  push:
    branches:
      - main
  workflow_dispatch:

jobs:
  push_to_registry:
    name: Push Docker image to Harbor
    runs-on: self-hosted
    environment: ${{ github.ref == 'refs/heads/main' && 'DEV' || github.ref }}

    permissions:
      packages: write
      contents: read
      attestations: write
      id-token: write

    steps:
      - name: Check out the repo
        uses: actions/checkout@v4

      - name: Get short SHA
        id: get-sha
        run: |
          SHORT_SHA=$(git rev-parse --short HEAD)
          echo "SHORT_SHA=${SHORT_SHA}" >> $GITHUB_ENV
      - name: Log in to Harbor
        uses: docker/login-action@v3
        with:
          registry: ${{ secrets.HARBOR_URL }}
          username: ${{ secrets.SVC_USERNAME }}
          password: ${{ secrets.SVC_PASSWORD }}

      - name: Build and push Docker image
        id: push
        uses: docker/build-push-action@v6
        with:
          context: .
          file: ./Dockerfile
          push: true
          tags: "folder1/image-name:${{ env.SHORT_SHA }}"

I have tried different versions of the build and push commands, as well as manually building the image using the run command, but all attempts yield the same result. It seems the issue persists regardless of the method I use.

GitHub Actions runtime token access controls
Docker info
  /usr/bin/docker version
  Client:
   Version:           27.1.1
   API version:       1.46
   Go version:        go1.21.12
   Git commit:        6312585
   Built:             Tue Jul 23 19:55:52 2024
   OS/Arch:           linux/amd64
   Context:           default
  Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

I am using the new version of the runner: actions-runner:2.320.0