Add docker image

Thanks @verglor

Fixes #18

Author: jbarlow83

.github/workflows/publish.yml

@@ -86,4 +86,49 @@ jobs:
       run: >-
         gh release upload
         '${{ github.ref_name }}' dist/**
-        --repo '${{ github.repository }}'
+        --repo '${{ github.repository }}'
+
+  docker:
+    name: Build Ubuntu-based Docker image
+    needs: github-release
+    runs-on: ubuntu-latest
+    if: github.event_name != 'pull_request'
+    steps:
+      - name: Set image tag to release or branch
+        run: echo "DOCKER_IMAGE_TAG=${GITHUB_REF##*/}" >> $GITHUB_ENV
+
+      - name: If main, set to latest
+        run: echo 'DOCKER_IMAGE_TAG=latest' >> $GITHUB_ENV
+        if: env.DOCKER_IMAGE_TAG == 'main'
+
+      - name: Set Docker Hub repository to username
+        run: echo "DOCKER_REPOSITORY=jbarlow83" >> $GITHUB_ENV
+
+      - name: Set image name
+        run: echo "DOCKER_IMAGE_NAME=ocrmypdf-easyocr" >> $GITHUB_ENV
+
+      - uses: actions/checkout@v5
+        with:
+          fetch-depth: "0" # 0=all, needed for setuptools-scm to resolve version tags
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: jbarlow83
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Print image tag
+        run: echo "Building image ${DOCKER_REPOSITORY}/${DOCKER_IMAGE_NAME}:${DOCKER_IMAGE_TAG}"
+
+      - name: Build
+        run: |
+          docker buildx build \
+            --push \
+            --platform linux/amd64  \
+            --tag "${DOCKER_REPOSITORY}/${DOCKER_IMAGE_NAME}:${DOCKER_IMAGE_TAG}" \
+            --tag "${DOCKER_REPOSITORY}/${DOCKER_IMAGE_NAME}-ubuntu:${DOCKER_IMAGE_TAG}" \
+            --file .docker/Dockerfile .

Dockerfile

@@ -0,0 +1,16 @@
+FROM jbarlow83/ocrmypdf
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    curl git ca-certificates \
+    && rm -rf /var/lib/apt/lists/*
+
+# Seed pip into the ocrmypdf venv
+RUN set -eux; \
+    curl -fsSL https://bootstrap.pypa.io/get-pip.py -o /tmp/get-pip.py; \
+    /app/.venv/bin/python /tmp/get-pip.py; \
+    /app/.venv/bin/pip --version; \
+    rm -f /tmp/get-pip.py
+
+RUN /app/.venv/bin/pip install --no-cache-dir torch torchvision --index-url https://download.pytorch.org/whl/cu124
+
+RUN /app/.venv/bin/pip install --no-cache-dir git+https://github.com/ocrmypdf/OCRmyPDF-EasyOCR.git