add docker

Dockerfile

@@ -1,12 +1,20 @@
 FROM ocrd/core:v2.62.0 AS base
+ARG VCS_REF
+ARG BUILD_DATE
+LABEL \
+    maintainer="https://github.com/OCR-D/ocrd_segment/issues" \
+    org.label-schema.vcs-ref=$VCS_REF \
+    org.label-schema.vcs-url="https://github.com/OCR-D/ocrd_segment" \
+    org.label-schema.build-date=$BUILD_DATE
 
-WORKDIR /build-ocrd_segment
+WORKDIR /build
 COPY setup.py .
 COPY ocrd_segment/ocrd-tool.json .
 COPY ocrd_segment ./ocrd_segment
 COPY requirements.txt .
 COPY README.md .
-RUN pip install . \
-	&& rm -rf /build-ocrd_segment
+RUN pip install .
+RUN rm -rf /build
 
 WORKDIR /data
+VOLUME ["/data"]

Makefile

@@ -0,0 +1,41 @@
+SHELL = /bin/bash
+PYTHON ?= python
+PIP ?= pip
+TAG ?= ocrd/segment
+
+# BEGIN-EVAL makefile-parser --make-help Makefile
+
+help:
+	@echo ""
+	@echo "  Targets"
+	@echo ""
+	@echo "    deps     (install required Python packages)"
+	@echo "    install  (install this Python package)"
+	@echo "    docker   (build Docker image)"
+	@echo ""
+
+# END-EVAL
+
+# (install required Python packages)
+deps:
+	$(PIP) install -r requirements.txt
+
+#deps-test:
+#	$(PIP) install -r requirements_test.txt
+
+# Dependencies for deployment in an ubuntu/debian linux
+# deps-ubuntu:
+# 	sudo apt-get install -y \
+# 		...
+
+# (install this Python package)
+install: deps
+	$(PIP) install .
+
+docker:
+	docker build \
+	-t $(TAG) \
+	--build-arg VCS_REF=$(git rev-parse --short HEAD) \
+	--build-arg BUILD_DATE=$(date -u +"%Y-%m-%dT%H:%M:%SZ") .
+
+.PHONY: help deps install docker # deps-test test