add Dockerfile

Dockerfile

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+FROM ubuntu:latest AS builder
+WORKDIR /app
+ENV DEBIAN_FRONTEND noninteractive
+ARG JPP_VERSION=2.0.0-rc3
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    build-essential gcc g++ make cmake libprotobuf-dev wget ca-certificates \
+    zlib1g-dev libtool automake autoconf git unzip
+
+# Build and install Juman++
+RUN wget https://github.com/ku-nlp/jumanpp/releases/download/v${JPP_VERSION}/jumanpp-${JPP_VERSION}.tar.xz -qO - \
+    | tar Jxvf - \
+    && cd jumanpp-${JPP_VERSION} \
+    && mkdir bld \
+    && cd bld \
+    && cmake .. -DCMAKE_BUILD_TYPE=Release \
+    && make -j "$(nproc)" \
+    && make install
+
+# Build and install KNP
+RUN git clone --depth 1 https://github.com/ku-nlp/knp.git \
+    && cd knp \
+    && ./autogen.sh \
+    && wget -q http://lotus.kuee.kyoto-u.ac.jp/nl-resource/knp/dict/latest/knp-dict-latest-bin.zip \
+    && unzip knp-dict-latest-bin.zip \
+    && cp -ars $(pwd)/dict-bin/* ./dict \
+    && ./configure \
+    && make -j "$(nproc)" \
+    && make install
+
+FROM ubuntu:latest AS runner
+
+# Configure Japanese locale
+RUN apt-get update \
+    && apt-get install -y locales \
+    && locale-gen ja_JP.UTF-8
+ENV LANG="ja_JP.UTF-8" \
+    LANGUAGE="en_US" \
+    LC_ALL="ja_JP.UTF-8"
+RUN localedef -f UTF-8 -i ja_JP ja_JP.utf8
+
+COPY --from=builder /usr/local /usr/local
+
+CMD /bin/bash