도커(docker)에서 Dockerfile 만드는 방법 | KWANGSIK LEE's log

도커(docker)에서 Dockerfile 만드는 방법

2017년 2월 15일 Docker Docker, Dockerfile, 다커, 도커, 도커파일, 빌드

빌드방법

docker가 설치된 상태에서 Dockerfile이라는 이름으로 파일을 아래와 같이 만든후 아래의 명령어를 실행하면 된다.

$ docker build -t 태그명 .

샘플 Dockerfile

엘라스틱서치 5.2.0 이미지를 만드는 Dockerfile이다.

    FROM openjdk:8-jre

    # grab gosu for easy step-down from root
    ENV GOSU_VERSION 1.7
    RUN set -x \
        && wget -O /usr/local/bin/gosu "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$(dpkg --print-architecture)" \
        && wget -O /usr/local/bin/gosu.asc "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$(dpkg --print-architecture).asc" \
        && export GNUPGHOME="$(mktemp -d)" \
        && gpg --keyserver ha.pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4 \
        && gpg --batch --verify /usr/local/bin/gosu.asc /usr/local/bin/gosu \
        && rm -r "$GNUPGHOME" /usr/local/bin/gosu.asc \
        && chmod +x /usr/local/bin/gosu \
        && gosu nobody true

    RUN set -ex; \
    # https://artifacts.elastic.co/GPG-KEY-elasticsearch
        key='46095ACC8548582C1A2699A9D27D666CD88E42B4'; \
        export GNUPGHOME="$(mktemp -d)"; \
        gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$key"; \
        gpg --export "$key" > /etc/apt/trusted.gpg.d/elastic.gpg; \
        rm -r "$GNUPGHOME"; \
        apt-key list

    # https://www.elastic.co/guide/en/elasticsearch/reference/current/setup-repositories.html
    # https://www.elastic.co/guide/en/elasticsearch/reference/5.0/deb.html
    RUN set -x \
        && apt-get update && apt-get install -y --no-install-recommends apt-transport-https && rm -rf /var/lib/apt/lists/* \
        && echo 'deb https://artifacts.elastic.co/packages/5.x/apt stable main' > /etc/apt/sources.list.d/elasticsearch.list

    ENV ELASTICSEARCH_VERSION 5.2.0
    ENV ELASTICSEARCH_DEB_VERSION 5.2.0

    RUN set -x \
        \
    # don't allow the package to install its sysctl file (causes the install to fail)
    # Failed to write '262144' to '/proc/sys/vm/max_map_count': Read-only file system
        && dpkg-divert --rename /usr/lib/sysctl.d/elasticsearch.conf \
        \
        && apt-get update \
        && apt-get install -y --no-install-recommends "elasticsearch=$ELASTICSEARCH_DEB_VERSION" \
        && rm -rf /var/lib/apt/lists/*

    ENV PATH /usr/share/elasticsearch/bin:$PATH

    WORKDIR /usr/share/elasticsearch

    RUN set -ex \
        && for path in \
            ./data \
            ./logs \
            ./config \
            ./config/scripts \
        ; do \
            mkdir -p "$path"; \
            chown -R elasticsearch:elasticsearch "$path"; \
        done

    COPY config ./config

    VOLUME /usr/share/elasticsearch/data

    COPY docker-entrypoint.sh /

    EXPOSE 9200 9300
    ENTRYPOINT ["/docker-entrypoint.sh"]
    CMD ["elasticsearch"]

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