はじめてのdocker+cli+Kotlin~南ことりの画像を収集~

FROM openjdk:8-jdk-alpine
RUN apk update \
    && apk upgrade \
    && apk add coreutils curl   


ARG BUILD_DATE
ARG VCS_REF

# Set Appropriate Environmental Variables
ENV GRADLE_HOME /usr/lib/gradle
ENV GRADLE_VERSION 4.7
ENV GRADLE_FOLDER=/root/.gradle

ARG GRADLE_DOWNLOAD_SHA256=fca5087dc8b50c64655c000989635664a73b11b9bd3703c7d6cabd31b7dcdb04
RUN set -o errexit -o nounset \
    && echo "Installing build dependencies" \
    && apk add --no-cache --virtual .build-deps \
        ca-certificates \
        openssl \
        unzip \
    \
    && echo "Downloading Gradle" \
    && wget -O gradle.zip "https://services.gradle.org/distributions/gradle-${GRADLE_VERSION}-bin.zip" \
    \
    && echo "Checking download hash" \
    && echo "${GRADLE_DOWNLOAD_SHA256} *gradle.zip" | sha256sum -c - \
    \
    && echo "Installing Gradle" \
    && unzip gradle.zip \
    && rm gradle.zip \
    && mkdir /opt \
    && mv "gradle-${GRADLE_VERSION}" "${GRADLE_HOME}/" \
    && ln -s "${GRADLE_HOME}/bin/gradle" /usr/bin/gradle \
    \
    && apk del .build-deps \
    \
    && echo "Adding gradle user and group" \
    && addgroup -S -g 1000 gradle \
    && adduser -D -S -G gradle -u 1000 -s /bin/ash gradle \
    && mkdir /home/gradle/.gradle \
    && chown -R gradle:gradle /home/gradle \
    \
    && echo "Symlinking root Gradle cache to gradle Gradle cache" \
    && ln -s /home/gradle/.gradle /root/.gradle

LABEL org.label-schema.build-date=$BUILD_DATE \
      org.label-schema.description="Kotlin docker images built upon official openjdk alpine images" \
      org.label-schema.name="alpine-kotlin" \
      org.label-schema.schema-version="1.0.0-rc1" \
      org.label-schema.usage="https://github.com/Zenika/alpine-kotlin/blob/master/README.md" \
      org.label-schema.vcs-url="https://github.com/Zenika/alpine-kotlin" \
      org.label-schema.vcs-ref=$VCS_REF \
      org.label-schema.vendor="Zenika" \
      org.label-schema.version="1.2-jdk8"

RUN apk add --no-cache bash && \
    apk add --no-cache -t build-dependencies wget && \
    cd /usr/lib && \
    wget https://github.com/JetBrains/kotlin/releases/download/v1.2.41/kotlin-compiler-1.2.41.zip && \
    unzip kotlin-compiler-*.zip && \
    rm kotlin-compiler-*.zip && \
    rm kotlinc/bin/*.bat && \
    apk del --no-cache build-dependencies

ENV PATH $PATH:/usr/lib/kotlinc/bin


RUN apk del coreutils curl
# コンテナのワークディレクトリの指定
WORKDIR /app
CMD ["kotlinc"]



VOLUME  $GRADLE_FOLDER

version: '2'

services:

  kotlin:
    build: .
    command: bash -c "gradle run"
    volumes:
    - .:/app

build.gradle

apply plugin: 'kotlin'
apply plugin: 'application'
mainClassName = "ScrapingKt"
buildscript {
    ext.kotlin_version = '1.2.41'
    repositories {
        jcenter()
        mavenCentral()
    }
    dependencies {
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }
}
dependencies {
    compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
    compile "org.jsoup:jsoup:1.10.3"
    compile "org.apache.httpcomponents:httpclient:4.5"
}
allprojects {
    repositories {
        jcenter()
    }
}

import org.jsoup.Jsoup

//Jsoupが使えているかのテスト。引数とかはまだ特に関係ない。
class Hoge(val url: String) {
    fun test() {
        val doc = org.jsoup.Jsoup.parse("<div id='a'>aiueo</div><div id='b'>bbb</div>")
        println(doc.select("#a"))
    }
}


fun main(args: Array<String>) {
    val foo = Hoge("test")
    foo.test()

}