FROM ruby:2.6.3-alpine3.10
MAINTAINER GitLab Documentation Team

ENV NODE_VERSION="12.11.0"
ENV NODE_ARCHIVE_FILE="node-v${NODE_VERSION}-linux-x64.tar.xz"
ENV NODE_URL="https://nodejs.org/dist/v${NODE_VERSION}/${NODE_ARCHIVE_FILE}"

ENV YARN_VERSION="1.19.0"
ENV YARN_ARCHIVE_FILE="yarn-v${YARN_VERSION}.tar.gz"
ENV YARN_URL="https://yarnpkg.com/downloads/${YARN_VERSION}/${YARN_ARCHIVE_FILE}"

# Install dependencies
RUN apk --no-cache add -U openssl tar gzip xz gnupg bash \
  && mkdir -p /opt

# Install NodeJS
RUN mkdir -p /usr/local/lib/nodejs \
  && wget "${NODE_URL}" \
  && tar -xvf "${NODE_ARCHIVE_FILE}" -C /usr/local/lib/nodejs

# Install Yarn
RUN wget "${YARN_URL}" \
  && wget -qO- https://dl.yarnpkg.com/debian/pubkey.gpg | gpg --import \
  && wget "${YARN_URL}".asc \
  && gpg --verify "${YARN_ARCHIVE_FILE}".asc \
  && tar zvxf "${YARN_ARCHIVE_FILE}"