Ruby-alpine.Dockerfile 687 Bytes
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FROM ruby:2.5-alpine
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# Edit with nodejs, mysql-client, postgresql-client, sqlite3, etc. for your needs.
# Or delete entirely if not needed.
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RUN apk --no-cache add nodejs postgresql-client tzdata
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# throw errors if Gemfile has been modified since Gemfile.lock
RUN bundle config --global frozen 1

WORKDIR /usr/src/app

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COPY Gemfile Gemfile.lock .
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# Install build dependencies - required for gems with native dependencies
RUN apk add --no-cache --virtual build-deps build-base postgresql-dev && \
  bundle install && \
  apk del build-deps
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COPY . .
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# For Sinatra
#EXPOSE 4567
#CMD ["ruby", "./config.rb"]

# For Rails
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ENV PORT 3000
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EXPOSE 3000
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CMD ["bundle", "exec", "rails", "server"]