An opinionated Docker build for Txgh

Dockerfile

FROM alpine:3.3
MAINTAINER Matthew Jackowski <matthew@transifex.com>

# Update and install all of the required packages.
# At the end, remove the apk cache
RUN apk update && \
    apk upgrade && \
    apk add bash curl-dev ruby-dev build-base && \
    apk add ruby ruby-io-console ruby-bundler && \
    rm -rf /var/cache/apk/*

VOLUME /tmp/txgh
RUN mkdir /usr/app
WORKDIR /usr/app

COPY Gemfile /usr/app/
COPY Gemfile.lock /usr/app/
RUN bundle install

COPY . /usr/app

ENV RACK_ENV development
ENV GITHUB_PUSH_SOURCE_TO Transifex Project Name
ENV GITHUB_USERNAME Your github username
ENV GITHUB_TOKEN Transifex API Token
ENV GITHUB_WEBHOOK_SECRET Auth for Github Webhook
ENV GITHUB_BRANCH master
ENV TX_CONFIG_PATH /tmp/txgh/tx.config
ENV TX_USERNAME Transifex Username
ENV TX_PASSWORD Transifex Password
ENV TX_PUSH_TRANSLATIONS_TO Github Repo Name
ENV TX_WEBHOOK_SECRET Auth for Transifex Webhook

EXPOSE 9292
CMD ["puma", "-p", "9292"]

Can this container grab config from .tx/config in Git repository it is integrated with?

It will also help to rebuild image when new versions of base released to avoid security issues.