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Dockerfile
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# To enable ssh & remote debugging on app service change the base image to the one below
FROM mcr.microsoft.com/azure-functions/dotnet:3.0-appservice
ENV AzureWebJobsScriptRoot=/home/site/wwwroot \
AzureFunctionsJobHost__Logging__Console__IsEnabled=true
# skip installing gem documentation
RUN set -eux; \
mkdir -p /usr/local/etc; \
{ \
echo 'install: --no-document'; \
echo 'update: --no-document'; \
} >> /usr/local/etc/gemrc
ENV LANG C.UTF-8
ENV RUBY_MAJOR 2.7
ENV RUBY_VERSION 2.7.2
ENV RUBY_DOWNLOAD_SHA256 1b95ab193cc8f5b5e59d2686cb3d5dcf1ddf2a86cb6950e0b4bdaae5040ec0d6
# some of ruby's build scripts are written in ruby
# we purge system ruby later to make sure our final image uses what we just built
RUN set -eux; \
\
savedAptMark="$(apt-mark showmanual)"; \
apt-get update; \
apt-get install -y --no-install-recommends \
autoconf \
build-essential \
libssl-dev \
libyaml-dev \
libreadline6-dev \
zlib1g-dev \
libncurses5-dev \
libffi-dev \
libgdbm6 \
libgdbm-dev \
libdb-dev \
bison \
dpkg-dev \
libgdbm-dev \
ruby \
; \
rm -rf /var/lib/apt/lists/*; \
\
wget -O ruby.tar.xz "https://cache.ruby-lang.org/pub/ruby/${RUBY_MAJOR%-rc}/ruby-$RUBY_VERSION.tar.xz"; \
echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
\
mkdir -p /usr/src/ruby; \
tar -xJf ruby.tar.xz -C /usr/src/ruby --strip-components=1; \
rm ruby.tar.xz; \
\
cd /usr/src/ruby; \
\
# hack in "ENABLE_PATH_CHECK" disabling to suppress:
# warning: Insecure world writable dir
{ \
echo '#define ENABLE_PATH_CHECK 0'; \
echo; \
cat file.c; \
} > file.c.new; \
mv file.c.new file.c; \
\
autoconf; \
gnuArch="$(dpkg-architecture --query DEB_BUILD_GNU_TYPE)"; \
./configure \
--build="$gnuArch" \
--disable-install-doc \
--enable-shared \
; \
make -j "$(nproc)"; \
make install; \
\
apt-mark auto '.*' > /dev/null; \
apt-mark manual $savedAptMark > /dev/null; \
find /usr/local -type f -executable -not \( -name '*tkinter*' \) -exec ldd '{}' ';' \
| awk '/=>/ { print $(NF-1) }' \
| sort -u \
| xargs -r dpkg-query --search \
| cut -d: -f1 \
| sort -u \
| xargs -r apt-mark manual \
; \
apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false; \
\
cd /; \
rm -r /usr/src/ruby; \
# verify we have no "ruby" packages installed
! dpkg -l | grep -i ruby; \
[ "$(command -v ruby)" = '/usr/local/bin/ruby' ]; \
# rough smoke test
ruby --version; \
gem --version; \
bundle --version
# don't create ".bundle" in all our apps
ENV GEM_HOME /usr/local/bundle
ENV BUNDLE_SILENCE_ROOT_WARNING=1 \
BUNDLE_APP_CONFIG="$GEM_HOME"
ENV PATH $GEM_HOME/bin:$PATH
# adjust permissions of a few directories for running "gem install" as an arbitrary user
RUN mkdir -p "$GEM_HOME" && chmod 777 "$GEM_HOME"
COPY . /home/site/wwwroot
RUN cd /home/site/wwwroot/RubyJob && bundle install