Deploy

Dockerfile

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+# Este Dockerfile está armado pensando en una compilación lanzada desde
+# el mismo repositorio de trabajo.  Cuando tengamos CI/CD algunas cosas
+# como el tarball van a tener que cambiar porque ya vamos a haber hecho
+# un clone/pull limpio.
+FROM alpine:3.13.5 AS build
+MAINTAINER "f <f@sutty.nl>"
+
+ARG RAILS_MASTER_KEY
+ARG BRANCH
+
+# Un entorno base
+ENV BRANCH=$BRANCH
+ENV SECRET_KEY_BASE solo_es_necesaria_para_correr_rake
+ENV RAILS_ENV production
+ENV RAILS_MASTER_KEY=$RAILS_MASTER_KEY
+
+RUN apk add --no-cache libxslt libxml2 tzdata ruby ruby-bundler ruby-json ruby-bigdecimal ruby-rake postgresql-libs
+
+RUN test "2.7.3" = `ruby -e 'puts RUBY_VERSION'`
+
+# https://github.com/rubygems/rubygems/issues/2918
+# https://gitlab.alpinelinux.org/alpine/aports/issues/10808
+RUN apk add --no-cache patch
+COPY ./rubygems-platform-musl.patch /tmp/
+RUN cd /usr/lib/ruby/2.7.0 && patch -Np 0 -i /tmp/rubygems-platform-musl.patch
+
+# Agregar el usuario
+RUN addgroup -g 82 -S www-data
+RUN adduser -s /bin/sh -G www-data -h /home/app -D app
+RUN install -dm750 -o app -g www-data /home/app/ectomobile
+RUN gem install --no-document bundler
+
+# Empezamos con la usuaria app
+USER app
+# Vamos a trabajar dentro de este directorio
+WORKDIR /home/app/ectomobile
+
+# Copiamos solo el Gemfile para poder instalar las gemas necesarias
+COPY --chown=app:www-data ./Gemfile .
+COPY --chown=app:www-data ./Gemfile.lock .
+RUN bundle config set no-cache 'true'
+RUN bundle install --path=./vendor --without='test development'
+# Vaciar la caché
+RUN rm vendor/ruby/2.7.0/cache/*.gem
+
+# Copiar el repositorio git
+COPY --chown=app:www-data ./.git/ ./.git/
+# Hacer un clon limpio del repositorio en lugar de copiar todos los
+# archivos
+RUN cd .. && git clone ectomobile checkout
+RUN cd ../checkout && git checkout $BRANCH
+
+WORKDIR /home/app/checkout
+# Traer las gemas:
+RUN rm -rf ./vendor
+RUN mv ../ectomobile/vendor ./vendor
+RUN mv ../ectomobile/.bundle ./.bundle
+
+# Instalar secretos
+COPY --chown=app:root ./config/credentials.yml.enc ./config/
+
+# Eliminar la necesidad de un runtime JS en producción, porque los
+# assets ya están pre-compilados.
+RUN sed -re "/(sassc|uglifier|bootstrap|coffee-rails)/d" -i Gemfile
+RUN bundle clean
+RUN rm -rf ./node_modules ./tmp/cache ./.git ./test ./doc
+# Eliminar archivos innecesarios
+USER root
+RUN apk add --no-cache findutils
+RUN find /home/app/checkout/vendor/ruby/2.7.0 -maxdepth 3 -type d -name test -o -name spec -o -name rubocop | xargs -r rm -rf
+
+# Contenedor final
+FROM sutty/monit:latest
+ENV RAILS_ENV production
+
+# Instalar las dependencias, separamos la librería de base de datos para
+# poder reutilizar este primer paso desde otros contenedores
+RUN apk add --no-cache libxslt libxml2 tzdata ruby ruby-bundler ruby-json ruby-bigdecimal ruby-rake ruby-irb
+RUN apk add --no-cache postgresql-libs
+
+# Chequear que la versión de ruby sea la correcta
+RUN test "2.7.3" = `ruby -e 'puts RUBY_VERSION'`
+
+# https://github.com/rubygems/rubygems/issues/2918
+# https://gitlab.alpinelinux.org/alpine/aports/issues/10808
+COPY ./rubygems-platform-musl.patch /tmp/
+RUN apk add --no-cache patch && cd /usr/lib/ruby/2.7.0 && patch -Np 0 -i /tmp/rubygems-platform-musl.patch && apk del patch
+
+# Instalar foreman para poder correr los servicios
+RUN gem install --no-document --no-user-install bundler foreman
+
+# Agregar el grupo del servidor web y la usuaria
+RUN addgroup -g 82 -S www-data
+RUN adduser -s /bin/sh -G www-data -h /srv/http -D app
+
+# Convertirse en app para instalar
+USER app
+COPY --from=build --chown=app:www-data /home/app/checkout /srv/http
+COPY --chown=app:www-data ./.git/ ./.git/
+
+# Volver a root para cerrar la compilación
+USER root
+# Instalar la configuración de monit
+RUN install -m 640 -o root -g root /srv/http/monit.conf /etc/monit.d/ectomobile.conf
+RUN apk add --no-cache daemonize ruby-webrick
+RUN install -m 755 /srv/http/entrypoint.sh /usr/local/bin/ectomobile
+
+# El puerto de puma
+EXPOSE 3000
+EXPOSE 9394

Procfile

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+migrate: bundle exec rake db:prepare db:seed
+ectomobile: bundle exec puma config.ru
+blazer_5m: bundle exec rake blazer:run_checks SCHEDULE="5 minutes"
+blazer_1h: bundle exec rake blazer:run_checks SCHEDULE="1 hour"
+blazer_1d: bundle exec rake blazer:run_checks SCHEDULE="1 day"
+blazer: bundle exec rake blazer:send_failing_checks

entrypoint.sh

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+#!/bin/sh
+set -e
+
+case $1 in
+  start)
+    su app -c "cd /srv/http && foreman start migrate"
+    daemonize -c /srv/http -u app /usr/bin/foreman start ectomobile
+    ;;
+  stop) cat /srv/http/tmp/pids/server.pid | xargs kill ;;
+  blazer*) cd /srv/http && foreman start $1 ;;
+esac

monit.conf

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+check process ectomobile with pidfile /srv/http/tmp/pids/server.pid
+  start program = "/usr/local/bin/ectomobile start"
+  stop program = "/usr/local/bin/ectomobile stop"
+
+check program blazer_5m
+  with path "/usr/local/bin/ectomobile blazer_5m"
+    as uid "app" and gid "www-data"
+  every 5 cycles
+  if status != 0 then alert
+
+check program blazer_1h
+  with path "/usr/local/bin/ectomobile blazer_1h"
+    as uid "app" and gid "www-data"
+  every 60 cycles
+  if status != 0 then alert
+
+check program blazer_1d
+  with path "/usr/local/bin/ectomobile blazer_1d"
+    as uid "app" and gid "www-data"
+  every 1440 cycles
+  if status != 0 then alert
+
+check program blazer
+  with path "/usr/local/bin/ectomobile blazer"
+    as uid "app" and gid "www-data"
+  every 61 cycles
+  if status != 0 then alert

rubygems-platform-musl.patch

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+--- rubygems.rb.orig
++++ rubygems.rb
+@@ -764,10 +764,7 @@
+   def self.platforms
+     @platforms ||= []
+     if @platforms.empty?
+-      # XXX: Patched to avoid installing platform-specific gems with binaries
+-      # linked against glibc.
+-      @platforms = [Gem::Platform::RUBY]
+-      #@platforms = [Gem::Platform::RUBY, Gem::Platform.local]
++      @platforms = [Gem::Platform::RUBY, Gem::Platform.local]
+     end
+     @platforms
+   end