Add Decidim.

decidim/Dockerfile

@@ -0,0 +1,25 @@
+# Build Decidim with Sidekiq support
+FROM decidim/decidim:0.31.0
+
+# Switch to root to install dependencies
+USER root
+
+# Add sidekiq to Gemfile
+RUN cd /code && \
+    echo "" >> Gemfile && \
+    echo "# Background job processing" >> Gemfile && \
+    echo "gem 'sidekiq', '~> 6.5'" >> Gemfile && \
+    bundle install
+
+# Configure Rails to use Sidekiq as ActiveJob backend
+RUN cd /code && \
+    test -d config/initializers || mkdir -p config/initializers && \
+    echo "Rails.application.config.active_job.queue_adapter = :sidekiq" > config/initializers/active_job.rb && \
+    cat config/initializers/active_job.rb && \
+    ls -la config/initializers/
+
+# Switch back to decidim user
+USER decidim
+
+# Default command (can be overridden)
+CMD ["bundle", "exec", "rails", "s", "-b", "0.0.0.0"]