Render is using ENTRYPOINT now

bin/docker-entrypoint-production

@@ -9,4 +9,8 @@ echo "${*}"
 #   ./bin/rails db:prepare
 # fi
 
+# Run database migrations when deploying to Render. It is not great, maybe there's a better way?
+# https://community.render.com/t/release-command-for-db-migrations/247/6
+if [ -z "$RENDER" ]; then echo "var is unset"; else bin/rails db:migrate; fi
+
 exec "${@}"

production.Dockerfile

@@ -75,13 +75,6 @@ RUN useradd rails --create-home --shell /bin/bash && \
     chown -R rails:rails db log storage tmp
 USER rails:rails
 
-# Run database migrations when deploying to Render. It is not great, maybe there's a better way?
-# https://community.render.com/t/release-command-for-db-migrations/247/6
-ARG RENDER
-ARG DATABASE_URL
-ARG SECRET_KEY_BASE
-RUN if [ -z "$RENDER" ]; then echo "var is unset"; else bin/rails db:migrate; fi
-
 # Entrypoint prepares the database.
 ENTRYPOINT ["/rails/bin/docker-entrypoint-production"]