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postal/Dockerfile
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Adam Cooke 5eeed7c023 chore(deps): upgrade to Rails 7.2.3.2, Ruby 3.4.10 and latest gems
Upgrades Rails from 7.1.6 to 7.2.3.2, Ruby from 3.4.6 to 3.4.10, and
brings the rest of the bundle up to date.

Two things were broken by Rails 7.2 and are fixed here:

* MigrationWaiter called `ActiveRecord::Base.connection.migration_context`,
  which moved to the connection pool in 7.2. This raised NoMethodError on
  boot for any deployment with `migration_waiter.enabled` set, and had no
  test covering it.
* `config.action_dispatch.show_exceptions = false` was deprecated in 7.1
  and removed in 7.2. Now `:none`.

`json` is pinned to < 3. Active Support 7.2 passes `quirks_mode:` to both
`JSON.generate` and `JSON.parse`, and json 3.0 removed that option, so an
unpinned json resolves to 3.x and makes every `to_json` raise - webhook
payloads included. Nothing else in the bundle constrains it. The pin can go
when we reach Rails 8.1, which no longer passes the option.

`dynamic_form` is dropped. It is unmaintained and from 1.3.1 requires Ruby
< 3.4, so it could never be updated again. Ten views used it, so
`error_messages_for` now lives in ErrorMessagesHelper and `f.error_messages`
in a form builder extension. The rendered markup is unchanged apart from a
heading and description the stylesheet had always hidden; the rules that
hid them are removed too.

`execjs` is unpinned. The `< 2.8` constraint dated from the Rails 6.0
upgrade and asset output is byte-identical without it.

Notable gem majors: puma 8, haml 7, secure_headers 7, sentry 7, jwt 3,
prometheus-client 5, highline 3, omniauth-rails_csrf_protection 2,
rspec-rails 8, shoulda-matchers 8, rubocop 1.91. secure_headers 7 changes
X-XSS-Protection from "1; mode=block" to "0", which is the correct modern
default and matches Rails' own.

`config.load_defaults` deliberately stays at 7.0. The pending 7.1 and 7.2
options are listed, commented out, in new_framework_defaults_7_1.rb and
_7_2.rb so they can be adopted in stages - several change the signed cookie
and cache formats and need a staged deploy. The vestigial
new_framework_defaults_7_0.rb is removed, as `load_defaults 7.0` already
applies all of it.

Adds tests for the areas this touched, which were mostly uncovered:
MigrationWaiter, the serialized columns that gate a defaults bump, JSON
encoding, HAML template compilation for all 103 templates, page rendering,
form error rendering and security headers. The assets Gemfile group now
includes :test so the view layer can be exercised at all.
2026-09-15 10:27:16 +01:00

69 lines
1.8 KiB
Docker

FROM ruby:3.4.10-slim-bookworm AS base
SHELL ["/bin/bash", "-o", "pipefail", "-c"]
RUN apt-get update \
&& apt-get install --no-install-recommends -y curl \
&& apt-get clean \
&& rm -rf /var/lib/apt/lists/*
RUN (curl -sL https://deb.nodesource.com/setup_20.x | bash -)
# Install main dependencies
RUN apt-get update && \
apt-get install -y --no-install-recommends \
build-essential \
netcat-openbsd \
libmariadb-dev \
libcap2-bin \
nano \
libyaml-dev \
nodejs \
&& apt-get clean \
&& rm -rf /var/lib/apt/lists/*
RUN setcap 'cap_net_bind_service=+ep' /usr/local/bin/ruby
# Configure 'postal' to work everywhere (when the binary exists
# later in this process)
ENV PATH="/opt/postal/app/bin:${PATH}"
# Setup an application
RUN useradd -r -d /opt/postal -m -s /bin/bash -u 999 postal
USER postal
RUN mkdir -p /opt/postal/app /opt/postal/config
WORKDIR /opt/postal/app
# Install bundler
RUN gem install bundler -v 2.7.2 --no-doc
# Install the latest and active gem dependencies and re-run
# the appropriate commands to handle installs.
COPY --chown=postal Gemfile Gemfile.lock ./
RUN bundle install
# Copy the application (and set permissions)
COPY ./docker/wait-for.sh /docker-entrypoint.sh
COPY --chown=postal . .
# Export the version
ARG VERSION
ARG BRANCH
RUN if [ "$VERSION" != "" ]; then echo $VERSION > VERSION; fi \
&& if [ "$BRANCH" != "" ]; then echo $BRANCH > BRANCH; fi
# Set paths for when running in a container
ENV POSTAL_CONFIG_FILE_PATH=/config/postal.yml
# Set the CMD
ENTRYPOINT [ "/docker-entrypoint.sh" ]
CMD ["postal"]
# ci target - use --target=ci to skip asset compilation
FROM base AS ci
# full target - default if no --target option is given
FROM base AS full
RUN RAILS_GROUPS=assets bundle exec rake assets:precompile
RUN touch /opt/postal/app/public/assets/.prebuilt