using ruby3.3-slim for image, updated README, using app name for serv…

.ruby-version

@@ -1 +1 @@
-3.1.7
+~> 3.3

Dockerfile

@@ -1,22 +1,58 @@
-FROM registry.access.redhat.com/ubi8/ruby-31
+FROM ruby:3.3-slim AS base
 USER root
 
 # Configure users and groups
 RUN groupadd -g 40054 alma && \
     useradd -r -s /sbin/nologin -M -u 40054 -g alma alma && \
+    useradd -u 40061 bfs && \
     groupadd -g 40061 bfs && \
     usermod -u 40061 -g bfs -G alma -l bfs default && \
     find / -user 1001 -exec chown -h bfs {} \; || true && \
     mkdir -p /opt/app && \
     chown -R bfs:bfs /opt/app
 
+# Get list of available packages
+RUN apt-get -y update -qq
+
+COPY --chown=bfs . /opt/app
+
+ENTRYPOINT ["/opt/app/bin/bfs"]
+CMD ["help"]
+
+# ===============================================
+# Target: development
+# ===============================================
+
+FROM base AS development
+
+USER root
+
+RUN apt-get -y --no-install-recommends install \
+    build-essential \
+    make
+
+USER bfs
+
+# Base image ships with an older version of bundler
+RUN gem install bundler --version 2.5.22
+
 WORKDIR /opt/app
 COPY --chown=bfs Gemfile* .ruby-version ./
 RUN bundle config set force_ruby_platform true
 RUN bundle config set system 'true'
 RUN bundle install
-COPY --chown=bfs . .
 
-USER bfs
-ENTRYPOINT ["/opt/app/bin/bfs"]
-CMD ["help"]
+# COPY --chown=bfs:bfs . .
+
+# =================================
+# Target: production
+# =================================
+FROM base AS production
+
+# Copy the built codebase from the dev stage
+# COPY --from=development --chown=bfs /opt/app /opt/app
+COPY --from=development --chown=bfs /usr/local/bundle /usr/local/bundle
+
+WORKDIR /opt/app
+RUN bundle config set frozen 'true'
+RUN bundle install --local

Gemfile

@@ -13,5 +13,3 @@ gem 'net-ssh', '~> 7.1.0'
 gem 'nokogiri', '~> 1.15.0'
 gem 'rspec'
 gem 'thor', '~> 1.1'
-
-

README.md

@@ -13,13 +13,13 @@ docker compose build
 View the CLI tool help/description:
 
 ```sh
-docker compose run --rm bfs help
+docker compose run --rm app help
 ```
 
 Adds test data to the default watch directory:
 
 ```sh
-docker compose run --rm bfs seed
+docker compose run --rm app seed
 ```
 
 Run the app in the background. It will continue running, monitoring for .xml files to process every 10s.
@@ -32,19 +32,19 @@ docker compose logs -f # view processing logs in real time
 Watch a non-standard directory:
 
 ```sh
-docker compose run --rm bfs watch /path/in/container # absolute path
-docker compose run --rm bfs watch data/somedir # path relative to /opt/app-root/src
+docker compose run --rm app watch /path/in/container # absolute path
+docker compose run --rm app watch data/somedir # path relative to /opt/app
 ```
 
 Process a specific file:
 
 ```sh
-docker compose run --rm bfs process /abs/path/to/myfile.xml # absolute path
-docker compose run --rm bfs process data/invoicing/pay/somefile.xml # relative path
+docker compose run --rm app process /abs/path/to/myfile.xml # absolute path
+docker compose run --rm app process data/invoicing/pay/somefile.xml # relative path
 ```
 
 Delete previously processed files and error logs:
 
 ```sh
-docker compose run --rm bfs clear
+docker compose run --rm app clear
 ```

docker-compose.yml

@@ -1,6 +1,8 @@
 services:
   app:
-    build: .
+    build:
+      context: .
+      target: development 
     command: watch --interval 10
     init: true 
     environment: