Move default build to Ruby 3.3, test only MySQL for Rubies 3.1 & 3.2 …

…(middle versions)

.github/workflows/continuous-integration.yml

@@ -9,6 +9,10 @@ jobs:
         ruby: ["3.0", "3.1", "3.2", "3.3"]
         db: [sqlite, mysql, postgres]
         exclude:
+          - ruby: "3.1"
+            db: sqlite
+          - ruby: "3.1"
+            db: postgres
           - ruby: "3.2"
             db: sqlite
           - ruby: "3.2"

Dockerfile

@@ -1,4 +1,4 @@
-FROM ruby:3.1
+FROM ruby:3.3
 
 # throw errors if Gemfile has been modified since Gemfile.lock
 RUN bundle config --global frozen 1
@@ -8,7 +8,7 @@ WORKDIR /app
 RUN touch /etc/app-env
 
 COPY Gemfile* /app/
-RUN gem install bundler -v 2.4.22
+RUN gem install bundler
 RUN bundle install --jobs 4
 
 RUN curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add -

Dockerfile-3.3 → Dockerfile-3.1

@@ -1,4 +1,4 @@
-FROM ruby:3.2
+FROM ruby:3.1
 
 # throw errors if Gemfile has been modified since Gemfile.lock
 RUN bundle config --global frozen 1

test-envs/docker-compose-3.1-mysql.yml

@@ -10,7 +10,7 @@ services:
   web:
     build:
       context: ..
-      dockerfile: Dockerfile
+      dockerfile: Dockerfile-3.1
     environment:
       # These are set in script/ci-build, so we need to pass-thru them.
       RAILS_ENV: $RAILS_ENV