Add redis service to github actions

.github/workflows/ci.yml

@@ -9,8 +9,23 @@ on:
 jobs:
   test:
     runs-on: ubuntu-latest
+    services:
+      # Label used to access the service container
+      redis:
+        # Docker Hub image
+        image: redis
+        # Set health checks to wait until redis has started
+        options: >-
+          --health-cmd "redis-cli ping"
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
     env:
       CI: true
+      # The hostname used to communicate with the Redis service container
+      REDIS_HOST: redis
+      # The default Redis port
+      REDIS_PORT: 6379
     strategy:
       matrix:
         ruby-version: ['3.1', '3.2', '3.3']

test/simple_feature_flags/redis_storage_test.rb

@@ -30,7 +30,9 @@ def setup
       file = Tempfile.new("feature_flags_#{Time.now.to_i}")
       File.write(T.must(file.path), T.unsafe(flags).to_yaml)
 
-      redis = Redis.new(db: 14)
+      host = ENV['REDIS_HOST'] || 'localhost'
+      port = ENV['REDIS_PORT'] || '6379'
+      redis = Redis.new(host: host, port: port, db: 14)
       redis_namespaced = Redis::Namespace.new(:feature_flags, redis: redis)
 
       # clean redis before each test