feat: add new GitHub action workflow

Author: maxday

.github/workflows/dockerized-test.yml

@@ -0,0 +1,25 @@
+name: dockerized-test
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ '*' ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        ruby_version: ['3.1', '3.2', '3.3']
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up ruby
+      uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: ${{ matrix.ruby_version }}
+    - name: Build the lib
+      run: make build
+    - name: Build the image
+      run: docker build . -t local/test -f Dockerfile.test --build-arg BASE_IMAGE=public.ecr.aws/lambda/ruby:${{ matrix.ruby_version }}

Dockerfile.test

@@ -1,4 +1,5 @@
-FROM public.ecr.aws/lambda/ruby:3.3
+ARG BASE_IMAGE
+FROM $BASE_IMAGE
 ENV GEM_HOME=/var/runtime
 RUN gem uninstall aws_lambda_ric --executables
 ADD pkg /tmp/pkg