Add Dockerfile

Author: Kjuly

Dockerfile

@@ -0,0 +1,8 @@
+FROM ruby:3.3.1-alpine
+
+LABEL org.opencontainers.image.authors="dev@kjuly.com" \
+      org.opencontainers.image.licenses=MIT \
+      org.opencontainers.image.source=https://github.com/Kjuly/docker-ruby-alpine-build-base \
+      org.opencontainers.image.description="Alpine-based Ruby Docker image with build-base installed."
+
+RUN apk add --no-cache build-base