Deploy Spring Boot App to Render

Render.com

Render is an alternative to Heroku with a free tier. We can deploy a Spring Boot app here with a Dockerfile.

Dockerfile contents

(place at root of repo, change according to artifact name, version and jdk versions)

# # Build stage # FROM maven:3.8.3-openjdk-17 AS build COPY . . RUN mvn clean install # # Package stage # FROM eclipse-temurin:17-jdk COPY --from=build /target/demo-0.0.1-SNAPSHOT.jar demo.jar # ENV PORT=8080 EXPOSE 8080 ENTRYPOINT ["java","-jar","demo.jar"] 

Render instructions

New -> New Web Service -> Connect Github or Gitlab -> Pick Docker runtime -> Create Web Service