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What it is
A Java web application (Maven-based, with both a plain Java app and a Servlet/JSP webapp structure) built, packaged into a WAR/JAR, and containerized for deployment.
What I built
Set up the project structure with Maven (pom.xml, src/main/java, src/main/webapp) — including a servlet-based structure (HelloServlet.java, index.jsp, web.xml) generated in one version, and a standalone Spring Boot app scaffolded via Spring Initializr in another
Ran mvn package to build the application — confirmed a clean BUILD SUCCESS, producing a deployable WAR file
Wrote a Dockerfile to containerize the app on top of a Tomcat base image
Built the Docker image (docker-java-webapp:v1) and verified it locally — confirmed the container was running and mapped to port 8080 (docker ps showing the container Up and healthy)
Tagged and pushed the image to Docker Hub (mnqw1209/java-docker-app:v1) so it could be pulled and deployed from anywhere — including by my separate deployment automation script
Result
Verified with docker images and docker ps that the image built correctly and the container ran successfully on the expected port. Pushed all image layers to Docker Hub successfully, confirmed by the registry digest.
Why it matters
This is the "build and publish" half of a full CI/CD-style workflow: the app is built once, containerized, and pushed to a registry — after which any server can pull and run it consistently, which is exactly what my [[server automation project]] does on the deployment side. Together they form a complete build → publish → deploy pipeline.
Tech stack
Java · Maven · Spring Boot · Docker · Docker Hub · Tomcat
The network for creativity
Join 1.25M professional creatives like you
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Creatives on Contra have earned over $150M and we are just getting started
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Deployment & Publishing: From Development to Production
Building a great application is only part of the journey—the real challenge begins when it's time to deploy and publish it for real users. During this project, I focused on taking a full-stack application from a local development environment to a secure, scalable production environment.
Like many developers, I encountered several production-specific issues that didn't appear during local development. These included missing environment variables, failed production builds, API routing mismatches, CORS restrictions, incorrect base URLs, and database connection errors after deployment. These problems are common because production environments behave differently from local machines.
To resolve these issues, I carefully reviewed build logs, validated environment configurations, optimized API routes, secured server-side variables, corrected deployment settings, and tested each stage before publishing. I also implemented production-ready error handling, performance optimizations, and deployment best practices to ensure the application remained stable, secure, and fast after going live.
My advice to developers and startups is to treat deployment as part of the development process rather than the final step. Test production builds early, manage environment variables securely, monitor application logs, and automate deployments whenever possible. A successful launch is built on preparation, testing, and continuous improvement—not luck.
#Deployment
#Publishing
#WebDevelopment
#FullStack
#DevOps
#CloudDeployment
#ProductionReady
#NextJS
#React
#NodeJS
#Vercel
#Render
#Railway
#Docker
#AWS
Great advise👍
Application crashing? API failing? Login broken? Performance slowing down? I specialize in identifying and fixing frontend and backend issues quickly so applications become stable, secure, and production-ready.
New project delivered 🚛 Cargo Jet Logistics — a website built to match a
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👉 See the full project: cargojet.vercel.app
Capturing a 24/7 logistics brand vibe requires sharp visual structure and clear UI hierarchy. The live demo on Vercel feels super responsive and professional. Solid execution!