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dockerjavaspring-bootspringboot

Deploying a Spring Boot application involves several steps to ensure that your application runs smoothly in a production environment. Here's a general outline of the deployment process:

  1. Build the Application:

    • Make sure your Spring Boot application is properly configured and can be built using build tools like Maven or Gradle.

  2. Configure Dependencies:

    • Ensure that your application's dependencies are correctly managed and defined in the build configuration files (pom.xml for Maven, build.gradle for Gradle).

  3. Externalize Configuration:

    • Externalize configuration using properties or YAML files. This allows you to configure your application for different environments without changing the code.

  4. Set Up Database and Resources:

    • Configure database connections, connection pools, and any other external resources your application relies on.

  5. Implement Security:

    • If needed, implement security measures such as authentication and authorization.

  6. Prepare for Production Profiles:

    • Create different profiles for development, testing, and production environments. Configure environment-specific settings.

  7. Optimize Logging:

    • Configure logging to capture relevant information for debugging and monitoring in a production environment.

  8. Enable HTTPS:

    • For security reasons, it's recommended to use HTTPS in production. Configure your Spring Boot application to support HTTPS.

  9. Package the Application:

    • Create a deployable artifact (usually a JAR or WAR file) of your Spring Boot application.

  10. Choose a Deployment Strategy:

    • Depending on your infrastructure and requirements, you can choose to deploy your Spring Boot application in various ways:
    • Traditional Server Deployment: Deploy your application to a servlet container like Tomcat, Jetty, or WildFly.
    • Embedded Container Deployment: Spring Boot comes with embedded servlet containers like Tomcat and Jetty. You can package your application as an executable JAR and run it using the embedded container.
    • Docker Container: Containerize your application using Docker for better isolation and portability.
    • Cloud Platforms: Deploy your application on cloud platforms like AWS, Azure, Google Cloud, etc.

  11. Configure Database and Resources in Production:

    • Set up production database connections and other external resources with appropriate configurations.

  12. Set Up Reverse Proxy (Optional):

    • If deploying on a public server, consider setting up a reverse proxy (like Nginx or Apache) to handle incoming traffic and forward requests to your Spring Boot application.

  13. Load Balancing (Optional):

    • For high availability and improved performance, set up load balancing if you have multiple instances of your application running.

  14. Monitor and Scale:

    • Implement monitoring and logging solutions to keep an eye on your application's health and performance. Set up auto-scaling if required.

  15. Continuous Deployment (Optional):

    • Implement a continuous integration and continuous deployment (CI/CD) pipeline to automate the deployment process whenever code changes are pushed.

  16. Security Hardening:

    • Implement security best practices such as keeping your dependencies updated, applying security patches, and following security guidelines.

  17. Backup and Disaster Recovery:

    • Set up regular backups of your application and database to ensure data recovery in case of failures.

  18. Testing in Production-like Environment:

    • Before deploying to the production environment, thoroughly test your application in a production-like environment to identify and fix any issues.

HOSTING ON RENDER.COM

RESSOURCES

Render · The Easiest Cloud For All Your Apps

https://hostingtutorials.dev/blog/free-spring-boot-host-with-render (TOP)

https://javawhizz.com/2023/03/host-a-spring-boot-application-for-free-on-render

https://zeet.co

STEPS

  • package your application with Maven run: mvn clean package

  • test the jar

java -jar target/demo-0.0.1-SNAPSHOT.jar

  • Create a Dockerfile

    Create a file named Dockerfile in the project root. Copy and paste the following Docker commands into the file. This will be used to create the Docker image, that we are going to deploy on Render.

    Maven:

    Dockerfile

    FROM eclipse-temurin:17-jdk-alpine
VOLUME /tmp
COPY target/*.jar app.jar
ENTRYPOINT ["java","-jar","/app.jar"]

  • BUILDING DOCKER IMAGE (use vs code docker extension)

docker build -t demo .
  • SEARCH THE IMAGE
docker images
  • TAG THE IMAGE
docker tag demo YOUR-USER-NAME/testsbapp
  • PUSH THE IMAGE
docker push YOUR-USER-NAME/testsbapp
  • PUT THE NAME LIKE THIS
docker.io/kbrightcoder/rest-api:latest

Deploying on Render

Once your image is up on docker hub we'll have to go to our account on Render and enable a setting in our profile called Early Access -> Deploy from external registries -> Enable

This will allow us to be able to deploy the public docker image that we uploaded to Docker hub.

After that press on the New + button on the top and choose Web Service. We want to choose the Deploy an existing image from a registry

SELECT THE IMAGE

  • It' s finish

RUN AN IMAGE

docker run -p 8080:8080 spring-boot-render

FREE MYSQL HOSTING

MYSQL DB4FREE HOSTING TEST

  • go to GitHub - kpidiba/SPRING-BOOT

  • branch hosting

  • database configuration need: username,password,server name that will replace localhost with his port

  • example

spring.jpa.hibernate.ddl-auto=update
spring.datasource.url=jdbc:mysql://db4free.net:3306/hosting1_1
spring.datasource.username=root123_1
spring.datasource.password=;Q233e;5mZWGSfT
spring.datasource.driver-class-name =com.mysql.cj.jdbc.Driver
spring.jpa.database-platform = org.hibernate.dialect.MySQL5Dialect
spring.jpa.generate-ddl=true

DATABASE CONFIGURATIONS

SPRING BOOT HOSTING

MAINTENANCE

Maintaining a Spring Boot application involves a combination of tasks that help keep your application running smoothly, securely, and efficiently over time. Here's a comprehensive guide on how to maintain your Spring Boot application effectively:

1. Regular Updates and Maintenance:

  • Keep Dependencies Up-to-Date: Regularly update your project dependencies, including Spring Boot, libraries, and frameworks, to benefit from bug fixes, security patches, and new features.

  • Code Refactoring: Periodically review your codebase for code smells, duplicate code, and areas for improvement. Refactor your code to improve readability, maintainability, and performance.

  • Review and Optimize Database Queries: Review database queries and optimize them for performance. Use tools like Hibernate's query profiling or database monitoring tools.

  • Monitor Logs: Continuously monitor application logs for errors, exceptions, and performance bottlenecks. Use logging frameworks like Logback or Log4j and integrate log aggregation tools.

2. Security:

  • Keep Security Libraries Updated: Regularly update security-related libraries to patch vulnerabilities.

  • Vulnerability Scanning: Perform regular vulnerability scans on your application and its dependencies. Use tools like OWASP Dependency-Check.

  • Security Testing: Conduct security testing, including penetration testing, to identify vulnerabilities in your application.

  • Implement Security Best Practices: Follow security best practices such as input validation, output encoding, proper authentication, and authorization mechanisms.

3. Monitoring and Performance:

  • Application Performance Monitoring (APM): Use APM tools like New Relic, AppDynamics, or Prometheus to monitor application performance, identify bottlenecks, and optimize code.

  • Metrics and Analytics: Implement metrics and monitoring for key application metrics such as response times, error rates, and resource utilization.

  • Load Testing: Conduct load testing to assess your application's performance under various user loads.

4. Backup and Disaster Recovery:

  • Regular Backups: Implement a regular backup strategy for both your application files and your database.

  • Disaster Recovery Plan: Develop a disaster recovery plan that outlines steps to take in case of unexpected failures or data loss.

5. Continuous Integration and Deployment (CI/CD):

  • Automated Testing: Implement automated unit tests, integration tests, and end-to-end tests as part of your CI/CD pipeline.

  • Continuous Integration: Set up a CI/CD pipeline to automate testing, building, and deploying your application.

  • Continuous Deployment: Automate deployment to different environments using CI/CD practices.

6. Documentation:

  • Documentation Maintenance: Keep your application's documentation up-to-date, including installation instructions, usage guidelines, and API documentation.

  • Change Logs: Maintain detailed change logs to keep track of feature additions, bug fixes, and improvements.

7. Scalability:

  • Auto-scaling: Design your application to handle increased loads by utilizing auto-scaling mechanisms.

  • Load Balancing: Implement load balancing to distribute traffic evenly among multiple instances of your application.

8. Regular Testing:

  • Regression Testing: Continuously perform regression testing to ensure that new changes do not break existing functionality.

  • User Acceptance Testing: Conduct user acceptance testing to involve stakeholders and ensure the application meets their requirements.

9. User Feedback:

  • Collect Feedback: Encourage users to provide feedback and report issues. Actively address user concerns and prioritize improvements.

10. Version Control and Git:

  • Version Control: Use version control systems like Git to track changes, collaborate with your team, and manage code history.

11. Employee Knowledge:

  • Knowledge Sharing: Maintain documentation and conduct knowledge-sharing sessions to ensure team members are aware of application intricacies

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