Do It Yourself :: Web App - Web Api
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Presentation on creating and deploying Cloud Native Web Application or Web Api using Java, Spring Boot, Git, Gitlab, Auto CI / CD pipeline, Heroku and Let's Encrypt SSL.
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Do It Yourself :: Web App - Web Api
- 1. DIY - Web App / Web Api Java / JVM Languages + Gitlab (git, Auto CI & CD) + Heroku + Let’s Encrypt SSL Harish Kannarao LinkedIn: https://www.linkedin.com/in/harish-kannarao/ Github: https://github.com/harishkannarao Blogs: https://harish-kannarao.blogspot.in/
- 2. There was a passionate java developer, doing some serious application programming
- 3. One day, he got married to a lovely girl
- 4. She was a founder and trustee of Aathirai Educational and Charitable trust (a small non-profitable charity organisation)
- 5. ➢ Receive donations online (payment gateway) ➢ Allow social logins (Google, Facebook…) to update subscribers about events
- 6. The Developer gets super excited to make enhancements to the website
- 7. Reality: ➔ PHP application ➔ No version control ➔ No page templating ➔ Not mobile friendly ➔ No tests ➔ No CI / CD ➔ No SSL ➔ SSL is expensive
- 8. Convince the trustees: ➔ Rewrite the website ➔ Good automated test coverage (unit and integration level) ➔ Git version control ➔ Responsive web application ➔ Auto-pipelines (CI & CD) ➔ SSL support ➔ Keeping cost to minimal level
- 9. Create a simple standalone java web application with basic unit and integration tests (Spring Boot)
- 10. Version Control service: ➔ Github ➔ Gitlab ➔ Bitbucket ➔ …..
- 11. https://about.gitlab.com/gitlab-com/ Highlights: ● Free unlimited private repositories and collaborators ● Free Auto CI & CD pipelines (2000 minutes per minutes with shared runners) Digital Ocean droplets for GitLab CI Runners: https://www.digitalocean.com/pricing/#droplet https://about.gitlab.com/2016/04/19/how-to-set-up-gitlab-run ner-on-digitalocean/ Gitlab price plan
- 12. Cloud hosting service: ➔ AWS from Amazon ➔ Cloud Foundry from Pivotal ➔ Openshift from Redhat ➔ Heroku from Salesforce ➔ Google Cloud ➔ …..
- 13. Heroku price plan ● Official plugin for Maven, Gradle and SBT ● Let’s Encrypt SSL support with Auto Certificate Management (ACM) ● Price start from $7 per month https://www.heroku.com/pricing For $7 per month: ● 512 MB RAM up to 10 Process Types ● Let’s Encrypt SSL with Auto Certificate Management ● Basic Application Metrics ● Postgres Database up to 10K rows ● Redis database up to 20 concurrent connections
- 14. Commercial SSL Certificates: ● Single site SSL certificate is $36 for first year and then $70 per year from second year ● Wildcard SSL certificate initial cost is $185 for first year and $300 per year from second year
- 15. Let’s Encrypt SSL Let’s Encrypt is a free, automated, and open certificate authority brought to you by the non-profit Internet Security Research Group (ISRG). About: https://letsencrypt.org/about/ Compatibility: https://letsencrypt.org/docs/certificate-compatibility/ Statistics: https://letsencrypt.org/stats/
- 16. Complete picture Gitlab Auto CI Pipeline (Unit and Integration Tests) Java Spring Boot Web App Auto CD Pipeline (Deploy to Heroku) Heroku Java Build Packs Auto Certificate Management Load balancer and Instances Let’s Encrypt Domain Registrar’s CNAME Entry (GoDaddy)
- 17. ● Java ● Spring Boot ● Bootstrap ● Angular ● Webjar ● Responsive ● Single Page Application ● Test Driven Development ● Auto-Pipelines for CI & CD & Room for future enhancements http://www.aathirai.org
- 18. ➢ Gitlab pipeline & configuration ➢ Gitlab runners configuration ➢ Heroku plugin configuration ➢ Heroku dashboard ➢ Heroku settings ○ Custom domain ○ Let’s Encrypt SSL ➢ Heroku metrics ➢ CNAME Entry ○ GoDaddy Quick Demo
- 19. Wife became very happy and husband gets treated with some awesome Indian food at home, along with loads of love.
- 20. Can this same concept be applied to a medium sized project with multiple environment and complex pipeline ???? Not the End…...
- 23. The Twelve-Factor App https://12factor.net/ I. Codebase One codebase tracked in revision control, many deploys II. Dependencies Explicitly declare and isolate dependencies III. Config Store config in the environment IV. Backing services Treat backing services as attached resources V. Build, release, run Strictly separate build and run stages VI. Processes Execute the app as one or more stateless processes VII. Port binding Export services via port binding VIII. Concurrency Scale out via the process model IX. Disposability Maximize robustness with fast startup and graceful shutdown X. Dev/prod parity Keep development, staging, and production as similar as possible XI. Logs Treat logs as event streams XII. Admin processes Run admin/management tasks as one-off processes
- 24. ○ Multiple pipelines in single (mono) Repo? https://gitlab.com/gitlab-org/gitla b-ce/issues/18157 ○ Ability to configure inter project pipeline dependencies? Other Challenges for large enterprise projects
- 25. Other Challenges (Continued…) ○ Role based permission for manual triggers? https://gitlab.com/gitlab-org/gitla b-ce/issues/20261 ○ Mono release in Heroku with multiple micro components? ○ Scoped API key for Heroku
- 26. https://www.your-next-fancy-idea.com Java / JVM based language or framework Gitlab [ Digital Ocean ] Heroku [ Let’s Encrypt ] Go Daddy ● Get started with basic hello world skeleton app in less than 3 hours ● Zero manual interaction from development to live ● Cost: ○ Version Control: Free (basic) / $4 per user per month (advanced) from Gitlab ○ CI & CD: Free (up to 2000 minutes from Gitlab) / From $5 per month (with Digital Ocean runners) ○ App Instance: From $7 per month (with Heroku) ● Can scale up with business needs and growth https://api.your-next-mobile-app.com Summary
- 27. The peak–end rule is a psychological heuristic in which people judge an experience largely based on how they felt at its peak (i.e., its most intense point) and at its end, rather than based on the total sum or average of every moment of the experience. Example: ● Brexit Referendum 2016 ● US Presidential Election 2016 Peak-End Rule https://en.wikipedia.org/wiki/Peak%E2%80%93end_rule