instruction: Explain Docker containerization in CI/CD pipelines
output: Dollar Shave Club Launch major features rapidly, and with ease Rapidly growing men’s grooming home delivery service, Dollar Shave Club, trusts CircleCI to deliver quality results for their web and mobile test and deployment processes Why CircleCI? Dollar Shave Club delivers high quality razors, and more, direct to consumers doorsteps. Since deploying CircleCI’s platform at the end of 2014, engineers have been able to launch major features and updates like gifting subscriptions and promotions rapidly and with ease. “ CircleCI has significantly simplified setup and maintenance of our test environment and this allows us to run and maintain a stable test suite increasing the team’s confidence in the test results.” Jason Bosco | VP of Engineering at Dollar Shave Club The Challenge Prior to CircleCI Before CircleCI, Dollar Shave Club engineers ran test suites on local machines, and attempted many times to get them running on Jenkins. Because they had to manage so many environments on the Jenkins box, it required a significant amount of both time and effort. Engineers ran single spec files for the features they were working on instead of whole test suite before committing code - which meant that committing one buggy feature could break the entire suite. The Solution Dollar Shave Club chose CircleCI for both iOS and web to build reliable software and a positive user experience. CircleCI offers support for running Docker within build containers, seamlessly integrating with Dollar Shave Club’s test environment, which ensured that set-up was quick and simple. Once DSC started running CircleCI, as soon as their engineers commit code, the entire test suite runs and provides immediate feedback. This translates to increased confidence levels of the test suite, knowing that if it breaks, the team can go in and investigate. “ CircleCI is one of those tools that silently chugs along in your stack doing some serious heavy-lifting while staying out of your way.” Jason Bosco | VP of Engineering at Dollar Shave Club About Dollar Shave Club Dollar Shave Club is a men’s grooming brand dedicated to helping men live smarter, more successful lives through high-quality personal care products, content and technology. DSC began in March 2012 with a simple offering: deliver high-quality razors for a couple bucks a month. The Club has since launched a lineup of additional products on its march toward owning the men’s bathroom. Those products include Boogie’s, a new category of hair styling products including Gel, Clay, Cream, Fiber and Paste; Dr. Carver’s Easy Shave Butter; Dr. Carver’s Magnanimous Post Shave; Dr. Carver’s Miracle Repair Serum, and One Wipe Charlies. DSC will soon be the easiest place for guys to get the things they use every day. Industry E-commerce Previous CI/CD Jenkins Company size SMB Region North America Languages Ruby Deploys to AWS