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Continuous Delivery (CD)

Last updated: October 5, 2021

What Does Continuous Delivery (CD) Mean?

Continuous delivery (CD) is a software development practice that automates quality assurance (QA) testing in order to facilitate frequent code releases to a staging server.

A continuous delivery approach requires the production and test environments to be similar. Once new code is committed, it triggers an automated work flow that builds, tests and stages the update.

With continuous delivery, the developer makes the final decision about whether the code is stable enough to move into a live production environment, and the operations team is responsible for moving approved code from stage to a production server.

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Techopedia Explains Continuous Delivery (CD)

In addition to continuous integration and continuous delivery, CI/CD includes the concept of continuous deployment.

Continuous Delivery vs. Deployment

In addition to continuous integration and continuous delivery, CI/CD includes the concept of continuous deployment.

Unlike a continuous delivery approach, which requires operations team members to manually release code to production, continuous deployments automatically release code into production in canary tests. A canary test is simply a code release that only goes out to a small percentage of users. In this approach, the small percentage of end users serve as the test environment.

What is CI/CD?

The term CD is often mentioned in tandem with continuous integration (CI). CI/CD is an umbrella term that is often used to describe any software development process that includes automation.

DevOps teams use automation to accelerate the build, test, and deployment stages of software development.

Continuous delivery -- QA testing is automated, but code is released manually.

Continuous deployment -- Code changes are automatically released to production as canary tests.

Continuous integration -- Developers use a shared repository like Git to automatically build and run QA tests. If a build or test fails, the CI server alerts the development team.

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Software DevelopmentSoftware TestingDevOps

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