![]() Finally, execute/run docker-compose up.Second, create a " docker-compose.yml" file that defines the services to be run together in an isolated environment.First, define the app environment in a Dockerfile.The running of an app is a three-step process as summarized below: Notably, it works effectively in all environments, including development, production, testing, staging, and CI ( Continuous Integration) workflows. So if Docker runs single container applications, we can scale it up to contain multiple containers as shown above using Docker Compose. Moreover, we need not start each container separately. So, for example, if the application requires MySQL and NUnit, we can start both the containers at once as a service using the YAML file. Moreover, when we use YAML, we can create and start all the application services with a single command.ĭocker Compose runs multiple containers as a single service. Additionally, e use a configuration file " YAML" with the compose for configuring Docker application's services. It is a tool that defines and executes Docker applications with multiple ( more than one) containers. What is the difference between Dockerfile and Docker Compose?.Docker-compose config: multiple compose files. ![]() How to set environment variables in Docker-Compose?.Consequently, in this article, we are going to discuss this in detail. However, Docker provides us with the flexibility to deal with and run multiple containers as well as using a tool to work on them called Docker Compose. So far, in our articles on Docker Container, we have dealt with one container at a time. ![]()
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