SQL Server 2019 Revealed by Bob Ward

Author:Bob Ward
Language: eng
Format: epub
ISBN: 9781484254196
Publisher: Apress

Container Lifecycle

When you install Docker whether it is on Linux, Windows, or macOS, the following components are installed which enable containers:

Docker engine – This consists of the docker daemon which is a “service” that controls all the operations for building and running containers. The docker engine supports an API for programs to interact with the engine for building and running containers. You can read more about the docker engine at https://docs.docker.com/engine/ . You can read more about the engine API at https://docs.docker.com/develop/sdk/ .

docker client – This is a program called docker which uses the engine API to build and run containers. The docker client is a consistent program in that it supports options and behaves the same across Windows, macOS, and Linux. You will use the docker client throughout this chapter in the examples.

docker compose – This is a program called docker- compose which allows you to build and run multi-container applications. You will use docker-compose in an example later in this chapter with SQL Server Replication.

Using these components, consider the following workflow I call the container lifecycle as seen in Figure 7-2.

Figure 7-2The container lifecycle

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