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All code from this tutorial as a complete package is available in this repository.
The easiest way to do that is a tool called nodemon.
For a brief intro to compose see here, and for more details than you can ever handle about the compose file spec see here.
Similar to Node, Docker Hub has a super simple easy to use image for PostgreSQL. Of course theres also images for MySQL, Mongo, Redis, etc, etc. There's no reason you couldn't substitute your favourite out if you want (though if you're still new to Docker I'd suggest you stick with the tutorial for now).
With Docker we can use code to generate the environment that our app runs in. We'll begin by searching Docker hub for a Node.js image. The official Node image is just called node.
Hello from Docker! This message shows that your installation appears to be working correctly. To generate this message, Docker took the following steps: 1. The Docker client contacted the Docker daemon. 2. The Docker daemon pulled the "hello-world" image from the Docker Hub. (amd64) 3. The Docker daemon created a new container from that image which runs the executable that produces the output you are currently reading. 4. The Docker daemon streamed that output to the Docker client, which sent it to your terminal. To try something more ambitious, you can run an Ubuntu container with: $ docker run -it ubuntu bash Share images, automate workflows, and more with a free Docker ID: https://hub.docker.com/ For more examples and ideas, visit: https://docs.docker.com/get-started/
For a brief intro to compose see here, and for more details than you can ever handle about the compose file spec see here.
Hello from Docker! This message shows that your installation appears to be working correctly. To generate this message, Docker took the following steps: 1. The Docker client contacted the Docker daemon. 2. The Docker daemon pulled the "hello-world" image from the Docker Hub. (amd64) 3. The Docker daemon created a new container from that image which runs the executable that produces the output you are currently reading. 4. The Docker daemon streamed that output to the Docker client, which sent it to your terminal. To try something more ambitious, you can run an Ubuntu container with: $ docker run -it ubuntu bash Share images, automate workflows, and more with a free Docker ID: https://hub.docker.com/ For more examples and ideas, visit: https://docs.docker.com/get-started/