Docker Images馃惓 As we saw in the basics of Docker post, the base flow of every Docker container is an image. A Docker image, whether custom or pre-built, is absolutely necessary for us to be able to run anything using Docker. In essence, a Docker image is a union of layered filesystem stacked on top of each other. This stands true for pre-built images as well as custom images that we might create using some pre-built image as a base....
Why Docker Compose鈦夛笍 In the previous post, we saw how to run a Docker Container from a Docker image, either custom or pre-built image from the DockerHub. However, as we discussed, a big software is not built on just one Docker Container but many containers, working as microservices. When running multiple such containers, it is important that they are able to interact with each other, be able to exchange data, and thus act as independent blocks of a larger piece of software....
What is a Docker Container?馃摝 In the previous post, we saw how to find Docker images form the DockerHub, and also how to create our own Docker image that executes a function. In this post, we will go more over the execution part of Docker, mainly about how to run a Docker image as a container. Docker Containers are Docker images that become containers at run time. Docker containers are short pieces of software that runs an application quickly, as a lightweight standalone package....