Docker is used to develop and deploy applications with containers. It is popular due to its flexibility and low system requirements, but errors sometimes happen.
This tutorial will help you find the cause of the "cannot connect to the Docker daemon" error and fix any underlying issues.
Create ConfigMaps for your pods configuration settings to keep your images light and portable. This guide shows four different ways how to create a ConfigMap. Additionally, it teaches you how to configure a pod to use a ConfigMap by using volumes or environment variables.
Docker images can easily become too large to handle, which is why it is important to keep their size under control. You can drastically reduce image size by applying a few simple rules while creating a Dockerfile. Read on to find out how to keep your Docker images small and speed up building.
Deploying MySQL in a container is a fast and efficient solution for small and medium-size applications. Instead of setting up a separate MySQL server, you can deploy a MySQL database container instead. These containers are lightweight and fast to spin up since they share the kernel and libraries of the host while packaging the deployed application.
Persistent Volumes are used in Kubernetes orchestration when you want to preserve the data in the volume even after a specific pod has finished claiming it. It is a way of connecting a container to external storage through a series of abstractions. Learn more about this useful Kubernetes feature here.
PostgreSQL is the third most popular Docker image used for deploying containers. Run PostgreSQL on Docker by pulling the Postgres image from Docker's official repository and set up the database service for your application development. This article shows you two ways to run PostgreSQL on Docker as well as how to connect to your database deployed inside the container.
Microservices are a system used to develop an application, built on a selection of individual services working together to ensure seamless and highly responsive performance. If you are building a complex, multi-functional app, you should consider using the microservice architecture.
Container deployment took the software development world by storm. Use the outlined guidelines and learn how to get the most out of the container images and Kubernetes. The more of these concepts you apply in practice, the more effective your system will be.
Docker allows users to run a container based on an existing image. This feature is both time efficient and practical for application development. What's more, Docker also lets developers create new images by committing changes to running containers. This article shows how to commit changes to a Docker image and create new ones.
The article explores Kubernetes Architecture and the concept of Container Deployment. All elements of a Kubernetes cluster are discussed in great detail. Also, diagrams were used to simplify the more complex functions.