Containers on Linode Guides & Tutorials

Deploy Zot as a Pull Through OCI Cache for Docker Hub

Wed, 01 Oct 2025 00:00:00 +0000

A wide range of internet services, embedded software, and other applications are packaged and run with containers. Many tools have been developed around the container ecosystem, and a common standard known as Open Container Initiative (OCI) facilitates interoperability between these tools.

How to Build a Cloud Native Private Registry With Quay

Thu, 02 May 2024 00:00:00 +0000

Docker doesn’t provide long term storage or image distribution capabilities, so developers need something more. Docker Registry performs these tasks, and using it guarantees the same application runtime environment through virtualization. However, building an image can involve a significant time investment, which is where Quay comes in. A registry like Quay can both build and store containers. You can then deploy these containers in a shorter time and with less effort than using Docker Registry. This guide explains how Quay can be an essential part of the development process and details how to deploy a Quay registry.

How to Create a Dagger Pipeline on Akamai

Sat, 19 Aug 2023 00:00:00 +0000

Dagger is a free and open source application for automating Continuous Integration/Continuous Delivery (CI/CD) pipelines. It allows administrators and developers to create scripts to assemble, test, build, and even publish a project to a container registry. Dagger includes APIs for several programming languages, providing additional convenience. This guide supplies a brief introduction to Dagger and demonstrates how to create a simple Dagger pipeline.

How to Use Dockerized to Run Commands

Tue, 08 Aug 2023 00:00:00 +0000

Dockerized is a utility that runs common commands, interpreters, and other applications within a Docker container. This saves you from manually installing each command (and its dependencies) to your local system. Using Dockerized allows you to try out a new tool, leverage a tool for a one-off task, or ensure your team is using the same version of a tool.

What Are Cloud-Native Applications

Mon, 12 Jun 2023 00:00:00 +0000

“Cloud-native applications” is a term that has evolved as it has grown. As part of that growth, the Cloud Native Computing Foundation (CNCF) was launched in 2015 by the Linux Foundation. It serves as a vendor-neutral platform for many projects around cloud-native apps, including Kubernetes, Prometheus, and Envoy.

How to Use Docker Compose V2

Tue, 06 Jun 2023 00:00:00 +0000

The Docker application makes it easier to develop, build, run, and share integrated applications. It uses virtualization techniques to package applications inside containers. The Docker Compose plug-in expands these capabilities, allowing users to instantaneously deploy multiple containers with a single command. This guide provides some background on Docker Compose and explains how to install and use it.

Serverless vs Containers: Choose Which One to Use

Tue, 02 May 2023 00:00:00 +0000

Getting as much done in as little time, and with as little overhead as possible is an essential element of modern development. The end result needs to be easy to deploy, maintain, and debug. Plus, it all has to run in the cloud. That’s asking a lot, but both serverless applications and containers offer solutions. They’re both designed to replace virtual machines that require much more work on the organization’s part. Of the two, containers are a more robust solution that include everything needed to run an application, usually as a set of microservices. Meanwhile, serverless applications are less complex solutions that focus on application code that relies on services provided by a vendor API. There isn’t a right or wrong choice with either technology, simply the choice that benefits an organization most, as this guide explains.

How to Use Nomad for Container Orchestration

Fri, 03 Feb 2023 00:00:00 +0000

Nomad is an open source workload orchestration and scheduling system that offers a simplified and flexible alternative to Kubernetes. Nomad can deploy and manage both containerized and non-containerized applications across efficient, highly scalable clusters. Nomad is part of the HashiCorp ecosystem, giving it built-in integration with tools like Consul, Terraform, and Vault. Learn more about Nomad and how it compares to Kubernetes in our guide Kubernetes vs Nomad: Which Is Better?.

Install Podman for Running Containers

Tue, 26 Jul 2022 00:00:00 +0000

Podman is an open source containerization tool. Like Docker, Podman is a solution for creating, running, and managing containers. But Podman goes beyond Docker, using a secure daemonless process to run containers in rootless mode.

Podman vs Docker: Comparing the Two Containerization Tools

Tue, 26 Jul 2022 00:00:00 +0000

Containers offer you powerful tools for developing and deploying applications. They give you distinct and portable virtual environments with a fraction of the overhead of traditional virtual machines.

Use Buildah to Build OCI Container Images

Tue, 26 Jul 2022 00:00:00 +0000

Buildah is an open source containerization tool capable of creating images from scratch, Dockerfiles, or Containerfiles. It also follows the Open Container Initiative (OCI) specifications, making Buildah images both versatile and open.

Monitoring Docker Containers: Benefits, Best Practices, and Must-Have Tools

Fri, 04 Mar 2022 00:00:00 +0000

Eight years ago containers were a known technology, but with little public adoption. Then, Solomon Hykes created Docker, a container technology, making containers much easier to use. Today, containers rule the IT world. Gartner predicts 70% of organizations will run containerized applications by 2023.

How to Remove Docker Images, Containers, and Volumes

Mon, 21 Feb 2022 00:00:00 +0000

Docker containerization can make working with applications and services easier, however complex they may be. But you may want to periodically manage your accumulated Docker resources. Docker takes a conservative approach to “garbage collection,” which can leave you with unused Docker resources sitting around, especially in development environments.

How Cloud Containers Work And Their Benefits

Fri, 10 Dec 2021 00:00:00 +0000

Tech trends come and go but cloud containers are one tech that’s here to stay. Their origins can be traced back to 1982 Unix, but containers didn’t gain wide acceptance until the last decade as the next logical step from virtualization. Today they are a popular means of application modernization and deployment.

Set Up MongoDB on Docker

Fri, 27 Aug 2021 00:00:00 +0000

MongoDB is an open-source NoSQL database utilizing JSON-like documents and schemata that support rapid iterative development. Its scale-out architecture is popular with application developers who use agile methodologies to move quickly. As it’s popular within the agile community, using MongoDB with Docker is an excellent approach for a continuous integration and development (CI/CD) workflow.

Understanding Docker Volumes

Fri, 13 Aug 2021 00:00:00 +0000

Files (and other data) stored within a Docker container does not persist if the container is deleted. To overcome this, Docker volumes and bind mounts can be used. This guide discusses using Docker volumes as a way to store persistent data. Think of volumes as an external hard drive; if the internal hard drive is erased, the external hard drive still retain its own data. Volumes are stored on the host and independent of any container or image. They can be mounted to different containers as needed and, since volumes are separate from the image, they do not increase the image size.

Installing and Using Docker on CentOS and Fedora

Wed, 16 Jun 2021 00:00:00 +0000

Docker is a tool that enables you to create, deploy, and manage lightweight, stand-alone packages called containers. These containers have the necessary code, libraries, runtime, system settings, and dependencies needed to run an application.

Installing and Using Docker on Ubuntu and Debian

Wed, 16 Jun 2021 00:00:00 +0000

How to Use Docker Images, Containers, and Dockerfiles in Depth

Thu, 29 Apr 2021 00:00:00 +0000

Docker images make it easy to deploy multiple containers without having to maintain the same image across several virtual machines. You can use a Dockerfile to automate the installation and configuration of an image and its dependencies. A Dockerfile is a text file of the commands (which are executed in order) used to automate installation and configuration of a Docker image. This article expands on our guide on How to Use a Dockerfile to Build a Docker Image by covering in-depth utilization of Docker images, containers, and Dockerfiles.

A Beginner's Guide to LXD: Setting Up a Reverse Proxy to Host Multiple Websites

Wed, 28 Aug 2019 00:00:00 +0000

Introduction

LXD (pronounced “Lex-Dee”) is a system container manager build on top of Linux Containers (LXC) supported by Canonical. The goal of LXD is to provide an experience similar to a virtual machine but through containerization rather than hardware virtualization. Compared to Docker for delivering applications, LXD offers nearly full operating-system functionality with additional features such as snapshots, live migrations, and storage management.

A Beginner's Guide to LXD: Setting Up an Apache Web Server

Wed, 01 May 2019 00:00:00 +0000

Container Instrumentation with the Elastic Stack

Sun, 10 Feb 2019 00:00:00 +0000

Deploy a Flask Application with Dokku

Wed, 07 Mar 2018 00:00:00 +0000

Dokku is a self-hosted Platform-as-a-Service (PaaS) that makes deploying applications simple using Git. Although Dokku’s implementation is similar to Heroku, it lacks certain key features such as auto-scaling. Dokku is an extremely powerful tool that automatically runs your application inside Docker and requires minimal configuration of web servers.

Access an Apache Web Server Inside a LXD Container

Mon, 12 Feb 2018 00:00:00 +0000

How to Deploy Microservices with Docker

Thu, 04 Jan 2018 00:00:00 +0000

How to Use Docker Compose

Tue, 02 Jan 2018 00:00:00 +0000

Connect Docker Containers

Thu, 28 Dec 2017 00:00:00 +0000

How to Deploy Apps with Rancher

Wed, 29 Nov 2017 00:00:00 +0000

What is Rancher?

Rancher is a tool that streamlines container usage on a host. Rancher sits on top of Docker and Kubernetes, giving you the ability to stand up clusters of containers with the push of a button. The web front-end gives the you and your users access to an impressive catalog of ready-to-go containerized tools that can be deployed from within Rancher.

When and Why to Use Docker

Mon, 20 Nov 2017 00:00:00 +0000

How to Install OpenVZ On Debian 9

Fri, 22 Sep 2017 00:00:00 +0000

What is OpenVZ?

OpenVZ is a software-based OS virtualization tool enabling the deployment, management, and modification of isolated virtual Linux environments from within a host Linux distribution. An extensive array of prebuilt OS templates in a variety of Linux distributions allow users to rapidly download and deploy virtual environments with ease.