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The main classes of Docker objects are images, containers, and services. [22] A Docker container is a standardized, encapsulated environment that runs applications. [25] A container is managed using the Docker API or CLI. [22] A Docker image is a read-only template used to build containers. Images are used to store and ship applications. [22] A ...
Using other enterprise container solutions like Docker in HPC systems would require modifications to the software. [35] Docker containers can be automatically converted to stand-alone singularity files which can then be submitted to HPC resource managers. [36] Singularity seamlessly integrates with many resource managers [37] including ...
Container clusters need to be managed. This includes functionality to create a cluster, to upgrade the software or repair it, balance the load between existing instances, scale by starting or stopping instances to adapt to the number of users, to log activities and monitor produced logs or the application itself by querying sensors.
It is a container hypervisor providing an API to manage LXC containers. [14] The LXD project was started in 2015 and was sponsored from the start by Canonical Ltd. , the company behind Ubuntu . On 4 July 2023, the LinuxContainers project announced that Canonical had decided to take over the LXD project but a fork called Incus was made.
The Open Container Initiative (OCI) is a Linux Foundation project, started in June 2015 by Docker, CoreOS, and the maintainers of appc (short for "App Container") to design open standards for operating system-level virtualization .
System Center Operations Manager (SCOM) is a cross-platform data center monitoring system for operating systems and hypervisors. It uses a single interface that shows state, health, and performance information of computer systems.
When a process is first created, it occupies the "created" or "new" state. In this state, the process awaits admission to the "ready" state. Admission will be approved or delayed by a long-term, or admission, scheduler. Typically in most desktop computer systems, this admission will be approved automatically.
Containers emerged as a way to make software portable. The container contains all the packages needed to run a service. The provided file system makes containers extremely portable and easy to use in development. A container can be moved from development to test or production with no or relatively few configuration changes.