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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 ...
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.
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 ...
An OpenVZ administrator can enable container access to various real devices, such as disk drives, USB ports, [6] PCI devices [7] or physical network cards. [ 8 ] /dev/loopN is often restricted in deployments (as loop devices use kernel threads which might be a security issue), which restricts the ability to mount disk images.
The OCI organization includes the development of runc, which is the reference implementation of the runtime-spec, [7] [8] a container runtime that implements their specification and serves as a basis for other higher-level tools. runc was first released in July 2015 as version 0.0.1 [9] and it reached version 1.0.0 on June 22, 2021.
Docker can be used to manage Windows Server container networking, and associate SDN policies not only with virtual machines but containers as well; Remote Desktop Services: a highly available RDS deployment can leverage Azure SQL Database for the RD Connection Brokers in high availability mode
Hyper-V is a native hypervisor developed by Microsoft; it can create virtual machines on x86-64 systems running Windows. [1] It is included in Pro and Enterprise editions of Windows NT (since Windows 8) as an optional feature to be manually enabled. [2]
containerd is an industry-standard core container runtime. It is currently available as a daemon for Linux and Windows, which can manage the complete container lifecycle of its host system. In 2015, Docker donated the OCI Specification to The Linux Foundation with a