With the rapid development of cloud computing technology, Linux has become one of the most widely used technologies in the field of cloud computing. The following will introduce the core technical principles of Linux cloud computing and illustrate them with ** examples.
1. Linux operating system.
The Linux operating system is an open-source operating system with strong stability and security. In cloud computing, the Linux operating system is widely used in technical fields such as servers, virtualization, and containers.
2. Virtualization technology.
Virtualization technology is one of the core technologies of cloud computing, which can virtualize physical hardware resources into multiple virtual resources, so as to achieve resource sharing, flexible scheduling and efficient utilization. Common Linux virtualization technologies include KVM and Docker.
kvm（kernel-based virtual machine）
KVM is a Linux kernel-based virtualization technology that enables full virtualization on x86 CPUs. With KVM, physical hardware resources can be virtualized into multiple virtual machines, each of which can run an independent operating system.
Here's an example of a simple KVM virtual machine creation:
bash reproduction**.
Docker container technology.
Docker is a containerization technology based on Linux container (LXC) technology, which enables rapid deployment and management of applications. With Docker, applications and their dependencies can be packaged into a single container, enabling rapid deployment and management of applications.
Here's an example of a simple docker container creation:
bash reproduction**.
3. Cloud storage technology.
Cloud storage technology is one of the key technologies used in cloud computing to store and manage large amounts of data. Common Linux cloud storage technologies include CEPH and SWIFT.
CEPH distributed storage system.
CEPH is an open-source distributed storage system that provides high-performance, high-availability, and scalable storage services. Ceph enables reliable storage and fast access to data by distributing it across multiple nodes.
SWIFT object storage system.
Swift is an object storage component in the OpenStack cloud operating system that provides highly available, scalable, and durable data storage services. SWIFT enables redundant storage and fast access to data by distributing it across multiple nodes.