What does cloud computing (tier 1 and container cloud) mean?

The first layer refers to IaaS, which is based on services and mainly provides the basic resources of virtual devices, such as naked virtual machines, cloud disks, VPCs, etc.

A container cloud is similar to a PaaS layer service. Using namespace and cgroup technology, an independent container is built on the basis of bare metal or virtual machine, and a programmable development environment is provided through CI/CD, which is mainly used for long tasks and batch processing applications.