Provider Domain Google App Engine appspot.com second-level domain Sina App Engine sinaapp.com second-level domain Baidu App Engine duapp.com second-level domain Heroku herokuapp.com second-level domain AWS Elastic Beanstalk elasticbeanstalk.com second-level domain OpenShift rhcloud.com second-level domain DaoCloud daocloud.io second-level domain TenxCloud tenxapp.com second-level domain Alauda myalauda.cn second-level domain

1. About PaaS 1.1 What Is PaaS PaaS is short for Platform as a Service, a type of cloud computing service that provides a computing platform along with solution services. The emergence of PaaS accelerated the growth of SaaS, and in particular sped up the development of SaaS applications. For example, when developing SaaS, using the login, database, cache, and other services uniformly provided by a PaaS platform greatly reduces the manpower and cost of building those services.

1. User Scenarios for Hybrid Cloud 1.1 Handling Explosive Business Growth Internet businesses grow exponentially, and it is hard to predict how much infrastructure capacity to reserve. Usually, for a long stretch in the early days of a business, a small colocation footprint of physical machines is enough to meet demand.

1. Basic Concepts master master is where Jenkins is installed and runs; it is responsible for parsing job scripts, handling tasks, and scheduling compute resources. agent agent is responsible for handling tasks dispatched from master; the actual operations are executed through an executor. executor An executor is the compute resource

1. Basic Concepts GitLab-CI: the continuous integration system provided by GitLab. It manages the build status of a project and runs build tasks through GitLab Runner. GitLab-Runner: used to execute build tasks. The script portion of .gitlab-ci.yml is run by GitLab-Runner. .gitlab-ci.yml: a file in the root directory of a git project that records a series of stages and execution rules.