1. daemon-less Image Build Tools 1.1 What Is a daemon-less Image Build Tool In a CICD pipeline, image builds come up often, and the conventional approach is to build with Docker in Docker or Docker out of Docker. For details, see: How to Use Docker in Docker In fact, to avoid monopolies and advance the industry, a unified OCI image format specification based on the Docker image format was defined long ago.

1. Typical Use Cases In CI, there is usually a CI Engine responsible for parsing the pipeline and controlling the whole build process, while the actual build is delegated to an Agent. Jenkins and GitLab both work this way. As shown below, there are many kinds of Agents that connect to the CI Engine.

Kubernetes relies on the kube-proxy component to implement Service communication and load balancing. In this process, because SNAT is used to translate the source address, a service in a Pod cannot obtain the real client IP address. This article mainly answers the question of how a workload in a Kubernetes cluster can obtain the real IP address of the client.

This post mainly covers how to operate and maintain a DevOps pipeline, and how to solve some common problems. The problems fall mainly into two categories: one is Kubernetes-related and fairly general in nature; the other is business-related and requires some understanding of the domain before you can solve problems

KubeSphere DevOps consists of two parts: S2I and Pipeline. In the community, OpenShift provides an application packaging tool called S2I; for details, see Building Cloud-Native Applications with S2I . KubeSphere turned it into a service, using a CRD managed by a separate Operator, and its functionality is fairly self-contained. In 3.