I read this article. Assign specific agent on Azure DevOps YAML Pipelines

When i run my CI pipeline a Dockerfile is executed as well. This Dockerfile pulls a base image and then build my code image.

When we investigated if time to build Dockerfile is X min, 90% of X min is actually spent in downloading base image itself.

We are using MS hosted agents currently.

Does MS agents recycle themself each time its called by any user?. I mean if i try to call MS hosted same agent machine again will it still HOLD base image from last pipeline call?

CodePudding user response：

In the MS hosted agents, each time you run a pipeline, you get a fresh virtual machine. The virtual machine is discarded after one job finished, which means any change that a job makes to the virtual machine file system, such as pulls a base image, will be unavailable to the next job. So if you want to minimize the time which you spent for pulling the image, use a Self-hosted agent. You can even use your local PC as a Self-hosted agent.