This is a custom Azure Pipelines agent built using docker and based upon the Centos7 image.
Microsoft maintains a set of virtual environments for Github actions and Microsoft-hosted agents for Azure pipelines. As you can see, there is no Centos7 based agent. If you ever find yourself in a situation where you need your agent to run on CentOS - you will be sad.
Anyone who uses Azure Pipelines to run jobs where they require a specialized set of dependencies that includes CentOS.
A Dockerfile and an entry in the docker repo
The Azure Pipelines agent must be started with account connection information, provided through environment variables:
| Env Vatiable | Description | Example |
|---|---|---|
| AZP_URL | required Url to the Azure DevOps account | https://dev.azure.com/your-org |
| AZP_TOKEN | required Azure DevOps user account personal access token (PAT) granting access to the AZP_URL | abcdefg |
| AZP_AGENT_NAME | optional Name of the agent. If not specified, the container's hostname is used | mydockeragent |
| AZP_POOL | optional Azure Pipelines agent pool name. If not specified, Default is used. | My Custom Agent Pool |
| AZP_WORK | optional Work directory. If not specified, _work is used. | _work |
Example:
docker run
-e AZP_URL=https://dev.azure.com/org
-e AZP_TOKEN=abcdefgh
-e AZP_AGENT_NAME=mydockeragent
azure-pipelines-centos7-agent:latest
Once the agent is running, it will appear in the list of agents in the specified DevOps pipeline agent pool.