我希望 Jenkinsfile 执行的基本示例:

看来我需要将 docker 安装到正在执行我的 Jenkinsfile 的 Jenkins 从属映像上.有没有一种简单的方法可以做到这一点?(那个 Jenkins 从镜像本身就是一个 docker 容器)

我的假设正确吗?

由于我还需要访问gcloud"命令(我通过 Kubernetes Helm/Charts 运行 Jenkins)，我一直在使用 gcr.io/cloud-solutions-images/jenkins-k8s-我的 Jenkins 奴隶的奴隶图像.

目前错误提示docker: not found"

我的假设是你想 docker build 在 Jenkins slave(这是一个 Kubernetes pod，我假设由

请注意，您使用不同的图像(您可以创建自己的图像并在其中添加任何您想要的二进制文件)，并且您将 Docker 套接字安装在容器内.

正如我所说，JNLP 映像将启动您在同一个 pod 中指定的容器.请注意，为了从容器中使用 Docker，您仍然需要挂载 Docker sock.

这是我发现在容器内运行的 Jenkins JNLP slave 中构建映像的两种方法.

该示例还展示了如何使用来自 Jenkins 的凭据绑定推送映像，以及如何在构建过程中更新 Kubernetes 部署.

更多资源:

谢谢，拉杜M

Basic example of what I want my Jenkinsfile to do:

It seems like I need to install docker onto the Jenkins slave image that's executing my Jenkinsfile. Is there an easy way of doing this? (That Jenkins slave image is itself a docker container)

Are my assumptions correct?

Since I also need access to the 'gcloud' command (I'm running Jenkins via Kubernetes Helm/Charts), I've been using the gcr.io/cloud-solutions-images/jenkins-k8s-slave image for my Jenkins slave.

Currently it errors out saying "docker: not found"

My assumption is that you want to docker build inside the Jenkins slave (which is a Kubernetes pod, I assume created by the Kubernetes Jenkins Plugin)

To set the stage, when Kubernetes creates pod that will act as a Jenkins slave, all commands that you execute inside the node will be executed inside that Kubernetes pod, inside one of the containers there (by default there will only be one container, but more on this later).

So you are actually trying to run a Docker command inside a container based on gcr.io/cloud-solutions-images/jenkins-k8s-slave, which is most likely based on the official Jenkins JNLP Slave, which does not container Docker!

From this point forward, there are two approaches that you can take:

Here is a complete view of how to configure the Jenkins Plugin:

Note that you use a different image (you can create your own and add any binary you want there) and that you mount the Docker socket inside the container.

Here is the full file from the image below

Here is the Jenkins Plugin documentation for doing this

As I said, the JNLP image will start a container that you specify in the same pod. Note that in order to use Docker from a container you still need to mount the Docker sock.

These are the two ways I found to achieve building images inside a Jenkins JNLP slave running inside a container.

The example also shows how to push the image using credential bindings from Jenkins, and how to update a Kubernetes deployment as part of the build process.

Some more resources:

Thanks, Radu M

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