Pulumi Docker Containers offer flexibility and convenience for running Pulumi in CI/CD environments without directly installing the CLI, providing several image options including a comprehensive pulumi/pulumi image and slim, language-specific images like pulumi/pulumi-python or pulumi/pulumi-nodejs. These images support versioned language runtimes, allowing users to specify versions for Python, Node.js, and .NET, while Go versions are managed through the Go Toolchains feature. Pulumi Deployments now support setting runtime versions using files like .node-version and .python-version, and the default images will be updated to the latest versions of supported languages by November 2024, ensuring compatibility with new language releases. Additionally, the images come with tools like Poetry and pnpm pre-installed, enhancing the ease of managing dependencies across various environments, whether using Pulumi's CLI, Docker images, GitHub Actions, or Pulumi Deployments.