Execution containers for workers: Extending the Octopus worker-tools Docker image

Execution Containers for Workers, recently released by Octopus, offer a flexible and efficient solution for managing deployment processes by allowing users to extend or create Docker images tailored to their specific needs. The octopusdeploy/worker-tools Docker image serves as a comprehensive base with most deployment tools included, but users can customize it by adding additional tools, like mssql-cli, or updating existing ones, such as a newer version of PowerShell. By modifying the Dockerfile, users can create streamlined images that suit their deployment processes, potentially reducing image size and improving deployment efficiency. This approach not only facilitates version-controlled software dependencies and minimizes installation conflicts but also optimizes resource usage by reducing the number of Worker machines required, which can lead to cost savings. The ability to customize Docker images provides users with both immediate functionality and the flexibility to extend capabilities, enhancing the deployment process and reducing execution times.