Terraform Docker Provider: Handling Image Attribute Changes Gracefully

When managing Docker containers with Terraform, the Docker provider transforms the `image` attribute into a SHA digest. This leads to subsequent Terraform refreshes incorrectly detecting image changes and forcing container rebuilds. Simply using `lifecycle { ignore_changes = [image] }` masks actual image changes, creating a potential risk. This article presents a solution: leverage a `null_resource` as a trigger. When the `image` attribute changes, the `null_resource` rebuilds, indirectly triggering a container rebuild, ensuring image updates while avoiding unnecessary container recreation.