we have customers who do not overwrite image tags, but instead push new tags to an existing image. when updating an image/tag value via coder parameters, the workspace does not inherit the change.

steps to reproduce

1. initial template with image tag & k8s pod

data "coder_parameter" "image" {
  name    = "image"
  type    = "string"
  mutable = "true"
  option {
    value = "ericpaulsen/code-server:v1"
    name  = "code-server"
  }
}

resource "kubernetes_pod" "main" {
  spec {
    container {
      image             = "docker.io/${data.coder_parameter.image.value}"
      image_pull_policy = "Always"
    }
  }
}

2. push new version of the template with new tag

data "coder_parameter" "image" {
  name    = "image"
  type    = "string"
  mutable = "true"
  option {
    value = "ericpaulsen/code-server:v2"
    name  = "code-server"
  }
}

3. rebuild workspace to apply new template version

upon rebuild, the kubernetes pod is shown to have pulled the old image tag v1:

Normal  Pulled  52s  kubelet  Successfully pulled image "docker.io/ericpaulsen/code-server:v1"

4. manually edit the workspace parameters in the UI

navigate to Settings > Parameters and notice that the image parameters is unset, while all other parmameters (mutable & non-mutable) are set correctly.

5. set the image value and rebuild workspace

when selecting ericpaulsen/code-server and clicking Submit, the workspace rebuilds, and correctly inherits the updated value with the new image and tag.