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chore: add info re: always updating images (#2635)

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Katie Horne
2022-06-28 14:06:54 -05:00
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commit 09cb778620
1 changed files with 23 additions and 1 deletions
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24
docs/templates.md
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@ -162,6 +162,28 @@ resource "docker_container" "workspace" {
}
```
#### Using updated images when rebuilding a workspace
To ensure that Coder uses an updated image when rebuilding a workspace, we
suggest that admins update the tag in the template (e.g., `my-image:v0.4.2` ->
`my-image:v0.4.3`) or digest (`my-image@sha256:[digest]` ->
`my-image@sha256:[new_digest]`).
Alternatively, if you're willing to wait for longer start times from Coder, you
can set the `imagePullPolicy` to `Always` in your Terraform template; when set,
Coder will check `image:tag` on every build and update if necessary:
```tf
resource "kubernetes_pod" "podName" {
spec {
container {
image_pull_policy = "Always"
}
}
}
```
#### Delete workspaces
When a workspace is deleted, the Coder server essentially runs a
@ -172,7 +194,7 @@ resources associated with the workspace.
> [prevent-destroy](https://www.terraform.io/language/meta-arguments/lifecycle#prevent_destroy)
> and
> [ignore-changes](https://www.terraform.io/language/meta-arguments/lifecycle#ignore_changes)
> meta-arguments can be used to accidental data loss.
> meta-arguments can be used to accidental data loss.
### Coder apps