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[command-reference]: Document what "auto" means in container run #765

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[command-reference]: Document what "auto" means in container run #765

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2535b4b
update command-reference.md for info on auto
saehejkang Oct 15, 2025
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resolve PR comments
saehejkang Oct 16, 2025
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Merge branch 'main' into note-explaining-auto-for-image-pull
saehejkang Oct 17, 2025
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13 changes: 13 additions & 0 deletions docs/command-reference.md
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Expand Up @@ -54,6 +54,19 @@ container run [OPTIONS] IMAGE [COMMAND] [ARG...]
* `--virtualization`: Expose virtualization capabilities to the container (requires host and guest support)
* **Registry options**
* `--scheme <scheme>`: Scheme to use when connecting to the container registry. One of (http, https, auto) (default: auto)

* **Behavior of `auto`**

When `auto` is selected, the target registry is considered **internal/local** if the registry host matches any of these criteria:
- The host is a loopback address (e.g., `localhost`, `127.*`)
- The host is within the `RFC1918` private IP ranges:
- `10.*.*.*`
- `192.168.*.*`
- `172.16.*.*` through `172.31.*.*`
- The host ends with the machine’s default container DNS domain (as defined in `DefaultsStore.Keys.defaultDNSDomain`, located [here](../Sources/ContainerPersistence/DefaultsStore.swift))

For internal/local registries, the client uses **HTTP**. Otherwise, it uses **HTTPS**.

* **Progress options**
* `--disable-progress-updates`: Disable progress bar updates
* **Global options**
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