1. Synopsis
Section titled “1. Synopsis”Discover prefix-matched images and their VMs; --yes performs cleanup
microvm gc --prefix <string> [options]2. Parameters
Section titled “2. Parameters”| Parameter | Kind | Type | Required | Default | Choices | Help |
|---|---|---|---|---|---|---|
--region |
flag | string |
no | none | any | AWS region. Defaults to $AWS_REGION, then $AWS_DEFAULT_REGION, then us-east-1 |
--unlisted-region |
flag | string |
no | none | any | Deprecated since 1.3.0: --region takes any region name |
--prefix |
flag | string |
yes | none | any | Match image names starting with this nonempty prefix |
--keep |
flag | string |
no | none | any | Preserve this exact image name or ARN, together with all its VMs. Repeatable |
--yes |
flag | boolean |
no | none | any | Terminate VMs and delete images. Without this flag, only report candidates |
The 3 global flags (--json, --dense, --quiet) are accepted here as on every command, and are left out of the table above for that reason; see Global flags.
3. Response
Section titled “3. Response”On success stdout carries one envelope whose type is microvm.gc. Its data object carries these keys: dryRun, imagesMatched, imagesKept, microvmsMatched, microvmsTerminated, imagesDeleted, imagesInUse, failures.
The envelope describes the fields around data. Response types lists every type the CLI emits and which commands share each one.
4. Failures
Section titled “4. Failures”A failure exits with one of the statuses on Exit codes and writes the error shape on The envelope: a stable code to branch on, an exitCode that matches the process status, a human-readable error, and suggestions.
Where a failure is one this project has measured on the platform, the envelope’s finding names the section of the platform notes that documents it. The exit-code table links each one.
5. Provenance
Section titled “5. Provenance”This page is generated from docs/manifest.json, the output of microvm manifest, which the CLI derives from its own argument tree. This page reads the gc entry of data.commands. site/scripts/gen-reference.mjs writes it into the site’s content directory on every pnpm run sync, so an edit made here is overwritten by the next run.
To change the page, change the source. Regenerate the source with mise run manifest from the repository root; mise run manifest:check fails when the committed file no longer matches what the binary emits.