Add --platform to cosign CLI examples (#437)

ktdreyer · web-flow · commit c6128d9ff5b3 · 2025-09-02T08:32:58.000-04:00
Without --platform, multi-arch images return only the image index SBOM
instead of actual software packages.
diff --git a/modules/metadata/pages/sboms.adoc b/modules/metadata/pages/sboms.adoc
@@ -54,7 +54,7 @@ In the CLI, complete the following steps to download the SBOM for a component:
 +
 [source]
 ----
-$ cosign download sbom $IMAGE
+$ cosign download sbom --platform linux/amd64 $IMAGE
 ----
 
 +
@@ -63,7 +63,7 @@ $ cosign download sbom $IMAGE
 +
 [source]
 ----
-$ cosign download sbom $IMAGE > sbom.txt
+$ cosign download sbom --platform linux/amd64 $IMAGE > sbom.txt
 ----
 
 == Reading the SBOM

Original file line number	Diff line number	Diff line change
`@@ -54,7 +54,7 @@ In the CLI, complete the following steps to download the SBOM for a component:`
`54`	`54`	`+`
`55`	`55`	`[source]`
`56`	`56`	`----`
`57`		`-$ cosign download sbom $IMAGE`
	`57`	`+$ cosign download sbom --platform linux/amd64 $IMAGE`
`58`	`58`	`----`
`59`	`59`
`60`	`60`	`+`
`@@ -63,7 +63,7 @@ $ cosign download sbom $IMAGE`
`63`	`63`	`+`
`64`	`64`	`[source]`
`65`	`65`	`----`
`66`		`-$ cosign download sbom $IMAGE > sbom.txt`
	`66`	`+$ cosign download sbom --platform linux/amd64 $IMAGE > sbom.txt`
`67`	`67`	`----`
`68`	`68`
`69`	`69`	`== Reading the SBOM`