testutil: pin busybox and alpine used in releases

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
(cherry picked from commit 1e556da)

util/testutil/integration/pins.go

@@ -0,0 +1,15 @@
+package integration
+
+var pins = map[string]map[string]string{
+	// busybox is pinned to 1.35. Newer produces has "illegal instruction" panic on some of Github infra on sha256sum
+	"busybox:latest": {
+		"amd64":   "sha256:0d5a701f0ca53f38723108687add000e1922f812d4187dea7feaee85d2f5a6c5",
+		"arm64":   "sha256:ffe38d75e44d8ffac4cd6d09777ffc31e94ea0ded6a0164e825a325dc17a3b68",
+		"library": "sha256:f4ed5f2163110c26d42741fdc92bd1710e118aed4edb19212548e8ca4e5fca22",
+	},
+	"alpine:latest": {
+		"amd64":   "sha256:c0d488a800e4127c334ad20d61d7bc21b4097540327217dfab52262adc02380c",
+		"arm64":   "sha256:af06af3514c44a964d3b905b498cf6493db8f1cde7c10e078213a89c87308ba0",
+		"library": "sha256:8914eb54f968791faf6a8638949e480fef81e697984fba772b3976835194c6d4",
+	},
+}

util/testutil/integration/run.go

@@ -264,12 +264,18 @@ func OfficialImages(names ...string) map[string]string {
 	ns := runtime.GOARCH
 	if ns == "arm64" {
 		ns = "arm64v8"
-	} else if ns != "amd64" && ns != "armhf" {
+	} else if ns != "amd64" {
 		ns = "library"
 	}
 	m := map[string]string{}
 	for _, name := range names {
-		m["library/"+name] = "docker.io/" + ns + "/" + name
+		ref := "docker.io/" + ns + "/" + name
+		if pns, ok := pins[name]; ok {
+			if dgst, ok := pns[ns]; ok {
+				ref += "@" + dgst
+			}
+		}
+		m["library/"+name] = ref
 	}
 	return m
 }