write missing policy.json file

Author: cheesesashimi

test/e2e-ocl/imagepruner_test.go

@@ -6,6 +6,7 @@ import (
 	"errors"
 	"flag"
 	"fmt"
+	"log"
 	"os"
 	"os/exec"
 	"path/filepath"
@@ -792,9 +793,22 @@ func createAndPushScratchImage(ctx context.Context, t *testing.T, pullspec, secr
 		return err
 	}
 
-	cmd := exec.Command("skopeo", "copy", "--dest-authfile", secretPath, "tarball://"+srcImage, "docker://"+pullspec)
+	policyPath := filepath.Join(t.TempDir(), "policy.json")
+	// Taken from /etc/containers/policy.json and compacted.
+	policyJSONBytes := []byte(`{"default":[{"type":"insecureAcceptAnything"}],"transports":{"docker-daemon":{"":[{"type":"insecureAcceptAnything"}]}}}`)
+	if err := os.WriteFile(policyPath, policyJSONBytes, 0o755); err != nil {
+		return err
+	}
+
+	defer func() {
+		if err := os.RemoveAll(tmpDir); err != nil {
+			log.Fatalln(err)
+		}
+	}()
+
+	cmd := exec.Command("skopeo", "--policy", policyPath, "copy", "--dest-authfile", secretPath, "tarball://"+srcImage, "docker://"+pullspec)
 	if certsDir != "" {
-		cmd = exec.Command("skopeo", "copy", "--dest-cert-dir", certsDir, "--dest-authfile", secretPath, "tarball://"+srcImage, "docker://"+pullspec)
+		cmd = exec.Command("skopeo", "--policy", policyPath, "copy", "--dest-cert-dir", certsDir, "--dest-authfile", secretPath, "tarball://"+srcImage, "docker://"+pullspec)
 	}
 
 	t.Logf("Copying %s to %s using skopeo", srcImage, pullspec)