bats test: add a backup image to avoid network errors

Signed-off-by: Qinqi Qu <quqinqi@linux.alibaba.com>

tests/bats/run_container_with_rafs_and_compile_linux.bats

@@ -1,15 +1,22 @@
 load "${BATS_TEST_DIRNAME}/common_tests.sh"
 
 setup() {
-	nydus_rafs_image="ghcr.io/dragonflyoss/image-service/bldlinux:v0.1-rafs-v6-lz4"
+	nydus_rafs_image="docker.io/openanolis/bldlinux:v0.1-rafs-v6-lz4"
+	nydus_rafs_image_bak="ghcr.io/dragonflyoss/image-service/bldlinux:v0.1-rafs-v6-lz4"
 	run_nydus_snapshotter
 	config_containerd_for_nydus
 	ctr images ls | grep -q "${nydus_rafs_image}" && ctr images rm $nydus_rafs_image
-	ctr-remote images rpull $nydus_rafs_image
+	nerdctl pull --snapshotter=nydus $nydus_rafs_image
+	ctr images ls | grep -q "${nydus_rafs_image_bak}" && ctr images rm $nydus_rafs_image_bak
+	nerdctl pull --snapshotter=nydus $nydus_rafs_image_bak
 }
 
 @test "run container with rafs and compile linux" {
 	nerdctl run --rm --net=host --snapshotter=nydus $nydus_rafs_image /bin/bash -c 'cd /linux-5.10.87; make defconfig; make -j8'
+	if [ $? -ne 0 ]; then
+		nydus_rafs_image=${nydus_rafs_image_bak}
+		nerdctl run --rm --net=host --snapshotter=nydus $nydus_rafs_image /bin/bash -c 'cd /linux-5.10.87; make defconfig; make -j8'
+	fi
 	echo "drop cache and compile linux in container again"
 	echo 3 > /proc/sys/vm/drop_caches
 	nerdctl run --rm --net=host --snapshotter=nydus $nydus_rafs_image /bin/bash -c 'cd /linux-5.10.87; make defconfig; make -j8'