iSulad oci images store

Signed-off-by: Nwujing <wujing50@huawei.com>

src/constants.h

@@ -50,6 +50,8 @@
 
 #define ETC_FILE_MODE 0755
 
+#define IMAGE_STORE_PATH_MODE 0700
+
 #define ISULAD_CONFIG "/etc/isulad"
 
 #define ISULAD_DAEMON_JSON_CONF_FILE ISULAD_CONFIG "/daemon.json"

src/image/oci/storage/image_store/image_store.h

+/******************************************************************************
+ * Copyright (c) Huawei Technologies Co., Ltd. 2020-2020. All rights reserved.
+ * iSulad licensed under the Mulan PSL v1.
+ * You can use this software according to the terms and conditions of the Mulan PSL v1.
+ * You may obtain a copy of Mulan PSL v1 at:
+ *     http://license.coscl.org.cn/MulanPSL
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR
+ * PURPOSE.
+ * See the Mulan PSL v1 for more details.
+ * Author: wujing
+ * Create: 2020-03-13
+ * Description: provide images module interface definition
+ ******************************************************************************/
+#ifndef __OCI_STORAGE_IMAGES_H
+#define __OCI_STORAGE_IMAGES_H
+
+#include <stdbool.h>
+#include <string.h>
+#include <pthread.h>
+#include "storage_image.h"
+#include "timestamp.h"
+#include "map.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// the name of the big data item whose contents we consider useful for computing a "digest" of the
+// image, by which we can locate the image later.
+#define IMAGE_DIGEST_BIG_DATA_KEY "manifest"
+#define IMAGE_NAME_LEN            64
+
+
+typedef struct file_locker {
+    // key: string  value: struct flock
+    map_t *lock_files;
+    pthread_mutex_t lock_files_lock;
+} file_locker_t;
+
+typedef struct digest_image {
+    storage_image **images;
+    size_t images_len;
+} digest_image_t;
+
+typedef struct image_store {
+    file_locker_t lockfile;
+    file_locker_t rolockfile;
+    char *dir;
+    storage_image **images;
+    size_t images_len;
+    map_t *idindex;
+    map_t *byid;
+    map_t *byname;
+    map_t *bydigest;
+
+    // flag for daemon
+    bool daemon;
+    bool loaded;
+} image_store_t, *image_store_ptr;
+
+// // ROImageStore interface: Provides bookkeeping for information about Images.
+// typedef struct ro_image_store_ops {
+// // TODO: ROFileBasedStore
+// // TODO: ROMetadataStore
+// // TODO: ROBigDataStore
+//
+// // Check if there is an image with the given ID or name.
+// bool (*exists)(const char *id);
+//
+// // Retrieve information about an image given an ID or name.
+// int (*get)(const char *id, storage_image *image);
+//
+// // Attempt to translate a name to an ID.  Most methods do this implicitly.
+// int (*lookup)(const char *name, char **id);
+//
+// // Return a slice enumerating the known images.
+// int (*images)(storage_image **images, size_t *len);
+//
+// // Return a slice enumerating the images which have a big data
+// // item with the name ImageDigestBigDataKey and the specified digest.
+// int (*by_digest)(storage_image **images, size_t *len);
+// } ro_image_store_ops_t;
+//
+// // ImageStore interface: Provides bookkeeping for information about Images.
+// typedef struct image_store_opt {
+// // ROImageStore
+// // RWFileBasedStore
+// // RWMetadataStore
+// // RWBigDataStore
+// // FlaggableStore
+//
+// // Create an image that has a specified ID (or a random one) and
+// // optional names, using the specified layer as its topmost (hopefully
+// // read-only) layer.  That layer can be referenced by multiple images.
+// int (*create)(const char *id, const char **names, size_t names_len, const char *layer, const char *metadata,
+//         timestamp time, const char *searchable_digest, storage_image *image);
+//
+// // Replace the list of names associated with an image with the supplied values.
+// int (*set_names)(const char *id, const char **names, size_t names_len);
+//
+// // Remove the record of the image.
+// int (*delete)(const char *id);
+//
+// // Remove records of all images
+// int (*wipe)();
+//
+// // Set the image pulled time
+// int (*set_loaded_time)(const char *id, timestamp loaded);
+//
+// // Add the name for an image. Duplicate names are removed from the list automatically.
+// int (*add_name)(const char *id, const char *name);
+// } image_store_ops_t;
+//
+int new_image_store(bool daemon, bool readonly, const char *dir, image_store_t **image_store);
+void free_image_store(image_store_t *image_store);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __OCI_STORAGE_IMAGES_H */
+

src/json/schema/schema/storage/image.json

+{
+  "$schema": "http://json-schema.org/draft-04/schema#",
+  "type": "object",
+  "properties": {
+    "id": {
+      "type": "string"
+    },
+    "digest": {
+      "type": "string"
+    },
+	"names": {
+		"type": "array",
+		"items": {
+			"type": "string"
+		}
+    },
+    "layer": {
+      "type": "string"
+    },
+    "mapped-layers": {
+		"type": "array",
+		"items": {
+			"type": "string"
+		}
+    },
+    "metadata": {
+      "type": "string"
+    },
+    "big-data-names": {
+		"type": "array",
+		"items": {
+			"type": "string"
+		}
+    },
+    "big-data-sizes": {
+        "$ref": "../defs.json#/definitions/mapStringInt64"
+    },
+    "big-data-digests": {
+        "$ref": "../defs.json#/definitions/mapStringString"
+    },
+    "created": {
+        "type": "string"
+    },
+    "loaded": {
+        "type": "string"
+    }
+  }
+}

src/plugin/plugin.c

@@ -75,6 +75,8 @@ static int plugin_event_post_remove_handle(const plugin_t *plugin, const char *c
 
 enum plugin_action { ACTIVE_PLUGIN, DEACTIVE_PLUGIN };
 
+plugin_manager_t *g_plugin_manager;
+
 static inline int check_err(int err, const char *msg)
 {
     if (err) {

test/CMakeLists.txt

@@ -37,10 +37,10 @@ find_package(GTest REQUIRED)
 include_directories(${GTEST_INCLUDE_DIR})
 include_directories(${GMOCK_INCLUDE_DIRS})
 
-add_subdirectory(cutils)
+# add_subdirectory(cutils)
 add_subdirectory(image)
-add_subdirectory(path)
-add_subdirectory(cmd)
-add_subdirectory(runtime)
-add_subdirectory(specs)
-add_subdirectory(services)
+# add_subdirectory(path)
+# add_subdirectory(cmd)
+# add_subdirectory(runtime)
+# add_subdirectory(specs)
+# add_subdirectory(services)

test/image/oci/CMakeLists.txt

 project(iSulad_UT)
 
-add_subdirectory(oci_config_merge)
+# add_subdirectory(oci_config_merge)
+add_subdirectory(storage)

test/image/oci/storage/CMakeLists.txt

+project(iSulad_LLT)
+
+add_subdirectory(images)

test/image/oci/storage/images/CMakeLists.txt

+project(iSulad_LLT)
+
+SET(EXE storage_images_llt)
+
+add_executable(${EXE}
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../../../src/cutils/utils.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../../../src/cutils/utils_regex.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../../../src/cutils/utils_verify.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../../../src/cutils/utils_array.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../../../src/cutils/utils_string.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../../../src/cutils/utils_convert.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../../../src/cutils/utils_file.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../../../src/cutils/util_atomic.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../../../src/log.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../../../src/sha256/sha256.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../../../src/path.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../../../src/map/map.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../../../src/map/rb_tree.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../../../src/json/schema/src/read_file.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../../../src/types_def.c
+    ${CMAKE_BINARY_DIR}/json/json_common.c
+    ${CMAKE_BINARY_DIR}/json/defs.c
+    ${CMAKE_BINARY_DIR}/json/storage_image.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../../../src/image/oci/storage/image_store/image_store.c
+    storage_images_llt.cc)
+
+target_include_directories(${EXE} PUBLIC
+    ${GTEST_INCLUDE_DIR}
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../../include
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../../../src
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../../../src/cutils
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../../../src/map
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../../../src/sha256
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../../../src/json/schema/src
+    ${CMAKE_BINARY_DIR}/conf
+    ${CMAKE_BINARY_DIR}/json
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../../../src/image/oci/storage/image_store
+    )
+
+target_link_libraries(${EXE} ${GTEST_BOTH_LIBRARIES} ${GMOCK_LIBRARY} ${GMOCK_MAIN_LIBRARY} ${CMAKE_THREAD_LIBS_INIT} -lwebsockets -lcrypto -lyajl -lz)

test/image/oci/storage/images/data/39891ff67da98ab8540d71320915f33d2eb80ab42908e398472cab3c1ce7ac10/=c2hhMjU2OjM5ODkxZmY2N2RhOThhYjg1NDBkNzEzMjA5MTVmMzNkMmViODBhYjQyOTA4ZTM5ODQ3MmNhYjNjMWNlN2FjMTA=

+{"architecture":"amd64","config":{"Hostname":"","Domainname":"","User":"","AttachStdin":false,"AttachStdout":false,"AttachStderr":false,"Tty":false,"OpenStdin":false,"StdinOnce":false,"Env":["PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"],"Cmd":["/bin/bash"],"Image":"","Volumes":null,"WorkingDir":"","Entrypoint":null,"OnBuild":null,"Labels":{"build-date":"20161102","license":"GPLv2","name":"CentOS Base Image","vendor":"CentOS"}},"container":"cdf7e99e9fd8332d199ea8ff4bde6e0ad561c3e67858b50b9b2c788fe7d70e25","container_config":{"Hostname":"cdf7e99e9fd8","Domainname":"","User":"","AttachStdin":true,"AttachStdout":true,"AttachStderr":true,"Tty":true,"OpenStdin":true,"StdinOnce":true,"Env":["PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"],"Cmd":["/bin/bash"],"Image":"rnd-dockerhub.huawei.com/official/centos","Volumes":null,"WorkingDir":"","Entrypoint":null,"OnBuild":null,"Labels":{"build-date":"20161102","license":"GPLv2","name":"CentOS Base Image","vendor":"CentOS"}},"created":"2017-07-10T12:46:57.770791248Z","docker_version":"1.12.5","history":[{"created":"2016-08-30T18:18:45.109943798Z","author":"https://github.com/CentOS/sig-cloud-instance-images","created_by":"/bin/sh -c #(nop)  MAINTAINER https://github.com/CentOS/sig-cloud-instance-images","empty_layer":true},{"created":"2016-11-02T19:52:05.364657474Z","author":"https://github.com/CentOS/sig-cloud-instance-images","created_by":"/bin/sh -c #(nop) ADD file:54df3580ac9fb66389b09230a74115a49ace2d193603bce0b5786dcb2957eb52 in / "},{"created":"2016-11-02T19:52:08.624010471Z","author":"https://github.com/CentOS/sig-cloud-instance-images","created_by":"/bin/sh -c #(nop)  LABEL name=CentOS Base Image vendor=CentOS license=GPLv2 build-date=20161102","empty_layer":true},{"created":"2016-11-02T19:52:09.463959047Z","author":"https://github.com/CentOS/sig-cloud-instance-images","created_by":"/bin/sh -c #(nop)  CMD [\"/bin/bash\"]","empty_layer":true},{"created":"2017-07-10T12:46:57.770791248Z","created_by":"/bin/bash"}],"os":"linux","rootfs":{"type":"layers","diff_ids":["sha256:97ca462ad9eeae25941546209454496e1d66749d53dfa2ee32bf1faabd239d38","sha256:200e885dbd78b1cbc2b5e2142b1140d49548358434d77b1312645dda482f3dcf"]}}
\ No newline at end of file

test/image/oci/storage/images/data/39891ff67da98ab8540d71320915f33d2eb80ab42908e398472cab3c1ce7ac10/image.json

+{"id":"39891ff67da98ab8540d71320915f33d2eb80ab42908e398472cab3c1ce7ac10","digest":"sha256:94192fe835d92cba5513297aad1cbcb32c9af455fb575e926ee5ec683a95e586","names":["rnd-dockerhub.huawei.com/official/centos:latest"],"layer":"edd34c086208711c693a7b7a3ade23e24e6170ae24d8d2dab7c4f3efca61d509","metadata":"{}","big-data-names":["sha256:39891ff67da98ab8540d71320915f33d2eb80ab42908e398472cab3c1ce7ac10","manifest"],"big-data-sizes":{"manifest":741,"sha256:39891ff67da98ab8540d71320915f33d2eb80ab42908e398472cab3c1ce7ac10":2235},"big-data-digests":{"sha256:39891ff67da98ab8540d71320915f33d2eb80ab42908e398472cab3c1ce7ac10":"sha256:39891ff67da98ab8540d71320915f33d2eb80ab42908e398472cab3c1ce7ac10","manifest":"sha256:94192fe835d92cba5513297aad1cbcb32c9af455fb575e926ee5ec683a95e586"},"created":"2017-07-10T12:46:57.770791248Z","loaded":"2020-03-16T03:46:12.172621513Z"}

test/image/oci/storage/images/data/39891ff67da98ab8540d71320915f33d2eb80ab42908e398472cab3c1ce7ac10/manifest

+{
+   "schemaVersion": 2,
+   "mediaType": "application/vnd.docker.distribution.manifest.v2+json",
+   "config": {
+      "mediaType": "application/vnd.docker.container.image.v1+json",
+      "size": 2235,
+      "digest": "sha256:39891ff67da98ab8540d71320915f33d2eb80ab42908e398472cab3c1ce7ac10"
+   },
+   "layers": [
+      {
+         "mediaType": "application/vnd.docker.image.rootfs.diff.tar.gzip",
+         "size": 72143866,
+         "digest": "sha256:c3266e177770c798f64a4c66ad70e3f7f2808d540ea505c0dda53c954b662f83"
+      },
+      {
+         "mediaType": "application/vnd.docker.image.rootfs.diff.tar.gzip",
+         "size": 87979599,
+         "digest": "sha256:afcd23d57ec03a7d8f4d92a6172658b353778cd523e8b0b0156186fc6df0eda2"
+      }
+   ]
+}
\ No newline at end of file

test/image/oci/storage/images/data/e4db68de4ff27c2adfea0c54bbb73a61a42f5b667c326de4d7d5b19ab71c6a3b/=c2hhMjU2OmU0ZGI2OGRlNGZmMjdjMmFkZmVhMGM1NGJiYjczYTYxYTQyZjViNjY3YzMyNmRlNGQ3ZDViMTlhYjcxYzZhM2I=

+{"architecture":"amd64","config":{"Hostname":"","Domainname":"","User":"","AttachStdin":false,"AttachStdout":false,"AttachStderr":false,"Tty":false,"OpenStdin":false,"StdinOnce":false,"Env":["PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"],"Cmd":["sh"],"ArgsEscaped":true,"Image":"sha256:4a2b8e0900fa6a82523d5c14b646ac03c07f5f79748f63bf95ab2b069370b8f0","Volumes":null,"WorkingDir":"","Entrypoint":null,"OnBuild":null,"Labels":null},"container":"bfd7fa638e592af2b731163aa6e3b58722be2bdbc62defb6114e023e8b0c288c","container_config":{"Hostname":"bfd7fa638e59","Domainname":"","User":"","AttachStdin":false,"AttachStdout":false,"AttachStderr":false,"Tty":false,"OpenStdin":false,"StdinOnce":false,"Env":["PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"],"Cmd":["/bin/sh","-c","#(nop) ","CMD [\"sh\"]"],"ArgsEscaped":true,"Image":"sha256:4a2b8e0900fa6a82523d5c14b646ac03c07f5f79748f63bf95ab2b069370b8f0","Volumes":null,"WorkingDir":"","Entrypoint":null,"OnBuild":null,"Labels":{}},"created":"2019-06-15T00:19:54.402459069Z","docker_version":"18.06.1-ce","history":[{"created":"2019-06-15T00:19:54.271494486Z","created_by":"/bin/sh -c #(nop) ADD file:b265aa0ea2ef7ff1f4a3e087217e75aca2c90f5c345406299664cc7969b2b28e in / "},{"created":"2019-06-15T00:19:54.402459069Z","created_by":"/bin/sh -c #(nop)  CMD [\"sh\"]","empty_layer":true}],"os":"linux","rootfs":{"type":"layers","diff_ids":["sha256:6194458b07fcf01f1483d96cd6c34302ffff7f382bb151a6d023c4e80ba3050a"]}}
\ No newline at end of file

test/image/oci/storage/images/data/e4db68de4ff27c2adfea0c54bbb73a61a42f5b667c326de4d7d5b19ab71c6a3b/image.json

+{"id":"e4db68de4ff27c2adfea0c54bbb73a61a42f5b667c326de4d7d5b19ab71c6a3b","digest":"sha256:64da743694ece2ca88df34bf4c5378fdfc44a1a5b50478722e2ff98b82e4a5c9","names":["rnd-dockerhub.huawei.com/official/busybox:latest"],"layer":"6194458b07fcf01f1483d96cd6c34302ffff7f382bb151a6d023c4e80ba3050a","metadata":"{}","big-data-names":["sha256:e4db68de4ff27c2adfea0c54bbb73a61a42f5b667c326de4d7d5b19ab71c6a3b","manifest"],"big-data-sizes":{"sha256:e4db68de4ff27c2adfea0c54bbb73a61a42f5b667c326de4d7d5b19ab71c6a3b":1497,"manifest":527},"big-data-digests":{"sha256:e4db68de4ff27c2adfea0c54bbb73a61a42f5b667c326de4d7d5b19ab71c6a3b":"sha256:e4db68de4ff27c2adfea0c54bbb73a61a42f5b667c326de4d7d5b19ab71c6a3b","manifest":"sha256:64da743694ece2ca88df34bf4c5378fdfc44a1a5b50478722e2ff98b82e4a5c9"},"created":"2019-06-15T00:19:54.402459069Z","loaded":"2020-03-16T03:46:17.439778957Z"}

test/image/oci/storage/images/data/e4db68de4ff27c2adfea0c54bbb73a61a42f5b667c326de4d7d5b19ab71c6a3b/manifest

+{
+   "schemaVersion": 2,
+   "mediaType": "application/vnd.docker.distribution.manifest.v2+json",
+   "config": {
+      "mediaType": "application/vnd.docker.container.image.v1+json",
+      "size": 1497,
+      "digest": "sha256:e4db68de4ff27c2adfea0c54bbb73a61a42f5b667c326de4d7d5b19ab71c6a3b"
+   },
+   "layers": [
+      {
+         "mediaType": "application/vnd.docker.image.rootfs.diff.tar.gzip",
+         "size": 740169,
+         "digest": "sha256:8f52abd3da461b2c0c11fda7a1b53413f1a92320eb96525ddf92c0b5cde781ad"
+      }
+   ]
+}
\ No newline at end of file

test/image/oci/storage/images/storage_images_llt.cc

+/******************************************************************************
+ * Copyright (c) Huawei Technologies Co., Ltd. 2020-2020. All rights reserved.
+ * iSulad licensed under the Mulan PSL v1.
+ * You can use this software according to the terms and conditions of the Mulan PSL v1.
+ * You may obtain a copy of Mulan PSL v1 at:
+ *     http://license.coscl.org.cn/MulanPSL
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR
+ * PURPOSE.
+ * See the Mulan PSL v1 for more details.
+ * Author: wujing
+ * Create: 2020-03-30
+ * Description: provide oci storage images unit test
+ ******************************************************************************/
+
+#include "image_store.h"
+#include <iostream>
+#include <algorithm>
+#include <tuple>
+#include <fstream>
+#include <climits>
+#include <gtest/gtest.h>
+#include "path.h"
+
+std::string GetDirectory()
+{
+    char abs_path[PATH_MAX];
+    int ret = readlink("/proc/self/exe", abs_path, sizeof(abs_path));
+    if(ret < 0|| (size_t)ret >= sizeof(abs_path)) {
+        return "";
+    }
+
+    for(int i { ret }; i >= 0; --i) {
+        if(abs_path[i]=='/') {
+            abs_path[i + 1]='\0';
+            break;
+        }
+    }
+
+    return static_cast<std::string>(abs_path);
+}
+
+/********************************test data 1: image.json**************************************
+  {
+  "id": "39891ff67da98ab8540d71320915f33d2eb80ab42908e398472cab3c1ce7ac10",
+  "digest": "sha256:94192fe835d92cba5513297aad1cbcb32c9af455fb575e926ee5ec683a95e586",
+  "names": [
+  "rnd-dockerhub.huawei.com/official/centos:latest"
+  ],
+  "layer": "edd34c086208711c693a7b7a3ade23e24e6170ae24d8d2dab7c4f3efca61d509",
+  "metadata": "{}",
+  "big-data-names": [
+  "sha256:39891ff67da98ab8540d71320915f33d2eb80ab42908e398472cab3c1ce7ac10",
+  "manifest"
+  ],
+  "big-data-sizes": {
+  "manifest": 741,
+  "sha256:39891ff67da98ab8540d71320915f33d2eb80ab42908e398472cab3c1ce7ac10": 2235
+  },
+  "big-data-digests": {
+  "sha256:39891ff67da98ab8540d71320915f33d2eb80ab42908e398472cab3c1ce7ac10": "sha256:39891ff67da98ab8540d71320915f33d2eb80ab42908e398472cab3c1ce7ac10",
+  "manifest": "sha256:94192fe835d92cba5513297aad1cbcb32c9af455fb575e926ee5ec683a95e586"
+  },
+  "created": "2017-07-10T12:46:57.770791248Z",
+  "Loaded": "2020-03-16T03:46:12.172621513Z"
+  }
+ ******************************************************************************************/
+
+/********************************test data 2: image.json**************************************
+  {
+  "id": "e4db68de4ff27c2adfea0c54bbb73a61a42f5b667c326de4d7d5b19ab71c6a3b",
+  "digest": "sha256:64da743694ece2ca88df34bf4c5378fdfc44a1a5b50478722e2ff98b82e4a5c9",
+  "names": [
+  "rnd-dockerhub.huawei.com/official/busybox:latest"
+  ],
+  "layer": "6194458b07fcf01f1483d96cd6c34302ffff7f382bb151a6d023c4e80ba3050a",
+  "metadata": "{}",
+  "big-data-names": [
+  "sha256:e4db68de4ff27c2adfea0c54bbb73a61a42f5b667c326de4d7d5b19ab71c6a3b",
+  "manifest"
+  ],
+  "big-data-sizes": {
+  "sha256:e4db68de4ff27c2adfea0c54bbb73a61a42f5b667c326de4d7d5b19ab71c6a3b": 1497,
+  "manifest": 527
+  },
+  "big-data-digests": {
+  "sha256:e4db68de4ff27c2adfea0c54bbb73a61a42f5b667c326de4d7d5b19ab71c6a3b": "sha256:e4db68de4ff27c2adfea0c54bbb73a61a42f5b667c326de4d7d5b19ab71c6a3b",
+  "manifest": "sha256:64da743694ece2ca88df34bf4c5378fdfc44a1a5b50478722e2ff98b82e4a5c9"
+  },
+  "created": "2019-06-15T00:19:54.402459069Z",
+  "Loaded": "2020-03-16T03:46:17.439778957Z"
+  }
+ ******************************************************************************************/
+
+class StorageImagesUnitTest : public testing::Test {
+    protected:
+        void SetUp() override
+        {
+            std::string dir = GetDirectory() + "/data";
+
+            ASSERT_STRNE(cleanpath(dir.c_str(), real_path, sizeof(real_path)), nullptr);
+            ASSERT_EQ(new_image_store(true, false, real_path, &image_store), 0);
+        }
+        void TearDown() override
+        {
+            free_image_store(image_store);
+        }
+        image_store_t *image_store {nullptr};
+        std::vector<std::string> ids { 
+            "39891ff67da98ab8540d71320915f33d2eb80ab42908e398472cab3c1ce7ac10",
+                "e4db68de4ff27c2adfea0c54bbb73a61a42f5b667c326de4d7d5b19ab71c6a3b"
+        };
+        char real_path[PATH_MAX] = {0x00};
+};
+
+TEST_F(StorageImagesUnitTest, test_images_load)
+{
+
+    ASSERT_NE(image_store, nullptr);
+    ASSERT_STREQ(image_store->dir, real_path);
+
+    ASSERT_EQ(image_store->images_len, 2);
+    for (size_t i {}; i < image_store->images_len; i++) {
+        auto image = image_store->images[i];
+        ASSERT_NE(find(ids.begin(), ids.end(), std::string(image->id)), ids.end());
+        if (std::string(image->id) == ids.at(0)) {
+            ASSERT_STREQ(image->digest, "sha256:94192fe835d92cba5513297aad1cbcb32c9af455fb575e926ee5ec683a95e586");
+            ASSERT_EQ(image->names_len, 1);
+            ASSERT_STREQ(image->names[0], "rnd-dockerhub.huawei.com/official/centos:latest");
+            ASSERT_STREQ(image->layer, "edd34c086208711c693a7b7a3ade23e24e6170ae24d8d2dab7c4f3efca61d509");
+            ASSERT_STREQ(image->metadata, "{}");
+            ASSERT_EQ(image->big_data_names_len, 2);
+            ASSERT_STREQ(image->big_data_names[0], "sha256:39891ff67da98ab8540d71320915f33d2eb80ab42908e398472cab3c1ce7ac10");
+            ASSERT_STREQ(image->big_data_names[1], "manifest");
+            ASSERT_EQ(image->big_data_sizes->len, 2);
+            ASSERT_STREQ(image->big_data_sizes->keys[0], "manifest");
+            ASSERT_EQ(image->big_data_sizes->values[0], 741);
+            ASSERT_STREQ(image->big_data_sizes->keys[1], "sha256:39891ff67da98ab8540d71320915f33d2eb80ab42908e398472cab3c1ce7ac10");
+            ASSERT_EQ(image->big_data_sizes->values[1], 2235);
+            ASSERT_EQ(image->big_data_digests->len, 2);
+            ASSERT_STREQ(image->big_data_digests->keys[0], "sha256:39891ff67da98ab8540d71320915f33d2eb80ab42908e398472cab3c1ce7ac10");
+            ASSERT_STREQ(image->big_data_digests->values[0], "sha256:39891ff67da98ab8540d71320915f33d2eb80ab42908e398472cab3c1ce7ac10");
+            ASSERT_STREQ(image->big_data_digests->keys[1], "manifest");
+            ASSERT_STREQ(image->big_data_digests->values[1], "sha256:94192fe835d92cba5513297aad1cbcb32c9af455fb575e926ee5ec683a95e586");
+            ASSERT_STREQ(image->created, "2017-07-10T12:46:57.770791248Z");
+            ASSERT_STREQ(image->loaded, "2020-03-16T03:46:12.172621513Z");
+        } else {
+            ASSERT_STREQ(image->digest, "sha256:64da743694ece2ca88df34bf4c5378fdfc44a1a5b50478722e2ff98b82e4a5c9");
+            ASSERT_EQ(image->names_len, 1);
+            ASSERT_STREQ(image->names[0], "rnd-dockerhub.huawei.com/official/busybox:latest");
+            ASSERT_STREQ(image->layer, "6194458b07fcf01f1483d96cd6c34302ffff7f382bb151a6d023c4e80ba3050a");
+            ASSERT_STREQ(image->metadata, "{}");
+            ASSERT_EQ(image->big_data_names_len, 2);
+            ASSERT_STREQ(image->big_data_names[0], "sha256:e4db68de4ff27c2adfea0c54bbb73a61a42f5b667c326de4d7d5b19ab71c6a3b");
+            ASSERT_STREQ(image->big_data_names[1], "manifest");
+            ASSERT_EQ(image->big_data_sizes->len, 2);
+            ASSERT_STREQ(image->big_data_sizes->keys[0], "sha256:e4db68de4ff27c2adfea0c54bbb73a61a42f5b667c326de4d7d5b19ab71c6a3b");
+            ASSERT_EQ(image->big_data_sizes->values[0], 1497);
+            ASSERT_STREQ(image->big_data_sizes->keys[1], "manifest");
+            ASSERT_EQ(image->big_data_sizes->values[1], 527);
+            ASSERT_EQ(image->big_data_digests->len, 2);
+            ASSERT_STREQ(image->big_data_digests->keys[0], "sha256:e4db68de4ff27c2adfea0c54bbb73a61a42f5b667c326de4d7d5b19ab71c6a3b");
+            ASSERT_STREQ(image->big_data_digests->values[0], "sha256:e4db68de4ff27c2adfea0c54bbb73a61a42f5b667c326de4d7d5b19ab71c6a3b");
+            ASSERT_STREQ(image->big_data_digests->keys[1], "manifest");
+            ASSERT_STREQ(image->big_data_digests->values[1], "sha256:64da743694ece2ca88df34bf4c5378fdfc44a1a5b50478722e2ff98b82e4a5c9");
+            ASSERT_STREQ(image->created, "2019-06-15T00:19:54.402459069Z");
+            ASSERT_STREQ(image->loaded, "2020-03-16T03:46:17.439778957Z");
+        }
+    }
+}