{"id":44359,"date":"2022-12-20T14:55:27","date_gmt":"2022-12-28T03:09:43","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8golang-sdk%e6%93%8d%e4%bd%9cgce%e7%9a%84instance-group-manager\/"},"modified":"2024-04-29T06:11:58","modified_gmt":"2024-04-28T22:11:58","slug":"%e4%bd%bf%e7%94%a8golang-sdk%e6%93%8d%e4%bd%9cgce%e7%9a%84instance-group-manager","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8golang-sdk%e6%93%8d%e4%bd%9cgce%e7%9a%84instance-group-manager\/","title":{"rendered":"\u4f7f\u7528Golang SDK\u64cd\u4f5cGCE\u7684Instance Group Manager"},"content":{"rendered":"

\u9664\u4e86\u4e00\u90e8\u5206\uff0cGCP\u7684\u5404\u79cd\u670d\u52a1\u7684Golang SDK\u90fd\u662f\u6839\u636eAPI\u5b9a\u4e49\u7684JSON Schema\u81ea\u52a8\u751f\u6210\u7684\u3002
\n\u7531\u4e8eAPI\u5b9a\u4e49\u548c\u751f\u6210\u7684SDK\u5177\u6709\u4e00\u4e9b\u7279\u70b9\uff0c\u5b9e\u9645\u4f7f\u7528\u65f6\u53ef\u80fd\u4f1a\u9047\u5230\u4e00\u4e9b\u56f0\u96be\uff0c\u56e0\u6b64\u6211\u60f3\u5728\u8fd9\u91cc\u4e3e\u51e0\u4e2a\u4f8b\u5b50\u8fdb\u884c\u89e3\u91ca\u3002<\/p>\n

\u53ef\u4ee5\u5728\u8fd9\u91cc\u67e5\u770b\u5b9e\u9645\u7684JSON Schema\u548cGolang\u7684\u4ee3\u7801\u3002<\/p>\n

GCE\u6982\u5ff5\u7684\u89e3\u91ca<\/h1>\n

\u300cInstance Group Manager\u300d\u662f\u4ec0\u4e48\u610f\u601d\uff1f<\/h2>\n

\u4e00\u4e2a\u53ef\u4ee5\u7ba1\u7406\u901a\u8fc7GCE\u521b\u5efa\u7684\u5b9e\u4f8b\u7684\u5de5\u5177\uff0c\u8fd9\u662f\u5bf9\u5b83\u76f4\u63a5\u7684\u89e3\u91ca\u3002
\n\u5177\u4f53\u800c\u8a00\uff0c\u5b83\u53ef\u4ee5\u505a\u5230\u4ee5\u4e0b\u51e0\u70b9\uff1a
\n– \u76d1\u63a7\u5b9e\u4f8b\u7684\u72b6\u6001
\n– \u5206\u914d\u8d1f\u8f7d
\n– \u81ea\u52a8\u6269\u5c55
\n– \u4f7f\u7528\u5b9e\u4f8b\u6a21\u677f<\/p>\n

\u6709\u4e00\u4e9b\u5b9e\u4f8b\u7ec4\uff0c\u5177\u4f53\u5185\u5bb9\u5982\u4e0b\u6240\u793a\u3002<\/p>\n

“Instance Template” \u662f\u4ec0\u4e48\u610f\u601d?<\/h2>\n

\u8981\u8fdb\u884c\u7684\u662f\u5bf9Instance\u7684\u914d\u7f6e\u3002
\n\u53ef\u4ee5\u8fdb\u884c\u914d\u7f6e\u7684\u5185\u5bb9\u6709\uff1a
\n– \u64cd\u4f5c\u7cfb\u7edf\u548c\u673a\u578b
\n– \u786c\u76d8
\n– \u542f\u52a8\u65f6\u7684\u811a\u672c
\n– \u7f51\u7edc<\/p>\n

\u521b\u5efa\u5b9e\u4f8b\u6a21\u677f\u3002<\/p>\n

\u5177\u4f53\u4e3e\u4f8b<\/h1>\n

\u6211\u6253\u7b97\u4f7f\u7528Golang SDK\u6765\u521b\u5efa\u4e0a\u8ff0\u8d44\u6e90\u3002
\n\u5177\u4f53\u6b65\u9aa4\u662f\u5728GCP\u4e0a\u521b\u5efa\u4e00\u4e2a\u5b9e\u4f8b\u6a21\u677f\uff0c\u7136\u540e\u4f7f\u7528\u8be5\u6a21\u677f\u521b\u5efa\u6258\u7ba1\u5b9e\u4f8b\u7ec4\u3002<\/p>\n

\u6837\u672c<\/h2>\n
\r\nimport<\/span> (<\/span>\r\n    \"errors\"<\/span>\r\n    \"fmt\"<\/span>\r\n    \"strings\"<\/span>\r\n    \"time\"<\/span>\r\n\r\n    \"golang.org\/x\/net\/context\"<\/span>\r\n    \"golang.org\/x\/oauth2\/google\"<\/span>\r\n    compute<\/span> \"google.golang.org\/api\/compute\/v1\"<\/span>\r\n)<\/span>\r\n\r\nfunc<\/span> readError<\/span>(<\/span>op<\/span> *<\/span>compute<\/span>.<\/span>Operation<\/span>)<\/span> error<\/span> {<\/span>\r\n    if<\/span> op<\/span>.<\/span>Error<\/span> ==<\/span> nil<\/span> {<\/span>\r\n        return<\/span> nil<\/span>\r\n    }<\/span>\r\n\r\n    errs<\/span> :=<\/span> []<\/span>string<\/span>{}<\/span>\r\n    for<\/span> _<\/span>,<\/span> err<\/span> :=<\/span> range<\/span> op<\/span>.<\/span>Error<\/span>.<\/span>Errors<\/span> {<\/span>\r\n        errs<\/span> =<\/span> append<\/span>(<\/span>errs<\/span>,<\/span> err<\/span>.<\/span>Message<\/span>)<\/span>\r\n    }<\/span>\r\n    return<\/span> errors<\/span>.<\/span>New<\/span>(<\/span>strings<\/span>.<\/span>Join<\/span>(<\/span>errs<\/span>,<\/span> \",\"<\/span>))<\/span>\r\n}<\/span>\r\n\r\nfunc<\/span> main<\/span>()<\/span> {<\/span>\r\n    err<\/span> :=<\/span> func<\/span>()<\/span> error<\/span> {<\/span>\r\n        s<\/span>,<\/span> err<\/span> :=<\/span> ioutil<\/span>.<\/span>ReadFile<\/span>(<\/span>\"\/path\/to\/credential.json\"<\/span>)<\/span> \/\/ Google\u306eIAM\u3067\u4f5c\u6210\u3059\u308bCredential\u306eJSON<\/span>\r\n        if<\/span> err<\/span> !=<\/span> nil<\/span> {<\/span>\r\n          return<\/span> err<\/span>\r\n        }<\/span>\r\n\r\n        c<\/span>,<\/span> err<\/span> :=<\/span> google<\/span>.<\/span>JWTConfigFromJSON<\/span>(<\/span>s<\/span>,<\/span> compute<\/span>.<\/span>ComputeScope<\/span>)<\/span>\r\n        if<\/span> err<\/span> !=<\/span> nil<\/span> {<\/span>\r\n            return<\/span> err<\/span>\r\n        }<\/span>\r\n        ctx<\/span> :=<\/span> context<\/span>.<\/span>Background<\/span>()<\/span>\r\n        client<\/span> :=<\/span> c<\/span>.<\/span>Client<\/span>(<\/span>ctx<\/span>)<\/span>\r\n        service<\/span>,<\/span> err<\/span> :=<\/span> compute<\/span>.<\/span>New<\/span>(<\/span>client<\/span>)<\/span> \/\/ \u4e0a\u8a18\u306eCredential\u306b\u3088\u308a\u4f5c\u6210\u3057\u305f\u3053\u306eService\u3092\u5168\u30ea\u30af\u30a8\u30b9\u30c8\u3067\u7528\u3044\u308b<\/span>\r\n        if<\/span> err<\/span> !=<\/span> nil<\/span> {<\/span>\r\n            return<\/span> err<\/span>\r\n        }<\/span>\r\n\r\n        startupScript<\/span> :=<\/span> `\r\n#!\/bin\/bash\r\nsudo apt-get update && sudo apt-get install nginx\r\n`<\/span>\r\n\r\n        temp<\/span> :=<\/span> &<\/span>compute<\/span>.<\/span>InstanceTemplate<\/span>{<\/span>\r\n            Name<\/span>:<\/span> \"sample-template\"<\/span>,<\/span>\r\n            Properties<\/span>:<\/span> &<\/span>compute<\/span>.<\/span>InstanceProperties<\/span>{<\/span>\r\n                Tags<\/span>:<\/span> &<\/span>compute<\/span>.<\/span>Tags<\/span>{<\/span>\r\n                    Items<\/span>:<\/span> []<\/span>string<\/span>{<\/span>\r\n                        \"https-server\"<\/span>,<\/span> \/\/ Google\u306eFirewall\u306f\u30bf\u30b0\u306b\u3088\u3063\u3066\u30eb\u30fc\u30eb\u3092\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306b\u8a2d\u5b9a\u3059\u308b\u5f62\u3067\u7528\u3044\u308b\u3002<\/span>\r\n                        \"http-server\"<\/span>,<\/span>\r\n                    },<\/span>\r\n                },<\/span>\r\n                NetworkInterfaces<\/span>:<\/span> []<\/span>*<\/span>compute<\/span>.<\/span>NetworkInterface<\/span>{<\/span>\r\n                    {<\/span>\r\n                        AccessConfigs<\/span>:<\/span> []<\/span>*<\/span>compute<\/span>.<\/span>AccessConfig<\/span>{<\/span>\r\n                            {<\/span>\r\n                                Name<\/span>:<\/span> \"external-IP\"<\/span>,<\/span>\u3000<\/span>\r\n                                Type<\/span>:<\/span> \"ONE_TO_ONE_NAT\"<\/span>,<\/span>\r\n                            },<\/span>\r\n                        },<\/span>\r\n                        Network<\/span>:<\/span> \"global\/networks\/default\"<\/span>,<\/span>\r\n                    },<\/span>\r\n                },<\/span>\r\n                Disks<\/span>:<\/span> []<\/span>*<\/span>compute<\/span>.<\/span>AttachedDisk<\/span>{<\/span>\r\n                    {<\/span>\r\n                        Boot<\/span>:<\/span> true<\/span>,<\/span>\r\n                        InitializeParams<\/span>:<\/span> &<\/span>compute<\/span>.<\/span>AttachedDiskInitializeParams<\/span>{<\/span>\r\n                            SourceImage<\/span>:<\/span> \"projects\/debian-cloud\/global\/images\/debian-8-jessie-v20170308\"<\/span>,<\/span>\r\n                        },<\/span>\r\n                    },<\/span>\r\n                },<\/span>\r\n                MachineType<\/span>:<\/span> \"n1-standard-1\"<\/span>,<\/span>\r\n                Metadata<\/span>:<\/span> &<\/span>compute<\/span>.<\/span>Metadata<\/span>{<\/span>\r\n                    Items<\/span>:<\/span> []<\/span>*<\/span>compute<\/span>.<\/span>MetadataItems<\/span>{<\/span>\r\n                        {<\/span>\r\n                            Key<\/span>:<\/span>   \"startup-script\"<\/span>,<\/span> \/\/ \u8d77\u52d5\u6642\u306b\u8d70\u3089\u305b\u308bscript\u306f\u3053\u306e\u540d\u524d\u3067\u30e1\u30bf\u30c7\u30fc\u30bf\u306b\u767b\u9332\u3059\u308b\u3002<\/span>\r\n                            Value<\/span>:<\/span> &<\/span>startupScript<\/span>,<\/span>\r\n                        },<\/span>\r\n                    },<\/span>\r\n                },<\/span>\r\n            },<\/span>\r\n        }<\/span>\r\n\r\n        op<\/span>,<\/span> err<\/span> :=<\/span> compute<\/span>.<\/span>NewInstanceTemplatesService<\/span>(<\/span>service<\/span>)<\/span>.<\/span>\r\n            Insert<\/span>(<\/span>project<\/span>,<\/span> temp<\/span>)<\/span>.<\/span>\r\n            Do<\/span>()<\/span>\r\n        if<\/span> err<\/span> !=<\/span> nil<\/span> {<\/span>\r\n            return<\/span> err<\/span>\r\n        }<\/span>\r\n        if<\/span> err<\/span> :=<\/span> readError<\/span>(<\/span>op<\/span>);<\/span> err<\/span> !=<\/span> nil<\/span> {<\/span>\r\n            return<\/span> err<\/span>\r\n        }<\/span>\r\n\r\n        \/\/ template\u304c\u767b\u9332\u3055\u308c\u308b\u307e\u3067\u30e9\u30b0\u304c\u3042\u308b\u306e\u3067\u5f85\u3064\u5fc5\u8981\u304c\u3042\u308b<\/span>\r\n        for<\/span> {<\/span>\r\n            time<\/span>.<\/span>Sleep<\/span>(<\/span>1<\/span> *<\/span> time<\/span>.<\/span>Second<\/span>)<\/span>\r\n\r\n            b<\/span> :=<\/span> false<\/span>\r\n            ts<\/span>,<\/span> err<\/span> :=<\/span> compute<\/span>.<\/span>NewInstanceTemplatesService<\/span>(<\/span>service<\/span>)<\/span>.<\/span>\r\n                List<\/span>(<\/span>project<\/span>)<\/span>.<\/span>\r\n                Do<\/span>()<\/span>\r\n            if<\/span> err<\/span> !=<\/span> nil<\/span> {<\/span>\r\n                return<\/span> err<\/span>\r\n            }<\/span>\r\n            for<\/span> _<\/span>,<\/span> t<\/span> :=<\/span> range<\/span> ts<\/span>.<\/span>Items<\/span> {<\/span>\r\n                if<\/span> \"sample-template\"<\/span> ==<\/span> t<\/span>.<\/span>Name<\/span> {<\/span>\r\n                    b<\/span> =<\/span> true<\/span>\r\n                }<\/span>\r\n            }<\/span>\r\n            if<\/span> !<\/span>b<\/span> {<\/span>\r\n                continue<\/span>\r\n            }<\/span>\r\n            break<\/span>\r\n        }<\/span>\r\n\r\n        grp<\/span> :=<\/span> &<\/span>compute<\/span>.<\/span>InstanceGroupManager<\/span>{<\/span>\r\n            InstanceTemplate<\/span>:<\/span> \"global\/instanceTemplates\/sample-template\"<\/span>,<\/span>\r\n            TargetSize<\/span>:<\/span>       1<\/span>,<\/span>\r\n            Name<\/span>:<\/span>             \"sample-group-manager\"<\/span>,<\/span>\r\n            BaseInstanceName<\/span>:<\/span> \"sample-group\"<\/span>,<\/span>\r\n        }<\/span>\r\n        op<\/span>,<\/span> err<\/span> =<\/span> compute<\/span>.<\/span>NewInstanceGroupManagersService<\/span>(<\/span>service<\/span>)<\/span>.<\/span>\r\n            Insert<\/span>(<\/span>project<\/span>,<\/span> zone<\/span>,<\/span> grp<\/span>)<\/span>.<\/span>\r\n            Do<\/span>()<\/span>\r\n        if<\/span> err<\/span> !=<\/span> nil<\/span> {<\/span>\r\n            return<\/span> err<\/span>\r\n        }<\/span>\r\n        if<\/span> err<\/span> :=<\/span> readError<\/span>(<\/span>op<\/span>);<\/span> err<\/span> !=<\/span> nil<\/span> {<\/span>\r\n            return<\/span> err<\/span>\r\n        }<\/span>\r\n        return<\/span> nil<\/span>\r\n    }()<\/span>\r\n    if<\/span> err<\/span> !=<\/span> nil<\/span> {<\/span>\r\n        fmt<\/span>.<\/span>Println<\/span>(<\/span>err<\/span>)<\/span>\r\n        return<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n\r\n\r\n<\/code><\/pre>\n
sample-template\u88ab\u5e94\u7528\u4e8esample-group-manager\uff0c\u6839\u636esample-template\u7684\u8bbe\u5b9a\uff0c\u4f1a\u521b\u5efa\u4e00\u4e2a\u5b9e\u4f8b\u5e76\u6b63\u786e\u5730\u542f\u52a8\u4e00\u53f0\u3002<\/p>\n
\u8bf4\u660e<\/h2>\n
\u670d\u52a1<\/h3>\n
Golang SDK\u4e2d\u6709\u4e00\u4e2a\u540d\u4e3aService\u7684\u6982\u5ff5\uff08\u5176\u4ed6SDK\u53ef\u80fd\u4e5f\u6709\u8fd9\u4e2a\u6982\u5ff5\uff09\u3002
\n\u901a\u8fc7\u63d0\u4f9b\u5e26\u6709Credential\u4fe1\u606f\u7684JSON\u6765\u521b\u5efa\u8be5Service\uff0c\u8be5JSON\u4f1a\u7531\u6bcf\u4e2aService Account\u751f\u6210\uff0c
\n\u56e0\u6b64\u6bcf\u4e2a\u8bf7\u6c42\u90fd\u5c06\u4f7f\u7528\u8fd9\u4e2a\u7279\u6b8aService\u8fdb\u884c\u521b\u5efa\u3002<\/p>\n
\u8bf7\u6c42\u4e3b\u4f53<\/h3>\n
\u7531\u4e8eGolang SDK\u4e2d\u6ca1\u6709\u5173\u4e8e\u5404\u4e2a\u8bf7\u6c42\u5c5e\u6027\u7684\u4fe1\u606f\uff0c\u6240\u4ee5\u9700\u8981\u67e5\u770b\u6bcf\u4e2aAPI\u7684\u53c2\u8003\u8d44\u6599\u3002<\/p>\n
\u5b9e\u4f8b\u6a21\u677f
\n\u5b9e\u4f8b\u7ec4\u7ba1\u7406\u5668<\/p>\n
\u5728\u6211\u4f7f\u7528Golang SDK\u5c1d\u8bd5\u64cd\u4f5cGCP\u670d\u52a1\u65f6\uff0c\u6211\u53d1\u73b0\u53ea\u6709\u5728API\u53c2\u8003\u6587\u6863\u4e2d\u624d\u80fd\u627e\u5230\u54ea\u4e9b\u5c5e\u6027\u662f\u5fc5\u9700\u7684\uff0c\u4ee5\u53ca\u5b83\u4eec\u53d7\u5230\u4e86\u600e\u6837\u7684\u9a8c\u8bc1\u3002\u4e5f\u8bb8\u7531\u4e8e\u81ea\u52a8\u751f\u6210\u7684\u7279\u6027\uff0c\u8fd9\u5f88\u56f0\u96be\uff0c\u800c\u4e14\u76f8\u5f53\u96be\u4ee5\u5904\u7406\u3002<\/p>\n
\u5b8c\u5168\u662f\u53e6\u4e00\u56de\u4e8b\uff0c\u540c\u6837\u662f\u81ea\u52a8\u751f\u6210\u7684Cloud Vision API\u7684Golang SDK\u7684Godoc\uff0c\u5b83\u7684\u793a\u4f8b\u4ee3\u7801\u7531Python\u3001Java\u3001Objective-C\u7b49\u7ec4\u6210\uff0c\u5374\u6ca1\u6709Golang\u7684\u793a\u4f8b\u4ee3\u7801\uff0c\u8fd9\u7834\u574f\u4e86Godoc\u7684\u5b8c\u6574\u6027\u3002<\/p>\n
\u5143\u6570\u636e<\/h3>\n
\u5728Instance Template\u4e2d\uff0c\u53ef\u4ee5\u52a0\u5165Metadata\u3002\u8fd9\u6837\u505a\u6709\u5f88\u591a\u65b9\u4fbf\u4e4b\u5904\uff0c\u4f46\u5728\u6b64\u6211\u4eec\u7565\u8fc7\uff08\u8be6\u7ec6\u5185\u5bb9\u8bf7\u53c2\u8003\u672c\u6587\uff09\u3002\u91cd\u70b9\u662f\uff0c\u53ef\u4ee5\u901a\u8fc7\u540d\u4e3astartup-script\u7684\u811a\u672c\u6765\u5d4c\u5165\u811a\u672c\uff0c\u5728\u670d\u52a1\u5668\u542f\u52a8\u6216\u91cd\u65b0\u542f\u52a8\u65f6\u8fd0\u884c\u8be5\u811a\u672c\u3002\u8be6\u60c5\u5982\u4e0b\uff1a
\n\u8fd0\u884c\u542f\u52a8\u811a\u672c<\/p>\n
\u64cd\u4f5c<\/h3>\n
\u5173\u4e8e\u63d2\u5165\u548c\u5220\u9664\u8bf7\u6c42\uff0c\u5b83\u4eec\u7684\u8fd4\u56de\u503c\u662f\u901a\u8fc7\u64cd\u4f5c\uff08Operation\uff09\u6765\u786e\u5b9a\u7684\u3002
\n\u82e5\u8981\u521b\u5efa\u5177\u6709\u591a\u4e2a\u4f9d\u8d56\u5173\u7cfb\u7684\u8d44\u6e90\uff0c\u5219\u9700\u8981\u5145\u5206\u7406\u89e3\u5404\u4e2a\u4f9b\u5e94\u5546\u670d\u52a1\u7684\u7279\u6027\uff0c\u5e76\u8fdb\u884c\u5e94\u7528\u3002\u7531\u4e8e\u6a21\u677f\u7684\u521b\u5efa\u53ef\u80fd\u9700\u8981\u4e00\u4e9b\u5fae\u5999\u7684\u65f6\u95f4\u6765\u53cd\u6620\u53d8\u5316\uff0c\u56e0\u6b64\u5728\u91cd\u73b0\u67d0\u4e9b\u96be\u4ee5\u6349\u6478\u7684\u9519\u8bef\u65f6\uff0c\u6211\u786e\u5b9e\u6709\u8fd9\u6837\u7684\u7ecf\u5386\u3002<\/p>\n
\u603b\u7ed3<\/h1>\n
\u56e0\u4e3a\u5b66\u4e60GCP\u7684Golang SDK\u9700\u8981\u76f8\u5f53\u5927\u7684\u6210\u672c\uff0c\u6240\u4ee5\u5bf9\u4e8e\u5c0f\u89c4\u6a21\u9879\u76ee\u6765\u8bf4\uff0c\u6700\u597d\u8fd8\u662f\u7528gcloud\u6765\u6784\u5efa\u3002\u6211\u89c9\u5f97\u8fd9\u53ef\u80fd\u662f\u56e0\u4e3a\u5728\u6211\u4f7f\u7528Golang SDK\u7684\u65f6\u5019\uff0c\u4f3c\u4e4e\u5f88\u5c11\u89c1\u5230\u5176\u4ed6\u4eba\u4f7f\u7528\u5b83\u7684\u539f\u56e0\uff0c\u6240\u4ee5\u6211\u6682\u65f6\u81ea\u5df1\u53bb\u89e3\u91ca\u4e86\u4e00\u4e0b\u3002<\/p>\n
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