{"id":4208,"date":"2024-11-11T13:16:17","date_gmt":"2024-11-11T05:16:17","guid":{"rendered":"https:\/\/fwq.ai\/blog\/4208\/"},"modified":"2024-11-11T13:16:17","modified_gmt":"2024-11-11T05:16:17","slug":"%e4%bd%bf%e7%94%a8%e5%ae%b9%e5%99%a8%e8%bf%9b%e8%a1%8c-go-%e5%bc%80%e5%8f%91","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/4208\/","title":{"rendered":"\u4f7f\u7528\u5bb9\u5668\u8fdb\u884c Go \u5f00\u53d1"},"content":{"rendered":"

\u4f7f\u7528\u5bb9\u5668\u8fdb\u884c Go \u5f00\u53d1<\/h1>\n

<\/h2>\n

\u7684\u6b65\u9aa4\uff0c \u4ee5\u4e86\u89e3\u5982\u4f55\u7ba1\u7406\u5bb9\u5668\u7684\u751f\u547d\u5468\u671f\u3002<\/p>\n

<\/h2>\n

\u5728\u672c\u6a21\u5757\u4e2d\uff0c\u60a8\u5c06\u4e86\u89e3\u5982\u4f55\u5728\u5bb9\u5668\u4e2d\u8fd0\u884c\u6570\u636e\u5e93\u5f15\u64ce\u5e76\u5c06\u5176\u8fde\u63a5\u5230\u793a\u4f8b\u5e94\u7528\u7a0b\u5e8f\u7684\u6269\u5c55\u7248\u672c\u3002\u60a8\u5c06\u770b\u5230\u4e00\u4e9b\u7528\u4e8e\u4fdd\u7559\u6301\u4e45\u6570\u636e\u4ee5\u53ca\u8fde\u63a5\u5bb9\u5668\u4ee5\u76f8\u4e92\u901a\u4fe1\u7684\u9009\u9879\u3002\u6700\u540e\uff0c\u60a8\u5c06\u5b66\u4e60\u5982\u4f55\u4f7f\u7528 Docker Compose \u6709\u6548\u7ba1\u7406\u6b64\u7c7b\u591a\u5bb9\u5668\u672c\u5730\u5f00\u53d1\u73af\u5883\u3002<\/p>\n

<\/h2>\n

\u60a8\u5c06\u4f7f\u7528\u7684\u6570\u636e\u5e93\u5f15\u64ce\u79f0\u4e3a \u3002\u5b83\u662f\u4e00\u4e2a\u73b0\u4ee3\u7684\u3001\u4e91\u539f\u751f\u7684\u3001\u5206\u5e03\u5f0f SQL \u6570\u636e\u5e93\u3002<\/p>\n

\u60a8\u5c06\u4f7f\u7528 \u5e76\u5728\u5bb9\u5668\u4e2d\u8fd0\u884c\u5b83\uff0c\u800c\u4e0d\u662f\u4ece\u6e90\u4ee3\u7801\u7f16\u8bd1 CockroachDB \u6216\u4f7f\u7528\u64cd\u4f5c\u7cfb\u7edf\u7684\u672c\u673a\u5305\u7ba1\u7406\u5668\u6765\u5b89\u88c5 CockroachDB\u3002<\/p>\n

CockroachDB \u5728\u5f88\u5927\u7a0b\u5ea6\u4e0a\u4e0e PostgreSQL \u517c\u5bb9\uff0c\u5e76\u4e0e\u540e\u8005\u5171\u4eab\u8bb8\u591a\u7ea6\u5b9a\uff0c\u7279\u522b\u662f\u73af\u5883\u53d8\u91cf\u7684\u9ed8\u8ba4\u540d\u79f0\u3002\u56e0\u6b64\uff0c\u5982\u679c\u60a8\u719f\u6089 Postgres\uff0c\u5f53\u60a8\u770b\u5230\u4e00\u4e9b\u719f\u6089\u7684\u73af\u5883\u53d8\u91cf\u540d\u79f0\u65f6\uff0c\u8bf7\u4e0d\u8981\u611f\u5230\u60ca\u8bb6\u3002\u4e0e Postgres \u914d\u5408\u4f7f\u7528\u7684 Go \u6a21\u5757\uff0c\u4f8b\u5982 \u3001 \u3001 \u548c \u4e5f\u4e0e CockroachDB \u914d\u5408\u4f7f\u7528\u3002<\/p>\n

\u6709\u5173 Go \u548c CockroachDB \u4e4b\u95f4\u5173\u7cfb\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u8bf7\u53c2\u9605 \uff0c\u5c3d\u7ba1\u8fd9\u5bf9\u4e8e\u7ee7\u7eed\u672c\u6307\u5357\u4e0d\u662f\u5fc5\u9700\u7684\u3002<\/p>\n

<\/h3>\n

\u6570\u636e\u5e93\u7684\u8981\u70b9\u662f\u6301\u4e45\u5b58\u50a8\u6570\u636e\u3002 \u662f\u6301\u4e45\u4fdd\u5b58 Docker \u5bb9\u5668\u751f\u6210\u548c\u4f7f\u7528\u7684\u6570\u636e\u7684\u9996\u9009\u673a\u5236\u3002\u56e0\u6b64\uff0c\u5728\u542f\u52a8 CockroachDB \u4e4b\u524d\uff0c\u8bf7\u4e3a\u5176\u521b\u5efa\u5377\u3002<\/p>\n

\u8981\u521b\u5efa\u6258\u7ba1\u5377\uff0c\u8bf7\u8fd0\u884c\uff1a<\/p>\n

<\/span>
\n <\/span> <\/p>\n

$<\/span> docker volume create roach <\/span><\/span>roach <\/span><\/span><\/span><\/code><\/pre>\n
\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u67e5\u770b Docker \u5b9e\u4f8b\u4e2d\u6240\u6709\u6258\u7ba1\u5377\u7684\u5217\u8868\uff1a<\/p>\n
 <\/span>
\n <\/span> <\/p>\n
$<\/span> docker volume list <\/span><\/span>DRIVER VOLUME NAME <\/span><\/span><\/span>local roach <\/span><\/span><\/span><\/code><\/pre>\n
<\/h3>\n
\u793a\u4f8b\u5e94\u7528\u7a0b\u5e8f\u548c\u6570\u636e\u5e93\u5f15\u64ce\u5c06\u901a\u8fc7\u7f51\u7edc\u76f8\u4e92\u901a\u4fe1\u3002\u53ef\u80fd\u6709\u4e0d\u540c\u7c7b\u578b\u7684\u7f51\u7edc\u914d\u7f6e\uff0c\u60a8\u5c06\u4f7f\u7528\u6240\u8c13\u7684\u7528\u6237\u5b9a\u4e49\u7684\u6865\u63a5\u7f51\u7edc\u3002\u5b83\u5c06\u4e3a\u60a8\u63d0\u4f9b DNS \u67e5\u627e\u670d\u52a1\uff0c\u4ee5\u4fbf\u60a8\u53ef\u4ee5\u901a\u8fc7\u4e3b\u673a\u540d\u5f15\u7528\u6570\u636e\u5e93\u5f15\u64ce\u5bb9\u5668\u3002<\/p>\n
\u4ee5\u4e0b\u547d\u4ee4\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a \u7684\u65b0\u6865\u63a5\u7f51\u7edcmynet<\/code>\uff1a<\/p>\n
 <\/span>
\n <\/span> <\/p>\n
$<\/span> docker network create -d bridge mynet <\/span><\/span>51344edd6430b5acd121822cacc99f8bc39be63dd125a3b3cd517b6485ab7709 <\/span><\/span><\/span><\/code><\/pre>\n
\u4e0e\u6258\u7ba1\u5377\u7684\u60c5\u51b5\u4e00\u6837\uff0c\u6709\u4e00\u4e2a\u547d\u4ee4\u53ef\u4ee5\u5217\u51fa Docker \u5b9e\u4f8b\u4e2d\u8bbe\u7f6e\u7684\u6240\u6709\u7f51\u7edc\uff1a<\/p>\n
 <\/span>
\n <\/span> <\/p>\n
$<\/span> docker network list <\/span><\/span>NETWORK ID NAME DRIVER SCOPE <\/span><\/span><\/span>0ac2b1819fa4 bridge bridge local <\/span><\/span><\/span>51344edd6430 mynet bridge local <\/span><\/span><\/span>daed20bbecce host host local <\/span><\/span><\/span>6aee44f40a39 none null local <\/span><\/span><\/span><\/code><\/pre>\n
\u60a8\u7684\u6865\u63a5\u7f51\u7edcmynet<\/code>\u5df2\u6210\u529f\u521b\u5efa\u3002\u5176\u4ed6\u4e09\u4e2a\u7f51\u7edc\uff0c\u540d\u4e3abridge<\/code>\u3001host<\/code>\u3001 \u548cnone<\/code>\u662f\u9ed8\u8ba4\u7f51\u7edc\uff0c\u5b83\u4eec\u662f\u7531 Docker \u672c\u8eab\u521b\u5efa\u7684\u3002\u867d\u7136\u5b83\u4e0e\u672c\u6307\u5357\u65e0\u5173\uff0c\u4f46\u60a8\u53ef\u4ee5\u5728\u90e8\u5206\u4e86\u89e3\u6709\u5173 Docker \u7f51\u7edc\u7684\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n
<\/h3>\n
\u4fd7\u8bdd\u8bf4\uff0c\u8ba1\u7b97\u673a\u79d1\u5b66\u4e2d\u53ea\u6709\u4e24\u4ef6\u96be\u4e8b\uff1a\u7f13\u5b58\u5931\u6548\u548c\u547d\u540d\u3002\u4ee5\u53ca\u76f8\u5dee\u4e00\u7684\u9519\u8bef\u3002<\/p>\n
\u4e3a\u7f51\u7edc\u6216\u6258\u7ba1\u5377\u9009\u62e9\u540d\u79f0\u65f6\uff0c\u6700\u597d\u9009\u62e9\u80fd\u591f\u8868\u660e\u9884\u671f\u7528\u9014\u7684\u540d\u79f0\u3002\u672c\u6307\u5357\u65e8\u5728\u7b80\u6d01\uff0c\u56e0\u6b64\u4f7f\u7528\u4e86\u7b80\u77ed\u7684\u901a\u7528\u540d\u79f0\u3002<\/p>\n
<\/h3>\n
\u73b0\u5728\u5185\u52a1\u5de5\u4f5c\u5df2\u7ecf\u5b8c\u6210\uff0c\u60a8\u53ef\u4ee5\u5728\u5bb9\u5668\u4e2d\u8fd0\u884c CockroachDB \u5e76\u5c06\u5176\u9644\u52a0\u5230\u60a8\u521a\u521a\u521b\u5efa\u7684\u5377\u548c\u7f51\u7edc\u3002\u5f53\u60a8\u8fd0\u884c\u4ee5\u4e0b\u547d\u4ee4\u65f6\uff0cDocker \u5c06\u4ece Docker Hub \u4e2d\u63d0\u53d6\u6620\u50cf\u5e76\u5728\u672c\u5730\u8fd0\u884c\uff1a<\/p>\n
 <\/span>
\n <\/span> <\/p>\n
$<\/span> docker run -d \\ <\/span><\/span><\/span><\/span> --name roach \\ <\/span><\/span><\/span> --hostname db \\ <\/span><\/span><\/span> --network mynet \\ <\/span><\/span><\/span> -p 26257:26257 \\ <\/span><\/span><\/span> -p 8080:8080 \\ <\/span><\/span><\/span> -v roach:\/cockroach\/cockroach-data \\ <\/span><\/span><\/span> cockroachdb\/cockroach:latest-v20.1 start-single-node \\ <\/span><\/span><\/span> --insecure <\/span><\/span><\/span><\/span> <\/span><\/span><\/span><\/span>#<\/span> ... output omitted ... <\/span><\/span><\/code><\/pre>\n
\u8bf7\u6ce8\u610f\u5de7\u5999\u5730\u4f7f\u7528\u8be5\u6807\u7b7elatest-v20.1<\/code>\u6765\u786e\u4fdd\u60a8\u63d0\u53d6\u7684\u662f 20.1 \u7684\u6700\u65b0\u8865\u4e01\u7248\u672c\u3002\u53ef\u7528\u6807\u7b7e\u7684\u591a\u6837\u6027\u53d6\u51b3\u4e8e\u56fe\u50cf\u7ef4\u62a4\u8005\u3002\u5728\u8fd9\u91cc\uff0c\u60a8\u7684\u76ee\u7684\u662f\u62e5\u6709 CockroachDB \u7684\u6700\u65b0\u4fee\u8865\u7248\u672c\uff0c\u540c\u65f6\u968f\u7740\u65f6\u95f4\u7684\u63a8\u79fb\u4e0d\u4f1a\u504f\u79bb\u5df2\u77e5\u7684\u5de5\u4f5c\u7248\u672c\u592a\u8fdc\u3002\u8981\u67e5\u770b CockroachDB \u955c\u50cf\u7684\u53ef\u7528\u6807\u7b7e\uff0c\u60a8\u53ef\u4ee5\u8bbf\u95ee \u3002<\/p>\n
<\/h3>\n
\u73b0\u5728\u6570\u636e\u5e93\u5f15\u64ce\u5df2\u4e0a\u7ebf\uff0c\u5728\u5e94\u7528\u7a0b\u5e8f\u5f00\u59cb\u4f7f\u7528\u5b83\u4e4b\u524d\u9700\u8981\u8fdb\u884c\u4e00\u4e9b\u914d\u7f6e\u3002\u5e78\u8fd0\u7684\u662f\uff0c\u6570\u91cf\u5e76\u4e0d\u591a\u3002\u4f60\u5fc5\u987b\uff1a<\/p>\n
    \n
  1. \u521b\u5efa\u4e00\u4e2a\u7a7a\u767d\u6570\u636e\u5e93\u3002<\/li>\n
  2. \u5411\u6570\u636e\u5e93\u5f15\u64ce\u6ce8\u518c\u4e00\u4e2a\u65b0\u7684\u7528\u6237\u5e10\u6237\u3002<\/li>\n
  3. \u6388\u4e88\u65b0\u7528\u6237\u5bf9\u6570\u636e\u5e93\u7684\u8bbf\u95ee\u6743\u9650\u3002<\/li>\n<\/ol>\n
    \u60a8\u53ef\u4ee5\u501f\u52a9 CockroachDB \u5185\u7f6e SQL shell \u6765\u5b8c\u6210\u6b64\u64cd\u4f5c\u3002\u8981\u5728\u8fd0\u884c\u6570\u636e\u5e93\u5f15\u64ce\u7684\u540c\u4e00\u5bb9\u5668\u4e2d\u542f\u52a8 SQL shell\uff0c\u8bf7\u952e\u5165\uff1a<\/p>\n
     <\/span>
    \n <\/span> <\/p>\n
    $<\/span> docker exec<\/span> -it roach .\/cockroach sql --insecure <\/span><\/span><\/code><\/pre>\n
      \n
    1. \n
      \u5728 SQL shell \u4e2d\uff0c\u521b\u5efa\u793a\u4f8b\u5e94\u7528\u7a0b\u5e8f\u5c06\u4f7f\u7528\u7684\u6570\u636e\u5e93\uff1a<\/p>\n
        <\/span>  <\/span> <\/p>\n
      CREATE<\/span> <\/span>DATABASE<\/span> <\/span>mydb<\/span>;<\/span><\/span><\/span><\/code><\/pre>\n<\/li>\n
    2. \n
      \u5411\u6570\u636e\u5e93\u5f15\u64ce\u6ce8\u518c\u65b0\u7684 SQL \u7528\u6237\u5e10\u6237\u3002\u4f7f\u7528\u7528\u6237\u540dtotoro<\/code>\u3002<\/p>\n
        <\/span>  <\/span> <\/p>\n
      CREATE<\/span> <\/span>USER<\/span> <\/span>totoro<\/span>;<\/span><\/span><\/span><\/code><\/pre>\n<\/li>\n
    3. \n
      \u6388\u4e88\u65b0\u7528\u6237\u5fc5\u8981\u7684\u6743\u9650\uff1a<\/p>\n
        <\/span>  <\/span> <\/p>\n
      GRANT<\/span> <\/span>ALL<\/span> <\/span>ON<\/span> <\/span>DATABASE<\/span> <\/span>mydb<\/span> <\/span>TO<\/span> <\/span>totoro<\/span>;<\/span><\/span><\/span><\/code><\/pre>\n<\/li>\n
    4. \n
      \u952e\u5165quit<\/code>\u9000\u51fa shell\u3002<\/p>\n<\/li>\n<\/ol>\n
      \u4ee5\u4e0b\u662f\u4e0e SQL shell \u4ea4\u4e92\u7684\u793a\u4f8b\u3002<\/p>\n
       <\/span>
      \n <\/span> <\/p>\n
      $<\/span> sudo docker exec<\/span> -it roach .\/cockroach sql --insecure <\/span><\/span>#<\/span> <\/span><\/span># Welcome to the CockroachDB SQL shell.<\/span> <\/span><\/span>#<\/span> All statements must be terminated by a semicolon. <\/span><\/span>#<\/span> To exit, type: \\q<\/span>. <\/span><\/span>#<\/span> <\/span><\/span># Server version: CockroachDB CCL v20.1.15 (x86_64-unknown-linux-gnu, built 2021\/04\/26 16:11:58, go1.13.9) (same version as client)<\/span> <\/span><\/span>#<\/span> Cluster ID: 7f43a490-ccd6-4c2a-9534-21f393ca80ce <\/span><\/span>#<\/span> <\/span><\/span># Enter \\? for a brief introduction.<\/span> <\/span><\/span>#<\/span> <\/span><\/span>root@:26257\/defaultdb> CREATE DATABASE mydb;<\/span> <\/span><\/span>CREATE DATABASE <\/span><\/span><\/span><\/span> <\/span><\/span><\/span><\/span>Time: 22.985478ms <\/span><\/span><\/span><\/span> <\/span><\/span><\/span><\/span>root@:26257\/defaultdb> CREATE USER totoro; <\/span><\/span><\/span>CREATE ROLE <\/span><\/span><\/span><\/span> <\/span><\/span><\/span><\/span>Time: 13.921659ms <\/span><\/span><\/span><\/span> <\/span><\/span><\/span><\/span>root@:26257\/defaultdb> GRANT ALL ON DATABASE mydb TO totoro; <\/span><\/span><\/span>GRANT <\/span><\/span><\/span><\/span> <\/span><\/span><\/span><\/span>Time: 14.217559ms <\/span><\/span><\/span><\/span> <\/span><\/span><\/span><\/span>root@:26257\/defaultdb> quit <\/span><\/span><\/span>oliver@hki:~$ <\/span><\/span><\/span><\/code><\/pre>\n
      <\/h3>\n
      \u73b0\u5728\u60a8\u5df2\u7ecf\u542f\u52a8\u5e76\u914d\u7f6e\u4e86\u6570\u636e\u5e93\u5f15\u64ce\uff0c\u60a8\u53ef\u4ee5\u5c06\u6ce8\u610f\u529b\u8f6c\u79fb\u5230\u5e94\u7528\u7a0b\u5e8f\u4e0a\u3002<\/p>\n
      docker-gs-ping<\/code>\u672c\u6a21\u5757\u7684\u793a\u4f8b\u5e94\u7528\u7a0b\u5e8f\u662f\u60a8\u5728\u524d\u9762\u7684\u6a21\u5757\u4e2d\u4f7f\u7528\u7684\u5e94\u7528\u7a0b\u5e8f\u7684\u6269\u5c55\u7248\u672c\u3002\u60a8\u6709\u4e24\u4e2a\u9009\u62e9\uff1a<\/p>\n
        \n
      • \u60a8\u53ef\u4ee5\u66f4\u65b0\u672c\u5730\u526f\u672cdocker-gs-ping<\/code>\u4ee5\u5339\u914d\u672c\u7ae0\u4e2d\u4ecb\u7ecd\u7684\u65b0\u6269\u5c55\u7248\u672c\uff1b\u6216\u8005<\/li>\n
      • \u60a8\u53ef\u4ee5\u514b\u9686 \u5b58\u50a8\u5e93\u3002\u5efa\u8bae\u91c7\u7528\u540e\u4e00\u79cd\u65b9\u6cd5\u3002<\/li>\n<\/ul>\n
        \u8981\u68c0\u67e5\u793a\u4f8b\u5e94\u7528\u7a0b\u5e8f\uff0c\u8bf7\u8fd0\u884c\uff1a<\/p>\n
         <\/span>
        \n <\/span> <\/p>\n
        $<\/span> git clone https:\/\/github.com\/docker\/docker-gs-ping-dev.git <\/span><\/span>#<\/span> ... output omitted ... <\/span><\/span><\/code><\/pre>\n
        \u8be5\u5e94\u7528\u7a0b\u5e8fmain.go<\/code>\u73b0\u5728\u5305\u62ec\u6570\u636e\u5e93\u521d\u59cb\u5316\u4ee3\u7801\u4ee5\u53ca\u5b9e\u73b0\u65b0\u4e1a\u52a1\u9700\u6c42\u7684\u4ee3\u7801\uff1a<\/p>\n
          \n
        • \u5305\u542bJSON \u7684HTTPPOST<\/code>\u8bf7\u6c42\u5fc5\u987b\u5c06\u503c\u4fdd\u5b58\u5230\u6570\u636e\u5e93\u4e2d\u3002\/send<\/code>{ \"value\" : string }<\/code><\/li>\n<\/ul>\n
          \u60a8\u8fd8\u83b7\u5f97\u4e86\u53e6\u4e00\u9879\u4e1a\u52a1\u9700\u6c42\u7684\u66f4\u65b0\u3002\u8981\u6c42\u662f\uff1a<\/p>\n
            \n
          • <3<\/code>\u5e94\u7528\u7a0b\u5e8f\u4f1a\u6839\u636e \u7684\u8bf7\u6c42\u54cd\u5e94\u4e00\u6761\u5305\u542b\u5fc3\u5f62\u7b26\u53f7 (” “) \u7684\u6587\u672c\u6d88\u606f\/<\/code>\u3002<\/li>\n<\/ul>\n
            \u73b0\u5728\u5c06\u662f\uff1a<\/p>\n
              \n
            • \n
              \u5e94\u7528\u7a0b\u5e8f\u4f7f\u7528\u5305\u542b\u5b58\u50a8\u5728\u6570\u636e\u5e93\u4e2d\u7684\u6d88\u606f\u8ba1\u6570\u7684\u5b57\u7b26\u4e32\u8fdb\u884c\u54cd\u5e94\uff0c\u8be5\u5b57\u7b26\u4e32\u62ec\u5728\u62ec\u53f7\u4e2d\u3002<\/p>\n
              \u8f93\u51fa\u793a\u4f8b\uff1aHello, Docker! (7)<\/code><\/p>\n<\/li>\n<\/ul>\n
              \u5b8c\u6574\u7684\u6e90\u4ee3\u7801\u6e05\u5355main.go<\/code>\u5982\u4e0b\u3002<\/p>\n
               <\/span>
              \n <\/span> <\/p>\n
              package<\/span> main<\/span> <\/span><\/span> <\/span><\/span>import<\/span> (<\/span> <\/span><\/span> \"context\"<\/span> <\/span><\/span> \"database\/sql\"<\/span> <\/span><\/span> \"fmt\"<\/span> <\/span><\/span> \"log\"<\/span> <\/span><\/span> \"net\/http\"<\/span> <\/span><\/span> \"os\"<\/span> <\/span><\/span> <\/span><\/span> \"github.com\/cenkalti\/backoff\/v4\"<\/span> <\/span><\/span> \"github.com\/cockroachdb\/cockroach-go\/v2\/crdb\"<\/span> <\/span><\/span> \"github.com\/labstack\/echo\/v4\"<\/span> <\/span><\/span> \"github.com\/labstack\/echo\/v4\/middleware\"<\/span> <\/span><\/span>)<\/span> <\/span><\/span> <\/span><\/span>func<\/span> main<\/span>()<\/span> {<\/span> <\/span><\/span> <\/span><\/span> e<\/span> :=<\/span> echo<\/span>.<\/span>New<\/span>()<\/span> <\/span><\/span> <\/span><\/span> e<\/span>.<\/span>Use<\/span>(<\/span>middleware<\/span>.<\/span>Logger<\/span>())<\/span> <\/span><\/span> e<\/span>.<\/span>Use<\/span>(<\/span>middleware<\/span>.<\/span>Recover<\/span>())<\/span> <\/span><\/span> <\/span><\/span> db<\/span>,<\/span> err<\/span> :=<\/span> initStore<\/span>()<\/span> <\/span><\/span> if<\/span> err<\/span> !=<\/span> nil<\/span> {<\/span> <\/span><\/span> log<\/span>.<\/span>Fatalf<\/span>(<\/span>\"failed to initialise the store: %s\"<\/span>,<\/span> err<\/span>)<\/span> <\/span><\/span> }<\/span> <\/span><\/span> defer<\/span> db<\/span>.<\/span>Close<\/span>()<\/span> <\/span><\/span> <\/span><\/span> e<\/span>.<\/span>GET<\/span>(<\/span>\"\/\"<\/span>,<\/span> func<\/span>(<\/span>c<\/span> echo<\/span>.<\/span>Context<\/span>)<\/span> error<\/span> {<\/span> <\/span><\/span> return<\/span> rootHandler<\/span>(<\/span>db<\/span>,<\/span> c<\/span>)<\/span> <\/span><\/span> })<\/span> <\/span><\/span> <\/span><\/span> e<\/span>.<\/span>GET<\/span>(<\/span>\"\/ping\"<\/span>,<\/span> func<\/span>(<\/span>c<\/span> echo<\/span>.<\/span>Context<\/span>)<\/span> error<\/span> {<\/span> <\/span><\/span> return<\/span> c<\/span>.<\/span>JSON<\/span>(<\/span>http<\/span>.<\/span>StatusOK<\/span>,<\/span> struct<\/span>{<\/span> Status<\/span> string<\/span> }{<\/span>Status<\/span>:<\/span> \"OK\"<\/span>})<\/span> <\/span><\/span> })<\/span> <\/span><\/span> <\/span><\/span> e<\/span>.<\/span>POST<\/span>(<\/span>\"\/send\"<\/span>,<\/span> func<\/span>(<\/span>c<\/span> echo<\/span>.<\/span>Context<\/span>)<\/span> error<\/span> {<\/span> <\/span><\/span> return<\/span> sendHandler<\/span>(<\/span>db<\/span>,<\/span> c<\/span>)<\/span> <\/span><\/span> })<\/span> <\/span><\/span> <\/span><\/span> httpPort<\/span> :=<\/span> os<\/span>.<\/span>Getenv<\/span>(<\/span>\"HTTP_PORT\"<\/span>)<\/span> <\/span><\/span> if<\/span> httpPort<\/span> ==<\/span> \"\"<\/span> {<\/span> <\/span><\/span> httpPort<\/span> =<\/span> \"8080\"<\/span> <\/span><\/span> }<\/span> <\/span><\/span> <\/span><\/span> e<\/span>.<\/span>Logger<\/span>.<\/span>Fatal<\/span>(<\/span>e<\/span>.<\/span>Start<\/span>(<\/span>\":\"<\/span> +<\/span> httpPort<\/span>))<\/span> <\/span><\/span>}<\/span> <\/span><\/span> <\/span><\/span>type<\/span> Message<\/span> struct<\/span> {<\/span> <\/span><\/span> Value<\/span> string<\/span> `json:\"value\"`<\/span> <\/span><\/span>}<\/span> <\/span><\/span> <\/span><\/span>func<\/span> initStore<\/span>()<\/span> (<\/span>*<\/span>sql<\/span>.<\/span>DB<\/span>,<\/span> error<\/span>)<\/span> {<\/span> <\/span><\/span> <\/span><\/span> pgConnString<\/span> :=<\/span> fmt<\/span>.<\/span>Sprintf<\/span>(<\/span>\"host=%s port=%s dbname=%s user=%s password=%s sslmode=disable\"<\/span>,<\/span> <\/span><\/span> os<\/span>.<\/span>Getenv<\/span>(<\/span>\"PGHOST\"<\/span>),<\/span> <\/span><\/span> os<\/span>.<\/span>Getenv<\/span>(<\/span>\"PGPORT\"<\/span>),<\/span> <\/span><\/span> os<\/span>.<\/span>Getenv<\/span>(<\/span>\"PGDATABASE\"<\/span>),<\/span> <\/span><\/span> os<\/span>.<\/span>Getenv<\/span>(<\/span>\"PGUSER\"<\/span>),<\/span> <\/span><\/span> os<\/span>.<\/span>Getenv<\/span>(<\/span>\"PGPASSWORD\"<\/span>),<\/span> <\/span><\/span> )<\/span> <\/span><\/span> <\/span><\/span> var<\/span> (<\/span> <\/span><\/span> db<\/span> *<\/span>sql<\/span>.<\/span>DB<\/span> <\/span><\/span> err<\/span> error<\/span> <\/span><\/span> )<\/span> <\/span><\/span> openDB<\/span> :=<\/span> func<\/span>()<\/span> error<\/span> {<\/span> <\/span><\/span> db<\/span>,<\/span> err<\/span> =<\/span> sql<\/span>.<\/span>Open<\/span>(<\/span>\"postgres\"<\/span>,<\/span> pgConnString<\/span>)<\/span> <\/span><\/span> return<\/span> err<\/span> <\/span><\/span> }<\/span> <\/span><\/span> <\/span><\/span> err<\/span> =<\/span> backoff<\/span>.<\/span>Retry<\/span>(<\/span>openDB<\/span>,<\/span> backoff<\/span>.<\/span>NewExponentialBackOff<\/span>())<\/span> <\/span><\/span> if<\/span> err<\/span> !=<\/span> nil<\/span> {<\/span> <\/span><\/span> return<\/span> nil<\/span>,<\/span> err<\/span> <\/span><\/span> }<\/span> <\/span><\/span> <\/span><\/span> if<\/span> _<\/span>,<\/span> err<\/span> :=<\/span> db<\/span>.<\/span>Exec<\/span>(<\/span> <\/span><\/span> \"CREATE TABLE IF NOT EXISTS message (value TEXT PRIMARY KEY)\"<\/span>);<\/span> err<\/span> !=<\/span> nil<\/span> {<\/span> <\/span><\/span> return<\/span> nil<\/span>,<\/span> err<\/span> <\/span><\/span> }<\/span> <\/span><\/span> <\/span><\/span> return<\/span> db<\/span>,<\/span> nil<\/span> <\/span><\/span>}<\/span> <\/span><\/span> <\/span><\/span>func<\/span> rootHandler<\/span>(<\/span>db<\/span> *<\/span>sql<\/span>.<\/span>DB<\/span>,<\/span> c<\/span> echo<\/span>.<\/span>Context<\/span>)<\/span> error<\/span> {<\/span> <\/span><\/span> r<\/span>,<\/span> err<\/span> :=<\/span> countRecords<\/span>(<\/span>db<\/span>)<\/span> <\/span><\/span> if<\/span> err<\/span> !=<\/span> nil<\/span> {<\/span> <\/span><\/span> return<\/span> c<\/span>.<\/span>HTML<\/span>(<\/span>http<\/span>.<\/span>StatusInternalServerError<\/span>,<\/span> err<\/span>.<\/span>Error<\/span>())<\/span> <\/span><\/span> }<\/span> <\/span><\/span> return<\/span> c<\/span>.<\/span>HTML<\/span>(<\/span>http<\/span>.<\/span>StatusOK<\/span>,<\/span> fmt<\/span>.<\/span>Sprintf<\/span>(<\/span>\"Hello, Docker! (%d)\\n\"<\/span>,<\/span> r<\/span>))<\/span> <\/span><\/span>}<\/span> <\/span><\/span> <\/span><\/span>func<\/span> sendHandler<\/span>(<\/span>db<\/span> *<\/span>sql<\/span>.<\/span>DB<\/span>,<\/span> c<\/span> echo<\/span>.<\/span>Context<\/span>)<\/span> error<\/span> {<\/span> <\/span><\/span> <\/span><\/span> m<\/span> :=<\/span> &<\/span>Message<\/span>{}<\/span> <\/span><\/span> <\/span><\/span> if<\/span> err<\/span> :=<\/span> c<\/span>.<\/span>Bind<\/span>(<\/span>m<\/span>);<\/span> err<\/span> !=<\/span> nil<\/span> {<\/span> <\/span><\/span> return<\/span> c<\/span>.<\/span>JSON<\/span>(<\/span>http<\/span>.<\/span>StatusInternalServerError<\/span>,<\/span> err<\/span>)<\/span> <\/span><\/span> }<\/span> <\/span><\/span> <\/span><\/span> err<\/span> :=<\/span> crdb<\/span>.<\/span>ExecuteTx<\/span>(<\/span>context<\/span>.<\/span>Background<\/span>(),<\/span> db<\/span>,<\/span> nil<\/span>,<\/span> <\/span><\/span> func<\/span>(<\/span>tx<\/span> *<\/span>sql<\/span>.<\/span>Tx<\/span>)<\/span> error<\/span> {<\/span> <\/span><\/span> _<\/span>,<\/span> err<\/span> :=<\/span> tx<\/span>.<\/span>Exec<\/span>(<\/span> <\/span><\/span> \"INSERT INTO message (value) VALUES ($1) ON CONFLICT (value) DO UPDATE SET value = excluded.value\"<\/span>,<\/span> <\/span><\/span> m<\/span>.<\/span>Value<\/span>,<\/span> <\/span><\/span> )<\/span> <\/span><\/span> if<\/span> err<\/span> !=<\/span> nil<\/span> {<\/span> <\/span><\/span> return<\/span> c<\/span>.<\/span>JSON<\/span>(<\/span>http<\/span>.<\/span>StatusInternalServerError<\/span>,<\/span> err<\/span>)<\/span> <\/span><\/span> }<\/span> <\/span><\/span> return<\/span> nil<\/span> <\/span><\/span> })<\/span> <\/span><\/span> <\/span><\/span> if<\/span> err<\/span> !=<\/span> nil<\/span> {<\/span> <\/span><\/span> return<\/span> c<\/span>.<\/span>JSON<\/span>(<\/span>http<\/span>.<\/span>StatusInternalServerError<\/span>,<\/span> err<\/span>)<\/span> <\/span><\/span> }<\/span> <\/span><\/span> <\/span><\/span> return<\/span> c<\/span>.<\/span>JSON<\/span>(<\/span>http<\/span>.<\/span>StatusOK<\/span>,<\/span> m<\/span>)<\/span> <\/span><\/span>}<\/span> <\/span><\/span> <\/span><\/span>func<\/span> countRecords<\/span>(<\/span>db<\/span> *<\/span>sql<\/span>.<\/span>DB<\/span>)<\/span> (<\/span>int<\/span>,<\/span> error<\/span>)<\/span> {<\/span> <\/span><\/span> <\/span><\/span> rows<\/span>,<\/span> err<\/span> :=<\/span> db<\/span>.<\/span>Query<\/span>(<\/span>\"SELECT COUNT(*) FROM message\"<\/span>)<\/span> <\/span><\/span> if<\/span> err<\/span> !=<\/span> nil<\/span> {<\/span> <\/span><\/span> return<\/span> 0<\/span>,<\/span> err<\/span> <\/span><\/span> }<\/span> <\/span><\/span> defer<\/span> rows<\/span>.<\/span>Close<\/span>()<\/span> <\/span><\/span> <\/span><\/span> count<\/span> :=<\/span> 0<\/span> <\/span><\/span> for<\/span> rows<\/span>.<\/span>Next<\/span>()<\/span> {<\/span> <\/span><\/span> if<\/span> err<\/span> :=<\/span> rows<\/span>.<\/span>Scan<\/span>(<\/span>&<\/span>count<\/span>);<\/span> err<\/span> !=<\/span> nil<\/span> {<\/span> <\/span><\/span> return<\/span> 0<\/span>,<\/span> err<\/span> <\/span><\/span> }<\/span> <\/span><\/span> rows<\/span>.<\/span>Close<\/span>()<\/span> <\/span><\/span> }<\/span> <\/span><\/span> <\/span><\/span> return<\/span> count<\/span>,<\/span> nil<\/span> <\/span><\/span>}<\/span><\/span><\/span><\/code><\/pre>\n
              \u5b58\u50a8\u5e93\u8fd8\u5305\u62ec\uff0c\u5b83\u4e0e\u524d\u9762\u6a21\u5757\u4e2d\u4ecb\u7ecd\u7684Dockerfile<\/code>\u591a\u9636\u6bb5\u51e0\u4e4e\u5b8c\u5168\u76f8\u540c\u3002Dockerfile<\/code>\u5b83\u4f7f\u7528\u5b98\u65b9 Docker Go \u6620\u50cf\u6765\u6784\u5efa\u5e94\u7528\u7a0b\u5e8f\uff0c\u7136\u540e\u901a\u8fc7\u5c06\u7f16\u8bd1\u540e\u7684\u4e8c\u8fdb\u5236\u6587\u4ef6\u653e\u5165\u66f4\u7cbe\u7b80\u3001\u65e0 distroless \u7684\u6620\u50cf\u4e2d\u6765\u6784\u5efa\u6700\u7ec8\u6620\u50cf\u3002<\/p>\n
              \u65e0\u8bba\u60a8\u662f\u66f4\u65b0\u65e7\u7684\u793a\u4f8b\u5e94\u7528\u7a0b\u5e8f\uff0c\u8fd8\u662f\u7b7e\u51fa\u65b0\u7684\u793a\u4f8b\u5e94\u7528\u7a0b\u5e8f\uff0c\u90fd\u5fc5\u987b\u6784\u5efa\u8fd9\u4e2a\u65b0\u7684 Docker \u6620\u50cf\u4ee5\u53cd\u6620\u5bf9\u5e94\u7528\u7a0b\u5e8f\u6e90\u4ee3\u7801\u7684\u66f4\u6539\u3002<\/p>\n
              <\/h3>\n
              \u60a8\u53ef\u4ee5\u4f7f\u7528\u719f\u6089\u7684\u547d\u4ee4\u6784\u5efa\u6620\u50cfbuild<\/code>\uff1a<\/p>\n
               <\/span>
              \n <\/span> <\/p>\n
              $<\/span> docker build --tag docker-gs-ping-roach . <\/span><\/span><\/code><\/pre>\n
              <\/h3>\n
              \u73b0\u5728\uff0c\u8fd0\u884c\u60a8\u7684\u5bb9\u5668\u3002\u8fd9\u6b21\u60a8\u9700\u8981\u8bbe\u7f6e\u4e00\u4e9b\u73af\u5883\u53d8\u91cf\uff0c\u4ee5\u4fbf\u60a8\u7684\u5e94\u7528\u7a0b\u5e8f\u77e5\u9053\u5982\u4f55\u8bbf\u95ee\u6570\u636e\u5e93\u3002\u73b0\u5728\uff0c\u60a8\u5c06\u5728docker run<\/code>\u547d\u4ee4\u4e2d\u76f4\u63a5\u6267\u884c\u6b64\u64cd\u4f5c\u3002\u7a0d\u540e\u60a8\u5c06\u770b\u5230\u4f7f\u7528 Docker Compose \u7684\u66f4\u65b9\u4fbf\u7684\u65b9\u6cd5\u3002<\/p>\n
              \n
              \u7b14\u8bb0<\/strong><\/p>\n
              \u7531\u4e8e\u60a8\u5728\u4e0d\u5b89\u5168\u6a21\u5f0f\u4e0b\u8fd0\u884c CockroachDB \u96c6\u7fa4\uff0c\u56e0\u6b64\u5bc6\u7801\u7684\u503c\u53ef\u4ee5\u662f\u4efb\u4f55\u503c\u3002<\/p>\n
              \u5728\u751f\u4ea7\u4e2d\uff0c\u4e0d\u8981\u5728\u4e0d\u5b89\u5168\u6a21\u5f0f\u4e0b\u8fd0\u884c\u3002<\/p>\n<\/blockquote>\n
               <\/span>
              \n <\/span> <\/p>\n
              $<\/span> docker run -it --rm -d \\ <\/span><\/span><\/span><\/span> --network mynet \\ <\/span><\/span><\/span> --name rest-server \\ <\/span><\/span><\/span> -p 80:8080 \\ <\/span><\/span><\/span> -e PGUSER=totoro \\ <\/span><\/span><\/span> -e PGPASSWORD=myfriend \\ <\/span><\/span><\/span> -e PGHOST=db \\ <\/span><\/span><\/span> -e PGPORT=26257 \\ <\/span><\/span><\/span> -e PGDATABASE=mydb \\ <\/span><\/span><\/span> docker-gs-ping-roach <\/span><\/span><\/span><\/code><\/pre>\n
              \u5173\u4e8e\u8fd9\u4e2a\u547d\u4ee4\u6709\u51e0\u70b9\u9700\u8981\u6ce8\u610f\u3002<\/p>\n
                \n
              • \n
                \u8fd9\u6b21\u60a8\u5c06\u5bb9\u5668\u7aef\u53e3\u6620\u5c048080<\/code>\u5230\u4e3b\u673a\u7aef\u53e3\u300280<\/code>\u56e0\u6b64\uff0c\u5bf9\u4e8eGET<\/code>\u8bf7\u6c42\uff0c\u4f60\u53ef\u4ee5\u4ece\u5b57\u9762\u4e0a\u9003\u8131curl localhost<\/code>\uff1a<\/p>\n
                  <\/span>  <\/span> <\/p>\n
                $<\/span> curl localhost <\/span><\/span>Hello, Docker! (0) <\/span><\/span><\/span><\/code><\/pre>\n
                \u6216\u8005\uff0c\u5982\u679c\u60a8\u613f\u610f\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528\u6b63\u786e\u7684 URL\uff1a<\/p>\n
                  <\/span>  <\/span> <\/p>\n
                $<\/span> curl http:\/\/localhost\/ <\/span><\/span>Hello, Docker! (0) <\/span><\/span><\/span><\/code><\/pre>\n<\/li>\n
              • \n
                0<\/code>\u76ee\u524d\u5df2\u5b58\u50a8\u7684\u6d88\u606f\u603b\u6570\u3002\u8fd9\u5f88\u597d\uff0c\u56e0\u4e3a\u60a8\u8fd8\u6ca1\u6709\u5728\u60a8\u7684\u7533\u8bf7\u4e2d\u53d1\u5e03\u4efb\u4f55\u5185\u5bb9\u3002<\/p>\n<\/li>\n
              • \n
                \u60a8\u53ef\u4ee5\u901a\u8fc7\u4e3b\u673a\u540d\uff08\u5373 \uff09\u6765\u5f15\u7528\u6570\u636e\u5e93\u5bb9\u5668db<\/code>\u3002\u8fd9\u5c31\u662f--hostname db<\/code>\u542f\u52a8\u6570\u636e\u5e93\u5bb9\u5668\u65f6\u7684\u539f\u56e0\u3002<\/p>\n<\/li>\n
              • \n
                \u5b9e\u9645\u7684\u5bc6\u7801\u5e76\u4e0d\u91cd\u8981\uff0c\u4f46\u5fc5\u987b\u5c06\u5176\u8bbe\u7f6e\u4e3a\u907f\u514d\u6df7\u6dc6\u793a\u4f8b\u5e94\u7528\u7a0b\u5e8f\u7684\u5bc6\u7801\u3002<\/p>\n<\/li>\n
              • \n
                \u60a8\u521a\u521a\u8fd0\u884c\u7684\u5bb9\u5668\u540d\u4e3arest-server<\/code>\u3002\u8fd9\u4e9b\u540d\u79f0\u5bf9\u4e8e\u7ba1\u7406\u5bb9\u5668\u751f\u547d\u5468\u671f\u5f88\u6709\u7528\uff1a<\/p>\n
                  <\/span>  <\/span> <\/p>\n
                #<\/span> Don't do this just yet, it'<\/span>s only an example: <\/span><\/span>$<\/span> docker container rm --force rest-server <\/span><\/span><\/code><\/pre>\n<\/li>\n<\/ul>\n
                <\/h3>\n
                \u5728\u4e0a\u4e00\u8282\u4e2d\uff0c\u60a8\u5df2\u7ecf\u6d4b\u8bd5\u8fc7\u67e5\u8be2\u5e94\u7528\u7a0b\u5e8f\uff0cGET<\/code>\u5e76\u4e14\u5b83\u4e3a\u5b58\u50a8\u7684\u6d88\u606f\u8ba1\u6570\u5668\u8fd4\u56de\u96f6\u3002\u73b0\u5728\uff0c\u5411\u5176\u53d1\u5e03\u4e00\u4e9b\u6d88\u606f\uff1a<\/p>\n
                 <\/span>
                \n <\/span> <\/p>\n
                $<\/span> curl --request POST \\ <\/span><\/span><\/span><\/span> --url http:\/\/localhost\/send \\ <\/span><\/span><\/span> --header 'content-type: application\/json' \\ <\/span><\/span><\/span> --data '{\"value\": \"Hello, Docker!\"}' <\/span><\/span><\/span><\/code><\/pre>\n
                \u5e94\u7528\u7a0b\u5e8f\u54cd\u5e94\u6d88\u606f\u5185\u5bb9\uff0c\u8fd9\u610f\u5473\u7740\u5b83\u5df2\u4fdd\u5b58\u5728\u6570\u636e\u5e93\u4e2d\uff1a<\/p>\n
                 <\/span>
                \n <\/span> <\/p>\n
                {<\/span>\"value\"<\/span>:<\/span>\"Hello, Docker!\"<\/span>}<\/span><\/span><\/span><\/code><\/pre>\n
                \u53d1\u9001\u53e6\u4e00\u6761\u6d88\u606f\uff1a<\/p>\n
                 <\/span>
                \n <\/span> <\/p>\n
                $<\/span> curl --request POST \\ <\/span><\/span><\/span><\/span> --url http:\/\/localhost\/send \\ <\/span><\/span><\/span> --header 'content-type: application\/json' \\ <\/span><\/span><\/span> --data '{\"value\": \"Hello, Oliver!\"}' <\/span><\/span><\/span><\/code><\/pre>\n
                \u518d\u6b21\uff0c\u60a8\u4f1a\u6536\u5230\u6d88\u606f\u7684\u503c\uff1a<\/p>\n
                 <\/span>
                \n <\/span> <\/p>\n
                {<\/span>\"value\"<\/span>:<\/span>\"Hello, Oliver!\"<\/span>}<\/span><\/span><\/span><\/code><\/pre>\n
                \u8fd0\u884ccurl\u5e76\u67e5\u770b\u6d88\u606f\u8ba1\u6570\u5668\u663e\u793a\u7684\u5185\u5bb9\uff1a<\/p>\n
                 <\/span>
                \n <\/span> <\/p>\n
                $<\/span> curl localhost <\/span><\/span>Hello, Docker! (2) <\/span><\/span><\/span><\/code><\/pre>\n
                \u5728\u6b64\u793a\u4f8b\u4e2d\uff0c\u60a8\u53d1\u9001\u4e86\u4e24\u6761\u6d88\u606f\uff0c\u6570\u636e\u5e93\u4fdd\u7559\u4e86\u5b83\u4eec\u3002\u6216\u8005\u6709\u5417\uff1f\u505c\u6b62\u5e76\u5220\u9664\u6240\u6709\u5bb9\u5668\uff0c\u4f46\u4e0d\u5220\u9664\u5377\uff0c\u7136\u540e\u91cd\u8bd5\u3002<\/p>\n
                \u9996\u5148\uff0c\u505c\u6b62\u5bb9\u5668\uff1a<\/p>\n
                 <\/span>
                \n <\/span> <\/p>\n
                $<\/span> docker container stop rest-server roach <\/span><\/span>rest-server <\/span><\/span><\/span>roach <\/span><\/span><\/span><\/code><\/pre>\n
                \u7136\u540e\uff0c\u5220\u9664\u5b83\u4eec\uff1a<\/p>\n
                 <\/span>
                \n <\/span> <\/p>\n
                $<\/span> docker container rm rest-server roach <\/span><\/span>rest-server <\/span><\/span><\/span>roach <\/span><\/span><\/span><\/code><\/pre>\n
                \u9a8c\u8bc1\u5b83\u4eec\u662f\u5426\u5df2\u7ecf\u6d88\u5931\uff1a<\/p>\n
                 <\/span>
                \n <\/span> <\/p>\n
                $<\/span> docker container list --all <\/span><\/span>CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES <\/span><\/span><\/span><\/code><\/pre>\n
                \u7136\u540e\u518d\u6b21\u542f\u52a8\u5b83\u4eec\uff0c\u9996\u5148\u662f\u6570\u636e\u5e93\uff1a<\/p>\n
                 <\/span>
                \n <\/span> <\/p>\n
                $<\/span> docker run -d \\ <\/span><\/span><\/span><\/span> --name roach \\ <\/span><\/span><\/span> --hostname db \\ <\/span><\/span><\/span> --network mynet \\ <\/span><\/span><\/span> -p 26257:26257 \\ <\/span><\/span><\/span> -p 8080:8080 \\ <\/span><\/span><\/span> -v roach:\/cockroach\/cockroach-data \\ <\/span><\/span><\/span> cockroachdb\/cockroach:latest-v20.1 start-single-node \\ <\/span><\/span><\/span> --insecure <\/span><\/span><\/span><\/code><\/pre>\n
                \u63a5\u4e0b\u6765\u662f\u670d\u52a1\uff1a<\/p>\n
                 <\/span>
                \n <\/span> <\/p>\n
                $<\/span> docker run -it --rm -d \\ <\/span><\/span><\/span><\/span> --network mynet \\ <\/span><\/span><\/span> --name rest-server \\ <\/span><\/span><\/span> -p 80:8080 \\ <\/span><\/span><\/span> -e PGUSER=totoro \\ <\/span><\/span><\/span> -e PGPASSWORD=myfriend \\ <\/span><\/span><\/span> -e PGHOST=db \\ <\/span><\/span><\/span> -e PGPORT=26257 \\ <\/span><\/span><\/span> -e PGDATABASE=mydb \\ <\/span><\/span><\/span> docker-gs-ping-roach <\/span><\/span><\/span><\/code><\/pre>\n
                \u6700\u540e\uff0c\u67e5\u8be2\u60a8\u7684\u670d\u52a1\uff1a<\/p>\n
                 <\/span>
                \n <\/span> <\/p>\n
                $<\/span> curl localhost <\/span><\/span>Hello, Docker! (2) <\/span><\/span><\/span><\/code><\/pre>\n
                \u4f1f\u5927\u7684\uff01\u5c3d\u7ba1\u60a8\u4e0d\u4ec5\u505c\u6b62\u4e86\u5bb9\u5668\uff0c\u800c\u4e14\u8fd8\u5728\u542f\u52a8\u65b0\u5b9e\u4f8b\u4e4b\u524d\u5220\u9664\u4e86\u5b83\u4eec\uff0c\u4f46\u6570\u636e\u5e93\u4e2d\u7684\u8bb0\u5f55\u8ba1\u6570\u662f\u6b63\u786e\u7684\u3002\u4e0d\u540c\u4e4b\u5904\u5728\u4e8e\u60a8\u91cd\u590d\u4f7f\u7528\u7684 CockroachDB \u7684\u6258\u7ba1\u5377\u3002\u65b0\u7684 CockroachDB \u5bb9\u5668\u5df2\u4ece\u78c1\u76d8\u8bfb\u53d6\u6570\u636e\u5e93\u6587\u4ef6\uff0c\u5c31\u50cf\u5b83\u5728\u5bb9\u5668\u5916\u90e8\u8fd0\u884c\u65f6\u901a\u5e38\u6240\u505a\u7684\u90a3\u6837\u3002<\/p>\n
                <\/h3>\n
                \u8bf7\u8bb0\u4f4f\uff0c\u60a8\u6b63\u5728\u4e0d\u5b89\u5168\u6a21\u5f0f\u4e0b\u8fd0\u884c CockroachDB\u3002\u73b0\u5728\u60a8\u5df2\u7ecf\u6784\u5efa\u5e76\u6d4b\u8bd5\u4e86\u5e94\u7528\u7a0b\u5e8f\uff0c\u662f\u65f6\u5019\u5728\u7ee7\u7eed\u4e4b\u524d\u7ed3\u675f\u6240\u6709\u4e8b\u60c5\u4e86\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5217\u51fa\u6b63\u5728\u8fd0\u884c\u7684\u5bb9\u5668list<\/code>\uff1a<\/p>\n
                 <\/span>
                \n <\/span> <\/p>\n
                $<\/span> docker container list <\/span><\/span><\/code><\/pre>\n
                \u73b0\u5728\u60a8\u5df2\u7ecf\u77e5\u9053\u4e86\u5bb9\u5668 ID\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528docker container stop<\/code>\u548cdocker container rm<\/code>\uff0c\u5982\u524d\u9762\u7684\u6a21\u5757\u4e2d\u6240\u793a\u3002<\/p>\n
                docker-gs-ping-roach<\/code>\u5728\u7ee7\u7eed\u4e4b\u524d\u505c\u6b62 CockroachDB \u548c\u5bb9\u5668\u3002<\/p>\n
                <\/h2>\n
                \u6b64\u65f6\uff0c\u60a8\u53ef\u80fd\u60f3\u77e5\u9053\u662f\u5426\u6709\u529e\u6cd5\u907f\u514d\u5904\u7406\u547d\u4ee4\u7684\u957f\u53c2\u6570\u5217\u8868docker<\/code>\u3002\u60a8\u5728\u672c\u7cfb\u5217\u4e2d\u4f7f\u7528\u7684\u73a9\u5177\u793a\u4f8b\u9700\u8981\u4e94\u4e2a\u73af\u5883\u53d8\u91cf\u6765\u5b9a\u4e49\u4e0e\u6570\u636e\u5e93\u7684\u8fde\u63a5\u3002\u771f\u6b63\u7684\u5e94\u7528\u7a0b\u5e8f\u53ef\u80fd\u9700\u8981\u5f88\u591a\u5f88\u591a\u3002\u7136\u540e\u8fd8\u6709\u4e00\u4e2a\u4f9d\u8d56\u95ee\u9898\u3002\u7406\u60f3\u60c5\u51b5\u4e0b\uff0c\u60a8\u5e0c\u671b\u786e\u4fdd\u5728\u8fd0\u884c\u5e94\u7528\u7a0b\u5e8f\u4e4b\u524d\u542f\u52a8\u6570\u636e\u5e93\u3002\u542f\u52a8\u6570\u636e\u5e93\u5b9e\u4f8b\u53ef\u80fd\u9700\u8981\u53e6\u4e00\u4e2a\u5e26\u6709\u8bb8\u591a\u9009\u9879\u7684 Docker \u547d\u4ee4\u3002\u4f46\u6709\u4e00\u79cd\u66f4\u597d\u7684\u65b9\u6cd5\u6765\u534f\u8c03\u8fd9\u4e9b\u90e8\u7f72\u4ee5\u5b9e\u73b0\u672c\u5730\u5f00\u53d1\u76ee\u7684\u3002<\/p>\n
                docker-gs-ping-roach<\/code>\u5728\u672c\u90e8\u5206\u4e2d\uff0c\u60a8\u5c06\u521b\u5efa\u4e00\u4e2a Docker Compose \u6587\u4ef6\uff0c\u4ee5\u4f7f\u7528\u5355\u4e2a\u547d\u4ee4\u542f\u52a8\u5e94\u7528\u7a0b\u5e8f\u548c CockroachDB \u6570\u636e\u5e93\u5f15\u64ce\u3002<\/p>\n
                <\/h3>\n
                \u5728\u5e94\u7528\u7a0b\u5e8f\u7684\u76ee\u5f55\u4e2d\uff0c\u521b\u5efa\u4e00\u4e2a\u540d\u4e3adocker-compose.yml<\/code>\u4ee5\u4e0b\u5185\u200b\u200b\u5bb9\u7684\u65b0\u6587\u672c\u6587\u4ef6\u3002<\/p>\n
                 <\/span>
                \n <\/span> <\/p>\n
                version<\/span>:<\/span> <\/span>'3.8'<\/span> <\/span><\/span><\/span> <\/span><\/span><\/span><\/span>services<\/span>:<\/span> <\/span><\/span><\/span> <\/span>docker-gs-ping-roach<\/span>:<\/span> <\/span><\/span><\/span> <\/span>depends_on<\/span>:<\/span> <\/span><\/span><\/span> <\/span>- roach<\/span> <\/span><\/span><\/span> <\/span>build<\/span>:<\/span> <\/span><\/span><\/span> <\/span>context<\/span>:<\/span> <\/span>.<\/span> <\/span><\/span><\/span> <\/span>container_name<\/span>:<\/span> <\/span>rest-server<\/span> <\/span><\/span><\/span> <\/span>hostname<\/span>:<\/span> <\/span>rest-server<\/span> <\/span><\/span><\/span> <\/span>networks<\/span>:<\/span> <\/span><\/span><\/span> <\/span>- mynet<\/span> <\/span><\/span><\/span> <\/span>ports<\/span>:<\/span> <\/span><\/span><\/span> <\/span>- 80<\/span>:<\/span>8080<\/span> <\/span><\/span><\/span> <\/span>environment<\/span>:<\/span> <\/span><\/span><\/span> <\/span>- PGUSER=${PGUSER:-totoro}<\/span> <\/span><\/span><\/span> <\/span>- PGPASSWORD=${PGPASSWORD:?database password not set}<\/span> <\/span><\/span><\/span> <\/span>- PGHOST=${PGHOST:-db}<\/span> <\/span><\/span><\/span> <\/span>- PGPORT=${PGPORT:-26257}<\/span> <\/span><\/span><\/span> <\/span>- PGDATABASE=${PGDATABASE:-mydb}<\/span> <\/span><\/span><\/span> <\/span>deploy<\/span>:<\/span> <\/span><\/span><\/span> <\/span>restart_policy<\/span>:<\/span> <\/span><\/span><\/span> <\/span>condition<\/span>:<\/span> <\/span>on<\/span>-failure<\/span> <\/span><\/span><\/span> <\/span>roach<\/span>:<\/span> <\/span><\/span><\/span> <\/span>image<\/span>:<\/span> <\/span>cockroachdb\/cockroach:latest-v20.1<\/span> <\/span><\/span><\/span> <\/span>container_name<\/span>:<\/span> <\/span>roach<\/span> <\/span><\/span><\/span> <\/span>hostname<\/span>:<\/span> <\/span>db<\/span> <\/span><\/span><\/span> <\/span>networks<\/span>:<\/span> <\/span><\/span><\/span> <\/span>- mynet<\/span> <\/span><\/span><\/span> <\/span>ports<\/span>:<\/span> <\/span><\/span><\/span> <\/span>- 26257<\/span>:<\/span>26257<\/span> <\/span><\/span><\/span> <\/span>- 8080<\/span>:<\/span>8080<\/span> <\/span><\/span><\/span> <\/span>volumes<\/span>:<\/span> <\/span><\/span><\/span> <\/span>- roach:\/cockroach\/cockroach-data<\/span> <\/span><\/span><\/span> <\/span>command<\/span>:<\/span> <\/span>start-single-node --insecure<\/span> <\/span><\/span><\/span> <\/span><\/span><\/span><\/span>volumes<\/span>:<\/span> <\/span><\/span><\/span> <\/span>roach<\/span>:<\/span> <\/span><\/span><\/span> <\/span><\/span><\/span><\/span>networks<\/span>:<\/span> <\/span><\/span><\/span> <\/span>mynet<\/span>:<\/span> <\/span><\/span><\/span> <\/span>driver<\/span>:<\/span> <\/span>bridge<\/span><\/span><\/span><\/code><\/pre>\n
                \u8fd9\u4e2a Docker Compose \u914d\u7f6e\u975e\u5e38\u65b9\u4fbf\uff0c\u56e0\u4e3a\u60a8\u4e0d\u5fc5\u952e\u5165\u6240\u6709\u53c2\u6570\u6765\u4f20\u9012\u7ed9docker run<\/code>\u547d\u4ee4\u3002\u60a8\u53ef\u4ee5\u5728 Docker Compose \u6587\u4ef6\u4e2d\u4ee5\u58f0\u660e\u65b9\u5f0f\u6267\u884c\u6b64\u64cd\u4f5c\u3002 Docker \u975e\u5e38\u5e7f\u6cdb\uff0c\u5305\u542b Docker Compose \u6587\u4ef6\u683c\u5f0f\u7684\u5b8c\u6574\u53c2\u8003\u3002<\/p>\n
                <\/h3>\n
                Docker Compose \u5c06\u81ea\u52a8\u4ece.env<\/code>\u6587\u4ef6\u4e2d\u8bfb\u53d6\u73af\u5883\u53d8\u91cf\uff08\u5982\u679c\u53ef\u7528\uff09\u3002\u7531\u4e8e\u60a8\u7684Compose\u6587\u4ef6\u9700\u8981PGPASSWORD<\/code>\u8bbe\u7f6e\uff0c\u56e0\u6b64\u5728.env<\/code>\u6587\u4ef6\u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u5185\u5bb9\uff1a<\/p>\n
                 <\/span>
                \n <\/span> <\/p>\n
                PGPASSWORD<\/span>=<\/span>whatever<\/span><\/span><\/code><\/pre>\n
                \u5bf9\u4e8e\u672c\u793a\u4f8b\u6765\u8bf4\uff0c\u786e\u5207\u7684\u503c\u5e76\u4e0d\u91cd\u8981\uff0c\u56e0\u4e3a\u60a8\u5728\u4e0d\u5b89\u5168\u6a21\u5f0f\u4e0b\u8fd0\u884c CockroachDB\u3002\u786e\u4fdd\u5c06\u53d8\u91cf\u8bbe\u7f6e\u4e3a\u67d0\u4e2a\u503c\u4ee5\u907f\u514d\u51fa\u73b0\u9519\u8bef\u3002<\/p>\n
                <\/h3>\n
                \u5982\u679c\u6ca1\u6709\u63d0\u4f9b\u6807\u5fd7\uff0c\u6587\u4ef6\u540ddocker-compose.yml<\/code>\u662f\u547d\u4ee4\u8bc6\u522b\u7684\u9ed8\u8ba4\u6587\u4ef6\u540d\u3002\u8fd9\u610f\u5473\u7740\u5982\u679c\u60a8\u7684\u73af\u5883\u6709\u6b64\u7c7b\u8981\u6c42\uff0c\u60a8\u53ef\u4ee5\u62e5\u6709\u591a\u4e2a Docker Compose \u6587\u4ef6\u3002\u6b64\u5916\uff0cDocker Compose \u6587\u4ef6\u662f…\u53ef\u7ec4\u5408\u7684\uff08\u53cc\u5173\u8bed\uff09\uff0c\u56e0\u6b64\u53ef\u4ee5\u5728\u547d\u4ee4\u884c\u4e0a\u6307\u5b9a\u591a\u4e2a\u6587\u4ef6\u4ee5\u5c06\u90e8\u5206\u914d\u7f6e\u5408\u5e76\u5728\u4e00\u8d77\u3002\u4ee5\u4e0b\u5217\u8868\u53ea\u662f\u6b64\u7c7b\u529f\u80fd\u975e\u5e38\u6709\u7528\u7684\u573a\u666f\u7684\u4e00\u4e9b\u793a\u4f8b\uff1adocker compose<\/code>-f<\/code><\/p>\n
                  \n
                • \u5bf9\u672c\u5730\u5f00\u53d1\u7684\u6e90\u4ee3\u7801\u4f7f\u7528\u7ed1\u5b9a\u6302\u8f7d\uff0c\u4f46\u5728\u8fd0\u884c CI \u6d4b\u8bd5\u65f6\u4e0d\u4f7f\u7528\uff1b<\/li>\n
                • \u5728\u4e3a\u67d0\u4e9b API \u5e94\u7528\u7a0b\u5e8f\u7684\u524d\u7aef\u4f7f\u7528\u9884\u6784\u5efa\u6620\u50cf\u4e0e\u4e3a\u6e90\u4ee3\u7801\u521b\u5efa\u7ed1\u5b9a\u5b89\u88c5\u4e4b\u95f4\u8fdb\u884c\u5207\u6362\uff1b<\/li>\n
                • \u6dfb\u52a0\u7528\u4e8e\u96c6\u6210\u6d4b\u8bd5\u7684\u9644\u52a0\u670d\u52a1\uff1b<\/li>\n
                • \u8fd8\u6709\u5f88\u591a…<\/li>\n<\/ul>\n
                  \u60a8\u4e0d\u4f1a\u5728\u8fd9\u91cc\u4ecb\u7ecd\u4efb\u4f55\u8fd9\u4e9b\u9ad8\u7ea7\u7528\u4f8b\u3002<\/p>\n
                  <\/h3>\n
                  Docker Compose \u771f\u6b63\u5f88\u9177\u7684\u529f\u80fd\u4e4b\u4e00\u662f \u3002\u60a8\u53ef\u4ee5\u5728 Compose \u6587\u4ef6environment<\/code>\u90e8\u5206\u4e2d\u770b\u5230\u4e00\u4e9b\u793a\u4f8b\u3002\u901a\u8fc7\u4e00\u4e2a\u4f8b\u5b50\uff1a<\/p>\n
                    \n
                  • PGUSER=${PGUSER:-totoro}<\/code>\u610f\u5473\u7740\u5728\u5bb9\u5668\u5185\u90e8\uff0c\u73af\u5883\u53d8\u91cfPGUSER<\/code>\u5e94\u8bbe\u7f6e\u4e3a\u4e0e\u8fd0\u884c Docker Compose \u7684\u4e3b\u673a\u4e0a\u76f8\u540c\u7684\u503c\u3002\u5982\u679c\u4e3b\u673a\u4e0a\u6ca1\u6709\u540c\u540d\u7684\u73af\u5883\u53d8\u91cf\uff0c\u5219\u5bb9\u5668\u5185\u7684\u53d8\u91cf\u5c06\u83b7\u53d6\u9ed8\u8ba4\u503ctotoro<\/code>\u3002<\/li>\n
                  • PGPASSWORD=${PGPASSWORD:?database password not set}<\/code>\u610f\u5473\u7740\u5982\u679cPGPASSWORD<\/code>\u4e3b\u673a\u4e0a\u672a\u8bbe\u7f6e\u73af\u5883\u53d8\u91cf\uff0cDocker Compose \u5c06\u663e\u793a\u9519\u8bef\u3002\u8fd9\u662f\u53ef\u4ee5\u7684\uff0c\u56e0\u4e3a\u60a8\u4e0d\u60f3\u5bf9\u5bc6\u7801\u7684\u9ed8\u8ba4\u503c\u8fdb\u884c\u786c\u7f16\u7801\u3002\u60a8\u53ef\u4ee5\u5728.env<\/code>\u8ba1\u7b97\u673a\u672c\u5730\u7684\u6587\u4ef6\u4e2d\u8bbe\u7f6e\u5bc6\u7801\u503c\u3002.env<\/code>\u6dfb\u52a0.gitignore<\/code>\u4ee5\u9632\u6b62\u673a\u5bc6\u88ab\u7b7e\u5165\u7248\u672c\u63a7\u5236\u59cb\u7ec8\u662f\u4e00\u4e2a\u597d\u4e3b\u610f\u3002<\/li>\n<\/ul>\n
                    \u5b58\u5728\u5904\u7406\u672a\u5b9a\u4e49\u6216\u7a7a\u503c\u7684\u5176\u4ed6\u65b9\u6cd5\uff0c\u5982 Docker \u6587\u6863\u7684<\/p>\n
                    <\/h3>\n
                    \u5728\u5e94\u7528\u5bf9 Compose \u914d\u7f6e\u6587\u4ef6\u6240\u505a\u7684\u66f4\u6539\u4e4b\u524d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u9a8c\u8bc1\u914d\u7f6e\u6587\u4ef6\u7684\u5185\u5bb9\uff1a<\/p>\n
                     <\/span>
                    \n <\/span> <\/p>\n
                    $<\/span> docker compose config <\/span><\/span><\/code><\/pre>\n
                    \u8fd0\u884c\u6b64\u547d\u4ee4\u65f6\uff0cDocker Compose \u4f1a\u8bfb\u53d6\u8be5\u6587\u4ef6docker-compose.yml<\/code>\uff0c\u5c06\u5176\u89e3\u6790\u4e3a\u5185\u5b58\u4e2d\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5728\u53ef\u80fd\u7684\u60c5\u51b5\u4e0b\u8fdb\u884c\u9a8c\u8bc1\uff0c\u5e76\u4ece\u5176\u5185\u90e8\u8868\u793a\u6253\u5370\u56de\u8be5\u914d\u7f6e\u6587\u4ef6\u7684\u91cd\u5efa\u5185\u5bb9\u3002\u5982\u679c\u7531\u4e8e\u9519\u8bef\u800c\u65e0\u6cd5\u5b9e\u73b0\uff0cDocker \u4f1a\u6253\u5370\u4e00\u6761\u9519\u8bef\u6d88\u606f\u3002<\/p>\n
                    <\/h3>\n
                    \u542f\u52a8\u60a8\u7684\u5e94\u7528\u7a0b\u5e8f\u5e76\u786e\u8ba4\u5b83\u6b63\u5728\u8fd0\u884c\u3002<\/p>\n
                     <\/span>
                    \n <\/span> <\/p>\n
                    $<\/span> docker compose up --build <\/span><\/span><\/code><\/pre>\n
                    \u60a8\u4f20\u9012\u4e86\u8be5--build<\/code>\u6807\u5fd7\uff0c\u4ee5\u4fbf Docker \u5c06\u7f16\u8bd1\u60a8\u7684\u6620\u50cf\uff0c\u7136\u540e\u542f\u52a8\u5b83\u3002<\/p>\n
                    \n
                    \u7b14\u8bb0<\/strong><\/p>\n
                    Docker Compose \u662f\u4e00\u4e2a\u6709\u7528\u7684\u5de5\u5177\uff0c\u4f46\u5b83\u6709\u81ea\u5df1\u7684\u602a\u7656\u3002\u4f8b\u5982\uff0c\u9664\u975e--build<\/code>\u63d0\u4f9b\u4e86\u6807\u5fd7\uff0c\u5426\u5219\u66f4\u65b0\u6e90\u4ee3\u7801\u65f6\u4e0d\u4f1a\u89e6\u53d1\u91cd\u5efa\u3002\u7f16\u8f91\u6e90\u4ee3\u7801\u5e76--build<\/code>\u5728\u8fd0\u884c\u65f6\u5fd8\u8bb0\u4f7f\u7528\u6807\u5fd7\u662f\u4e00\u4e2a\u975e\u5e38\u5e38\u89c1\u7684\u9677\u9631docker compose up<\/code>\u3002<\/p>\n<\/blockquote>\n
                    \u7531\u4e8e\u60a8\u7684\u8bbe\u7f6e\u73b0\u5728\u7531 Docker Compose \u8fd0\u884c\uff0c\u56e0\u6b64\u5b83\u5df2\u4e3a\u5176\u5206\u914d\u4e86\u4e00\u4e2a\u9879\u76ee\u540d\u79f0\uff0c\u56e0\u6b64\u60a8\u53ef\u4ee5\u4e3a CockroachDB \u5b9e\u4f8b\u83b7\u5f97\u4e00\u4e2a\u65b0\u5377\u3002\u8fd9\u610f\u5473\u7740\u60a8\u7684\u5e94\u7528\u7a0b\u5e8f\u5c06\u65e0\u6cd5\u8fde\u63a5\u5230\u6570\u636e\u5e93\uff0c\u56e0\u4e3a\u8be5\u65b0\u5377\u4e2d\u4e0d\u5b58\u5728\u8be5\u6570\u636e\u5e93\u3002\u7ec8\u7aef\u663e\u793a\u6570\u636e\u5e93\u9a8c\u8bc1\u9519\u8bef\uff1a<\/p>\n
                     <\/span>
                    \n <\/span> <\/p>\n
                    # ... omitted output ... <\/span><\/span>rest-server | 2021\/05\/10 00:54:25 failed to initialise the store: pq: password authentication failed for user totoro <\/span><\/span>roach | * <\/span><\/span>roach | * INFO: Replication was disabled for this cluster. <\/span><\/span>roach | * When\/if adding nodes in the future, update zone configurations to increase the replication factor. <\/span><\/span>roach | * <\/span><\/span>roach | CockroachDB node starting at 2021-05-10 00:54:26.398177 +0000 UTC (took 3.0s) <\/span><\/span>roach | build: CCL v20.1.15 @ 2021\/04\/26 16:11:58 (go1.13.9) <\/span><\/span>roach | webui: http:\/\/db:8080 <\/span><\/span>roach | sql: postgresql:\/\/root@db:26257?sslmode=disable <\/span><\/span>roach | RPC client flags: \/cockroach\/cockroach <client cmd> --host=db:26257 --insecure <\/span><\/span>roach | logs: \/cockroach\/cockroach-data\/logs <\/span><\/span>roach | temp dir: \/cockroach\/cockroach-data\/cockroach-temp349434348 <\/span><\/span>roach | external I\/O path: \/cockroach\/cockroach-data\/extern <\/span><\/span>roach | store[0]: path=\/cockroach\/cockroach-data <\/span><\/span>roach | storage engine: rocksdb <\/span><\/span>roach | status: initialized new cluster <\/span><\/span>roach | clusterID: b7b1cb93-558f-4058-b77e-8a4ddb329a88 <\/span><\/span>roach | nodeID: 1 <\/span><\/span>rest-server exited with code 0 <\/span><\/span>rest-server | 2021\/05\/10 00:54:25 failed to initialise the store: pq: password authentication failed for user totoro <\/span><\/span>rest-server | 2021\/05\/10 00:54:26 failed to initialise the store: pq: password authentication failed for user totoro <\/span><\/span>rest-server | 2021\/05\/10 00:54:29 failed to initialise the store: pq: password authentication failed for user totoro <\/span><\/span>rest-server | 2021\/05\/10 00:54:25 failed to initialise the store: pq: password authentication failed for user totoro <\/span><\/span>rest-server | 2021\/05\/10 00:54:26 failed to initialise the store: pq: password authentication failed for user totoro <\/span><\/span>rest-server | 2021\/05\/10 00:54:29 failed to initialise the store: pq: password authentication failed for user totoro <\/span><\/span>rest-server exited with code 1 <\/span><\/span># ... omitted output ...<\/span><\/span><\/code><\/pre>\n
                    \u7531\u4e8e\u60a8\u4f7f\u7528 \u8bbe\u7f6e\u90e8\u7f72\u7684\u65b9\u5f0frestart_policy<\/code>\uff0c\u5931\u8d25\u7684\u5bb9\u5668\u6bcf 20 \u79d2\u5c31\u4f1a\u91cd\u65b0\u542f\u52a8\u4e00\u6b21\u3002\u56e0\u6b64\uff0c\u4e3a\u4e86\u89e3\u51b3\u8be5\u95ee\u9898\uff0c\u60a8\u9700\u8981\u767b\u5f55\u6570\u636e\u5e93\u5f15\u64ce\u5e76\u521b\u5efa\u7528\u6237\u3002\u60a8\u4e4b\u524d\u5df2\u7ecf\u5728 \u4e2d\u5b8c\u6210\u4e86\u8be5\u64cd\u4f5c\u3002<\/p>\n
                    \u8fd9\u6ca1\u4ec0\u4e48\u5927\u4e0d\u4e86\u7684\u3002\u60a8\u6240\u8981\u505a\u7684\u5c31\u662f\u8fde\u63a5\u5230 CockroachDB \u5b9e\u4f8b\u5e76\u8fd0\u884c\u4e09\u4e2a SQL \u547d\u4ee4\u6765\u521b\u5efa\u6570\u636e\u5e93\u548c\u7528\u6237\uff0c\u5982 \u4e2d\u6240\u8ff0\u3002<\/p>\n
                    \u56e0\u6b64\uff0c\u4ece\u53e6\u4e00\u4e2a\u7ec8\u7aef\u767b\u5f55\u6570\u636e\u5e93\u5f15\u64ce\uff1a<\/p>\n
                     <\/span>
                    \n <\/span> <\/p>\n
                    $<\/span> docker exec<\/span> -it roach .\/cockroach sql --insecure <\/span><\/span><\/code><\/pre>\n
                    \u5e76\u8fd0\u884c\u4e0e\u4e4b\u524d\u76f8\u540c\u7684\u547d\u4ee4\u6765\u521b\u5efa\u6570\u636e\u5e93mydb<\/code>\u3001\u7528\u6237totoro<\/code>\uff0c\u5e76\u6388\u4e88\u8be5\u7528\u6237\u5fc5\u8981\u7684\u6743\u9650\u3002\u4e00\u65e6\u60a8\u6267\u884c\u6b64\u64cd\u4f5c\uff08\u5e76\u4e14\u793a\u4f8b\u5e94\u7528\u7a0b\u5e8f\u5bb9\u5668\u4f1a\u81ea\u52a8\u91cd\u65b0\u542f\u52a8\uff09\uff0crest-service<\/code>\u505c\u6b62\u5931\u8d25\u5e76\u91cd\u65b0\u542f\u52a8\u5e76\u4e14\u63a7\u5236\u53f0\u5c06\u53d8\u5f97\u5b89\u9759\u3002<\/p>\n
                    \u672c\u6765\u53ef\u4ee5\u8fde\u63a5\u60a8\u4e4b\u524d\u4f7f\u7528\u8fc7\u7684\u5377\uff0c\u4f46\u5c31\u672c\u793a\u4f8b\u800c\u8a00\uff0c\u9ebb\u70e6\u5927\u4e8e\u5176\u4ef7\u503c\uff0c\u800c\u4e14\u5b83\u8fd8\u63d0\u4f9b\u4e86\u4e00\u4e2a\u673a\u4f1a\u6765\u5c55\u793a\u5982\u4f55\u901a\u8fc7restart_policy<\/code>Compose \u6587\u4ef6\u529f\u80fd\u5c06\u5f39\u6027\u5f15\u5165\u60a8\u7684\u90e8\u7f72\u3002<\/p>\n
                    <\/h3>\n
                    \u73b0\u5728\uff0c\u6d4b\u8bd5\u60a8\u7684 API \u7aef\u70b9\u3002\u5728\u65b0\u7ec8\u7aef\u4e2d\uff0c\u8fd0\u884c\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n
                     <\/span>
                    \n <\/span> <\/p>\n
                    $<\/span> curl http:\/\/localhost\/ <\/span><\/span><\/code><\/pre>\n
                    \u60a8\u5e94\u8be5\u6536\u5230\u4ee5\u4e0b\u56de\u590d\uff1a<\/p>\n
                     <\/span>
                    \n <\/span> <\/p>\n
                    Hello,<\/span> Docker!<\/span> (<\/span>0<\/span>)<\/span><\/span><\/span><\/code><\/pre>\n
                    <\/h3>\n
                    \u8981\u505c\u6b62\u7531 Docker Compose \u542f\u52a8\u7684\u5bb9\u5668\uff0c\u8bf7ctrl+c<\/code>\u5728\u8fd0\u884c\u7684\u7ec8\u7aef\u4e2d\u6309docker compose up<\/code>\u3002\u8981\u5728\u505c\u6b62\u540e\u5220\u9664\u8fd9\u4e9b\u5bb9\u5668\uff0c\u8bf7\u8fd0\u884cdocker compose down<\/code>.<\/p>\n
                    <\/h3>\n
                    \u60a8\u53ef\u4ee5\u4f7f\u7528\u8be5\u6807\u5fd7\u5728\u5206\u79bb\u6a21\u5f0f\u4e0b\u8fd0\u884c\u7531\u8be5\u547d\u4ee4\u542f\u52a8\u7684\u5bb9\u5668\uff0c\u5c31\u50cf\u4f7f\u7528\u8be5\u547d\u4ee4docker compose<\/code>\u4e00\u6837\u3002docker<\/code>-d<\/code><\/p>\n
                    \u8981\u542f\u52a8\u7531 Compose \u6587\u4ef6\u5728\u5206\u79bb\u6a21\u5f0f\u4e0b\u5b9a\u4e49\u7684\u5806\u6808\uff0c\u8bf7\u8fd0\u884c\uff1a<\/p>\n
                     <\/span>
                    \n <\/span> <\/p>\n
                    $<\/span> docker compose up --build -d <\/span><\/span><\/code><\/pre>\n
                    \u7136\u540e\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528docker compose stop<\/code>\u6765\u505c\u6b62\u5bb9\u5668\u5e76docker compose down<\/code>\u5220\u9664\u5b83\u4eec\u3002<\/p>\n
                    <\/h2>\n
                    \u60a8\u53ef\u4ee5\u8fd0\u884cdocker compose<\/code>\u4ee5\u67e5\u770b\u8fd8\u6709\u54ea\u4e9b\u5176\u4ed6\u547d\u4ee4\u53ef\u7528\u3002<\/p>\n
                    <\/h2>\n
                    \u672c\u7ae0\u6545\u610f\u6ca1\u6709\u6db5\u76d6\u4e00\u4e9b\u79bb\u9898\u4f46\u6709\u8da3\u7684\u89c2\u70b9\u3002\u5bf9\u4e8e\u66f4\u5177\u5192\u9669\u7cbe\u795e\u7684\u8bfb\u8005\uff0c\u672c\u8282\u63d0\u4f9b\u4e86\u4e00\u4e9b\u8fdb\u4e00\u6b65\u5b66\u4e60\u7684\u6307\u5bfc\u3002<\/p>\n
                    <\/h3>\n
                    \u6258\u7ba1\u5377\u5e76\u4e0d\u662f\u4e3a\u5bb9\u5668\u63d0\u4f9b\u6301\u4e45\u5b58\u50a8\u7684\u552f\u4e00\u65b9\u6cd5\u3002\u5f3a\u70c8\u5efa\u8bae\u60a8\u719f\u6089\u53ef\u7528\u7684\u5b58\u50a8\u9009\u9879\u53ca\u5176\u7528\u4f8b\uff0c\u5728 \u4e2d\u8fdb\u884c\u4e86\u4ecb\u7ecd\u3002<\/p>\n
                    <\/h3>\n
                    \u60a8\u8fd0\u884c\u4e86 CockroachDB \u7684\u5355\u4e2a\u5b9e\u4f8b\uff0c\u8fd9\u5bf9\u4e8e\u672c\u793a\u4f8b\u6765\u8bf4\u5df2\u7ecf\u8db3\u591f\u4e86\u3002\u4f46\u662f\uff0c\u53ef\u4ee5\u8fd0\u884c\u4e00\u4e2a CockroachDB \u96c6\u7fa4\uff0c\u8be5\u96c6\u7fa4\u7531\u591a\u4e2a CockroachDB \u5b9e\u4f8b\u7ec4\u6210\uff0c\u6bcf\u4e2a\u5b9e\u4f8b\u90fd\u5728\u81ea\u5df1\u7684\u5bb9\u5668\u4e2d\u8fd0\u884c\u3002\u7531\u4e8e CockroachDB \u5f15\u64ce\u662f\u6309\u8bbe\u8ba1\u5206\u5e03\u5f0f\u7684\uff0c\u56e0\u6b64\u53ea\u9700\u5bf9\u7a0b\u5e8f\u8fdb\u884c\u5f88\u5c11\u7684\u66f4\u6539\u5373\u53ef\u8fd0\u884c\u5177\u6709\u591a\u4e2a\u8282\u70b9\u7684\u96c6\u7fa4\u3002<\/p>\n
                    \u8fd9\u79cd\u5206\u5e03\u5f0f\u8bbe\u7f6e\u63d0\u4f9b\u4e86\u6709\u8da3\u7684\u53ef\u80fd\u6027\uff0c\u4f8b\u5982\u5e94\u7528\u6df7\u6c8c\u5de5\u7a0b\u6280\u672f\u6765\u6a21\u62df\u96c6\u7fa4\u7684\u90e8\u5206\u6545\u969c\u5e76\u8bc4\u4f30\u5e94\u7528\u7a0b\u5e8f\u5e94\u5bf9\u6b64\u7c7b\u6545\u969c\u7684\u80fd\u529b\u3002<\/p>\n
                    \u5982\u679c\u60a8\u6709\u5174\u8da3\u5c1d\u8bd5 CockroachDB \u96c6\u7fa4\uff0c\u8bf7\u67e5\u770b\uff1a<\/p>\n
                      \n
                    • \u6587\u7ae0\uff1b\u548c<\/li>\n
                    • Docker Compose \u5173\u952e\u5b57 \u548c .<\/li>\n<\/ul>\n
                      <\/h3>\n
                      \u7531\u4e8e\u60a8\u6ca1\u6709\u8fd0\u884c CockroachDB \u5b9e\u4f8b\u96c6\u7fa4\uff0c\u60a8\u53ef\u80fd\u60f3\u77e5\u9053\u662f\u5426\u53ef\u4ee5\u4f7f\u7528\u975e\u5206\u5e03\u5f0f\u6570\u636e\u5e93\u5f15\u64ce\u3002\u7b54\u6848\u662f\u201c\u662f\u201d\uff0c\u5982\u679c\u60a8\u9009\u62e9\u66f4\u4f20\u7edf\u7684 SQL \u6570\u636e\u5e93\uff0c\u4f8b\u5982 \uff0c\u672c\u7ae0\u63cf\u8ff0\u7684\u8fc7\u7a0b\u5c06\u975e\u5e38\u76f8\u4f3c\u3002<\/p>\n
                      <\/h2>\n
                      \u5728\u672c\u6a21\u5757\u4e2d\uff0c\u60a8\u5c06\u8bbe\u7f6e\u4e00\u4e2a\u5bb9\u5668\u5316\u5f00\u53d1\u73af\u5883\uff0c\u5176\u4e2d\u60a8\u7684\u5e94\u7528\u7a0b\u5e8f\u548c\u6570\u636e\u5e93\u5f15\u64ce\u5728\u4e0d\u540c\u7684\u5bb9\u5668\u4e2d\u8fd0\u884c\u3002\u60a8\u8fd8\u7f16\u5199\u4e86\u4e00\u4e2a Docker Compose \u6587\u4ef6\uff0c\u5b83\u5c06\u4e24\u4e2a\u5bb9\u5668\u94fe\u63a5\u5728\u4e00\u8d77\uff0c\u5e76\u63d0\u4f9b\u4e86\u5f00\u53d1\u73af\u5883\u7684\u8f7b\u677e\u542f\u52a8\u548c\u62c6\u9664\u3002<\/p>\n
                      \u5728\u4e0b\u4e00\u4e2a\u6a21\u5757\u4e2d\uff0c\u60a8\u5c06\u4e86\u89e3\u5728 Docker \u4e2d\u8fd0\u884c\u529f\u80fd\u6d4b\u8bd5\u7684\u4e00\u79cd\u53ef\u80fd\u65b9\u6cd5\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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