{"id":253,"date":"2023-05-05T14:57:12","date_gmt":"2022-09-19T22:37:13","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/index.php\/2023\/11\/30\/istio%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b%e3%83%88%e3%83%a9%e3%83%95%e3%82%a3%e3%83%83%e3%82%af%e7%ae%a1%e7%90%86-%e8%a9%b3%e7%b4%b0%e3%82%ac%e3%82%a4%e3%83%89\/"},"modified":"2025-07-31T22:01:55","modified_gmt":"2025-07-31T13:01:55","slug":"istio%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b%e3%83%88%e3%83%a9%e3%83%95%e3%82%a3%e3%83%83%e3%82%af%e7%ae%a1%e7%90%86-%e8%a9%b3%e7%b4%b0%e3%82%ac%e3%82%a4%e3%83%89","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/istio%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b%e3%83%88%e3%83%a9%e3%83%95%e3%82%a3%e3%83%83%e3%82%af%e7%ae%a1%e7%90%86-%e8%a9%b3%e7%b4%b0%e3%82%ac%e3%82%a4%e3%83%89\/","title":{"rendered":"Istio\u306b\u304a\u3051\u308b\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u7ba1\u7406 – \u8a73\u7d30\u30ac\u30a4\u30c9"},"content":{"rendered":"

\u3053\u3093\u306b\u3061\u306f\u3001\u8aad\u8005\u306e\u7686\u3055\u3093\uff01\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u8a73\u3057\u3044\u8aac\u660e\u4ed8\u304d\u3067Istio\u306b\u304a\u3051\u308b\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u7ba1\u7406\u306e\u30ea\u30bd\u30fc\u30b9\u306b\u3064\u3044\u3066\u8a71\u3057\u307e\u3059\u3002<\/p>\n

\u305d\u308c\u3067\u306f\u3001\u59cb\u3081\u307e\u3057\u3087\u3046\uff01(Sore dewa, hajimemashou!)<\/p>\n

\u307e\u305f\u3001Kubernetes\u30af\u30e9\u30b9\u30bf\u30fc\u306bIstio\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u3082\u304a\u8aad\u307f\u304f\u3060\u3055\u3044\u3002<\/p>\n

\n

\u4ea4\u901a\u7ba1\u7406\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f (K\u014dts\u016b kanri to wa nan desu ka?)<\/h2>\n

\u4ea4\u901a\u7ba1\u7406\u306f\u3001\u30c7\u30fc\u30bf\u3084\u30d6\u30e9\u30a6\u30b8\u30f3\u30b0\u306e\u8ee2\u9001\u3001\u307e\u305f\u306fAPI\u547c\u3073\u51fa\u3057\u306e\u4e00\u74b0\u3068\u3057\u3066\u751f\u6210\u3055\u308c\u308b\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u7ba1\u7406\u3092\u6307\u3057\u307e\u3059\u3002<\/p>\n

\u30aa\u30f3\u30d7\u30ec\u30df\u30b9\u30b5\u30fc\u30d0\u30fc\u307e\u305f\u306f\u30af\u30e9\u30a6\u30c9\u4e0a\u306b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u8a2d\u5b9a\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u305d\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c\u7279\u5b9a\u306eAPI\u547c\u3073\u51fa\u3057\u3084\u4ed6\u306e\u7b2c\u4e09\u8005\u306e\u30b5\u30fc\u30d3\u30b9\u3078\u306e\u547c\u3073\u51fa\u3057\u3001\u307e\u305f\u306f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3092\u4ecb\u3057\u305f\u30c7\u30fc\u30bf\u8ee2\u9001\u3092\u8a66\u307f\u308b\u969b\u306b\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304c\u751f\u6210\u3055\u308c\u307e\u3059\u3002<\/p>\n

\u30c7\u30fc\u30bf\u306f\u3069\u3093\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u304a\u3044\u3066\u3082\u91cd\u8981\u3067\u304b\u3064\u8106\u5f31\u306a\u8981\u7d20\u3067\u3042\u308a\u3001\u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u306f\u305d\u306e\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u306e\u6839\u5e79\u3067\u3059\u3002 \u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u78ba\u4fdd\u3057\u305f\u4e0a\u3067\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u76e3\u8996\u3059\u308b\u3053\u3068\u306f\u5fc5\u8981\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u540c\u3058\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\/\u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u4e0a\u3067\u30b5\u30fc\u30d3\u30b9\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u7ba1\u7406\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n

\u6b21\u306b\u9032\u307f\u307e\u3059\u3068\u3001\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u7ba1\u7406\u30c4\u30fc\u30eb\u3068\u3057\u3066Istio\u3092\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n

\n

Istio\u306f\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u7ba1\u7406\u30c4\u30fc\u30eb\u3068\u3057\u3066\u306e\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002<\/h2>\n

Istio\u306f\u3001\u63d0\u4f9b\u3055\u308c\u308b\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30eb\u30fc\u30eb\u306b\u3088\u3063\u3066\u3001\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u7ba1\u7406\u65b9\u6cd5\u3092\u79c1\u305f\u3061\u306b\u7d39\u4ecb\u3057\u307e\u3059\u3002\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306f\u969c\u5bb3\u306b\u5bfe\u3057\u3066\u3088\u308a\u5f37\u3044\u8010\u4e45\u6027\u3092\u6301\u3061\u307e\u3059\u3002\u306a\u305c\u306a\u3089\u3070\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u7d4c\u7531\u3067\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u884c\u304d\u6765\u3059\u308b\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u3059\u3079\u3066\u304c\u76e3\u8996\u3055\u308c\u308b\u304b\u3089\u3067\u3059\u3002<\/p>\n

Istio\u306f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30b3\u30f3\u30c6\u30ca\u306b\u30b5\u30a4\u30c9\u30ab\u30fc\u3068\u3057\u3066Envoy\u30d7\u30ed\u30ad\u30b7\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002API\u547c\u3073\u51fa\u3057\u3084\u30b5\u30fc\u30d3\u30b9\u306e\u53c2\u52a0\u306a\u3069\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30dd\u30c3\u30c9\u3078\u306e\u51fa\u5165\u308a\u3059\u308b\u3059\u3079\u3066\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u76e3\u8996\u3057\u307e\u3059\u3002<\/p>\n

\u3053\u308c\u306b\u3088\u308a\u3001\u57fa\u790e\u3068\u306a\u308b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30b5\u30fc\u30d3\u30b9\u306f\u5f71\u97ff\u3092\u53d7\u3051\u305a\u3001\u5168\u4f53\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u76e3\u8996\u306f\u8010\u969c\u5bb3\u6027\u3068\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u7ba1\u7406\u306e\u305f\u3081\u306bEnvoy\u30b5\u30a4\u30c9\u30ab\u30fc\u3092\u4ecb\u3057\u3066\u30d7\u30ed\u30ad\u30b7\u3055\u308c\u307e\u3059\u3002<\/p>\n

    \n
  1. \n
      Istio\u306f\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u76e3\u8996\u3059\u308b\u305f\u3081\u306b\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u3092\u7406\u89e3\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u30b5\u30fc\u30d3\u30b9\u30c7\u30a3\u30b9\u30ab\u30d0\u30ea\u30fc\u30b7\u30b9\u30c6\u30e0\u306b\u5185\u90e8\u7684\u306b\u63a5\u7d9a\u3057\u3066\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30b5\u30fc\u30d3\u30b9\u3068\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u3092\u8a8d\u8b58\u3057\u307e\u3059\u3002<\/ol>\n<\/li>\n<\/ol>\n

       <\/p>\n

        \n
      1. \n
          \u305d\u306e\u305f\u3081\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u547c\u3073\u51fa\u3057\u304c\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u5230\u9054\u3059\u308b\u3068\u3001\u307e\u305aEnvoy\u30d7\u30ed\u30ad\u30b7\u3092\u7d4c\u7531\u3057\u3066\u6700\u7d42\u7684\u306b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30a8\u30f3\u30c9\u30b5\u30fc\u30d3\u30b9\u306b\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3055\u308c\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u30b5\u30a4\u30c9\u30ab\u30fc\u306f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u5b8c\u5168\u306b\u51e6\u7406\u3057\u3001\u76e3\u8996\u3057\u307e\u3059\u3002<\/ol>\n<\/li>\n<\/ol>\n

           <\/p>\n

            Istio\u306f\u3001\u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u5185\u306b\u8a2d\u5b9a\u3055\u308c\u305f\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b5\u30fc\u9593\u3067\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u8ee2\u9001\u307e\u305f\u306f\u5206\u6563\u3059\u308b\u305f\u3081\u306b\u3001\u30e9\u30a6\u30f3\u30c9\u30ed\u30d3\u30f3\u30e2\u30c7\u30eb\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/ol>\n
            \n

            \u30a4\u30b9\u30c6\u30a3\u30aa\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u7ba1\u7406\u30ea\u30bd\u30fc\u30b9<\/h2>\n

            \u30a4\u30b9\u30c8\u30a4\u30aa\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u7ba1\u7406\u30c4\u30fc\u30eb\u306e\u4f5c\u696d\u304c\u7406\u89e3\u3067\u304d\u305f\u3089\u3001\u30a4\u30b9\u30c8\u30a4\u30aa\u306b\u3088\u3063\u3066\u8a2d\u5b9a\u3055\u308c\u305f\u30ea\u30bd\u30fc\u30b9\u3092\u63a2\u7d22\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n

            1. \u30d0\u30fc\u30c1\u30e3\u30eb\u30b5\u30fc\u30d3\u30b9<\/h3>\n

            \u4eee\u60f3\u30b5\u30fc\u30d3\u30b9\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u79c1\u305f\u3061\u306f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b5\u30fc\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u969b\u306b\u5f79\u7acb\u3064\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30eb\u30fc\u30eb\u3092\u5b9a\u7fa9\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u79c1\u305f\u3061\u306f\u30eb\u30fc\u30eb\u3068\u305d\u308c\u306b\u5bfe\u5fdc\u3059\u308b\u30a8\u30f3\u30c9\u30b5\u30fc\u30d3\u30b9\u306e\u30de\u30c3\u30c1\u30f3\u30b0\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002\u3082\u3057\u30eb\u30fc\u30eb\u304c\u6761\u4ef6\u306b\u4e00\u81f4\u3059\u308b\u5834\u5408\u3001\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306f\u30a8\u30f3\u30c9\u30b5\u30fc\u30d3\u30b9\u306b\u8ee2\u9001\u3055\u308c\u307e\u3059\u3002<\/p>\n

            \u4eee\u60f3\u30b5\u30fc\u30d3\u30b9\u306b\u3088\u308a\u3001\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u8ca0\u8377\u3092\u5bb9\u6613\u306b\u7ba1\u7406\u3067\u304d\u307e\u3059\u3002\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30eb\u30fc\u30eb\u306b\u3088\u3063\u3066\u3001\u30b5\u30fc\u30d3\u30b9\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u5207\u308a\u96e2\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u540c\u3058\u4eee\u60f3\u30b5\u30fc\u30d3\u30b9\u8a2d\u5b9a\u5185\u3067\u3001\u8907\u6570\u306e\u30db\u30b9\u30c8\u540d\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u52d5\u4f5c\u3092\u6307\u5b9a\u304a\u3088\u3073\u7dad\u6301\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

            \u4ee5\u4e0b\u306e\u4eee\u60f3\u30b5\u30fc\u30d3\u30b9\u306e\u8a2d\u5b9a\u4f8b\u3092\u7406\u89e3\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n

            apiVersion<\/span>:<\/span> networking.istio.io\/v1alpha3\r\nkind<\/span>:<\/span> VirtualService\r\nmetadata<\/span>:<\/span>\r\n  name<\/span>:<\/span> demo-<\/span>vs\r\nspec<\/span>:<\/span>\r\n  hosts<\/span>:<\/span>\r\n  -<\/span> demo.vs.com\r\n  http<\/span>:<\/span>\r\n  -<\/span> match<\/span>:<\/span>\r\n    -<\/span> headers<\/span>:<\/span>\r\n        end-user<\/span>:<\/span>\r\n          exact<\/span>:<\/span> \/api\r\n    route<\/span>:<\/span>\r\n    -<\/span> destination<\/span>:<\/span>\r\n        host<\/span>:<\/span> \/\r\n<\/code><\/pre>\n
            \u8aac\u660e<\/p>\n
              \n
            • The hosts entry includes the domain or CNAME of the application.<\/li>\n
            • We then cascade down through the http routing and configure the matching backend service to a particular host\/destination.<\/li>\n
            • Under the match section comes the backend service configuration that will be invoked as soon as the host entry matches.<\/li>\n
            • The http section includes the routing rules that are redirected to the destination.<\/li>\n
            • As soon as the web traffic\/request hits the Istio gateway, it looks for the entry of it\u2019s CNAME\/FQDN. Upon successful match, it then moves the traffic to the virtual service which routes it to the particular destination k8 service.<\/li>\n<\/ul>\n
              \n
              \u30b2\u30fc\u30c8\u30a6\u30a7\u30a4<\/h3>\n
              Gateway\u306b\u3088\u3063\u3066\u3001\u30b0\u30ed\u30fc\u30d0\u30eb\uff08\u30a8\u30f3\u30dc\u30a4\uff09\u30ec\u30d9\u30eb\u3067\u306e\u9001\u53d7\u4fe1\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u5236\u5fa1\u3068\u76e3\u8996\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002Istio\u30b5\u30fc\u30d3\u30b9\u30e1\u30c3\u30b7\u30e5\u306b\u5165\u308b\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\uff08\u30d7\u30ed\u30c8\u30b3\u30eb\/\u30eb\u30fc\u30eb\uff09\u306e\u7a2e\u985e\u3084\u5b9b\u5148\u3078\u306e\u3055\u3089\u306a\u308b\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
              \u305d\u308c\u3067\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306eURL\u304c\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b5\u30fc\u306b\u5230\u9054\u3059\u308b\u3068\u3001\u7b49\u4fa1\u306e\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u3092\u691c\u7d22\u3057\u307e\u3059\u3002\u30a8\u30f3\u30c8\u30ea\u30fc\u304c\u898b\u3064\u304b\u308b\u3068\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30db\u30b9\u30c8\u3092\u30e1\u30c3\u30b7\u30e5\u306b\u5165\u308c\u308b\u3053\u3068\u3092\u8a31\u53ef\u3057\u307e\u3059\u3002<\/p>\n
              \u4ee5\u4e0b\u306e\u4f8b\u3092\u901a\u3057\u3066\u3001\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u306e\u50cd\u304d\u3092\u7406\u89e3\u3057\u3088\u3046\u3068\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n
              apiVersion<\/span>:<\/span> networking.istio.io\/v1alpha3\r\nkind<\/span>:<\/span> Gateway\r\nmetadata<\/span>:<\/span>\r\n  name<\/span>:<\/span> demo-<\/span>gtwy\r\nspec<\/span>:<\/span>\r\n  selector<\/span>:<\/span>\r\n    app<\/span>:<\/span> demo\r\n  servers<\/span>:<\/span>\r\n  -<\/span> port<\/span>:<\/span>\r\n      number<\/span>:<\/span> 443<\/span>\r\n      name<\/span>:<\/span> https\r\n      protocol<\/span>:<\/span> HTTPS\r\n    hosts<\/span>:<\/span>\r\n    -<\/span> demo.vs.com\r\n    tls<\/span>:<\/span>\r\n      mode<\/span>:<\/span> SIMPLE\r\n      credentialName<\/span>:<\/span> demo-<\/span>tls-<\/span>cert\r\n\r\n<\/code><\/pre>\n
              \u8aac\u660e\uff1a<\/p>\n
                \n
              • As soon as the web traffic hits the load balancer, it gets routed to the Istio gateway. The gateway enables the traffic to enter the service mesh over the mention port (443 in this case).<\/li>\n
              • But, no traffic routing to the backend service happens in this stage.<\/li>\n
              • The gateway looks for the credibility of the CNAME through the TLS secret (credential).<\/li>\n
              • Once the gateway confirms and allows the traffic from the host in, the virtual service takes the lead and does the routing to the destination service.<\/li>\n<\/ul>\n
                \n
                3. \u30b5\u30a4\u30c9\u30ab\u30fc<\/h3>\n
                \u30b5\u30a4\u30c9\u30ab\u30fc\u30ba\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001Envoy\u30d7\u30ed\u30ad\u30b7\u306b\u5230\u9054\u3059\u308b\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u5236\u9650\u304a\u3088\u3073\u7ba1\u7406\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4e00\u822c\u7684\u306b\u3001Istio\u306f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u306b\u95a2\u9023\u3059\u308b\u30dd\u30fc\u30c8\u3067\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u53d7\u3051\u5165\u308c\u308bEnvoy\u30d7\u30ed\u30ad\u30b7\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u30b5\u30a4\u30c9\u30ab\u30fc\u306e\u914d\u7f6e\u306b\u306f\u4ee5\u4e0b\u306e\u5229\u70b9\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n
                – \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u5236\u9650\u3068\u7ba1\u7406\u304c\u53ef\u80fd
                \n– \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u306b\u95a2\u9023\u3059\u308b\u30dd\u30fc\u30c8\u3067\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u53d7\u3051\u5165\u308c\u308bEnvoy\u30d7\u30ed\u30ad\u30b7\u306e\u8a2d\u5b9a<\/p>\n
                  \n
                • We can filter and manage the protocols and ports that the Envoy should accept.<\/li>\n
                • We can also filter and restrict the Envoy proxy from reaching or forwarding traffic to certain set of services.<\/li>\n
                • It can allow\/restrict traffic to the services within different namespaces.<\/li>\n<\/ul>\n
                  \u3067\u306f\u3001\u4ee5\u4e0b\u306e\u4f8b\u3092\u4f7f\u3063\u3066\u3001\u30b5\u30a4\u30c9\u30ab\u30fc\u306e\u6982\u5ff5\u3092\u7406\u89e3\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n
                  apiVersion<\/span>:<\/span> networking.istio.io\/v1alpha3\r\nkind<\/span>:<\/span> Sidecar\r\nmetadata<\/span>:<\/span>\r\n  name<\/span>:<\/span> default\r\n  namespace<\/span>:<\/span> default\r\nspec<\/span>:<\/span>\r\n  egress<\/span>:<\/span>\r\n  -<\/span> hosts<\/span>:<\/span>\r\n    -<\/span> \".\/*\"<\/span>\r\n    -<\/span> \"bookinfo\/*\"<\/span>\r\n\r\n<\/code><\/pre>\n
                  \u8aac\u660e: \u65e5\u672c\u8a9e\u3067\u306e\u81ea\u7136\u306a\u30d1\u30e9\u30d5\u30ec\u30fc\u30ba\u304c\u5fc5\u8981\u3067\u3059\u30021\u3064\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u3067\u7d50\u69cb\u3067\u3059\u3002<\/p>\n
                    \n
                  • With the above configuration, it applies a sidecar configuration to the default namespace.<\/li>\n
                  • This configuration allows the external\/egress traffic to reach to the backend services of default and bookinfo namespaces only.<\/li>\n
                  • With this, it restricts the traffic routing\/accessibility to other namespaces.<\/li>\n<\/ul>\n
                    \n
                    \u7d50\u8ad6\u306f\u3001\uff11\u3064\u306e\u9078\u629e\u80a2\u3067\u65e5\u672c\u8a9e\u3067\u66f8\u304d\u76f4\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/h2>\n
                    \u3053\u308c\u306b\u3088\u3063\u3066\u3001\u79c1\u305f\u3061\u306f\u3053\u306e\u30c8\u30d4\u30c3\u30af\u306e\u7d42\u308f\u308a\u306b\u8fd1\u3065\u304d\u307e\u3057\u305f\u3002\u3082\u3057\u8cea\u554f\u304c\u3042\u308c\u3070\u3001\u3069\u3046\u305e\u4ee5\u4e0b\u306b\u30b3\u30e1\u30f3\u30c8\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
                    Kubernetes\u306b\u95a2\u9023\u3059\u308b\u3088\u308a\u591a\u304f\u306e\u6295\u7a3f\u3092\u3054\u89a7\u3044\u305f\u3060\u304f\u306b\u306f\u3001\u305c\u3072\u304a\u5f85\u3061\u304f\u3060\u3055\u3044\u3002<\/p>\n
                    \u305d\u308c\u307e\u3067\u3001\u697d\u3057\u3044\u5b66\u3073\u3092\uff01 \ud83d\ude42<\/p>\n","protected":false},"excerpt":{"rendered":"
                    \u3053\u3093\u306b\u3061\u306f\u3001\u8aad\u8005\u306e\u7686\u3055\u3093\uff01\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u8a73\u3057\u3044\u8aac\u660e\u4ed8\u304d\u3067Istio\u306b\u304a\u3051\u308b\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u7ba1\u7406\u306e\u30ea\u30bd\u30fc\u30b9\u306b\u3064\u3044\u3066\u8a71\u3057\u307e\u3059\u3002 \u305d\u308c\u3067\u306f\u3001\u59cb\u3081\u307e\u3057\u3087\u3046\uff01(Sore dewa, hajimemashou!) \u307e\u305f\u3001Kubernet […]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[26,61],"class_list":["post-253","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-26","tag-61"],"yoast_head":"\nIstio\u306b\u304a\u3051\u308b\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u7ba1\u7406 - \u8a73\u7d30\u30ac\u30a4\u30c9 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Istio\u306b\u304a\u3051\u308b\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u7ba1\u7406 - 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