{"id":21330,"date":"2025-10-29T02:40:16","date_gmt":"2025-10-29T02:40:16","guid":{"rendered":"https:\/\/pokecon.jp\/job\/?p=21330"},"modified":"2025-10-29T02:40:16","modified_gmt":"2025-10-29T02:40:16","slug":"grpc%e3%81%ae%e3%82%af%e3%83%a9%e3%82%a4%e3%82%a2%e3%83%b3%e3%83%88%e3%82%b5%e3%82%a4%e3%83%89%e3%83%ad%e3%83%bc%e3%83%89%e3%83%90%e3%83%a9%e3%83%b3%e3%82%b7%e3%83%b3%e3%82%b0%e3%81%a7%e3%82%b5","status":"publish","type":"post","link":"https:\/\/pokecon.jp\/job\/21330\/","title":{"rendered":"gRPC\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30b5\u30a4\u30c9\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b7\u30f3\u30b0\u3067\u30b5\u30fc\u30d0\u8ca0\u8377\u306e\u504f\u308a\u3092\u8efd\u6e1b\u3059\u308b &#8211; Cybozu Inside Out"},"content":{"rendered":"\n<\/p>\n<div>\n<p>\u3053\u306e\u8a18\u4e8b\u306f\u3001<a target=\"_blank\" href=\"https:\/\/cybozu.github.io\/summer-blog-fes-2025\/\">CYBOZU SUMMER BLOG FES &#8217;25<\/a>\u306e\u8a18\u4e8b\u3067\u3059\u3002<\/p>\n<p><span itemscope=\"\" itemtype=\"http:\/\/schema.org\/Photograph\"><img decoding=\"async\" src=\"https:\/\/cdn-ak.f.st-hatena.com\/images\/fotolife\/c\/cybozuinsideout\/20251029\/20251029113004.png\" width=\"800\" height=\"421\" loading=\"lazy\" title=\"\" class=\"hatena-fotolife\" itemprop=\"image\"\/><\/span><\/p>\n<p>CloudPlatform\u90e8\u306e<a target=\"_blank\" href=\"https:\/\/github.com\/pddg\">pddg<\/a>\u3067\u3059\u3002gRPC\u306f\u9ad8\u6027\u80fd\u30fb\u9ad8\u6a5f\u80fd\u306aRPC\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u3042\u308a\u3001\u30b5\u30a4\u30dc\u30a6\u30ba\u3067\u306f\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u30b5\u30fc\u30d3\u30b9\u9593\u3067\u306e\u901a\u4fe1\u306b\u5e83\u304f\u5229\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002gRPC\u306e\u5b9f\u969b\u306e\u901a\u4fe1\u306fChannel\u3068\u3044\u3046\u4ed5\u7d44\u307f\u306b\u3088\u3063\u3066\u62bd\u8c61\u5316\u3055\u308c\u3066\u7ba1\u7406\u3055\u308c\u3066\u304a\u308a\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306f\u6700\u521d\u306b\u63a5\u7d9a\u3057\u305f\u5358\u4e00\u306e\u30b5\u30fc\u30d0\u306e\u307f\u3068\u901a\u4fe1\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u5c11\u6570\u306e\u9ad8\u8ca0\u8377\u3092\u304b\u3051\u308b\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u5b58\u5728\u3059\u308b\u3068\u3001\u305d\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u63a5\u7d9a\u3057\u305f\u30b5\u30fc\u30d0\u306b\u8ca0\u8377\u304c\u96c6\u4e2d\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<p>gRPC\u306f\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u3067\u63a5\u7d9a\u3059\u308b\u30b5\u30fc\u30d0\u3092\u9078\u629e\u3059\u308b\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b7\u30f3\u30b0\u6a5f\u80fd\u3092\u5099\u3048\u3066\u304a\u308a\u3001\u3053\u308c\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u8ca0\u8377\u306e\u504f\u308a\u3092\u8efd\u6e1b\u3067\u304d\u307e\u3059\u3002\u672c\u8a18\u4e8b\u3067\u306f\u3001gRPC\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30b5\u30a4\u30c9\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b7\u30f3\u30b0\u306e\u5c0e\u5165\u65b9\u6cd5\u3084\u6ce8\u610f\u70b9\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<br \/>\n\u8aac\u660e\u306b\u306fgRPC-Go\u3092\u7528\u3044\u307e\u3059\u304c\u3001\u4ed6\u306e\u8a00\u8a9e\u306egRPC\u5b9f\u88c5\u3067\u3082\u540c\u69d8\u306e\u6a5f\u80fd\u304c\u63d0\u4f9b\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2 id=\"\u80cc\u666f\">\u80cc\u666f<\/h2>\n<p>gRPC\u306f\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3068\u30b5\u30fc\u30d0\u306e\u901a\u4fe1\u3092Channel\u3068\u3044\u3046\u4ed5\u7d44\u307f\u3067\u62bd\u8c61\u5316\u3057\u3066\u3044\u307e\u3059<a target=\"_blank\" href=\"#f-ee77abdb\" id=\"fn-ee77abdb\" name=\"fn-ee77abdb\" title=\"https:\/\/christina04.hatenablog.com\/entry\/grpc-channel\">*1<\/a>\u3002\u901a\u5e38\u3001gRPC\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3092\u4f5c\u6210\u3059\u308b\u969b\u3001\u63a5\u7d9a\u5148\u306e\u30a2\u30c9\u30ec\u30b9\u3092\u6e21\u3059\u3068\uff08\u5fc5\u8981\u306a\u3089\u3070\u540d\u524d\u89e3\u6c7a\u3057\u3066\uff09\u305d\u306e\u30a2\u30c9\u30ec\u30b9\u4e00\u3064\u306b\u5bfe\u3057\u3066Channel\u3092\u4f5c\u6210\u3057\u3066\u63a5\u7d9a\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u3068\u304d\u3001\u4e00\u5ea6\u4f5c\u6210\u3055\u308c\u305fTCP\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306f\u5207\u65ad\u3055\u308c\u308b\u307e\u3067\u7dad\u6301\u3055\u308c\u307e\u3059\u3002\u3064\u307e\u308a\u3001gRPC\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f\u5358\u4e00\u306e\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u306b\u5bfe\u3057\u3066\u4e00\u5ea6\u63a5\u7d9a\u3057\u3001\u305d\u306e\u63a5\u7d9a\u304c\u5207\u65ad\u3055\u308c\u308b\u307e\u3067\u4e00\u3064\u306eChannel\u3092\u4f7f\u3044\u7d9a\u3051\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u306b\u3088\u308a\uff08gRPC\u306e\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b7\u30f3\u30b0\u306b\u5bfe\u5fdc\u3057\u305fL7\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b5\u3092\u5b9f\u969b\u306b\u7528\u610f\u3057\u305f\u308a\u3057\u306a\u3044\u9650\u308a\uff09\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u306egRPC\u30b5\u30fc\u30d0\u3092\u4f55\u53f0\u7528\u610f\u3057\u3066\u3082\u3001\u3042\u308bgRPC\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u767a\u884c\u3059\u308bRPC\u306f\u5358\u4e00\u306e\u30b5\u30fc\u30d0\u306b\u96c6\u4e2d\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<p>\u30b5\u30a4\u30dc\u30a6\u30ba\u3067\u306fgRPC\u3067\u901a\u4fe1\u3059\u308b\u30b5\u30fc\u30d3\u30b9\u9593\u306b\u30b5\u30fc\u30d3\u30b9\u30e1\u30c3\u30b7\u30e5\u306a\u3069\u306f\u5c0e\u5165\u3057\u3066\u304a\u3089\u305a\u3001\u73fe\u72b6\u7d20\u306egRPC\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3068gRPC\u30b5\u30fc\u30d0\u304c\u76f4\u63a5\u901a\u4fe1\u3059\u308b\u30b1\u30fc\u30b9\u304c\u307b\u3068\u3093\u3069\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u591a\u6570\u306eRPC\u3092\u884c\u3046\u5c11\u6570\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u5b58\u5728\u3059\u308b\u5834\u5408\u306b\u3001gRPC\u30b5\u30fc\u30d0\u306e\u8ca0\u8377\u304cPod\u3054\u3068\u306b\u5927\u304d\u304f\u504f\u308a\u300199\u30d1\u30fc\u30bb\u30f3\u30bf\u30a4\u30eb\u306e\u30ec\u30a4\u30c6\u30f3\u30b7\u304c\u60aa\u5316\u3059\u308b\u306a\u3069\u306e\u554f\u984c\u304c\u767a\u751f\u3057\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n<h2 id=\"gRPC\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30b5\u30a4\u30c9\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b7\u30f3\u30b0\">gRPC\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30b5\u30a4\u30c9\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b7\u30f3\u30b0<\/h2>\n<p>\u901a\u5e38\u3001Web\u30b5\u30fc\u30d0\u3078\u306e\u8ca0\u8377\u5206\u6563\u306f\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u3067\u306f\u306a\u304f\u30b5\u30fc\u30d0\u5074\u3067\u884c\u308f\u308c\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3057\u3087\u3046\u3002L4 \u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b5\uff08TCP\u30ec\u30d9\u30eb\u306e\u5206\u6563\uff09\u3001L7 \u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b5\uff08HTTP\u30ec\u30d9\u30eb\u306e\u5206\u6563\uff09\u306a\u3069\u304c\u7528\u3044\u3089\u308c\u307e\u3059\u3002Kubernetes\u306eService\u30ea\u30bd\u30fc\u30b9\u3092\u7528\u3044\u3066\u8907\u6570\u306ePod\u306b\u8ca0\u8377\u5206\u6563\u3059\u308b\u306e\u306fL4\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b5\u306e\u4e00\u7a2e\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u3002\u66f4\u306b\u305d\u3053\u304b\u3089Nginx\u3084Envoy\u306a\u3069\u306eL7\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b5\u3092\u7528\u3044\u308b\u3053\u3068\u3067\u3001\u30db\u30b9\u30c8\u540d\u30fbHTTP\u306e\u30d1\u30b9\u306a\u3069\u306b\u57fa\u3065\u3044\u3066\u3088\u308a\u7d30\u304b\u3044\u8ca0\u8377\u5206\u6563\u3084\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u306b\u5bfe\u3057\u3066\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u304c\u8907\u6570\u3042\u308b\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u3092\u8b58\u5225\u3057\u3066\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u51fa\u3057\u5206\u3051\u308b\u65b9\u5f0f\u3092\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30b5\u30a4\u30c9\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b7\u30f3\u30b0\u3068\u547c\u3073\u307e\u3059\u3002gRPC\u306b\u304a\u3044\u3066\u306f\u3001DNS\u306b\u3088\u308b\u540d\u524d\u89e3\u6c7a\u6642\u306b\u5f97\u3089\u308c\u305f\u8907\u6570\u306e\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u306e\u30a2\u30c9\u30ec\u30b9\u306b\u3064\u3044\u3066\u30e9\u30a6\u30f3\u30c9\u30ed\u30d3\u30f3\u65b9\u5f0f\u3067\u63a5\u7d9a\u3059\u308b\u65b9\u6cd5\u304c\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>gRPC\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f\u6307\u5b9a\u3055\u308c\u305fFQDN\u306e\u540d\u524d\u89e3\u6c7a\u3092\u884c\u3044\u3001\u5f97\u3089\u308c\u305f\u30a2\u30c9\u30ec\u30b9\u3059\u3079\u3066\u306b\u5bfe\u3057\u3066Channel\u3092\u4f5c\u6210\u3057\u307e\u3059<a target=\"_blank\" href=\"#f-0a2ed85d\" id=\"fn-0a2ed85d\" name=\"fn-0a2ed85d\" title=\"\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306f\u8907\u6570\u306e\u30a2\u30c9\u30ec\u30b9\u304c\u5f97\u3089\u308c\u305f\u5834\u5408\u3001\u305d\u306e\u3046\u3061\u306e\u6700\u521d\u306e\u30a2\u30c9\u30ec\u30b9\u306e\u307f\u306b\u5bfe\u3057\u3066Channel\u3092\u4f5c\u6210\u3057\u3066\u63a5\u7d9a\u3057\u307e\u3059\u3002\">*2<\/a>\u3002\u3053\u308c\u306f\u5b9f\u969b\u306b\u306f\u6307\u5b9a\u3057\u305fFQDN\u306b\u5bfe\u3059\u308bChannel\u306b\u7d10\u4ed8\u304f\u8907\u6570\u306eSubchannel\u3068\u3044\u3046\u5f62\u306b\u306a\u308a\u307e\u3059\u3002\u500b\u5225\u306eRPC\u3092\u884c\u3046\u969b\u306b\u305d\u308c\u3089\u306eSubchannel\u3092\u30e9\u30a6\u30f3\u30c9\u30ed\u30d3\u30f3\u3067\u9078\u629e\u3057\u3066\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u8907\u6570\u306e\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u306b\u5bfe\u3057\u3066\u8ca0\u8377\u5206\u6563\u304c\u884c\u308f\u308c\u307e\u3059\u3002<\/p>\n<p><span itemscope=\"\" itemtype=\"http:\/\/schema.org\/Photograph\"><img decoding=\"async\" src=\"https:\/\/cdn-ak.f.st-hatena.com\/images\/fotolife\/c\/cybozuinsideout\/20251029\/20251029113017.png\" width=\"778\" height=\"486\" loading=\"lazy\" title=\"\" class=\"hatena-fotolife\" itemprop=\"image\"\/><\/span><\/p>\n<p>\u3053\u306e\u6a5f\u80fd\u3092\u6709\u52b9\u5316\u3059\u308b\u305f\u3081\u306b\u306f\u3001gRPC\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u5bfe\u3057\u3066\u4ee5\u4e0b\u306e2\u3064\u306e\u8a2d\u5b9a\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<ol>\n<li>\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b7\u30f3\u30b0\u30dd\u30ea\u30b7\u30fc\u306e\u8a2d\u5b9a<\/li>\n<li>\u30ea\u30be\u30eb\u30d0\u30fc\u306e\u8a2d\u5b9a<\/li>\n<\/ol>\n<h3 id=\"\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b7\u30f3\u30b0\u30dd\u30ea\u30b7\u30fc\u306e\u8a2d\u5b9a\">\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b7\u30f3\u30b0\u30dd\u30ea\u30b7\u30fc\u306e\u8a2d\u5b9a<\/h3>\n<p>\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b7\u30f3\u30b0\u30dd\u30ea\u30b7\u30fc\u306f <code>pick_first<\/code> \u3067\u3059\u3002\u3053\u308c\u306f\u8907\u6570\u306e\u30a2\u30c9\u30ec\u30b9\u304c\u8fd4\u3055\u308c\u3066\u3082\u3001\u6700\u521d\u306e\u4e00\u3064\u306b\u306e\u307f\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9001\u4fe1\u3059\u308b\u3068\u3044\u3046\u30dd\u30ea\u30b7\u30fc\u3067\u3059\u3002\u3053\u308c\u3092 <code>round_robin<\/code> \u306b\u5909\u66f4\u3059\u308b\u3053\u3068\u3067\u3001\u8907\u6570\u306e\u30a2\u30c9\u30ec\u30b9\u306b\u5bfe\u3057\u3066\u30e9\u30a6\u30f3\u30c9\u30ed\u30d3\u30f3\u65b9\u5f0f\u3067\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u5206\u6563\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u8a2d\u5b9a\u306fgRPC\u306e<a target=\"_blank\" href=\"https:\/\/grpc.io\/docs\/guides\/service-config\/\">Service Config<\/a>\u3068\u3044\u3046\u4ed5\u7d44\u307f\u3067\u8a2d\u5b9a\u3067\u304d\u3001\u4ee5\u4e0b\u306e\u3044\u305a\u308c\u304b\u306e\u65b9\u6cd5\u3067\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li>DNS\u306eTXT\u30ec\u30b3\u30fc\u30c9\u3067\u6307\u5b9a\u3059\u308b\n<\/li>\n<li>gRPC\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u30b3\u30fc\u30c9\u3067\u76f4\u63a5\u6307\u5b9a\u3059\u308b\n<ul>\n<li><a target=\"_blank\" href=\"https:\/\/pkg.go.dev\/google.golang.org\/grpc#WithDefaultServiceConfig\">grpc.WithDefaultServiceConfig<\/a> \u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u5229\u7528\u3059\u308b<\/li>\n<li>\u3053\u306e\u65b9\u6cd5\u306f\u8a2d\u5b9a\u3092\u6587\u5b57\u5217\u3068\u3057\u3066\u6307\u5b9a\u3059\u308b\u305f\u3081\u3001\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306b\u305d\u306e\u6b63\u3057\u3055\u3092\u691c\u8a3c\u3067\u304d\u306a\u3044\u70b9\u306b\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/li>\n<li>\n<pre><code class=\"go\">client, err := grpc.NewClient(addr,\n    \/\/ \u30c7\u30d5\u30a9\u30eb\u30c8\u306fpick_first\u306a\u306e\u3067round_robin\u306b\u5909\u66f4\u3059\u308b\n    grpc.WithDefaultServiceConfig(`{\"loadBalancingConfig\": [{\"round_robin\":{}}]}`),\n)\n<\/code><\/pre>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3 id=\"\u30ea\u30be\u30eb\u30d0\u30fc\u306e\u8a2d\u5b9a\">\u30ea\u30be\u30eb\u30d0\u30fc\u306e\u8a2d\u5b9a<\/h3>\n<p>\u30ea\u30be\u30eb\u30d0\u30fc\u306f\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u306e\u540d\u524d\u89e3\u6c7a\u3092\u884c\u3046\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u3059\u3002gRPC\u306b\u306f\u4ee5\u4e0b\u306e\u7269\u3092\u542b\u3080\u3044\u304f\u3064\u304b\u306e\u30ea\u30be\u30eb\u30d0\u30fc\u304c\u7d44\u307f\u8fbc\u307e\u308c\u3066\u304a\u308a\u3001\u30b5\u30fc\u30d0\u306e\u30a2\u30c9\u30ec\u30b9\u3068\u3057\u3066\u6307\u5b9a\u3057\u305f\u6587\u5b57\u5217\u306escheme\u306b\u57fa\u3065\u3044\u3066\u30ea\u30be\u30eb\u30d0\u30fc\u304c\u9078\u629e\u3055\u308c\u307e\u3059\u3002<\/p>\n<ul>\n<li><code>dns<\/code>\n<ul>\n<li>DNS\u3092\u7528\u3044\u3066\u5b9b\u5148\u3092\u89e3\u6c7a\u3059\u308b<\/li>\n<li>\u4f8b\uff1a<code>dns:\/\/example.com:80<\/code><\/li>\n<\/ul>\n<\/li>\n<li><code>unix<\/code>\n<ul>\n<li>Unix\u30c9\u30e1\u30a4\u30f3\u30bd\u30b1\u30c3\u30c8\u3092\u7528\u3044\u308b<\/li>\n<li>\u4f8b\uff1a<code>unix:\/\/\/path\/to\/socket<\/code><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u305f\u3060\u3057\u3001gRPC-Go\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u5b9f\u88c5\u306b\u5bfe\u3057\u3066\u306fscheme\u3092\u6307\u5b9a\u305b\u305a\u306b\u30a2\u30c9\u30ec\u30b9\u3092\u6e21\u3059\u3053\u3068\u304c\u3067\u304d\u3001\u305d\u306e\u5834\u5408\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u30ea\u30be\u30eb\u30d0\u30fc\u304c\u5229\u7528\u3055\u308c\u307e\u3059\u3002<code>grpc.NewClient<\/code> \u3067\u4f5c\u6210\u3055\u308c\u305f\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067 <code>dns<\/code> \u30ea\u30be\u30eb\u30d0\u30fc\u3092\u4f7f\u7528\u3057\u307e\u3059<a target=\"_blank\" href=\"#f-f540327f\" id=\"fn-f540327f\" name=\"fn-f540327f\" title=\"deprecated\u306b\u306a\u3063\u305f grpc.Dial \u3092\u4f7f\u3063\u3066\u3044\u308b\u5834\u5408\u306fpassthrough\u30ea\u30be\u30eb\u30d0\u30fc\u304c\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u5229\u7528\u3055\u308c\u307e\u3059\">*3<\/a>\u3002<\/p>\n<h3 id=\"\u6ce8\u610f\u70b9\">\u6ce8\u610f\u70b9<\/h3>\n<p>dns\u30ea\u30be\u30eb\u30d0\u30fc\u3092\u5229\u7528\u3059\u308b\u5834\u5408\u3001gRPC\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f\u63a5\u7d9a\u6642\uff08\u304a\u3088\u3073\u518d\u63a5\u7d9a\u6642\uff09\u306bDNS\u306e\u540d\u524d\u89e3\u6c7a\u3092\u884c\u3044\u3001\u5f97\u3089\u308c\u305f\u30a2\u30c9\u30ec\u30b9\u3059\u3079\u3066\u306b\u5bfe\u3057\u3066Channel\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u305d\u306e\u5f8c\u306bDNS\u306e\u540d\u524d\u89e3\u6c7a\u7d50\u679c\u304c\u5909\u5316\u3057\u3066\u3082\u81ea\u52d5\u7684\u306b\u518d\u89e3\u6c7a\u306f\u884c\u308f\u308c\u307e\u305b\u3093\u3002\u3064\u307e\u308a\u3001gRPC\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u8d77\u52d5\u3057\u305f\u5f8c\u306b\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u306e\u30a2\u30c9\u30ec\u30b9\u304c\u5897\u52a0\u3057\u3066\u3082\u3001\u305d\u306e\u5909\u66f4\u306f\u53cd\u6620\u3055\u308c\u307e\u305b\u3093\u3002<br \/>\n\u305d\u306e\u305f\u3081\u3001\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u304c\u8ca0\u8377\u306b\u5fdc\u3058\u3066\u30b9\u30b1\u30fc\u30eb\u30a2\u30a6\u30c8\u3059\u308b\u3088\u3046\u306a\u30b1\u30fc\u30b9\u3067\u306f\u3001\u8ca0\u8377\u5206\u6563\u306e\u52b9\u679c\u304c\u9650\u5b9a\u7684\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u30b5\u30fc\u30d3\u30b9\u306e\u30b9\u30b1\u30fc\u30eb\u30a4\u30f3\u3084\u30ed\u30fc\u30eb\u30a2\u30a6\u30c8\u6642\u306b\u306f\u63a5\u7d9a\u4e2d\u306e\u30a2\u30c9\u30ec\u30b9\u306b\u63a5\u7d9a\u51fa\u6765\u306a\u304f\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u5834\u5408\u3001gRPC\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f\u81ea\u52d5\u7684\u306b\u518d\u63a5\u7d9a\u3092\u8a66\u307f\u3001\u305d\u306e\u969b\u306b\u518d\u5ea6DNS\u306e\u540d\u524d\u89e3\u6c7a\u304c\u884c\u308f\u308c\u3066\u65b0\u3057\u3044\u30a2\u30c9\u30ec\u30b9\u304c\u53d6\u5f97\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u30b5\u30fc\u30d0\u5074\u3067 <code>MaxConnectionAge<\/code> \u306e\u8a2d\u5b9a\u3092\u884c\u3044\u3001\u4e00\u5b9a\u6642\u9593\u3067\u63a5\u7d9a\u3092\u5207\u65ad\u3059\u308b\u3088\u3046\u306b\u3059\u308b\u3053\u3068\u3067\u3001gRPC\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u5b9a\u671f\u7684\u306b\u518d\u63a5\u7d9a\u3059\u308b\u3088\u3046\u306b\u306a\u308a\u3001\u305d\u306e\u305f\u3073\u306b\u65b0\u3057\u3044\u30a2\u30c9\u30ec\u30b9\u3092\u53d6\u5f97\u3059\u308b\u3088\u3046\u306b\u4fc3\u3059\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059\u3002\u305f\u3060\u3057\u3001\u983b\u7e41\u306a\u63a5\u7d9a\u306e\u5207\u65ad\u306f\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u60aa\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u3001\u3084\u306f\u308a\u5373\u6642\u306b\u53cd\u6620\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<pre class=\"code lang-go\" data-lang=\"go\" data-unlink=\"\">srv := grpc.NewServer(\n    grpc.KeepaliveParams(keepalive.ServerParameters{\n        \n        MaxConnectionAge:  <span class=\"synConstant\">10<\/span>*time.Minute,\n        MaxConnectionIdle: <span class=\"synConstant\">5<\/span> * time.Minute,\n    }),\n)\n<\/pre>\n<p>\u5206\u304b\u308a\u3084\u3059\u3044\u3088\u3046\u306b <code>loadBalancingConfig<\/code> \u3092 <code>pick_first<\/code> \u306b\u3001<code>MaxConnectionAge<\/code> \u309230\u79d2\u306b\u8a2d\u5b9a\u3057\u3066Pod\u3054\u3068\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u6570\u3092\u89b3\u6e2c\u3057\u3066\u307f\u307e\u3057\u305f\u3002\u6700\u77ed30\u79d2\u3054\u3068\u306bdns\u30ea\u30be\u30eb\u30d0\u30fc\u304c\u30a2\u30c9\u30ec\u30b9\u3092\u518d\u89e3\u6c7a\u3057\u3001\u7570\u306a\u308bPod\u306b\u63a5\u7d9a\u3055\u308c\u308b\u69d8\u5b50\u304c\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><figure class=\"figure-image figure-image-fotolife\" title=\"MaxConnextionAge=30s\u306e\u3068\u304d\u306e\u5404Pod\u3078\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u6570\u306e\u63a8\u79fb\"><span itemscope=\"\" itemtype=\"http:\/\/schema.org\/Photograph\"><img decoding=\"async\" src=\"https:\/\/cdn-ak.f.st-hatena.com\/images\/fotolife\/c\/cybozuinsideout\/20251029\/20251029113009.png\" width=\"800\" height=\"264\" loading=\"lazy\" title=\"\" class=\"hatena-fotolife\" itemprop=\"image\"\/><\/span><figcaption>MaxConnextionAge=30s\u306e\u3068\u304d\u306e\u5404Pod\u3078\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u6570\u306e\u63a8\u79fb<\/figcaption><\/figure>\n<\/p>\n<h2 id=\"\u5b9f\u8df5\u7684\u306a\u5229\u7528\u65b9\u6cd5\">\u5b9f\u8df5\u7684\u306a\u5229\u7528\u65b9\u6cd5<\/h2>\n<h3 id=\"dns-resolver\u3068Kubernetes\u306eheadless\u30b5\u30fc\u30d3\u30b9\u3092\u4f7f\u3046\">dns resolver\u3068Kubernetes\u306eheadless\u30b5\u30fc\u30d3\u30b9\u3092\u4f7f\u3046<\/h3>\n<p>\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30b5\u30a4\u30c9\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b7\u30f3\u30b0\u3092\u5229\u7528\u3059\u308b\u305f\u3081\u306b\u306f\u3001gRPC\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u8907\u6570\u306e\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u306e\u30a2\u30c9\u30ec\u30b9\u3092\u53d6\u5f97\u3067\u304d\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002Kubernetes\u74b0\u5883\u3067ClusterIP\u306eService\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u3001Service\u306eDNS\u540d\u3092\u540d\u524d\u89e3\u6c7a\u3057\u3066\u3082\u5358\u4e00\u306eClusterIP\u30a2\u30c9\u30ec\u30b9\u3057\u304b\u5f97\u3089\u308c\u307e\u305b\u3093\u3002\u3057\u305f\u304c\u3063\u3066\u3001gRPC\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304cService\u306eDNS\u540d\u3092\u540d\u524d\u89e3\u6c7a\u3057\u3066\u3082\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30b5\u30a4\u30c9\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b7\u30f3\u30b0\u306f\u6a5f\u80fd\u3057\u307e\u305b\u3093\u3002<\/p>\n<pre class=\"code lang-yaml\" data-lang=\"yaml\" data-unlink=\"\"><span class=\"synIdentifier\">apiVersion<\/span><span class=\"synSpecial\">:<\/span> v1\n<span class=\"synIdentifier\">kind<\/span><span class=\"synSpecial\">:<\/span> Service\n<span class=\"synIdentifier\">metadata<\/span><span class=\"synSpecial\">:<\/span>\n  <span class=\"synIdentifier\">name<\/span><span class=\"synSpecial\">:<\/span> my-grpc-service\n<span class=\"synIdentifier\">spec<\/span><span class=\"synSpecial\">:<\/span>\n  <span class=\"synIdentifier\">selector<\/span><span class=\"synSpecial\">:<\/span>\n    <span class=\"synIdentifier\">app<\/span><span class=\"synSpecial\">:<\/span> my-grpc-app\n  <span class=\"synIdentifier\">ports<\/span><span class=\"synSpecial\">:<\/span>\n    <span class=\"synStatement\">- <\/span><span class=\"synIdentifier\">protocol<\/span><span class=\"synSpecial\">:<\/span> TCP\n      <span class=\"synIdentifier\">port<\/span><span class=\"synSpecial\">:<\/span> <span class=\"synConstant\">80<\/span>\n      <span class=\"synIdentifier\">targetPort<\/span><span class=\"synSpecial\">:<\/span> <span class=\"synConstant\">8080<\/span>\n<\/pre>\n<pre class=\"code\" data-lang=\"\" data-unlink=\"\">$ dig my-grpc-service.sandbox.svc.cluster.local +short\n10.68.176.44<\/pre>\n<p>\u3053\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u305f\u3081\u306b\u3001Kubernetes\u306e<a target=\"_blank\" href=\"https:\/\/kubernetes.io\/ja\/docs\/concepts\/services-networking\/service\/#headless-service\">Headless Service<\/a>\u3092\u5229\u7528\u3057\u307e\u3059\u3002Headless Service\u306fClusterIP\u30a2\u30c9\u30ec\u30b9\u3092\u6301\u305f\u305a\u3001Service\u306eDNS\u540d\u3092\u540d\u524d\u89e3\u6c7a\u3057\u305f\u969b\u306b\u3001\u305d\u306eService\u306b\u7d10\u3065\u304fPod\u306eIP\u30a2\u30c9\u30ec\u30b9\u3059\u3079\u3066\u304c\u8fd4\u3055\u308c\u307e\u3059\u3002<\/p>\n<pre class=\"code lang-yaml\" data-lang=\"yaml\" data-unlink=\"\">\n<span class=\"synIdentifier\">apiVersion<\/span><span class=\"synSpecial\">:<\/span> v1\n<span class=\"synIdentifier\">kind<\/span><span class=\"synSpecial\">:<\/span> Service\n<span class=\"synIdentifier\">metadata<\/span><span class=\"synSpecial\">:<\/span>\n  <span class=\"synIdentifier\">name<\/span><span class=\"synSpecial\">:<\/span> my-headless-grpc-service\n<span class=\"synIdentifier\">spec<\/span><span class=\"synSpecial\">:<\/span>\n \n  <span class=\"synIdentifier\">clusterIP<\/span><span class=\"synSpecial\">:<\/span> None\n  <span class=\"synIdentifier\">ports<\/span><span class=\"synSpecial\">:<\/span>\n    <span class=\"synStatement\">- <\/span><span class=\"synIdentifier\">protocol<\/span><span class=\"synSpecial\">:<\/span> TCP\n      <span class=\"synIdentifier\">port<\/span><span class=\"synSpecial\">:<\/span> <span class=\"synConstant\">80<\/span>\n      <span class=\"synIdentifier\">targetPort<\/span><span class=\"synSpecial\">:<\/span> <span class=\"synConstant\">8080<\/span>\n<\/pre>\n<pre class=\"code\" data-lang=\"\" data-unlink=\"\">$ dig my-headless-grpc-service.sandbox.svc.cluster.local +short\n10.64.11.135\n10.64.29.167\n10.64.23.139<\/pre>\n<p>\u3053\u306e\u30b5\u30fc\u30d3\u30b9\u5b9b\u3066\u306b\uff08\u9069\u5207\u306b\u8a2d\u5b9a\u3055\u308c\u305f\uff09gRPC\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u63a5\u7d9a\u3059\u308b\u3068\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b7\u30f3\u30b0\u304c\u6a5f\u80fd\u3059\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"code lang-go\" data-lang=\"go\" data-unlink=\"\">client, err := grpc.NewClient(\n    <span class=\"synConstant\">\"my-headless-grpc-service.sandbox.svc.cluster.local:80\"<\/span>,\n    grpc.WithDefaultServiceConfig(<span class=\"synConstant\">`{\"loadBalancingConfig\": [{\"round_robin\":{}}]}`<\/span>),\n)\n<\/pre>\n<p>\u4ee5\u4e0b\u306e\u753b\u50cf\u306f\u5b9f\u969b\u306bKubernetes\u4e0a\u3067Headless Service\u3092\u7528\u3044\u3066gRPC\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30b5\u30a4\u30c9\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b7\u30f3\u30b0\u3092\u884c\u3063\u305f\u969b\u306e\u3001\u5404Pod\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u6570\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u524d\u534a\u306floadBalancingConfig\u3092 <code>pick_first<\/code> \u306e\u307e\u307e\u306b\u3057\u305f\u5834\u5408\u3001\u5f8c\u534a\u306f <code>round_robin<\/code> \u306b\u5909\u66f4\u3057\u305f\u5834\u5408\u3067\u3059\u3002<code>round_robin<\/code> \u306b\u5909\u66f4\u3057\u305f\u3053\u3068\u3067\u3001\u5404Pod\u306b\u5bfe\u3057\u3066\u304a\u304a\u3088\u305d\u5747\u7b49\u306b\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u5206\u6563\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><figure class=\"figure-image figure-image-fotolife\" title=\"pick_first\u3068round_robin\u306e\u6bd4\u8f03\"><span itemscope=\"\" itemtype=\"http:\/\/schema.org\/Photograph\"><img decoding=\"async\" src=\"https:\/\/cdn-ak.f.st-hatena.com\/images\/fotolife\/c\/cybozuinsideout\/20251029\/20251029113013.png\" width=\"800\" height=\"267\" loading=\"lazy\" title=\"\" class=\"hatena-fotolife\" itemprop=\"image\"\/><\/span><figcaption>pick_first\u3068round_robin\u306e\u6bd4\u8f03<\/figcaption><\/figure>\n<\/p>\n<h3 id=\"kubernetes-API\u3092\u4f7f\u3046\u30ab\u30b9\u30bf\u30e0\u30ea\u30be\u30eb\u30d0\u30fc\u3092\u4f7f\u3046\">kubernetes API\u3092\u4f7f\u3046\u30ab\u30b9\u30bf\u30e0\u30ea\u30be\u30eb\u30d0\u30fc\u3092\u4f7f\u3046<\/h3>\n<p>\u6ce8\u610f\u70b9\u3068\u3057\u3066\u8ff0\u3079\u305f\u901a\u308a\u3001DNS\u30ea\u30be\u30eb\u30d0\u30fc\u306f\u5909\u66f4\u306e\u53cd\u6620\u304c\u5373\u6642\u3067\u306f\u306a\u304f\u3001\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u306e\u30b9\u30b1\u30fc\u30eb\u30a2\u30a6\u30c8\u306b\u5bfe\u5fdc\u3057\u306b\u304f\u3044\u3068\u3044\u3046\u8ab2\u984c\u304c\u3042\u308a\u307e\u3059\u3002\u3067\u304d\u308b\u3060\u3051\u5373\u5ea7\u306b\u53cd\u6620\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u3001kubernetes\u306eAPI\u3092\u5229\u7528\u3057\u3066\u7279\u5b9a\u306eService\u30ea\u30bd\u30fc\u30b9\u3092\u76e3\u8996\u3057\u3001\u5909\u66f4\u304c\u3042\u3063\u305f\u3089\u90fd\u5ea6\u53cd\u6620\u3059\u308b\u3088\u3046\u306a\u30ab\u30b9\u30bf\u30e0\u30ea\u30be\u30eb\u30d0\u30fc\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<p>\u5229\u7528\u306f\u3057\u3066\u3044\u307e\u305b\u3093\u304c\u3001\u5b9f\u969b\u306b\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5b9f\u88c5\u304c\u5b58\u5728\u3059\u308b\u3088\u3046\u3067\u3059\u3002<\/p>\n<p><iframe src=\"https:\/\/hatenablog-parts.com\/embed?url=https%3A%2F%2Fgithub.com%2Fsercand%2Fkuberesolver\" title=\"GitHub - sercand\/kuberesolver: Grpc Load Balancer with Kubernetes resolver\" class=\"embed-card embed-webcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 155px; max-width: 500px; margin: 10px 0px;\" loading=\"lazy\"><\/iframe><\/p>\n<h3 id=\"xDS-API\u306e\u53ef\u80fd\u6027\">xDS API\u306e\u53ef\u80fd\u6027<\/h3>\n<p>gRPC\u306fxDS API\u3092\u5229\u7528\u3057\u305f\u30b5\u30fc\u30d3\u30b9\u30c7\u30a3\u30b9\u30ab\u30d0\u30ea\u3068\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b7\u30f3\u30b0\u3082\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u3059<a target=\"_blank\" href=\"#f-ca50fc8e\" id=\"fn-ca50fc8e\" name=\"fn-ca50fc8e\" title=\"https:\/\/grpc.github.io\/grpc\/core\/md_doc_grpc_xds_features.html\">*4<\/a>\u3002xDS\u306fEnvoy\u306a\u3069\u306e\u30b5\u30fc\u30d3\u30b9\u30e1\u30c3\u30b7\u30e5\u3067\u5229\u7528\u3055\u308c\u3066\u3044\u308bAPI\u3067\u3042\u308a\u3001gRPC\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304cxDS\u30b5\u30fc\u30d0\u304b\u3089\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u306e\u60c5\u5831\u3092\u53d6\u5f97\u3057\u3066\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b7\u30f3\u30b0\u3092\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>Istio\u306a\u3069\u306e\u30b5\u30fc\u30d3\u30b9\u30e1\u30c3\u30b7\u30e5\u306f\u30b5\u30a4\u30c9\u30ab\u30fc\u30b3\u30f3\u30c6\u30ca\u306bEnvoy\u3092\u7528\u3044\u3001xDS API\u3092\u5229\u7528\u3057\u3066\u30b5\u30fc\u30d3\u30b9\u30c7\u30a3\u30b9\u30ab\u30d0\u30ea\u3068\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b7\u30f3\u30b0\u3092\u884c\u3044\u307e\u3059\u3002gRPC\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u76f4\u63a5xDS API\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30b5\u30fc\u30d3\u30b9\u30e1\u30c3\u30b7\u30e5\u3092\u5c0e\u5165\u305b\u305a\u306b\u540c\u69d8\u306e\u52b9\u679c\u3092\u5f97\u3089\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>xDS\u30ea\u30be\u30eb\u30d0\u30fc\u306fload balancing config\u306a\u3069\u3082\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u30d7\u30ec\u30fc\u30f3\u304b\u3089\u914d\u4fe1\u3067\u304d\u308b\u307b\u304b\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u81ea\u4f53\u3082\u67d4\u8edf\u306b\u8a2d\u5b9a\u3067\u304d\u308b\u3088\u3046\u3067\u3059\u3002<\/p>\n<p>\u53c2\u8003\uff1a<\/p>\n<h2 id=\"\u307e\u3068\u3081\">\u307e\u3068\u3081<\/h2>\n<p>gRPC\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304a\u3088\u3073gRPC\u30b5\u30fc\u30d0\u304c\u7d20\u6734\u306b\u76f4\u63a5\u901a\u4fe1\u3059\u308b\u30b1\u30fc\u30b9\u306b\u304a\u3044\u3066\u3001\u7279\u5b9a\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u9ad8\u8ca0\u8377\u3092\u304b\u3051\u308b\u3068\u3001\u305d\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u63a5\u7d9a\u3057\u305f\u30b5\u30fc\u30d0\u306b\u8ca0\u8377\u304c\u96c6\u4e2d\u3057\u3066\u3057\u307e\u3046\u554f\u984c\u304c\u3042\u308a\u307e\u3059\u3002gRPC\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30b5\u30a4\u30c9\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b7\u30f3\u30b0\u6a5f\u80fd\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u8907\u6570\u306e\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u306b\u5bfe\u3057\u3066\u8ca0\u8377\u5206\u6563\u304c\u53ef\u80fd\u3068\u306a\u308a\u3001\u8ca0\u8377\u306e\u504f\u308a\u3092\u8efd\u6e1b\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>Kubernetes\u74b0\u5883\u3067\u306f\u3001Headless Service\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u3042\u308bService\u30ea\u30bd\u30fc\u30b9\u306b\u7d10\u3065\u304fPod\u306e\u30a2\u30c9\u30ec\u30b9\u3059\u3079\u3066\u3092gRPC\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u53d6\u5f97\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u3001\u7c21\u5358\u306b\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30b5\u30a4\u30c9\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b7\u30f3\u30b0\u3092\u5c0e\u5165\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u305f\u3060\u3057\u3001DNS\u30ea\u30be\u30eb\u30d0\u30fc\u306f\u540d\u524d\u89e3\u6c7a\u7d50\u679c\u306e\u5909\u66f4\u3092\u5373\u5ea7\u306b\u53cd\u6620\u3067\u304d\u306a\u3044\u305f\u3081\u3001\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u306e\u30b9\u30b1\u30fc\u30eb\u30a2\u30a6\u30c8\u306b\u5bfe\u5fdc\u3057\u306b\u304f\u3044\u70b9\u306b\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u30ab\u30b9\u30bf\u30e0\u30ea\u30be\u30eb\u30d0\u30fc\u3084xDS API\u3092\u5229\u7528\u3059\u308b\u65b9\u6cd5\u3082\u691c\u8a0e\u3059\u308b\u3068\u826f\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n<hr\/>\n<\/div>\n<p><script>(function(d, s, id) {\n  var js, fjs = d.getElementsByTagName(s)[0];\n  if (d.getElementById(id)) return;\n  js = d.createElement(s); js.id = id;\n  js.src = \"\/\/connect.facebook.net\/ja_JP\/sdk.js#xfbml=1&version=v2.3\";\n  fjs.parentNode.insertBefore(js, fjs);\n}(document, 'script', 'facebook-jssdk'));<\/script><br \/>\n<br \/>\n<br \/><a href=\"https:\/\/blog.cybozu.io\/entry\/2025\/10\/29\/113000\">\u5143\u306e\u8a18\u4e8b\u3092\u78ba\u8a8d\u3059\u308b <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"\u3053\u306e\u8a18\u4e8b\u306f\u3001CYBOZU SUMMER BLOG FES &#8217;25\u306e\u8a18\u4e8b\u3067\u3059\u3002 CloudPlatform\u90e8\u306epddg\u3067\u3059\u3002gRPC\u306f\u9ad8\u6027\u80fd\u30fb\u9ad8\u6a5f\u80fd\u306aRPC\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u3042\u308a\u3001\u30b5\u30a4\u30dc\u30a6\u30ba\u3067\u306f\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u30b5\u30fc\u30d3 [&hellip;]","protected":false},"author":1,"featured_media":21331,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-21330","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-company-tec"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>gRPC\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30b5\u30a4\u30c9\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b7\u30f3\u30b0\u3067\u30b5\u30fc\u30d0\u8ca0\u8377\u306e\u504f\u308a\u3092\u8efd\u6e1b\u3059\u308b - Cybozu Inside Out - \u30dd\u30b1\u30b3\u30f3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blog.cybozu.io\/entry\/2025\/10\/29\/113000\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"gRPC\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30b5\u30a4\u30c9\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b7\u30f3\u30b0\u3067\u30b5\u30fc\u30d0\u8ca0\u8377\u306e\u504f\u308a\u3092\u8efd\u6e1b\u3059\u308b - Cybozu Inside Out - \u30dd\u30b1\u30b3\u30f3\" \/>\n<meta property=\"og:description\" content=\"\u3053\u306e\u8a18\u4e8b\u306f\u3001CYBOZU SUMMER BLOG FES &#8217;25\u306e\u8a18\u4e8b\u3067\u3059\u3002 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