{"id":8511,"date":"2025-10-07T14:36:35","date_gmt":"2025-10-07T14:36:35","guid":{"rendered":"https:\/\/pokecon.jp\/job\/?p=8511"},"modified":"2025-10-07T14:36:35","modified_gmt":"2025-10-07T14:36:35","slug":"%e3%81%bb%e3%81%bc%e3%82%bc%e3%83%ad%e3%83%80%e3%82%a6%e3%83%b3%e3%82%bf%e3%82%a4%e3%83%a0%e3%81%aa-pod-%e5%86%8d%e8%b5%b7%e5%8b%95%e6%88%a6%e7%95%a5%ef%bc%88eks-dapr-aws-lb%ef%bc%89","status":"publish","type":"post","link":"https:\/\/pokecon.jp\/job\/8511\/","title":{"rendered":"\u307b\u307c\u30bc\u30ed\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\u306a Pod \u518d\u8d77\u52d5\u6226\u7565\uff08EKS + Dapr + AWS LB\uff09"},"content":{"rendered":"\n<\/p>\n
\n

\u306f\u3058\u3081\u306b<\/h2>\n

\u3053\u3093\u306b\u3061\u306f\u3001Platform\u30bb\u30af\u30b7\u30e7\u30f3\u306e\u30df\u30ab\u30a8\u30eb\u3067\u3059\u3002<\/p>\n

\u4eca\u56de\u6271\u3046\u30c6\u30fc\u30de\u306f\u3001\u30c7\u30d7\u30ed\u30a4\u901f\u5ea6\u306e\u9045\u3055\u3068\u3001\u305d\u308c\u306b\u3088\u308b\u4e0d\u5b89\u3092\u7121\u304f\u3059\u65b9\u6cd5\u306b\u3064\u3044\u3066\u3067\u3059\u3002<\/p>\n

\u73fe\u4ee3\u306e\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306b\u304a\u3044\u3066\u3001\u30b5\u30fc\u30d3\u30b9\u9593\u306e\u901a\u4fe1\u306e\u4fe1\u983c\u6027\u3068\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\u306e\u6700\u5c0f\u5316\u306f\u91cd\u8981\u306a\u8ab2\u984c\u3067\u3059\u3002\u7279\u306b\u3001\u30c7\u30d7\u30ed\u30a4\u3084\u30a4\u30f3\u30d5\u30e9\u306e\u904b\u7528\u5909\u66f4\u6642\u306b\u767a\u751f\u3059\u308b\u4e00\u6642\u7684\u306a\u30a8\u30e9\u30fc\u3084\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u306b\u76f4\u63a5\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u305f\u3081\u3001\u30a4\u30f3\u30d5\u30e9\u5074\u3067\u9069\u5207\u306a\u300c\u30ac\u30fc\u30c9\u30ec\u30fc\u30eb\u300d\u3092\u6574\u3048\u3066\u304a\u304f\u3053\u3068\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n

\u79c1\u305f\u3061\u306f\u73fe\u5728\u3001\u57fa\u76e4\u5237\u65b0\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u304a\u3044\u3066Dapr<\/strong><\/a>\uff08Distributed Application Runtime\uff09\u3092\u6d3b\u7528\u3057\u3066\u3044\u307e\u3059\u3002Dapr\u306fOSS\u3067\u3001\u5206\u6563\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a\u3092\u7c21\u7d20\u5316\u3059\u308b\u512a\u308c\u305f\u30e9\u30f3\u30bf\u30a4\u30e0\u3067\u3059\u3002\u30b5\u30fc\u30d3\u30b9\u9593\u901a\u4fe1\u3001\u72b6\u614b\u7ba1\u7406\u3001\u30d1\u30d6\u30fb\u30b5\u30d6\u30e1\u30c3\u30bb\u30fc\u30b8\u30f3\u30b0\u306a\u3069\u306e\u5171\u901a\u6a5f\u80fd\u3092\u63d0\u4f9b\u3057\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30b3\u30fc\u30c9\u304b\u3089\u8907\u96d1\u306a\u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u306e\u8a73\u7d30\u3092\u62bd\u8c61\u5316\u3057\u3066\u304f\u308c\u307e\u3059\u3002<\/p>\n

\u6211\u3005\u306e\u69cb\u6210\u3067\u306f\u3001EKS\u4e0a\u3067Dapr\u3092\u6d3b\u7528\u3057\u3001AWS Load Balancer Controller\uff08ALB\/NLB\uff09\u7d4c\u7531\u3067\u5916\u90e8\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u53d7\u3051\u308b\u5f62\u3092\u63a1\u7528\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

\"\u69cb\u6210\u56f3\"<\/span><\/p>\n

\u3057\u304b\u3057\u3001\u3053\u306e\u69cb\u6210\u3067Pod\u306e\u524a\u9664\u30fb\u518d\u8d77\u52d5\u30fb\u30ce\u30fc\u30c9Draining\u304c\u767a\u751f\u3059\u308b\u3068\u3001\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\u3084\u77ac\u9593\u7684\u306a\u30a8\u30e9\u30fc\u7387\u4e0a\u6607\u304c\u8d77\u3053\u308b\u8ab2\u984c\u306b\u76f4\u9762\u3057\u307e\u3057\u305f\u3002\u4eca\u56de\u306f\u3001Kubernetes\u30de\u30cb\u30d5\u30a7\u30b9\u30c8\/\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u8a2d\u5b9a<\/strong>\u306b\u7126\u70b9\u3092\u5f53\u3066\u3066\u3001\u3053\u306e\u554f\u984c\u3092\u3069\u306e\u3088\u3046\u306b\u89e3\u6c7a\u3067\u304d\u308b\u306e\u304b\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n

\u8d77\u304d\u3066\u3044\u305f\u73fe\u8c61<\/h2>\n

\u30c7\u30d7\u30ed\u30a4\u6642\u3084\u30ce\u30fc\u30c9\u5165\u308c\u66ff\u3048\uff08Karpenter\u306b\u3088\u308b\u30ce\u30fc\u30c9\u524a\u9664\uff09\u306e\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ed\u30b0\u306b\u6b21\u306e\u3088\u3046\u306a\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u3066\u3044\u307e\u3057\u305f\u3002\u307e\u305f\u3001\u540c\u3058\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u3067\u306f500\uff08Server Error\uff09\u3068503\uff08Service Unavailable\uff09\u306e\u30ec\u30b9\u30dd\u30f3\u30b9\u6bd4\u7387\u304c\u8df3\u306d\u4e0a\u304c\u3063\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n

{\"errorCode\":\"ERR_DIRECT_INVOKE\",\"message\":\"failed to invoke, id: ...\"}<\/pre>\n
\u89b3\u6e2c\u3055\u308c\u305f\u4e3b\u306a\u30d1\u30bf\u30fc\u30f3\u306f\u6b21\u306e2\u3064\u3067\u3057\u305f\uff1b<\/p>\n
    \n
  1. \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3Pod\u304c\u524a\u9664\u3055\u308c\u308b\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u3001\u4e00\u6642\u7684\u306b500\u7cfb\u30a8\u30e9\u30fc\uff08\u5185\u90e8\u30a8\u30e9\u30fc\uff09\u304c\u8df3\u306d\u4e0a\u304c\u3063\u305f\u3002<\/li>\n
  2. Ingress Controller\u306ePod\u304c\u524a\u9664\u3055\u308c\u308b\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u3001\u4e00\u6642\u7684\u306b503\uff08Service Unavailable\uff09\u304c\u5897\u52a0\u3057\u305f\u3002<\/li>\n<\/ol>\n
    \u300c\u898b\u3048\u308b\u75c7\u72b6\u304c\u5225\u306a\u306e\u3067\u3001\u7406\u7531\u3082\u3082\u3057\u304b\u3057\u305f\u3089\u5225\u304b\u3082\uff1f\u300d\u3068\u601d\u3044\u307e\u3057\u305f\u304c\u3001\u307e\u305a\u306fPod\u304c\u524a\u9664\u3055\u308c\u308b\u3068\u5185\u90e8\u3067\u4f55\u304c\u8d77\u304d\u308b\u306e\u304b\u3092\u62bc\u3055\u3048\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n
    Pod \u304c\u524a\u9664\u3055\u308c\u308b\u3068\u4f55\u304c\u8d77\u304d\u308b\u304b\uff08Graceful Termination\uff09<\/h2>\n
    Pod\u306e\u524a\u9664 \/ \u30ed\u30fc\u30ea\u30f3\u30b0\u66f4\u65b0 \/ \u30ce\u30fc\u30c9\u306edrain\u306a\u3069\u3067Pod\u7d42\u4e86\u304c\u59cb\u307e\u308b\u3068\u3001Kubernetes\u306f\u307b\u307c\u540c\u6642\u306b2\u3064\u306e\u51e6\u7406\u30d5\u30ed\u30fc\u3092\u8d70\u3089\u305b\u307e\u3059\u3002<\/p>\n
    \n\n\n\n\n\n
     \u30d5\u30ed\u30fc <\/th>\n \u5f79\u5272 <\/th>\n \u4e3b\u306a\u69cb\u6210\u8981\u7d20 <\/th>\n<\/tr>\n<\/thead>\n
     A. \u30b3\u30f3\u30c6\u30ca\u505c\u6b62\u30b7\u30fc\u30b1\u30f3\u30b9 <\/td>\n \u30a2\u30d7\u30ea\u51e6\u7406\u306e\u505c\u6b62 <\/td>\n preStop Hook -> SIGTERM ->\uff08\u5f85\u6a5f\uff09-> SIGKILL <\/td>\n<\/tr>\n
     B. \u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u9664\u5916\u30b7\u30fc\u30b1\u30f3\u30b9 <\/td>\n \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u7d4c\u8def\u304b\u3089\u5916\u3059 <\/td>\n Endpoints \u66f4\u65b0 -> kube-proxy \/ CNI \u53cd\u6620 -> DNS TTL \u6d88\u5316 <\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n
    A. \u30b3\u30f3\u30c6\u30ca\u505c\u6b62\u30b7\u30fc\u30b1\u30f3\u30b9<\/h3>\n
      \n
    1. \uff08\u4efb\u610f\uff09preStop<\/code> lifecycle hook\u5b9f\u884c<\/li>\n
    2. \u5404\u30b3\u30f3\u30c6\u30ca\u306b SIGTERM<\/code><\/li>\n
    3. Pod\u306e terminationGracePeriodSeconds<\/code> \u307e\u3067\u5f85\u6a5f\uff08\u30c7\u30d5\u30a9\u30eb\u30c830s\uff09<\/li>\n
    4. \u898f\u5b9a\u6642\u9593\u5185\u306b\u7d42\u4e86\u3057\u306a\u3051\u308c\u3070 SIGKILL<\/code><\/li>\n<\/ol>\n
      B. \u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u9664\u5916\u30b7\u30fc\u30b1\u30f3\u30b9<\/h3>\n
        \n
      1. EndpointSlice \/ Endpoints\u304b\u3089\u5f53\u8a72Pod IP\u3092\u524a\u9664\uff08\u975e\u540c\u671f\uff09<\/li>\n
      2. kube-proxy \/ CNI\u304ciptables \/ eBPF\u30eb\u30fc\u30eb\u66f4\u65b0<\/li>\n
      3. CoreDNS\u3067\u30ec\u30b3\u30fc\u30c9\u66f4\u65b0\u3001TTL\uff08\u4f8b: 30s\uff09\u306b\u3088\u308a\u53e4\u3044\u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u6b8b\u308b<\/li>\n<\/ol>\n
        \u554f\u984c\u306b\u306a\u308b\u6642\u9593\u5dee<\/h3>\n
        \"Pod\u7d42\u4e86\u30b7\u30fc\u30b1\u30f3\u30b9\u6982\u8981\uff08Graceful<\/span><\/p>\n
        \u30b3\u30f3\u30c6\u30ca\u505c\u6b62\uff08A\uff09\u304c\u901f\u304f\u7d42\u308f\u308b\u4e00\u65b9\u3067\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u9664\u5916\uff08B\uff09\u306f\u975e\u540c\u671f + DNS\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u3088\u308a\u6700\u5927\u3067\u6570\u5341\u79d2\u9045\u5ef6\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
        \u4e0a\u56f3\u306e\u30d1\u30bf\u30fc\u30f3\uff11\u306f\u7406\u60f3\u7684\u306a\u30b1\u30fc\u30b9\u3067\u3001\u3059\u3079\u3066\u304c\u6b63\u5e38\u306b\u52d5\u4f5c\u3057\u3066\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u306a\u3044\u72b6\u6cc1\u3092\u8868\u3057\u3066\u3044\u307e\u3059\u3002\u4e00\u65b9\u3001\u30d1\u30bf\u30fc\u30f3\uff12\u3067\u306fA\uff08\u30b3\u30f3\u30c6\u30ca\u505c\u6b62\u30b7\u30fc\u30b1\u30f3\u30b9\uff09\u3068B\uff08\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u9664\u5916\u30b7\u30fc\u30b1\u30f3\u30b9\uff09\u304c\u4e26\u5217\u3067\u9032\u307f\u3001A\u5b8c\u4e86\u5f8c\u3082\u3057\u3070\u3089\u304fB\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u304c\u6b8b\u308b\u300c\u30ae\u30e3\u30c3\u30d7\u9818\u57df\u300d\u304c\u767a\u751f\u3059\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
        \u3053\u306e\u30ae\u30e3\u30c3\u30d7\u4e2d\u306b\u3001\u65e2\u306b\u30a2\u30d7\u30ea\u306f\u7d42\u4e86\u624b\u7d9a\u304d\u306b\u5165\u308a\u3064\u3064\u3042\u308b\u306e\u306b\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u98db\u3073\u3001ERR_DIRECT_INVOKE<\/code> \u306e\u3088\u3046\u306a\u4e00\u6642\u30a8\u30e9\u30fc\u304c\u51fa\u307e\u3059\u3002<\/p>\n
        \u5bfe\u7b56: \u610f\u56f3\u7684\u306a\u300c\u4f59\u767d\u300d\u3092\u4f5c\u308b<\/h3>\n
        preStop<\/code> \u3067\u77ed\u3044\u30b9\u30ea\u30fc\u30d7\u3092\u5165\u308c\u3066 Endpoint \u306e\u66f4\u65b0\u304c\u7d42\u308f\u3063\u3066\u305d\u308c\u306b\u6c17\u3065\u304f\u307e\u3067\uff08\u30d7\u30ed\u30d1\u30b2\u30fc\u30b7\u30e7\u30f3\uff09\u3092\u5f85\u3064\u4f59\u767d<\/strong> \u3092\u78ba\u4fdd\u3057\u307e\u3059\u3002<\/p>\n
        Sidecar\uff08\u672c\u4f8b\u3067\u306fDapr\uff09\u3092\u7d4c\u7531\u3057\u3066\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u547c\u3073\u51fa\u3057\u3059\u308b\u5834\u5408\u3001SIGTERM\u306fPod\u5185\u306e\u5168\u30b3\u30f3\u30c6\u30ca\u3078\u540c\u6642\u306b\u9001\u3089\u308c\u308b\u305f\u3081\u3001Sidecar\u304c\u5148\u306b\u7d42\u4e86\u3059\u308b\u3068\u9014\u4e2d\u3067\u63a5\u7d9a\u304c\u5931\u308f\u308c\u307e\u3059\u3002
        \nEndpoint\u4f1d\u64ad\u304c\u7d42\u308f\u308b\u307e\u3067Sidecar\u3082\u5b58\u7d9a\u3055\u305b\u308b\u3088\u3046\u3001\u5f8c\u8ff0\u306edapr.io\/block-shutdown-duration<\/a>\u3067\u5f85\u6a5f\u6642\u9593\u3092\u63c3\u3048\u307e\u3059\u3002<\/p>\n
        \u63a8\u5968\u521d\u671f\u5024: 35\u79d2\uff08CoreDNS\u306e\u30c7\u30d5\u30a9\u30eb\u30c8TTL<\/a>\u304c30\u79d2\u3067\u3042\u308b\u3053\u3068\u3068\u3001Endpoint\u4f1d\u64ad\u901f\u5ea6\u3092\u8003\u616e\u3002\u5b9f\u969b\u306e\u30af\u30e9\u30b9\u30bf\u74b0\u5883\u3067\u89b3\u6e2c\u3057\u3066\u8abf\u6574\u53ef\uff09\u3002<\/p>\n
        Manifest\u306e\u4f8b<\/h4>\n
        apiVersion<\/span>:<\/span> apps\/v1\nkind<\/span>:<\/span> Deployment\nmetadata<\/span>:<\/span>\n  name<\/span>:<\/span> sample-api\nspec<\/span>:<\/span>\n  replicas<\/span>:<\/span> 3<\/span>\n  strategy<\/span>:<\/span>\n    type<\/span>:<\/span> RollingUpdate\n    rollingUpdate<\/span>:<\/span>\n      maxUnavailable<\/span>:<\/span> 0<\/span>  \n      maxSurge<\/span>:<\/span> 1<\/span>        \n  selector<\/span>:<\/span>\n    matchLabels<\/span>:<\/span>\n      app<\/span>:<\/span> sample-api\n  template<\/span>:<\/span>\n    metadata<\/span>:<\/span>\n      labels<\/span>:<\/span>\n        app<\/span>:<\/span> sample-api\n      annotations<\/span>:<\/span>\n        dapr.io\/enabled<\/span>:<\/span> \"true\"<\/span>\n        dapr.io\/app-id<\/span>:<\/span> \"sample-api\"<\/span>\n       \n        dapr.io\/block-shutdown-duration<\/span>:<\/span> \"30s\"<\/span>\n    spec<\/span>:<\/span>\n      terminationGracePeriodSeconds<\/span>:<\/span> 60<\/span> \n      containers<\/span>:<\/span>\n        - <\/span>name<\/span>:<\/span> app\n          image<\/span>:<\/span> ghcr.io\/example\/sample-api:1.2.3\n          lifecycle<\/span>:<\/span>\n            preStop<\/span>:<\/span>\n              exec<\/span>:<\/span>\n                command<\/span>:<\/span> [<\/span>\"\/bin\/sh\"<\/span>, \"-c\"<\/span>, \"echo 'preStop: wait for LB & DNS'; sleep 30\"<\/span>]<\/span>\n          ports<\/span>:<\/span>\n            - <\/span>containerPort<\/span>:<\/span> 8080<\/span>\n          readinessProbe<\/span>:<\/span>\n            httpGet<\/span>:<\/span>\n              path<\/span>:<\/span> \/healthz\/ready\n              port<\/span>:<\/span> 8080<\/span>\n            periodSeconds<\/span>:<\/span> 5<\/span>\n            failureThreshold<\/span>:<\/span> 3<\/span>\n          livenessProbe<\/span>:<\/span>\n            httpGet<\/span>:<\/span>\n              path<\/span>:<\/span> \/healthz\/live\n              port<\/span>:<\/span> 8080<\/span>\n            periodSeconds<\/span>:<\/span> 10<\/span>\n<\/pre>\n
        \u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n