{"id":83286,"date":"2026-03-31T16:30:00","date_gmt":"2026-03-31T07:30:00","guid":{"rendered":"https:\/\/www.creationline.com\/tech-blog\/?p=83286"},"modified":"2026-04-01T19:50:14","modified_gmt":"2026-04-01T10:50:14","slug":"%e3%80%90%e3%82%b5%e3%83%97%e3%83%a9%e3%82%a4%e3%83%81%e3%82%a7%e3%83%bc%e3%83%b3%e6%94%bb%e6%92%83%e3%80%91%e3%82%82%e3%81%86%e3%83%a9%e3%82%a4%e3%83%96%e3%83%a9%e3%83%aa%e3%82%92%e4%bd%bf%e3%81%86","status":"publish","type":"post","link":"https:\/\/www.creationline.com\/tech-blog\/agile-devops\/devops\/83286","title":{"rendered":"\u3010\u30b5\u30d7\u30e9\u30a4\u30c1\u30a7\u30fc\u30f3\u653b\u6483\u3011\u3082\u3046\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f7f\u3046\u306e\u304c\u6016\u3044\u3068\u3044\u3046\u8a71"},"content":{"rendered":"\n<p>2026\u5e743\u6708\u3082<a href=\"https:\/\/www.creationline.com\/tech-blog\/cloudnative\/docker\/83207\" type=\"post\" id=\"83207\">\u5f71\u97ff\u306e\u5927\u304d\u3044\u30b5\u30d7\u30e9\u30a4\u30c1\u30a7\u30fc\u30f3\u653b\u6483<\/a>\u304c\u767a\u751f\u3057\u3066\u3057\u307e\u3044\u307e\u3057\u305f\u3002\u3053\u308c\u307b\u3069\u30b5\u30d7\u30e9\u30a4\u30c1\u30a7\u30fc\u30f3\u653b\u6483\u304c\u76db\u3093\u306b\u884c\u308f\u308c\u3066\u3044\u308b\u4eca\u3001\u79c1\u306f\u3082\u306f\u3084\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u901a\u5e38\u306e\u624b\u6bb5\u3067\u4f7f\u3046\u3053\u3068\u306b\u8e8a\u8e87\u3044\u3092\u611f\u3058\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30e9\u30a4\u30d6\u30e9\u30ea\u306f\u30e1\u30e2\u30ea\u4e0a\u306e\u30c7\u30fc\u30bf\u3092\u76d7\u307f\u51fa\u305b\u308b<\/h2>\n\n\n\n<p>\u30e9\u30a4\u30d6\u30e9\u30ea\u306f\u901a\u5e38\u3001\u30e1\u30a4\u30f3\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u30ea\u30f3\u30af\u3055\u308c\u3001\u30e1\u30a4\u30f3\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3068\u540c\u4e00\u306e\u30d7\u30ed\u30bb\u30b9\u3067\u52d5\u4f5c\u3057\u307e\u3059\u3002\u540c\u4e00\u30d7\u30ed\u30bb\u30b9\u5185\u3067\u3042\u308c\u3070\u30e1\u30e2\u30ea\u30a2\u30af\u30bb\u30b9\u306b\u5236\u9650\u306f\u306a\u3044\u305f\u3081\u3001\u30d7\u30ed\u30bb\u30b9\u306e\u30e1\u30e2\u30ea\u5168\u4f53\u3092\u76d7\u307f\u53d6\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002API\u30ad\u30fc\u304c\u8f09\u3063\u3066\u3044\u305f\u3089\u3082\u3061\u308d\u3093\u305d\u308c\u3082\u76d7\u307f\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306f\u30e1\u30a4\u30f3\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3068\u30e9\u30a4\u30d6\u30e9\u30ea\u304c\u540c\u4e00\u30d7\u30ed\u30bb\u30b9\u3067\u52d5\u4f5c\u3059\u308b\u4ee5\u4e0a\u907f\u3051\u3089\u308c\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u6982\u5ff5\u5b9f\u8a3c\u30b3\u30fc\u30c9 (Node.js + Linux)<\/h2>\n\n\n\n<p>\u60aa\u610f\u306e\u3042\u308b\u30ed\u30ae\u30f3\u30b0\u30e9\u30a4\u30d6\u30e9\u30ea \"EvilLogger\" \u3092\u4f7f\u3063\u3066\u3057\u307e\u3046\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>main.mts:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"typescript\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">import { EvilLogger } from '.\/EvilLogger.mts';\nconst var0 = \"A0B0C1D1\";\nconst var1 = var0[0]; \/\/ var0 \u304c\u6700\u9069\u5316\u306b\u3088\u308a\u9664\u53bb\u3055\u308c\u308b\u3053\u3068\u3092\u9632\u3050\nEvilLogger.log('Hello, world!');<\/pre>\n\n\n\n<p>EvilLogger.mts:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"typescript\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">import fs from 'fs';\n\nconst log = async (message: string) => {\n  console.log(message);\n\n  \/* \/proc\/self\/maps \u3068 \/proc\/self\/mem \u3092\u898b\u3066\u30e1\u30e2\u30ea\u4e0a\u306e\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3059\u308b *\/\n  const mapsString = await fs.promises.readFile(\"\/proc\/self\/maps\", 'utf-8');\n  const maps = mapsString.split('\\n');\n  const f = await fs.promises.open('\/proc\/self\/mem');\n  for (const m of maps) {\n    const split = m.split(' ');\n    const regionString = split[0];\n    const [lowerString, higherString] = regionString.split('-');\n    const lower = Number.parseInt(lowerString, 16);\n    const higher = Number.parseInt(higherString, 16);\n    const length = higher - lower;\n    if (!Number.isNaN(length)) {\n      const buf = Buffer.alloc(length)\n      const res = await f.read(buf, 0, length, lower);\n      await fs.promises.writeFile(`dump-${lowerString}-${higherString}.bin`, buf);\n    }\n  }\n};\n\nexport const EvilLogger = {\n  log,\n};\n<\/pre>\n\n\n\n<p>\u4ee5\u4e0a\u306e\u30b3\u30fc\u30c9\u3092 <code>npx tsx main.mts<\/code> \u3067\u5b9f\u884c\u3059\u308b\u3068...?<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">$ npx tsx main.mts\nHello, world!<\/pre>\n\n\n\n<p>Hello, world! \u3068\u8868\u793a\u3055\u308c\u307e\u3057\u305f\u306d\u3002\u3057\u304b\u3057\u305d\u308c\u3060\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30ab\u30ec\u30f3\u30c8\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\u30e1\u30e2\u30ea\u30c0\u30f3\u30d7\u30d5\u30a1\u30a4\u30eb\u304c\u4f5c\u6210\u3055\u308c\u3066\u3044\u307e\u3059:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">$ ls dump-*\ndump-00400000-00b65000.bin\ndump-00b65000-00b67000.bin\ndump-00b68000-025a0000.bin\ndump-02600000-02601000.bin\ndump-02601000-05434000.bin\ndump-05435000-05439000.bin\ndump-05439000-05458000.bin\ndump-05458000-05485000.bin\n...<\/pre>\n\n\n\n<p>\u3053\u306e\u30d5\u30a1\u30a4\u30eb\u7fa4\u306b\u306f\u3001\u30d7\u30ed\u30bb\u30b9\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u3066\u3044\u308b\u3059\u3079\u3066\u306e\u30e1\u30e2\u30ea\u9818\u57df\u306e\u30c7\u30fc\u30bf\u304c\u683c\u7d0d\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u79c1\u306e\u74b0\u5883\u3067\u306f\u5408\u8a08\u6570\u5341MB~\u6570\u767eMB\u306b\u306a\u308a\u307e\u3057\u305f\u3002\u3053\u306e\u30d5\u30a1\u30a4\u30eb\u7fa4\u304b\u3089\u30c7\u30fc\u30bf\u3092\u53d6\u308a\u51fa\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">$ cat dump-* | strings | grep A0B0C1D1\n{\"code\":\"import{EvilLogger}from\\\".\/EvilLogger.mts\\\";const var0=\\\"A0B0C1D1\\\";const var1=var0[0];EvilLogger.log(\\\"Hello, world!\\\");\\n\",\"warnings\":[],\"map\":{\"version\":3,\"mappings\":\"AAAA,OAAS,eAAkB,mBAC3B,MAAM,KAAO,WACb,MAAM,KAAO,KAAK,CAAC,EACnB,WAAW,IAAI,eAAe\",\"names\":[],\"ignoreList\":[],\"sources\":[\"\/home\/user\/memorydump-test\/main.mts\"],\"sourcesContent\":[null]}}\nimport{EvilLogger}from\".\/EvilLogger.mts\";const var0=\"A0B0C1D1\";const var1=var0[0];EvilLogger.log(\"Hello, world!\");\nimport{EvilLogger}from\".\/EvilLogger.mts\";const var0=\"A0B0C1D1\";const var1=var0[0];EvilLogger.log(\"Hello, world!\");\nimport{EvilLogger}from\".\/EvilLogger.mts\";const var0=\"A0B0C1D1\";const var1=var0[0];EvilLogger.log(\"Hello, world!\");\nA0B0C1D1\nimport{EvilLogger}from\".\/EvilLogger.mts\";const var0=\"A0B0C1D1\";const var1=var0[0];EvilLogger.log(\"Hello, world!\");<\/pre>\n\n\n\n<p>main.mts \u306e <code>var0<\/code> \u306e\u5024\u3067\u3042\u308b <code>A0B0C1D1<\/code> \u304c\u542b\u307e\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002\u305d\u308c\u3069\u3053\u308d\u304b\u3001\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u81ea\u4f53\u3082\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u306d\u3002main.mts \u3067\u3001\u30e9\u30a4\u30d6\u30e9\u30ea\u95a2\u6570\u306b\u306f 'Hello, world!' \u3068\u3044\u3046\u6587\u5b57\u5217\u3057\u304b\u6e21\u3057\u3066\u3044\u306a\u3044\u3053\u3068\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30e9\u30a4\u30d6\u30e9\u30ea\u306f\u30e1\u30a4\u30f3\u30b3\u30fc\u30c9\u3068\u540c\u4e00\u30d7\u30ed\u30bb\u30b9\u3067\u52d5\u4f5c\u3057\u3001\u30e1\u30a4\u30f3\u30b3\u30fc\u30c9\u306e\u30e1\u30e2\u30ea\u9818\u57df\u306b\u30a2\u30af\u30bb\u30b9\u53ef\u80fd\u3067\u3042\u308b\u305f\u3081\u3001\u305f\u3068\u3048\u30e9\u30a4\u30d6\u30e9\u30ea\u95a2\u6570\u306b\u6a5f\u5bc6\u60c5\u5831\u3092\u6e21\u3055\u306a\u304b\u3063\u305f\u3068\u3057\u3066\u3082\u30c7\u30fc\u30bf\u3092\u76d7\u307f\u51fa\u3055\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0a\u306e\u30b3\u30fc\u30c9\u306b<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30e1\u30e2\u30ea\u30c7\u30fc\u30bf\u304b\u3089API\u30ad\u30fc\u3092\u63a2\u3057\u51fa\u3059<\/li>\n\n\n\n<li>API\u30ad\u30fc\u3092\u5916\u90e8\u306b\u9001\u4fe1\u3059\u308b<\/li>\n<\/ul>\n\n\n\n<p>\u306a\u3069\u306e\u6a5f\u80fd\u3092\u8ffd\u52a0\u3059\u308c\u3070\u3001\u7acb\u6d3e\u306a \"\u653b\u6483\" \u3068\u3057\u3066\u6210\u7acb\u3057\u3066\u3057\u307e\u3046\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u8003\u3048\u3089\u308c\u308b\u5bfe\u7b56<\/h2>\n\n\n\n<p>\u30e1\u30e2\u30ea\u4e0a\u306e\u30c7\u30fc\u30bf\u3092\u76d7\u307f\u51fa\u3055\u308c\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u306b\u306f\u3001\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u5225\u306e\u30d7\u30ed\u30bb\u30b9\u3067\u52d5\u4f5c\u3055\u305b\u308b\u3057\u304b\u3042\u308a\u307e\u305b\u3093\u3002\u3053\u308c\u306b\u306f\u95a2\u6570\u3092HTTP API\u3084gRPC\u3067\u516c\u958b\u3059\u308b\u3053\u3068\u304c\u8003\u3048\u3089\u308c\u307e\u3059\u304c\u3001\u65e2\u5b58\u30b3\u30fc\u30c9 (\u30e1\u30a4\u30f3\u30b3\u30fc\u30c9\u3082\u30e9\u30a4\u30d6\u30e9\u30ea\u30b3\u30fc\u30c9\u3082) \u3092\u6539\u4fee\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u305a\u8ca0\u62c5\u306f\u5927\u304d\u3044\u3088\u3046\u306b\u601d\u3044\u307e\u3059\u3002\u30b7\u30fc\u30e0\u30ec\u30b9\u306b\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u5225\u30d7\u30ed\u30bb\u30b9\u3067\u52d5\u4f5c\u3055\u305b\u308b\u65b9\u6cd5\u306e\u767b\u5834\u304c\u671f\u5f85\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>2026\u5e743\u6708\u3082\u5f71\u97ff\u306e\u5927\u304d\u3044\u30b5\u30d7\u30e9\u30a4\u30c1\u30a7\u30fc\u30f3\u653b\u6483\u304c\u767a\u751f\u3057\u3066\u3057\u307e\u3044\u307e\u3057\u305f\u3002\u3053\u308c\u307b\u3069\u30b5\u30d7\u30e9\u30a4\u30c1\u30a7\u30fc\u30f3\u653b\u6483\u304c\u76db\u3093\u306b\u884c\u308f\u308c\u3066\u3044\u308b\u4eca\u3001\u79c1\u306f\u3082\u306f\u3084\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u901a\u5e38\u306e\u624b\u6bb5\u3067\u4f7f\u3046\u3053\u3068\u306b\u8e8a\u8e87\u3044\u3092\u611f\u3058\u307e\u3059\u3002 \u30e9\u30a4\u30d6\u30e9\u30ea\u306f\u30e1\u30e2\u30ea\u4e0a\u306e\u30c7\u30fc\u30bf\u3092\u76d7 [&#8230;]<\/p>\n","protected":false},"author":154,"featured_media":83412,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","footnotes":""},"categories":[67,903],"tags":[],"class_list":["post-83286","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-devops","category-k-takahashi"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u3010\u30b5\u30d7\u30e9\u30a4\u30c1\u30a7\u30fc\u30f3\u653b\u6483\u3011\u3082\u3046\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f7f\u3046\u306e\u304c\u6016\u3044\u3068\u3044\u3046\u8a71 - Tech Blog\uff5c\u30af\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3\u30e9\u30a4\u30f3<\/title>\n<meta name=\"description\" content=\"DevOps, k-takahashi 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