{"id":43725,"date":"2021-08-18T10:00:24","date_gmt":"2021-08-18T01:00:24","guid":{"rendered":"https:\/\/www.creationline.com\/?p=43725"},"modified":"2021-08-16T09:17:57","modified_gmt":"2021-08-16T00:17:57","slug":"kubernetes-v1-22%ef%bc%9a%e7%9f%a5%e3%81%a3%e3%81%a6%e3%81%8a%e3%81%8d%e3%81%9f%e3%81%84%e3%82%bb%e3%82%ad%e3%83%a5%e3%83%aa%e3%83%86%e3%82%a3%e6%a9%9f%e8%83%bd-aqua-%e3%82%b3%e3%83%b3%e3%83%86","status":"publish","type":"post","link":"https:\/\/www.creationline.com\/tech-blog\/cloudnative\/aquasecurity\/43725","title":{"rendered":"Kubernetes v1.22\uff1a\u77e5\u3063\u3066\u304a\u304d\u305f\u3044\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u6a5f\u80fd #aqua #\u30b3\u30f3\u30c6\u30ca #\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 #k8s"},"content":{"rendered":"<p>\u672c\u30d6\u30ed\u30b0\u306f\u300cAqua Security\u300d\u793e\u306e\u6280\u8853\u30d6\u30ed\u30b0\u30672021\u5e748\u67085\u65e5\u306b\u516c\u958b\u3055\u308c\u305f\u300c<a href=\"https:\/\/blog.aquasec.com\/kubernetes-version-1.22-security-features\" rel=\"nofollow noopener noreferrer\" target=\"_blank\"> Kubernetes Version 1.22: Security Features You Need to Know <\/a>\u300d\u306e\u65e5\u672c\u8a9e\u7ffb\u8a33\u3067\u3059\u3002<\/p>\n<p><center><img loading=\"lazy\" decoding=\"async\" src=\"\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2021\/08\/9f4f13878a8031e5a848a1eb4a3e9b77.png\" alt=\"\" width=\"865\" height=\"416\" class=\"alignnone size-full wp-image-43727\" srcset=\"https:\/\/www.creationline.com\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2021\/08\/9f4f13878a8031e5a848a1eb4a3e9b77.png 865w, https:\/\/www.creationline.com\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2021\/08\/9f4f13878a8031e5a848a1eb4a3e9b77-360x173.png 360w, https:\/\/www.creationline.com\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2021\/08\/9f4f13878a8031e5a848a1eb4a3e9b77-768x369.png 768w\" sizes=\"auto, (max-width: 865px) 100vw, 865px\" \/><\/center><\/p>\n<h2>Kubernetes v1.22\uff1a\u77e5\u3063\u3066\u304a\u304d\u305f\u3044\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u6a5f\u80fd<\/h2>\n<hr \/>\n<p>\u5148\u65e5\u65b0\u305f\u306b Kubernetes v1.22 \u304c\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u307e\u3057\u305f\u3002\u76f8\u5909\u308f\u3089\u305a\u3001\u30a2\u30eb\u30d5\u30a1\u30ea\u30ea\u30fc\u30b9\u3068\u3057\u3066\u6210\u719f\u30d7\u30ed\u30bb\u30b9\u3092\u958b\u59cb\u3059\u308b\u65b0\u6a5f\u80fd\u3068\u3001\u30d9\u30fc\u30bf\u307e\u305f\u306f\u5b89\u5b9a\u7248\u306b\u79fb\u884c\u3059\u308b\u305d\u306e\u4ed6\u306e\u6a5f\u80fd\u304c\u6df7\u5728\u3057\u3066\u3044\u308b\u3053\u3068\u306f\u8208\u5473\u6df1\u3044\u3067\u3059\u3002\u4eca\u56de\u306e\u30ea\u30ea\u30fc\u30b9\u3067\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u89b3\u70b9\u304b\u3089\u3044\u304f\u3064\u304b\u306e\u6ce8\u76ee\u3059\u3079\u304d\u70b9\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>PodSecurity admission controller<\/h3>\n<p>PodSecurityPolicy \u6a5f\u80fd\u304c <a href=\"https:\/\/blog.aquasec.com\/kubernetes-version-1.21-features\" rel=\"noopener\" target=\"_blank\">Kubernetes v1.21<\/a> \u3067\u975e\u63a8\u5968\u3068\u306a\u3063\u305f\u5f8c\u3001\u305d\u306e\u30c4\u30ea\u30fc\u5185\u306e\u4ee3\u66ff\u6a5f\u80fd\u304c<a href=\"https:\/\/github.com\/kubernetes\/enhancements\/issues\/2579\" rel=\"noopener\" target=\"_blank\">\u4eca\u56de\u306e\u30ea\u30ea\u30fc\u30b9\u3067\u30a2\u30eb\u30d5\u30a1\u6a5f\u80fd\u3068\u3057\u3066\u767b\u5834<\/a>\u3057\u307e\u3057\u305f\u3002\u73fe\u6642\u70b9\u3067\u306f\u672c\u756a\u74b0\u5883\u3067\u306e\u4f7f\u7528\u306f\u63a8\u5968\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u304c\u3001\u30a2\u30eb\u30d5\u30a1\u7248\u3068\u3057\u3066\u63d0\u4f9b\u3055\u308c\u308b\u3053\u3068\u3067\u3001\u30e6\u30fc\u30b6\u306f\u3053\u306e\u6a5f\u80fd\u304c\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 Admission Controll \u306e\u30cb\u30fc\u30ba\u3092\u6e80\u305f\u3059\u304b\u3069\u3046\u304b\u3092\u8a66\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u65b0\u6a5f\u80fd\u306e\u73fe\u5728\u306e\u8a2d\u8a08\u306f\u3001\u7f6e\u304d\u63db\u3048\u5bfe\u8c61\u306e PSP \u6a5f\u80fd\u307b\u3069\u8907\u96d1\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u540c\u6642\u306b\u67d4\u8edf\u6027\u3082\u305d\u308c\u307b\u3069\u9ad8\u304f\u306a\u3044\u305f\u3081\u3001\u8907\u96d1\u306a\u30dd\u30ea\u30b7\u30fc\u8981\u4ef6\u306b\u306f\u5916\u90e8\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u65b9\u304c\u9069\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>\u975e\u7279\u6a29\u30dd\u30fc\u30c8\u306esysctl\u304c\u300csafe\u300d\u3068\u30de\u30fc\u30af\u3055\u308c\u308b<\/h3>\n<p>\u30b3\u30f3\u30c6\u30ca\u3092\u300croot\u300d\u30e6\u30fc\u30b6\u3067\u5b9f\u884c\u3059\u308b\u4e3b\u306a\u7406\u7531\u306e1\u3064\u306f\u30011024 \u4ee5\u4e0b\u306e\u30dd\u30fc\u30c8\u3092\u30d0\u30a4\u30f3\u30c9\u3067\u304d\u308b\u304b\u3089\u3067\u3059\u3002\u3053\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306e Kubernetes \u304b\u3089\u306f\u3001<a href=\"https:\/\/raesene.github.io\/blog\/2021\/07\/03\/containers-and-low-ports\/\" rel=\"noopener\" target=\"_blank\">\u975e\u7279\u6a29\u30e6\u30fc\u30b6\u304c\u3053\u308c\u3089\u306e\u4f4e\u3044\u30dd\u30fc\u30c8\u3092\u30d0\u30a4\u30f3\u30c9\u3067\u304d\u308b<\/a>\u3088\u3046\u306a Pod \u8a2d\u5b9a\u304c\u53ef\u80fd\u3068\u306a\u308a\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a\u8005\u304c\u30b3\u30f3\u30c6\u30ca\u306b\u975e root \u30e6\u30fc\u30b6\u30a2\u30ab\u30a6\u30f3\u30c8\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u5bb9\u6613\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>v1.22 \u3067\u306f\u3001Pod\u30de\u30cb\u30d5\u30a7\u30b9\u30c8\u306e securityContext \u5185\u306e sysctl \u3092\u5909\u66f4\u3059\u308b\u3053\u3068\u3067\u3001\u975e\u7279\u6a29\u30e6\u30fc\u30b6\u3068\u3057\u3066\u5b9f\u884c\u3057\u3066\u3044\u308b\u30b3\u30f3\u30c6\u30ca\u304c\u4f4e\u3044\u30dd\u30fc\u30c8\u3092\u30d0\u30a4\u30f3\u30c9\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308b\u306f\u305a\u3067\u3059\u3002<\/p>\n<p style=\"font-size: 18px;\"><span style=\"font-family: 'Courier New', Courier, monospace;\">securityContext:<br \/><\/span><span style=\"font-family: 'Courier New', Courier, monospace;\">&nbsp; &nbsp; &nbsp;sysctls:<br \/><\/span><span style=\"font-family: 'Courier New', Courier, monospace;\">&nbsp; &nbsp; &nbsp;- name: net.ipv4.ip_unprivileged_port_start<br \/><\/span><span style=\"font-family: 'Courier New', Courier, monospace;\">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; value: \"1\"<\/span><\/p>\n<h3>NetworkPolicyEndPort\u304c\u30d9\u30fc\u30bf\u7248\u3078\u79fb\u884c<\/h3>\n<p><a href=\"https:\/\/www.aquasec.com\/cloud-native-academy\/kubernetes-101\/kubernetes-networking\/#network-policies\" rel=\"noopener\" target=\"_blank\">Kubernetes \u306e NetworkPolicy<\/a> \u3067\u3001\u30dd\u30fc\u30c8\u7bc4\u56f2\u3092\u5bfe\u8c61\u3068\u3057\u3066\u30dd\u30ea\u30b7\u30fc\u8a2d\u5b9a\u3092\u5b9a\u7fa9\u3067\u304d\u308b\u3053\u306e\u6a5f\u80fd\u306f\u3001\u62e1\u5f35\u6a5f\u80fd\u3068\u3057\u3066\u5b58\u5728\u3057\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n<p>v1.22 \u3067\u306f\u3001<a href=\"https:\/\/github.com\/kubernetes\/kubernetes\/pull\/102834\" rel=\"noopener\" target=\"_blank\">\u3053\u306e\u6a5f\u80fd\u306f\u30d9\u30fc\u30bf\u7248\u306b\u79fb\u884c<\/a>\u3057\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u6709\u52b9\u306b\u306a\u308a\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u3053\u306e\u6a5f\u80fd\u3092\u6709\u52b9\u306b\u3059\u308b\u306b\u306f\u3001Container Network Interface(CNI)\u304c\u3053\u308c\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>\u30c7\u30d5\u30a9\u30eb\u30c8seccomp\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb<\/h3>\n<p>v1.22 \u3067\u306f\u3001\u30ce\u30fc\u30c9\u3054\u3068\u306b\u30c7\u30d5\u30a9\u30eb\u30c8\u306e seccomp \u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u306e\u30b5\u30dd\u30fc\u30c8\u3092\u8ffd\u52a0\u3059\u308b\u6a5f\u80fd\u304c<a href=\"https:\/\/github.com\/kubernetes\/kubernetes\/pull\/101943\" rel=\"noopener\" target=\"_blank\">\u30a2\u30eb\u30d5\u30a1\u7248\u3068\u3057\u3066\u8ffd\u52a0<\/a>\u3055\u308c\u307e\u3057\u305f\u3002\u3053\u308c\u306b\u3088\u308a\u3001Kubernetes \u3067\u30b3\u30f3\u30c6\u30ca\u3092\u5b9f\u884c\u3059\u308b\u969b\u306b Docker \u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u306e seccomp \u30dd\u30ea\u30b7\u30fc\u304c\u7121\u52b9\u3068\u306a\u3063\u3066\u3044\u305f\u3053\u3068\u304c\u539f\u56e0\u3067\u3001Kubernetes \u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306b\u9577\u5e74\u5b58\u5728\u3057\u3066\u3044\u305f\u5f31\u70b9\u3092\u89e3\u6d88\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>seccomp \u306f\u3001Linux \u30b3\u30f3\u30c6\u30ca\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306b\u304a\u3044\u3066\u91cd\u8981\u306a\u30ec\u30a4\u30e4\u30fc\u3067\u3042\u308a\u3001Mark Manning \u6c0f\u306e <a href=\"https:\/\/www.antitree.com\/2020\/07\/keyctl-unmask-going-florida-on-the-state-of-containerizing-linux-keyrings\/\" rel=\"noopener\" target=\"_blank\">keyctl-unmask<\/a> \u7814\u7a76\u3067\u793a\u3055\u308c\u305f\u3088\u3046\u306b\u3001\u653b\u6483\u8005\u304c Linux \u30ab\u30fc\u30cd\u30eb\u306e\u30ad\u30fc\u30ea\u30f3\u30b0\u304b\u3089\u30b7\u30fc\u30af\u30ec\u30c3\u30c8\u30c7\u30fc\u30bf\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u3088\u3046\u306a\u884c\u70ba\u3092\u963b\u6b62\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002seccomp \u30d5\u30a3\u30eb\u30bf\u30fc\u3092\u5b9f\u884c\u3057\u305f\u6a19\u6e96\u7684\u306a Docker \u30b3\u30f3\u30c6\u30ca\u306f\u3001\u7d04 60 \u306e\u7279\u5b9a\u306e\u30b7\u30b9\u30c6\u30e0\u30b3\u30fc\u30eb\u3092\u30d6\u30ed\u30c3\u30af\u3057\u307e\u3059\u3002<\/p>\n<h3>rootless\u30b3\u30f3\u30c6\u30ca\u306e\u30b5\u30dd\u30fc\u30c8<\/h3>\n<p>v1.22 \u3067\u30a2\u30eb\u30d5\u30a1\u7248\u3068\u3057\u3066\u5c0e\u5165\u3055\u308c\u308b\u3082\u30461\u3064\u306e\u6a5f\u80fd\u306f\u3001kubelet \u304a\u3088\u3073\u305d\u306e\u4ed6\u306e\u30ce\u30fc\u30c9\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304c\u3001\u30e6\u30fc\u30b6\u30cd\u30fc\u30e0\u30b9\u30da\u30fc\u30b9\u306e\u30af\u30e9\u30b9\u30bf\u30ce\u30fc\u30c9\u4e0a\u3067\u5b9f\u884c\u3055\u308c\u308b\u3053\u3068\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u3053\u306e\u5909\u66f4\u304c\u5b9f\u88c5\u3055\u308c\u308b\u3068\u3001Kubernetes \u306e\u3059\u3079\u3066\u306e\u30ce\u30fc\u30c9\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3068\u30b3\u30f3\u30c6\u30ca\u3092<a href=\"\/lab\/aquasecurity\/40163\" rel=\"noopener\" target=\"_blank\">\u975e root \u30e6\u30fc\u30b6\u3068\u3057\u3066\u5b9f\u884c<\/a>\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u3001\u30b3\u30f3\u30c6\u30ca\u306e\u30d6\u30ec\u30a4\u30af\u30a2\u30a6\u30c8\u653b\u6483\u306b\u3088\u3063\u3066\u57fa\u76e4\u3068\u306a\u308b\u30af\u30e9\u30b9\u30bf\u30fc\u30ce\u30fc\u30c9\u304c\u5371\u967a\u306b\u3055\u3089\u3055\u308c\u308b\u30ea\u30b9\u30af\u304c\u5927\u5e45\u306b\u8efd\u6e1b\u3055\u308c\u307e\u3059\u3002<\/p>\n<h2>\u307e\u3068\u3081<\/h2>\n<hr \/>\n<p>\u4eca\u56de\u306e\u30ea\u30ea\u30fc\u30b9\u306b\u542b\u307e\u308c\u308b\u4e3b\u8981\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u6a5f\u80fd\u306e\u307b\u3068\u3093\u3069\u306f\u30a2\u30eb\u30d5\u30a1\u7248\u3067\u3059\u304c\u3001\u30e6\u30fc\u30b6\u3084\u7ba1\u7406\u8005\u306e\u305f\u3081\u306b Kubernetes \u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u5411\u4e0a\u3055\u305b\u308b\u305f\u3081\u306e\u7d99\u7d9a\u7684\u306a\u53d6\u308a\u7d44\u307f\u3092\u898b\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u306e\u306f\u7d20\u6674\u3089\u3057\u3044\u3053\u3068\u3067\u3059\u3002\u3053\u308c\u307e\u3067\u3068\u540c\u69d8\u306b\u3001\u672c\u30ea\u30ea\u30fc\u30b9\u306b\u304a\u3051\u308b\u65b0\u3057\u3044 sysctl \u306e\u30b5\u30dd\u30fc\u30c8\u306e\u3088\u3046\u306b\u3001\u5c0f\u3055\u306a\u5909\u5316\u306b\u6ce8\u76ee\u3059\u308b\u3053\u3068\u3082\u91cd\u8981\u3067\u3059\u3002\u305d\u308c\u3089\u306f\u6bb5\u968e\u7684\u306a\u6539\u5584\u3092\u63d0\u4f9b\u3057\u3001\u3088\u308a\u5b89\u5168\u306a\u65b9\u6cd5\u3078\u306e\u5909\u66f4\u3092\u5bb9\u6613\u306b\u3067\u304d\u308b\u304b\u3089\u3067\u3059\u3002<\/p>\n<p><center>\n\t\t<!--HubSpot Call-to-Action Code -->\n\t\t<span class=\"hs-cta-wrapper\" id=\"hs-cta-wrapper-fecc193b-bbc5-40d2-9588-ed7b022af3aa\">\n\t\t<span class=\"hs-cta-node 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