{"id":6429,"date":"2019-08-29T08:09:10","date_gmt":"2019-08-29T08:09:10","guid":{"rendered":"https:\/\/www.devopsschool.com\/blog\/?p=6429"},"modified":"2022-05-25T07:32:58","modified_gmt":"2022-05-25T07:32:58","slug":"how-to-delete-remove-clean-existing-corrupted-or-old-kubeadm-kubernetes-clusters-setup","status":"publish","type":"post","link":"https:\/\/www.devopsschool.com\/blog\/how-to-delete-remove-clean-existing-corrupted-or-old-kubeadm-kubernetes-clusters-setup\/","title":{"rendered":"How to delete\/remove\/clean existing corrupted or old kubeadm kubernetes clusters setup?"},"content":{"rendered":"\n<p><strong>RHEL \/ Centos<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-1\" data-shcb-language-name=\"PHP\" data-shcb-language-slug=\"php\"><span><code class=\"hljs language-php\">$ docker container prune\n$ docker stop $(docker ps -a -q)\r\n$ docker rm $(docker ps -a -q)\n$ systemctl stop kubelet\n$ systemctl stop docker\n$ find \/<span class=\"hljs-keyword\">var<\/span>\/lib\/kubelet | xargs -n <span class=\"hljs-number\">1<\/span> findmnt -n -t tmpfs -o TARGET -T | uniq | xargs -r umount -v\n$ rm -r -f \/etc\/kubernetes \/<span class=\"hljs-keyword\">var<\/span>\/lib\/kubelet \/<span class=\"hljs-keyword\">var<\/span>\/lib\/etcd\n$ kubeadm reset \n$ iptables --flush\n$ sudo rm -rf ~\/.kube\n<span class=\"hljs-comment\"># Reboot A Server<\/span>\n$ systemctl start docker\n$ systemctl enable --now kubelet<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-1\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PHP<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">php<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p><strong>Ubuntu<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-2\" data-shcb-language-name=\"JavaScript\" data-shcb-language-slug=\"javascript\"><span><code class=\"hljs language-javascript\">\n$ kubeadm reset\n$ sudo apt-<span class=\"hljs-keyword\">get<\/span> purge kubeadm kubectl kubelet kubernetes-cni kube*   \n$ sudo apt-<span class=\"hljs-keyword\">get<\/span> autoremove  \n$ sudo rm -rf ~\/.kube\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-2\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">JavaScript<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">javascript<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p><strong>How to remove or cleanup kubernetes worker nodes in Centos 7?<\/strong><\/p>\n\n\n\n<script src=\"https:\/\/gist.github.com\/devops-school\/f879dc1ac0a0fb1646500afe0f699fce.js\"><\/script>\n\n\n<pre class=\"wp-block-code\"><span><code class=\"hljs\"><\/code><\/span><\/pre>\n\n\n<p><strong>How to remove or cleanup kubernetes worker nodes in Ubuntu?<\/strong><\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-3\" data-shcb-language-name=\"JavaScript\" data-shcb-language-slug=\"javascript\"><span><code class=\"hljs language-javascript\">$ kubeadm reset\n$ sudo apt-<span class=\"hljs-keyword\">get<\/span> purge kubeadm kubectl kubelet kubernetes-cni kube*   \n$ sudo apt-<span class=\"hljs-keyword\">get<\/span> autoremove  \n$ sudo rm -rf ~\/.kube<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-3\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">JavaScript<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">javascript<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n<div class=\"epyt-gallery\" data-currpage=\"1\" id=\"epyt_gallery_91524\"><figure class=\"wp-block-embed wp-block-embed-youtube is-type-video is-provider-youtube epyt-figure\"><div class=\"wp-block-embed__wrapper\"><iframe loading=\"lazy\"  id=\"_ytid_82078\"  width=\"760\" height=\"427\"  data-origwidth=\"760\" data-origheight=\"427\" src=\"https:\/\/www.youtube.com\/embed\/?enablejsapi=1&#038;autoplay=0&#038;cc_load_policy=0&#038;cc_lang_pref=&#038;iv_load_policy=1&#038;loop=0&#038;rel=1&#038;fs=1&#038;playsinline=0&#038;autohide=2&#038;theme=dark&#038;color=red&#038;controls=1&#038;disablekb=0&#038;\" class=\"__youtube_prefs__  no-lazyload\" title=\"YouTube player\"  data-epytgalleryid=\"epyt_gallery_91524\"  allow=\"fullscreen; accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen data-no-lazy=\"1\" data-skipgform_ajax_framebjll=\"\"><\/iframe><\/div><\/figure><div class=\"epyt-gallery-list\"><div>Sorry, there was a YouTube error.<\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>RHEL \/ Centos Ubuntu How to remove or cleanup kubernetes worker nodes in Centos 7? How to remove or cleanup kubernetes worker nodes in Ubuntu?<\/p>\n","protected":false},"author":1,"featured_media":12764,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","_joinchat":[],"footnotes":""},"categories":[4859],"tags":[4221,5459,6036,95,5449,4947,4860,230],"class_list":["post-6429","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-kubernetes","tag-clean","tag-cluster","tag-delet","tag-devops","tag-devopsschool","tag-kubeadm","tag-kubernetes","tag-setup"],"_links":{"self":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/6429","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/comments?post=6429"}],"version-history":[{"count":8,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/6429\/revisions"}],"predecessor-version":[{"id":30120,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/6429\/revisions\/30120"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/media\/12764"}],"wp:attachment":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/media?parent=6429"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/categories?post=6429"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/tags?post=6429"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}