{"id":16,"date":"2026-04-05T13:35:41","date_gmt":"2026-04-05T13:35:41","guid":{"rendered":"https:\/\/lasstecsolutions.com\/kubernetes-manutencao-onprem-cloud-upgrades\/"},"modified":"2026-04-05T13:35:41","modified_gmt":"2026-04-05T13:35:41","slug":"kubernetes-manutencao-onprem-cloud-upgrades","status":"publish","type":"post","link":"https:\/\/lasstecsolutions.com\/?p=16","title":{"rendered":"Manuten\u00e7\u00e3o de Kubernetes on\u2011prem e na nuvem: upgrades, etcd e o custo invis\u00edvel"},"content":{"rendered":"<p>O cluster Kubernetes \u00e9 frequentemente vendido como destino final de moderniza\u00e7\u00e3o. Na opera\u00e7\u00e3o, ele \u00e9 um sistema distribu\u00eddo que exige patching, capacidade planejada e continuidade de conhecimento no time \u2014 sob pena de incidentes em hor\u00e1rios inconvenientes.<\/p>\n<h2>On\u2011premises<\/h2>\n<p><strong>Upgrades de control plane<\/strong> coordenados com janela de manuten\u00e7\u00e3o, valida\u00e7\u00e3o de CNI e CSI, e compatibilidade com SO dos n\u00f3s. <strong>etcd<\/strong> como ponto sens\u00edvel: backup e restaura\u00e7\u00e3o testados de verdade, n\u00e3o s\u00f3 job agendado \u201cverde\u201d. <strong>Hardware<\/strong> heterog\u00eaneo e firmware desatualizado geram falhas dif\u00edceis de correlacionar com m\u00e9tricas de aplica\u00e7\u00e3o.<\/p>\n<h2>Na nuvem gerenciada<\/h2>\n<p>Menos peso em control plane, mas <strong>node groups<\/strong>, <strong>add\u2011ons<\/strong>, <strong>quotas<\/strong> e <strong>IAM<\/strong> continuam sob responsabilidade do cliente. Vers\u00f5es deprecadas de API <code>extensions\/v1beta1<\/code> ainda aparecem em manifests antigos e quebram upgrades silenciosamente at\u00e9 o pr\u00f3ximo deploy.<\/p>\n<h2>Investimento em plataforma<\/h2>\n<p>Runbooks, simulacros de disaster recovery, ownership claro de cluster per team vs plataforma central, e FinOps para workloads que poderiam ser autoscaled ou movidos para modelo mais barato. Manuten\u00e7\u00e3o n\u00e3o \u00e9 overhead \u2014 \u00e9 parte do produto interno de plataforma.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Vers\u00f5es skew, certificados expirados e storage CSI: o trabalho cont\u00ednuo depois que o cluster \u201cfoi entregue\u201d.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[32,31,33,5],"class_list":["post-16","post","type-post","status-publish","format-standard","hentry","category-sem-categoria","tag-cloud","tag-kubernetes","tag-on-premises","tag-sre"],"_links":{"self":[{"href":"https:\/\/lasstecsolutions.com\/index.php?rest_route=\/wp\/v2\/posts\/16","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lasstecsolutions.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lasstecsolutions.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lasstecsolutions.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lasstecsolutions.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=16"}],"version-history":[{"count":0,"href":"https:\/\/lasstecsolutions.com\/index.php?rest_route=\/wp\/v2\/posts\/16\/revisions"}],"wp:attachment":[{"href":"https:\/\/lasstecsolutions.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=16"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lasstecsolutions.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=16"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lasstecsolutions.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=16"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}