{"id":31787,"date":"2022-11-16T16:34:40","date_gmt":"2022-11-16T16:34:40","guid":{"rendered":"https:\/\/www.devopsschool.com\/blog\/?p=31787"},"modified":"2022-12-23T05:45:31","modified_gmt":"2022-12-23T05:45:31","slug":"cert-manager-generate-tls-certificates-using-self-signed-issuers","status":"publish","type":"post","link":"https:\/\/www.devopsschool.com\/blog\/cert-manager-generate-tls-certificates-using-self-signed-issuers\/","title":{"rendered":"Cert Manager: Generate TLS Certificates Using Self Signed Issuers"},"content":{"rendered":"\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-1\" data-shcb-language-name=\"JavaScript\" data-shcb-language-slug=\"javascript\"><span><code class=\"hljs language-javascript\">apiVersion: cert-manager.io\/v1\n<span class=\"hljs-attr\">kind<\/span>: ClusterIssuer\n<span class=\"hljs-attr\">metadata<\/span>:\n  name: letsencrypt-prod\n<span class=\"hljs-attr\">spec<\/span>:\n  selfSigned: {}\n---\napiVersion: cert-manager.io\/v1\n<span class=\"hljs-attr\">kind<\/span>: Issuer\n<span class=\"hljs-attr\">metadata<\/span>:\n  name: letsencrypt-ca\n  <span class=\"hljs-attr\">namespace<\/span>: sandbox\n<span class=\"hljs-attr\">spec<\/span>:\n  ca:\n    secretName: letsencrypt-ca\n---\napiVersion: cert-manager.io\/v1\n<span class=\"hljs-attr\">kind<\/span>: Certificate\n<span class=\"hljs-attr\">metadata<\/span>:\n  name: letsencrypt-ca\n  <span class=\"hljs-attr\">namespace<\/span>: sandbox\n<span class=\"hljs-attr\">spec<\/span>:\n  isCA: <span class=\"hljs-literal\">true<\/span>\n  <span class=\"hljs-attr\">commonName<\/span>: osm-system\n  <span class=\"hljs-attr\">secretName<\/span>: letsencrypt-ca\n  <span class=\"hljs-attr\">issuerRef<\/span>:\n    name: letsencrypt-prod\n    <span class=\"hljs-attr\">kind<\/span>: ClusterIssuer\n    <span class=\"hljs-attr\">group<\/span>: cert-manager.io<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-1\"><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<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\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\">kubectl <span class=\"hljs-keyword\">get<\/span> secret --namespace=sandbox\nNAME                  TYPE                                  DATA   AGE\nletsencrypt-ca        kubernetes.io\/tls                     3      Xs\n\nkubectl <span class=\"hljs-keyword\">get<\/span> certificates --namespace=sandbox<\/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<h2 class=\"wp-block-heading\">Secure Ingress Resources With Cert Manager<\/h2>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n<pre class=\"wp-block-code\"><span><code class=\"hljs\">apiVersion: networking.k8s.io\/v1\r\nkind: Ingress\r\nmetadata:\r\n  name: ingress-test\r\n  annotations:\r\n    # Set up your ingress.class below (in this example, we are using nginx ingress controller)\r\n    kubernetes.io\/ingress.class: \"nginx\"\r\n    cert-manager.io\/issuer: \"letsencrypt-prod\"\r\nspec:\r\n  tls:\r\n  # Replace the DOMAIN placeholder with the correct domain name\r\n  - hosts:\r\n    - DOMAIN\r\n    secretName: letsencrypt-ca\r\n  rules:\r\n  # Replace the DOMAIN placeholder with the correct domain name\r\n  - host: DOMAIN\r\n    http:\r\n      paths:\r\n      - path: \/\r\n        pathType: Exact\r\n        backend:\r\n          service:\r\n            name: ingress-test\r\n            port:\r\n              number: 80<\/code><\/span><\/pre>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n","protected":false},"excerpt":{"rendered":"<p>Secure Ingress Resources With Cert Manager<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","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":[2],"tags":[],"class_list":["post-31787","post","type-post","status-publish","format-standard","hentry","category-uncategorised"],"_links":{"self":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/31787","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=31787"}],"version-history":[{"count":2,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/31787\/revisions"}],"predecessor-version":[{"id":31789,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/posts\/31787\/revisions\/31789"}],"wp:attachment":[{"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/media?parent=31787"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/categories?post=31787"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.devopsschool.com\/blog\/wp-json\/wp\/v2\/tags?post=31787"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}