[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"skill:01M6EEJS7JPTX1AF84RXNZ6DTA":3,"skill-same:01M6EEJS7JPTX1AF84RXNZ6DTA":47},{"skillNo":4,"name":5,"nameZh":6,"description":6,"descriptionZh":6,"repositoryFullName":7,"ownerLogin":8,"ownerAvatarUrl":9,"ownerAccountNo":10,"ownerDisplayName":11,"repositoryNo":12,"starsCount":13,"licenseSpdxId":14,"licenseFileUrl":6,"sourceHtmlUrl":15,"categories":16,"keywords":17,"publishedAt":20,"linkOnly":21,"markdownContent":22,"markdownBody":22,"frontMatter":23,"refName":24,"commitSha":25,"skillDirectory":26,"forksCount":27,"repositoryHtmlUrl":28,"repositoryHomepageUrl":29,"ownerHtmlUrl":30,"ownerBlogUrl":6,"ownerDescription":31,"updatedAt":32,"install":33,"resources":46},"01M6EEJS7JPTX1AF84RXNZ6DTA","cert-manager",null,"ComeOnOliver\u002Fskillshub","ComeOnOliver","https:\u002F\u002Favatars.githubusercontent.com\u002Fu\u002F43215937?v=4","01M6E5JNFECJAAVFE0W7SMWWD2","Haoran Shu","01M6E5JNNDQS7AJZDYFQ8TPZCK",67,"MIT","https:\u002F\u002Fgithub.com\u002FComeOnOliver\u002Fskillshub\u002Fblob\u002Fmain\u002Fskills\u002FTerminalSkills\u002Fskills\u002Fcert-manager\u002FSKILL.md",[],[18,19],"cert manager","cert","2026-11-10 10:12:30",false,"# cert-manager\n\ncert-manager automates the management and issuance of TLS certificates in Kubernetes.\n\n## Installation\n\n```bash\n# Install cert-manager with Helm\nhelm repo add jetstack https:\u002F\u002Fcharts.jetstack.io\nhelm repo update\n\nhelm install cert-manager jetstack\u002Fcert-manager \\\n  --namespace cert-manager \\\n  --create-namespace \\\n  --set crds.enabled=true \\\n  --set prometheus.enabled=true\n\n# Verify\nkubectl get pods -n cert-manager\ncmctl check api\n```\n\n## ClusterIssuers\n\n```yaml\n# issuers\u002Fletsencrypt-staging.yaml — Let's Encrypt staging issuer for testing\napiVersion: cert-manager.io\u002Fv1\nkind: ClusterIssuer\nmetadata:\n  name: letsencrypt-staging\nspec:\n  acme:\n    server: https:\u002F\u002Facme-staging-v02.api.letsencrypt.org\u002Fdirectory\n    email: admin@example.com\n    privateKeySecretRef:\n      name: letsencrypt-staging-key\n    solvers:\n      - http01:\n          ingress:\n            class: nginx\n```\n\n```yaml\n# issuers\u002Fletsencrypt-prod.yaml — Let's Encrypt production issuer\napiVersion: cert-manager.io\u002Fv1\nkind: ClusterIssuer\nmetadata:\n  name: letsencrypt-prod\nspec:\n  acme:\n    server: https:\u002F\u002Facme-v02.api.letsencrypt.org\u002Fdirectory\n    email: admin@example.com\n    privateKeySecretRef:\n      name: letsencrypt-prod-key\n    solvers:\n      - http01:\n          ingress:\n            class: nginx\n      - dns01:\n          cloudDNS:\n            project: my-gcp-project\n          selector:\n            dnsZones:\n              - \"example.com\"\n```\n\n```yaml\n# issuers\u002Fdns01-route53.yaml — DNS-01 solver with AWS Route 53\napiVersion: cert-manager.io\u002Fv1\nkind: ClusterIssuer\nmetadata:\n  name: letsencrypt-dns\nspec:\n  acme:\n    server: https:\u002F\u002Facme-v02.api.letsencrypt.org\u002Fdirectory\n    email: admin@example.com\n    privateKeySecretRef:\n      name: letsencrypt-dns-key\n    solvers:\n      - dns01:\n          route53:\n            region: us-east-1\n            hostedZoneID: Z1234567890\n```\n\n## Certificate Resources\n\n```yaml\n# certs\u002Fwildcard-cert.yaml — Wildcard certificate for domain\napiVersion: cert-manager.io\u002Fv1\nkind: Certificate\nmetadata:\n  name: wildcard-example-com\n  namespace: default\nspec:\n  secretName: wildcard-example-com-tls\n  issuerRef:\n    name: letsencrypt-prod\n    kind: ClusterIssuer\n  commonName: \"*.example.com\"\n  dnsNames:\n    - \"example.com\"\n    - \"*.example.com\"\n  duration: 2160h    # 90 days\n  renewBefore: 360h  # 15 days before expiry\n  privateKey:\n    algorithm: ECDSA\n    size: 256\n```\n\n```yaml\n# certs\u002Finternal-ca.yaml — Self-signed CA for internal services\napiVersion: cert-manager.io\u002Fv1\nkind: ClusterIssuer\nmetadata:\n  name: selfsigned-issuer\nspec:\n  selfSigned: {}\n---\napiVersion: cert-manager.io\u002Fv1\nkind: Certificate\nmetadata:\n  name: internal-ca\n  namespace: cert-manager\nspec:\n  isCA: true\n  commonName: internal-ca\n  secretName: internal-ca-secret\n  issuerRef:\n    name: selfsigned-issuer\n    kind: ClusterIssuer\n  privateKey:\n    algorithm: ECDSA\n    size: 256\n---\napiVersion: cert-manager.io\u002Fv1\nkind: ClusterIssuer\nmetadata:\n  name: internal-ca-issuer\nspec:\n  ca:\n    secretName: internal-ca-secret\n```\n\n## Ingress Integration\n\n```yaml\n# ingress\u002Fweb-ingress.yaml — Ingress with automatic TLS via annotation\napiVersion: networking.k8s.io\u002Fv1\nkind: Ingress\nmetadata:\n  name: web-app\n  annotations:\n    cert-manager.io\u002Fcluster-issuer: letsencrypt-prod\nspec:\n  ingressClassName: nginx\n  tls:\n    - hosts:\n        - app.example.com\n        - api.example.com\n      secretName: app-example-com-tls\n  rules:\n    - host: app.example.com\n      http:\n        paths:\n          - path: \u002F\n            pathType: Prefix\n            backend:\n              service:\n                name: web-app\n                port:\n                  number: 80\n    - host: api.example.com\n      http:\n        paths:\n          - path: \u002F\n            pathType: Prefix\n            backend:\n              service:\n                name: api-service\n                port:\n                  number: 8080\n```\n\n## Istio Gateway Integration\n\n```yaml\n# certs\u002Fistio-cert.yaml — Certificate for Istio Gateway\napiVersion: cert-manager.io\u002Fv1\nkind: Certificate\nmetadata:\n  name: gateway-cert\n  namespace: istio-system\nspec:\n  secretName: gateway-tls\n  issuerRef:\n    name: letsencrypt-prod\n    kind: ClusterIssuer\n  dnsNames:\n    - \"app.example.com\"\n    - \"api.example.com\"\n```\n\n## Common Commands\n\n```bash\n# Check certificate status\nkubectl get certificates -A\nkubectl describe certificate wildcard-example-com\n\n# View certificate details\ncmctl status certificate wildcard-example-com\n\n# Manually trigger renewal\ncmctl renew wildcard-example-com\n\n# Check challenges and orders\nkubectl get challenges -A\nkubectl get orders -A\n\n# Inspect certificate secret\nkubectl get secret wildcard-example-com-tls -o jsonpath='{.data.tls\\.crt}' | base64 -d | openssl x509 -text -noout\n\n# Troubleshoot\nkubectl logs -n cert-manager deploy\u002Fcert-manager -f\ncmctl check api\n```\n",{},"main","def8531e65114c0fca8fb8551c1871ee0eed705c","skills\u002FTerminalSkills\u002Fskills\u002Fcert-manager",24,"https:\u002F\u002Fgithub.com\u002FComeOnOliver\u002Fskillshub","https:\u002F\u002Fskillshub.wtf","https:\u002F\u002Fgithub.com\u002FComeOnOliver","AI & Blockchain Engineer\r\n","2026-06-24 22:07:19",{"source":7,"skillName":5,"commands":34,"prompt":44,"zipAvailable":45},[35,38,41],{"tool":36,"command":37},"npx","npx skills add 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