如何向 Kubernetes nginx (GKE) 提供 letsencrypt 证书？

Question

我正在学习 Google 云平台，试图实现我的第一个项目，但在教程中迷路了。我一直在尝试实施 nginx 入口。我的入口卡在 CrashLoopBackoff 中，日志显示以下错误。

我知道如何使用 DockerCompose 完成此任务，但这里不知道。

我从哪里开始？

1#1: cannot load certificate "/etc/letsencrypt/live/blah.com/fullchain.pem": BIO_new_file() failed (SSL: error:02001002:system library:fopen:No such file or directory:fopen('/etc/letsencrypt/live/blah.com/fullchain.pem','r') error:2006D080:BIO routines:BIO_new_file:no such file)
nginx: [emerg] cannot load certificate "/etc/letsencrypt/live/blah.com/fullchain.pem": BIO_new_file() failed (SSL: error:02001002:system library:fopen:No such file or directory:fopen('/etc/letsencrypt/live/blah.com/fullchain.pem','r') error:2006D080:BIO routines:BIO_new_file:no such file)

我还不确定这是否有用，但我已经设置了证书颁发机构服务 (https://cloud.google.com/certificate-authority-service/docs/best-practices)。

Answer 1

与其使用它并遵循 GCP CA 设置，我建议使用 cert-manager 和入口。

Cert-manager 将从 let's-encrypt CA , cert-manager 获得 TLS 证书将在 k8s 中创建秘密并将已验证的证书存储到秘密中。

您可以根据主机在入口处附加秘密并使用它。

Cert-manager installation

YAML 示例：

apiVersion: cert-manager.io/v1alpha2
kind: ClusterIssuer
metadata:
  name: cluster-issuer-name
spec:
  acme:
    server: https://acme-v02.api.letsencrypt.org/directory
    email: harsh@example.com
    privateKeySecretRef:
      name: secret-name
    solvers:
    - http01:
        ingress:
          class: nginx-class-name
---
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  annotations:
    kubernetes.io/ingress.class: nginx-class-name
    cert-manager.io/cluster-issuer: cluster-issuer-name
    nginx.ingress.kubernetes.io/rewrite-target: /
  name: example-ingress
spec:
  rules:
  - host: sub.example.com
    http:
      paths:
      - path: /api
        backend:
          serviceName: service-name
          servicePort: 80
  tls:
  - hosts:
    - sub.example.com
    secretName: secret-name

您可以阅读此博客作为参考：https://medium.com/@harsh.manvar111/kubernetes-nginx-ingress-and-cert-manager-ssl-setup-c82313703d0d

如何向 Kubernetes nginx (GKE) 提供 letsencrypt 证书？

How do I present letsencrypt certificates to Kubernetes nginx (GKE)?

google-cloud-platform

lets-encrypt