Traefik 使用 DEFAULT CERT 而不是使用 Let's Encrypt 通配符证书

Question

我尝试设置 Traefik 以使用 DNS 质询从 Let's Encrypt 获取证书，并使用此证书保护 whoami 应用程序。我设法获得了证书（很好地存在于 acme.json 文件中），但我的 IngressRoute 没有将这些证书用于路由。

我的集群是一个 K3D 集群。 我从官方 Helm Chart 部署 Traefik v2： helm install tr​​aefik traefik/traefik -f traefik-values.yaml

我为图表定义了这些值：

additionalArguments:
  - --log.level=TRACE
  - --certificatesresolvers.le.acme.email=<MY_EMAIL>
  - --certificatesresolvers.le.acme.caServer=https://acme-staging-v02.api.letsencrypt.org/directory
  - --certificatesresolvers.le.acme.dnschallenge=true
  - --certificatesresolvers.le.acme.dnschallenge.provider=route53
  - --certificatesresolvers.le.acme.dnschallenge.delayBeforeCheck=60
  - --certificatesresolvers.le.acme.dnschallenge.resolvers=8.8.8.8:53
  - --certificatesresolvers.le.acme.storage=/data/acme.json
  - --entrypoints.web.http.redirections.entryPoint.to=:443
  - --entrypoints.web.http.redirections.entryPoint.scheme=https
persistence:
  enabled: true
  path: /data
env:
  - name: AWS_REGION
    value: eu-west-1
  - name: AWS_HOSTED_ZONE_ID
    value: <MY_AWS_HOSTED_ZONE_ID>
  - name: AWS_ACCESS_KEY_ID
    value: <MY_AWS_ACCESS_KEY_ID>
  - name: AWS_SECRET_ACCESS_KEY
    value: <MY_AWS_SECRET_ACCESS_KEY>

whoami 应用的部署、服务和 IngressRoute：

kind: Deployment
apiVersion: apps/v1
metadata:
  name: whoami
spec:
  replicas: 1
  selector:
    matchLabels:
      app: whoami
  template:
    metadata:
      labels:
        app: whoami
    spec:
      containers:
        - name: whoami
          image: containous/whoami:v1.5.0
---
apiVersion: v1
kind: Service
metadata:
  name: whoami
  labels:
    app: whoami
spec:
  type: ClusterIP
  ports:
    - port: 80
      name: whoami
  selector:
    app: whoami
---
apiVersion: traefik.containo.us/v1alpha1
kind: IngressRoute
metadata:
  name: app-tls
spec:
  entryPoints:
    - websecure
  routes:
    - kind: Rule
      match: Host(`test.mydomain.com`) || Path(`/whoami`)
      services:
        - name: whoami
          port: 80
  tls:
    certResolver: le
    domains:
      - main: "*.test.mydomain.com"

在日志中，我可以看到：

time="2020-09-24T14:04:04Z" level=debug msg="legolog: [INFO] acme: Registering account for MY_EMAIL"
time="2020-09-24T14:04:04Z" level=debug msg="legolog: [INFO] [*.test.mydomain.com] acme: Obtaining bundled SAN certificate"
time="2020-09-24T14:04:04Z" level=debug msg="legolog: [INFO] [*.test.mydomain.com] AuthURL: https://acme-staging-v02.api.letsencrypt.org/acme/authz-v3/118300931"
time="2020-09-24T14:04:04Z" level=debug msg="legolog: [INFO] [*.test.mydomain.com] acme: use dns-01 solver"
time="2020-09-24T14:04:04Z" level=debug msg="legolog: [INFO] [*.test.mydomain.com] acme: Preparing to solve DNS-01"
time="2020-09-24T14:04:05Z" level=debug msg="legolog: [INFO] Wait for route53 [timeout: 2m0s, interval: 4s]"
time="2020-09-24T14:05:16Z" level=debug msg="legolog: [INFO] [*.test.mydomain.com] acme: Trying to solve DNS-01"
time="2020-09-24T14:05:16Z" level=debug msg="legolog: [INFO] [*.test.mydomain.com] acme: Checking DNS record propagation using [8.8.8.8:53]"
time="2020-09-24T14:05:20Z" level=debug msg="legolog: [INFO] Wait for propagation [timeout: 2m0s, interval: 4s]"
time="2020-09-24T14:06:24Z" level=debug msg="legolog: [INFO] [*.test.mydomain.com] The server validated our request"
time="2020-09-24T14:06:24Z" level=debug msg="legolog: [INFO] [*.test.mydomain.com] acme: Cleaning DNS-01 challenge"
time="2020-09-24T14:06:25Z" level=debug msg="legolog: [INFO] Wait for route53 [timeout: 2m0s, interval: 4s]"
time="2020-09-24T14:07:21Z" level=debug msg="legolog: [INFO] [*.test.mydomain.com] acme: Validations succeeded; requesting certificates"
time="2020-09-24T14:07:23Z" level=debug msg="legolog: [INFO] [*.test.mydomain.com] Server responded with a certificate."

然后：

time="2020-09-24T14:07:24Z" level=debug msg="Looking for provided certificate(s) to validate [\"*.test.mydomain.com\"]..." providerName=le.acme
time="2020-09-24T14:07:24Z" level=debug msg="No ACME certificate generation required for domains [\"*.test.mydomain.com\"]." providerName=le.acme

当我从浏览器访问 localhost/whoami 时，我可以看到 whoami 应用程序，但使用的证书是 Traefik 的默认证书。 非通配符证书的问题是一样的。

为什么我的路由没有使用 LE 证书？

提前感谢您的帮助。

Answer 1

我刚刚将我的网站从 new.example.com 移动到 example.com，该网站链接到托管在不同服务器上的旧版本网站。

traefik 使用的是默认证书，而不是自动的 Let's encrypt 证书。 dns记录更改后的一个小时内，它才开始使用自动证书。我还没有更新配置。我认为这可能与 traefik 的 github 上发布的 this 和 this 问题有关。

如果它实际上与“chicken-and-egg problem as the domain shouldn't be moved to the new server before the keys work, and keys can't be requested before the domain works”有关，我建议在 dns 更新后 24 小时内使用user-defined certificates。那么回退到自动证书应该是安全的。

一些细节

我使用了文档中的acme configuration：

certificatesResolvers:
  myresolver:
    acme:
      email: your-email@example.com
      storage: acme.json
      httpChallenge:
        # used during the challenge
        entryPoint: web

奇怪的是/etc/traefik/acme/acme.json 包含私钥，虽然我不知道它应该如何工作。

{
  "letsencrypt": {
    "Account": {
      "Email": "example@mail.com",
      "Registration": {
        "body": {
          "status": "valid",
          "contact": [
            "mailto:example@mail.com"
          ]
        },
        "uri": "https://acme-v02.api.letsencrypt.org/acme/acct/*******"
      },
      "PrivateKey": "*******************************************",
      "KeyType": "4096"
    },
    "Certificates": null
  }
}

另外，我多次使用 docker 并重新启动了容器。上次重启后它才开始工作。