设置 cert-manager 集成

创建 CA 密钥。

创建密钥来存储CA数据：

apiVersion: v1
kind: Secret
metadata:
  name: ca-key-pair
  namespace: <namespace>
data:
  tls.crt: <your-CA-certificate>
  tls.key: <your-CA-private-key>

为自定义CA证书添加其他证书。

If your Ops Manager TLS certificate is signed by a custom CA, the CA certificate must also contain additional certificates that allow Ops Manager Backup Daemon to download MongoDB binaries from the Internet. To create the TLS certificate(s), create a ConfigMap to hold the CA certificate:

1. Obtain the entire TLS certificate chain for Ops Manager from downloads.mongodb.com. The following openssl command outputs the certificate in the chain to your current working directory, in .crt format:

   openssl s_client -showcerts -verify 2 \
   -connect downloads.mongodb.com:443 -servername downloads.mongodb.com < /dev/null \
   | awk '/BEGIN/,/END/{ if(/BEGIN/){a++}; out="cert"a".crt"; print >out}'

2. Concatenate your CA's certificate file for Ops Manager with the entire TLS certificate chain from downloads.mongodb.com that you obtained in the previous step:

   cat <custom_ca_cert.pem> cert2.crt cert3.crt cert4.crt  >> mms-ca.crt

   注意

   • 将占位符 <custom_ca_cert.pem> 替换为您的自定义 CA 证书 PEM文件。

   • 请勿包含 cert1.crt文件，因为不应包含来自MongoDB的服务器证书。

3. 为MongoDB Ops Manager创建 ConfigMap：

   kubectl create configmap om-http-cert-ca --from-file="mms-ca.crt"

配置证书管理器CA颁发者

1. Create a CA issuer that references your CA secret:

   apiVersion: cert-manager.io/v1
   kind: Issuer
   metadata:
     name: ca-issuer
     namespace: <namespace>
   spec:
     ca:
       secretName: ca-key-pair

2. 验证发行者是否已准备就绪：

   kubectl get issuer ca-issuer

   输出中READY字段的值应为True 。

创建 CA ConfigMap

Create a ConfigMap containing your CA. It must have two fields, ca-pem and mms-ca.crt, both pointing to your CA certificate. Replace <CA-certificate> with the path to your CA certificate.

kubectl create cm ca-issuer --from-file=ca-pem=<CA-certificate> \
--from-file=mms-ca.crt=<CA-certificate>

为 MongoDB 资源创建证书

要使用生成的证书保护 MongoDB 资源，您必须为资源本身和 MongoDB 代理创建证书。

1. 创建 MongoDB 资源证书。 以下示例假设设置名称为my-replica-set的副本集有三个成员：

   注意

   spec.issuerRef.name参数引用之前创建的CA ConfigMap。

   apiVersion: cert-manager.io/v1
   kind: Certificate
   metadata:
     name: my-replica-set-certificate
     namespace: mongodb
   spec:
     dnsNames:
     - my-replica-set-0
     - my-replica-set-0.my-replica-set-svc.mongodb.svc.cluster.local
     - my-replica-set-1
     - my-replica-set-1.my-replica-set-svc.mongodb.svc.cluster.local
     - my-replica-set-2
     - my-replica-set-2.my-replica-set-svc.mongodb.svc.cluster.local
     duration: 240h0m0s
     issuerRef:
       name: ca-issuer
     renewBefore: 120h0m0s
     secretName: mdb-my-replica-set-cert
     usages:
     - server auth
     - client auth

   对于分片的集群，您必须为每个StatefulSet创建一个证书。要学习；了解有关分片集群配置的更多信息，请参阅部署分片集群。

2. 创建 MongoDB 代理证书：

   注意

   spec.issuerRef.name参数引用之前创建的CA ConfigMap。

   apiVersion: cert-manager.io/v1
   kind: Certificate
   metadata:
     name: agent-certs
     namespace: mongodb
   spec:
     commonName: automation
     dnsNames:
     - automation
     duration: 240h0m0s
     issuerRef:
       name: ca-issuer
     renewBefore: 120h0m0s
     secretName: mdb-my-replica-set-agent-certs
     usages:
     - digital signature
     - key encipherment
     - client auth
     subject:
       countries:
       - US
       localities:
       - NY
       organizationalUnits:
       - a-1635241837-m5yb81lfnrz
       organizations:
       - cluster.local-agent
       provinces:
       - NY

3. 创建 MongoDB 资源：

   注意

   如果未指定spec.security.tls.ca参数，则默认为{replica-set}-ca 。

   apiVersion: mongodb.com/v1
   kind: MongoDB
   metadata:
     name: my-replica-set
     namespace: mongodb
   spec:
     type: ReplicaSet
     members: 3
     version: 8.0.0
     opsManager:
       configMapRef:
         name: my-project
     credentials: my-credentials
     security:
       certsSecretPrefix: mdb
       authentication:
         enabled: true
         modes:
         - X509
       tls:
         ca: ca-issuer
         enabled: true

使用 TLS 为 Ops Manager 和 AppDB 创建证书

要保护 Ops Manager 资源，必须首先为 Ops Manager 和 AppDB 创建证书，然后创建 Ops Manager 资源。

1. 创建 Ops Manager 证书：

   注意

   spec.issuerRef.name参数引用之前创建的CA ConfigMap。

   apiVersion: cert-manager.io/v1
   kind: Certificate
   metadata:
     name: cert-for-ops-manager
     namespace: mongodb
   spec:
     dnsNames:
     - om-with-https-svc.mongodb.svc.cluster.local
     duration: 240h0m0s
     issuerRef:
       name: ca-issuer
     renewBefore: 120h0m0s
     secretName: mdb-om-with-https-cert
     usages:
     - server auth
     - client auth

2. 创建 AppDB 证书：

   注意

   spec.issuerRef.name参数引用之前创建的CA ConfigMap。

   apiVersion: cert-manager.io/v1
   kind: Certificate
   metadata:
     name: appdb-om-with-https-db-cert
     namespace: mongodb
   spec:
     dnsNames:
     - om-with-https-db-0
     - om-with-https-db-0.om-with-https-db-svc.mongodb.svc.cluster.local
     - om-with-https-db-1
     - om-with-https-db-1.om-with-https-db-svc.mongodb.svc.cluster.local
     - om-with-https-db-2
     - om-with-https-db-2.om-with-https-db-svc.mongodb.svc.cluster.local
     duration: 240h0m0s
     issuerRef:
       name: ca-issuer
     renewBefore: 120h0m0s
     secretName: appdb-om-with-https-db-cert
     usages:
     - server auth
     - client auth

3. 创建 Ops Manager 资源：

   apiVersion: mongodb.com/v1
   kind: MongoDBOpsManager
   metadata:
     name: om-with-https
     namespace: mongodb
   spec:
     adminCredentials: ops-manager-admin-secret
     version: "8.0.0"
     applicationDatabase:
       members: 3
       security:
         certsSecretPrefix: appdb
         tls:
           ca: ca-issuer
       version: 8.0.0-ubi8
     replicas: 1
     security:
       certsSecretPrefix: mdb
       tls:
         ca: ca-issuer