Ssl 此证书缺少“主机”字段。这使得它不适合网站

当我执行此命令以生成kubernetes证书时：

cfssl gencert -ca=ca.pem -ca-key=ca-key.pem \
-config=ca-config.json \
-profile=kubernetes \
kubernetes-csr.json | cfssljson -bare kubernetes

cfssl采用的原因说明：

[root@iZuf63refzweg1d9dh94t8Z ssl]# cfssl gencert -ca=ca.pem -ca-key=ca-key.pem \
> -config=ca-config.json \
> -profile=kubernetes \
> kubernetes-csr.json | cfssljson -bare kubernetes
2019/08/25 20:02:12 [INFO] generate received request
2019/08/25 20:02:12 [INFO] received CSR
2019/08/25 20:02:12 [INFO] generating key: rsa-2048
2019/08/25 20:02:13 [INFO] encoded CSR
2019/08/25 20:02:13 [INFO] signed certificate with serial number 540759253485135214776496461610290604881680785507
2019/08/25 20:02:13 [WARNING] This certificate lacks a "hosts" field. This makes it unsuitable for
websites. For more information see the Baseline Requirements for the Issuance and Management
of Publicly-Trusted Certificates, v.1.1.6, from the CA/Browser Forum (https://cabforum.org);
specifically, section 10.2.3 ("Information Requirements").

这是我的kuberneteskubernetes-csr.json配置：

{
    "CN": "kubernetes",
    "hosts": [
      "127.0.0.1",
      "172.19.104.230",
      "172.19.150.82",
      "172.19.104.231"
    ],
    "key": {
        "algo": "rsa",
        "size": 2048
    },
    "names": [
        {
            "C": "CN",
            "ST": "BeiJing",
            "L": "BeiJing",
            "O": "k8s",
            "OU": "System"
        }
    ]
}

---

显然，它包含hosts字段。我正在使用cfssl版本1.2。这是一个错误吗？

将cfssl版本从v1.2更新到v1.3.4最新版本：

go get -u github.com/cloudflare/cfssl/cmd/cfssl

看起来是这样。我建议您尝试更新版本的cfssl。1.2快2岁半了。。。