kubeadm init

#查看错误
journalctl -xeu kubelet

#配置pod镜像
/etc/systemd/system/kubelet.service.d/10-kubeadm.conf

#查看证书
cd /etc/kubernetes/pki
openssl x509 -noout -text -in apiserver.crt

Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number: 3365178057074645123 (0x2eb3839d09df9883)
    Signature Algorithm: sha256WithRSAEncryption
        Issuer: CN=kubernetes
        Validity
            Not Before: Dec 10 13:03:03 2017 GMT
            Not After : Dec 10 13:03:03 2018 GMT
        Subject: CN=kube-apiserver
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                Public-Key: (2048 bit)
                Modulus:
                    00:df:f5:4b:54:b8:06:48:ae:4d:a7:20:aa:4a:2c:
                    8c:41:18:6e:e9:42:7b:d1:3e:51:74:d1:95:67:fe:
                    ec:39:da:be:aa:40:05:ae:51:af:b3:b4:73:fe:71:
                    ea:de:3a:1e:b2:04:61:64:28:c4:8b:de:6c:f2:63:
                    4d:e5:4b:47:fd:c3:b7:d3:0d:e9:e1:89:3b:de:13:
                    35:34:a9:54:23:3b:22:ef:55:d9:0a:87:ba:38:14:
                    42:67:e3:a1:a3:ac:e0:f6:9e:8a:e3:a2:ff:db:ef:
                    90:39:ce:b5:56:a5:fd:4b:21:75:fa:72:eb:2b:d3:
                    53:6b:10:dc:fe:bb:6c:c0:65:3d:81:90:ea:99:dd:
                    fd:1c:50:94:67:ad:57:00:8f:d4:86:9d:8d:53:6b:
                    fa:e8:4d:a2:5e:d9:86:af:df:17:7c:97:16:09:52:
                    eb:94:ba:eb:d4:4e:ed:88:10:de:e7:43:23:31:97:
                    fa:ee:0f:c8:20:22:fa:5f:37:b3:39:90:fc:0b:93:
                    f8:35:99:fb:5c:63:44:72:f8:4f:16:54:c5:f7:aa:
                    2d:fb:08:98:9c:38:76:f0:8b:a2:24:3b:05:4f:e6:
                    d9:31:0f:fc:f7:25:e5:c9:ee:99:39:76:c0:0a:3d:
                    34:dc:ea:3f:5e:3e:f2:19:c7:be:00:ba:6d:e9:1a:
                    cf:19
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Key Usage: critical
                Digital Signature, Key Encipherment
            X509v3 Extended Key Usage: 
                TLS Web Server Authentication
            X509v3 Subject Alternative Name: 
                DNS:lee2, DNS:kubernetes, DNS:kubernetes.default, DNS:kubernetes.default.svc, DNS:kubernetes.default.svc.cluster.local, IP Address:10.96.0.1, IP Address:192.168.0.111
    Signature Algorithm: sha256WithRSAEncryption
         ba:37:97:62:d3:45:d9:67:9a:01:67:70:e3:41:e4:47:64:17:
         16:ca:b8:6e:69:9c:8d:1b:e9:cf:a9:a8:2e:97:c1:45:d8:c7:
         d7:01:2b:5a:81:83:ee:48:0d:eb:32:b4:85:53:de:e1:c2:5e:
         1e:7d:33:e2:92:19:41:26:fe:d2:91:96:ad:fa:cb:ac:80:3e:
         0d:c2:a6:94:b9:db:f8:48:2c:f7:48:76:ed:2c:d2:d1:fd:34:
         a9:5e:3c:8d:cf:e2:44:93:e9:16:d4:92:ab:44:4d:b1:e3:58:
         a0:8d:70:59:af:92:12:d2:37:04:fa:f1:45:bb:fd:56:a1:d1:
         27:29:e2:d6:0b:53:0c:88:e2:1d:21:2e:ce:64:33:ff:0b:1c:
         97:0e:e6:f8:9f:52:18:56:9b:06:7e:c4:e1:e9:9f:42:eb:21:
         6e:a4:db:71:fc:e6:a7:3f:e5:13:c0:b3:e4:ab:16:c2:cc:21:
         05:b1:b7:82:c8:ba:1d:73:a9:b6:bc:b8:5a:ba:8d:96:3d:c1:
         b6:39:a0:e7:ac:77:a6:9f:9b:93:15:42:aa:cc:a3:9e:19:fc:
         6f:f6:eb:7a:8c:06:b5:85:6f:3d:fb:32:0c:7b:8c:b2:2c:62:
         53:be:e8:8e:8b:3f:28:53:d8:6e:03:63:9c:c7:f7:76:6b:10:
         be:bd:3c:40