我通过创建自签名证书使用SSL运行Elastic Search实例。通过elastic包从R连接时遇到问题。
这是我的进步:

启用S​​SL后,当我尝试连接到Elastic Search实例时,出现以下错误:

$ curl -u $USER:$PASS 'https://localhost:9200/_cat/health?v'
curl: (60) Peer certificate cannot be authenticated with known CA certificates
More details here: http://curl.haxx.se/docs/sslcerts.html

curl performs SSL certificate verification by default, using a "bundle"
 of Certificate Authority (CA) public keys (CA certs). If the default
 bundle file isn't adequate, you can specify an alternate file
 using the --cacert option.
If this HTTPS server uses a certificate signed by a CA represented in
 the bundle, the certificate verification probably failed due to a
 problem with the certificate (it might be expired, or the name might
 not match the domain name in the URL).
If you'd like to turn off curl's verification of the certificate, use
 the -k (or --insecure) option.

显然,此问题是由于证书不受信任。一种方法是将自签名证书添加到信任库中,但我不知道它在哪里。另一种方法是通过添加-k来跳过证书验证。但是我想执行它。
因此,我找到了一种解决方法,只需指定root-ca.pem如下:
$ curl -u $USER:$PASS 'https://localhost:9200/_cat/health?v' --cacert /home/user/root-ca.pem
epoch      timestamp cluster     status node.total node.data shards pri relo init unassign pending_tasks max_task_wait_time active_shards_percent
1479462058 03:40:58  es-cluster yellow          1         1    365 365    0    0      364             0                  -                 50.1%

然后另一个SO问题帮助我创建了一个文件~/.curlrc,如下所示:
$ cat ~/.curlrc
capath=/home/user/

在那之后,我什至不必指定证书。
$ curl -u $USER:$PASS 'https://localhost:9200/_cat/health?v'
epoch      timestamp cluster     status node.total node.data shards pri relo init unassign pending_tasks max_task_wait_time active_shards_percent
1479462172 03:42:52  es-cluster yellow          1         1    365 365    0    0      364             0                  -                 50.1%

到目前为止,一切都很好,但是现在当我尝试从R连接到Elastic Search时。我收到以下错误。
> library(elastic)
> connect(es_base = "https://localhost", es_port = 9200, es_user = USER,   es_pwd = PASS)
Error:
  Failed to connect to https://127.0.0.1:9200
  Remember to start Elasticsearch before connecting

日志报告unknown_ca错误。 elastic R包可能正在使用httr / curl进行连接,但是我不知道如何指定证书。
我提到了解决方案here,但它适用于RCurl

请提出建议。

版本:
  • R:3.3.1
  • R( flex 包装):0.7.8
  • flex 搜索:2.4.1
  • 操作系统:RHEL 6.7
  • 最佳答案

    正如@sckott所建议的那样,我必须设置cainfo参数。
    以下是在我的情况下有效的方法:

    library(elastic)
    library(httr)
    set_config(config(cainfo = "/home/user/root-ca.pem"))
    connect(es_base = "https://localhost", es_port = 9200, es_user = USER,   es_pwd = PASS)
    

    谢谢Sckott。

    关于r - 使用来自Elastic R包的自签名证书连接到Secured Elastic Search,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/40674437/

    10-12 22:53