# Starting ES with TLS options **URL:** \ **Category:** Elasticsearch\ **Tags:** elastic-stack-security\ **Created:** [September 13, 2019, 5:55pm UTC](https://discuss.elastic.co/t/starting-es-with-tls-options/199468 "2019-09-13T17:55:32Z")\ **Posts on this page:** 14\ **Page:** 1
**Author:** ![NewmazN24](https://avatars.discourse-cdn.com/v4/letter/n/b77776/32.png) [@NewmazN24](https://discuss.elastic.co/u/NewmazN24)\ **Post date:** [September 13, 2019, 5:55pm UTC](https://discuss.elastic.co/t/starting-es-with-tls-options/199468/1 "2019-09-13T17:55:32Z")
Fresh install, I didn't modify any of my file except elasticsearch.yml. I do not know what I need to do, did wrong. Java is installed as well. **Addon to ES yaml** xpack.security.enabled: true xpack.security.transport.ssl.enabled: true xpack.security.transport.ssl.verification\_mode: certificate xpack.security.transport.ssl.keystore.path: /usr/share/elasticsearch/bin/elastic-certificates.p12 xpack.security.transport.ssl.truststore.path: /usr/share/elasticsearch/bin/elastic-certificates.p12 **Tried** xpack.security.transport.ssl.enabled: true xpack.security.transport.ssl.verification\_mode: certificate xpack.security.transport.ssl.keystore.path: certs/elastic-certificates.p12 xpack.security.transport.ssl.truststore.path: certs/elastic-certificates.p12 **Error** > /usr/share/elasticsearch/bin/elasticsearch > OpenJDK 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely be removed in a future release. > [2019-09-13T13:51:21,752][WARN][o.e.b.ElasticsearchUncaughtExceptionHandler] [node-1] uncaught exception in thread [main] > org.elasticsearch.bootstrap.StartupException: java.lang.RuntimeException: can not run elasticsearch as root > at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:163) ~[elasticsearch-7.3.2.jar:7.3.2] > at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:150) ~[elasticsearch-7.3.2.jar:7.3.2] > at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) ~[elasticsearch-7.3.2.jar:7.3.2] > at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:124) ~[elasticsearch-cli-7.3.2.jar:7.3.2] > at org.elasticsearch.cli.Command.main(Command.java:90) ~[elasticsearch-cli-7.3.2.jar:7.3.2] > at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:115) ~[elasticsearch-7.3.2.jar:7.3.2] > at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92) ~[elasticsearch-7.3.2.jar:7.3.2] > Caused by: java.lang.RuntimeException: can not run elasticsearch as root > at org.elasticsearch.bootstrap.Bootstrap.initializeNatives(Bootstrap.java:105) ~[elasticsearch-7.3.2.jar:7.3.2] > at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:172) ~[elasticsearch-7.3.2.jar:7.3.2] > at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:349) ~[elasticsearch-7.3.2.jar:7.3.2] > at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:159) ~[elasticsearch-7.3.2.jar:7.3.2] ---
**Author:** ![ikakavas](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ikakavas/32/34430_2.png) [@ikakavas](https://discuss.elastic.co/u/ikakavas)\ **Post date:** [September 13, 2019, 7:49pm UTC](https://discuss.elastic.co/t/starting-es-with-tls-options/199468/2 "2019-09-13T19:49:02Z")
This is unrelated to TLS ,the error you get is self explanatory: > org.elasticsearch.bootstrap.StartupException: java.lang.RuntimeException: can not run elasticsearch as root Do not run elasticsearch as root 🙂 ---
**Author:** ![NewmazN24](https://avatars.discourse-cdn.com/v4/letter/n/b77776/32.png) [@NewmazN24](https://discuss.elastic.co/u/NewmazN24)\ **Post date:** [September 16, 2019, 12:53pm UTC](https://discuss.elastic.co/t/starting-es-with-tls-options/199468/3 "2019-09-16T12:53:56Z")
Hello, So I have tried without being root. What I faced is permission denied, therefore I need to do `sudo /usr/share/elasticsearch/bin/elasticsearch / sudo systemctl start elasticsearch`. What gets me again, an issue. Since I haven't touched any other config, I am clueless as of why I would face that problem. I have launched ES as root before, however the TLS / SSL wasn't added to config file. ---
**Author:** ![mbelaloui](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mbelaloui/32/49140_2.png) [@mbelaloui](https://discuss.elastic.co/u/mbelaloui)\ **Post date:** [September 16, 2019, 1:41pm UTC](https://discuss.elastic.co/t/starting-es-with-tls-options/199468/4 "2019-09-16T13:41:06Z")
Hello NewmazN24, Can you get us the result of your `ls -la /usr/share/elasticsearch/bin/` I think this can be the elasticsearch service doesn't have the permission to read the certificate. Try to `chown -R elasticsearch:root /usr/share/elasticsearch/*` Mehdi. ---
**Author:** ![NewmazN24](https://avatars.discourse-cdn.com/v4/letter/n/b77776/32.png) [@NewmazN24](https://discuss.elastic.co/u/NewmazN24)\ **Post date:** [September 16, 2019, 1:49pm UTC](https://discuss.elastic.co/t/starting-es-with-tls-options/199468/5 "2019-09-16T13:49:26Z")
Thanks Medhi. **Before chown** > [root@localhost ~]# ls -la /usr/share/elasticsearch/bin > total 18468 > drwxr-xr-x. 2 root root 4096 Sep 16 08:36 . > drwxr-xr-x. 8 root root 201 Sep 16 09:16 .. > -rwxr-xr-x. 1 root root 1954 Sep 6 10:55 elasticsearch > -rwxr-xr-x. 1 root root 491 Sep 6 10:45 elasticsearch-certgen > -rwxr-xr-x. 1 root root 483 Sep 6 10:45 elasticsearch-certutil > -rwxr-xr-x. 1 root root 982 Sep 6 10:55 elasticsearch-cli > -rwxr-xr-x. 1 root root 433 Sep 6 10:45 elasticsearch-croneval > -rwxr-xr-x. 1 root root 2149 Sep 6 10:55 elasticsearch-env > -rwxr-xr-x. 1 root root 121 Sep 6 10:55 elasticsearch-keystore > -rwxr-xr-x. 1 root root 440 Sep 6 10:45 elasticsearch-migrate > -rwxr-xr-x. 1 root root 126 Sep 6 10:55 elasticsearch-node > -rwxr-xr-x. 1 root root 172 Sep 6 10:55 elasticsearch-plugin > -rwxr-xr-x. 1 root root 431 Sep 6 10:45 elasticsearch-saml-metadata > -rwxr-xr-x. 1 root root 438 Sep 6 10:45 elasticsearch-setup-passwords > -rwxr-xr-x. 1 root root 118 Sep 6 10:55 elasticsearch-shard > -rwxr-xr-x. 1 root root 427 Sep 6 10:45 elasticsearch-sql-cli > -rwxr-xr-x. 1 root root 18828739 Sep 6 10:45 elasticsearch-sql-cli-7.3.2.jar > -rwxr-xr-x. 1 root root 426 Sep 6 10:45 elasticsearch-syskeygen > -rwxr-xr-x. 1 root root 426 Sep 6 10:45 elasticsearch-users > -rwxr-xr-x. 1 root root 346 Sep 6 10:45 x-pack-env > -rwxr-xr-x. 1 root root 354 Sep 6 10:45 x-pack-security-env > -rwxr-xr-x. 1 root root 353 Sep 6 10:45 x-pack-watcher-env > [root@localhost ~]# ls -la /usr/share/elasticsearch > total 544 > drwxr-xr-x. 8 root root 201 Sep 16 09:16 . > drwxr-xr-x. 77 root root 4096 Sep 16 08:36 .. > drwxr-xr-x. 2 root root 4096 Sep 16 08:36 bin > drwxr-xr-x. 2 root root 66 Sep 16 09:16 certs > -rw-------. 1 root root 3451 Sep 16 09:04 elastic-certificates.p12 > -rw-------. 1 root root 2527 Sep 16 08:42 elastic-stack-ca.p12 > drwxr-xr-x. 8 root root 96 Sep 16 08:36 jdk > drwxr-xr-x. 3 root root 4096 Sep 16 08:36 lib > -rw-r--r--. 1 root root 13675 Sep 6 10:38 LICENSE.txt > drwxr-xr-x. 33 root root 4096 Sep 16 08:36 modules > -rw-rw-r--. 1 root root 502598 Sep 6 10:45 NOTICE.txt > drwxr-xr-x. 2 root root 6 Sep 6 10:55 plugins > -rw-r--r--. 1 root root 8500 Sep 6 10:38 README.textile **After chown** > [root@localhost ~]# ls -la /usr/share/elasticsearch > total 544 > drwxr-xr-x. 8 root root 201 Sep 16 09:16 . > drwxr-xr-x. 77 root root 4096 Sep 16 08:36 .. > drwxr-xr-x. 2 elasticsearch root 4096 Sep 16 08:36 bin > drwxr-xr-x. 2 elasticsearch root 66 Sep 16 09:16 certs > -rw-------. 1 elasticsearch root 3451 Sep 16 09:04 elastic-certificates.p12 > -rw-------. 1 elasticsearch root 2527 Sep 16 08:42 elastic-stack-ca.p12 > drwxr-xr-x. 8 elasticsearch root 96 Sep 16 08:36 jdk > drwxr-xr-x. 3 elasticsearch root 4096 Sep 16 08:36 lib > -rw-r--r--. 1 elasticsearch root 13675 Sep 6 10:38 LICENSE.txt > drwxr-xr-x. 33 elasticsearch root 4096 Sep 16 08:36 modules > -rw-rw-r--. 1 elasticsearch root 502598 Sep 6 10:45 NOTICE.txt > drwxr-xr-x. 2 elasticsearch root 6 Sep 6 10:55 plugins > -rw-r--r--. 1 elasticsearch root 8500 Sep 6 10:38 README.textile > [root@localhost ~]# ls -la /usr/share/elasticsearch/bin > total 18468 > drwxr-xr-x. 2 elasticsearch root 4096 Sep 16 08:36 . > drwxr-xr-x. 8 root root 201 Sep 16 09:16 .. > -rwxr-xr-x. 1 elasticsearch root 1954 Sep 6 10:55 elasticsearch > -rwxr-xr-x. 1 elasticsearch root 491 Sep 6 10:45 elasticsearch-certgen > -rwxr-xr-x. 1 elasticsearch root 483 Sep 6 10:45 elasticsearch-certutil > -rwxr-xr-x. 1 elasticsearch root 982 Sep 6 10:55 elasticsearch-cli > -rwxr-xr-x. 1 elasticsearch root 433 Sep 6 10:45 elasticsearch-croneval > -rwxr-xr-x. 1 elasticsearch root 2149 Sep 6 10:55 elasticsearch-env > -rwxr-xr-x. 1 elasticsearch root 121 Sep 6 10:55 elasticsearch-keystore > -rwxr-xr-x. 1 elasticsearch root 440 Sep 6 10:45 elasticsearch-migrate > -rwxr-xr-x. 1 elasticsearch root 126 Sep 6 10:55 elasticsearch-node > -rwxr-xr-x. 1 elasticsearch root 172 Sep 6 10:55 elasticsearch-plugin > -rwxr-xr-x. 1 elasticsearch root 431 Sep 6 10:45 elasticsearch-saml-metadata > -rwxr-xr-x. 1 elasticsearch root 438 Sep 6 10:45 elasticsearch-setup-passwords > -rwxr-xr-x. 1 elasticsearch root 118 Sep 6 10:55 elasticsearch-shard > -rwxr-xr-x. 1 elasticsearch root 427 Sep 6 10:45 elasticsearch-sql-cli > -rwxr-xr-x. 1 elasticsearch root 18828739 Sep 6 10:45 elasticsearch-sql-cli-7.3.2.jar > -rwxr-xr-x. 1 elasticsearch root 426 Sep 6 10:45 elasticsearch-syskeygen > -rwxr-xr-x. 1 elasticsearch root 426 Sep 6 10:45 elasticsearch-users > -rwxr-xr-x. 1 elasticsearch root 346 Sep 6 10:45 x-pack-env > -rwxr-xr-x. 1 elasticsearch root 354 Sep 6 10:45 x-pack-security-env > -rwxr-xr-x. 1 elasticsearch root 353 Sep 6 10:45 x-pack-watcher-env ---
**Author:** ![NewmazN24](https://avatars.discourse-cdn.com/v4/letter/n/b77776/32.png) [@NewmazN24](https://discuss.elastic.co/u/NewmazN24)\ **Post date:** [September 16, 2019, 1:53pm UTC](https://discuss.elastic.co/t/starting-es-with-tls-options/199468/6 "2019-09-16T13:53:21Z")
It's still failing. I am trying to play with my config file. **Started** xpack.security.enabled: true xpack.security.transport.ssl.enabled: true xpack.security.transport.ssl.verification\_mode: certificate xpack.security.transport.ssl.keystore.path: certs/elastic-certificates.p12 xpack.security.transport.ssl.truststore.path: certs/elastic-certificates.p12 **Tried** xpack.security.transport.ssl.keystore.path: _/usr/share/elasticsearch/certs_/elastic-certificates.p12 xpack.security.transport.ssl.truststore.path: _/usr/share/elasticsearch_/certs/elastic-certificates.p12 xpack.security.transport.ssl.keystore.path: _{ES\_HOME}\*/elastic-certificates.p12 xpack.security.transport.ssl.truststore.path: \*{ES\_HOME}_/elastic-certificates.p12 ---
**Author:** ![mbelaloui](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mbelaloui/32/49140_2.png) [@mbelaloui](https://discuss.elastic.co/u/mbelaloui)\ **Post date:** [September 16, 2019, 2:04pm UTC](https://discuss.elastic.co/t/starting-es-with-tls-options/199468/7 "2019-09-16T14:04:39Z")
Hello NewmazN24, I apologize for not being more specific the `chown -R elasticsearch:root /usr/share/elasticsearch/*` is not a good practice i think, a best practice is to chown the certificate only so you don't change the predefined parameters. You should also put your certificates in `/etc/elasticsearch/` so the elasticsearch service can access it. did you define a password when you create your certificate ? can we have all your`elasticsearch.yml`, the result of your `sudo /usr/share/elasticsearch/bin/elasticsearch-keystore list` and all the `elasticsearch log` 'starting when you restart your service' Mehdi. ---
**Author:** ![NewmazN24](https://avatars.discourse-cdn.com/v4/letter/n/b77776/32.png) [@NewmazN24](https://discuss.elastic.co/u/NewmazN24)\ **Post date:** [September 16, 2019, 2:15pm UTC](https://discuss.elastic.co/t/starting-es-with-tls-options/199468/8 "2019-09-16T14:15:50Z")
Sep 16 10:10:58 localhost.localdomain elasticsearch[7092]: at org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:959) Sep 16 10:10:58 localhost.localdomain elasticsearch[7092]: at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:310) Sep 16 10:10:58 localhost.localdomain elasticsearch[7092]: at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:159) Sep 16 10:10:58 localhost.localdomain elasticsearch[7092]: at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:150) Sep 16 10:10:58 localhost.localdomain elasticsearch[7092]: at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) Sep 16 10:10:58 localhost.localdomain elasticsearch[7092]: at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:124) Sep 16 10:10:58 localhost.localdomain elasticsearch[7092]: at org.elasticsearch.cli.Command.main(Command.java:90) Sep 16 10:10:58 localhost.localdomain elasticsearch[7092]: 2019-09-16 10:10:58,307 main ERROR Could not create plugin of type class org.apache.logging.log4j.core.appender.RollingFileAppender for element RollingF Sep 16 10:10:58 localhost.localdomain elasticsearch[7092]: 2019-09-16 10:10:58,313 main ERROR Null object returned for RollingFile in Appenders. Sep 16 10:10:58 localhost.localdomain elasticsearch[7092]: 2019-09-16 10:10:58,313 main ERROR Null object returned for RollingFile in Appenders. Sep 16 10:10:58 localhost.localdomain elasticsearch[7092]: 2019-09-16 10:10:58,314 main ERROR Null object returned for RollingFile in Appenders. Sep 16 10:10:58 localhost.localdomain elasticsearch[7092]: 2019-09-16 10:10:58,314 main ERROR Null object returned for RollingFile in Appenders. Sep 16 10:10:58 localhost.localdomain elasticsearch[7092]: 2019-09-16 10:10:58,314 main ERROR Null object returned for RollingFile in Appenders. Sep 16 10:10:58 localhost.localdomain elasticsearch[7092]: 2019-09-16 10:10:58,315 main ERROR Null object returned for RollingFile in Appenders. Sep 16 10:10:58 localhost.localdomain elasticsearch[7092]: 2019-09-16 10:10:58,315 main ERROR Null object returned for RollingFile in Appenders. Sep 16 10:10:58 localhost.localdomain elasticsearch[7092]: 2019-09-16 10:10:58,315 main ERROR Null object returned for RollingFile in Appenders. Sep 16 10:10:58 localhost.localdomain elasticsearch[7092]: 2019-09-16 10:10:58,316 main ERROR Null object returned for RollingFile in Appenders. Sep 16 10:10:58 localhost.localdomain elasticsearch[7092]: 2019-09-16 10:10:58,316 main ERROR Unable to locate appender "rolling" for logger config "root" Sep 16 10:10:58 localhost.localdomain elasticsearch[7092]: 2019-09-16 10:10:58,316 main ERROR Unable to locate appender "rolling\_old" for logger config "root" Sep 16 10:10:58 localhost.localdomain elasticsearch[7092]: 2019-09-16 10:10:58,317 main ERROR Unable to locate appender "index\_indexing\_slowlog\_rolling\_old" for logger config "index.indexing.slowlog.index" Sep 16 10:10:58 localhost.localdomain elasticsearch[7092]: 2019-09-16 10:10:58,321 main ERROR Unable to locate appender "index\_indexing\_slowlog\_rolling" for logger config "index.indexing.slowlog.index" Sep 16 10:10:58 localhost.localdomain elasticsearch[7092]: 2019-09-16 10:10:58,321 main ERROR Unable to locate appender "audit\_rolling" for logger config "org.elasticsearch.xpack.security.audit.logfile.LoggingAu Sep 16 10:10:58 localhost.localdomain elasticsearch[7092]: 2019-09-16 10:10:58,321 main ERROR Unable to locate appender "index\_search\_slowlog\_rolling\_old" for logger config "index.search.slowlog" Sep 16 10:10:58 localhost.localdomain elasticsearch[7092]: 2019-09-16 10:10:58,323 main ERROR Unable to locate appender "index\_search\_slowlog\_rolling" for logger config "index.search.slowlog" Sep 16 10:10:58 localhost.localdomain elasticsearch[7092]: 2019-09-16 10:10:58,324 main ERROR Unable to locate appender "deprecation\_rolling\_old" for logger config "org.elasticsearch.deprecation" Sep 16 10:10:58 localhost.localdomain elasticsearch[7092]: 2019-09-16 10:10:58,324 main ERROR Unable to locate appender "deprecation\_rolling" for logger config "org.elasticsearch.deprecation" Sep 16 10:11:02 localhost.localdomain systemd[1]: elasticsearch.service: main process exited, code=exited, status=1/FAILURE Sep 16 10:11:02 localhost.localdomain systemd[1]: Unit elasticsearch.service entered failed state. Sep 16 10:11:02 localhost.localdomain systemd[1]: elasticsearch.service failed. ---
**Author:** ![NewmazN24](https://avatars.discourse-cdn.com/v4/letter/n/b77776/32.png) [@NewmazN24](https://discuss.elastic.co/u/NewmazN24)\ **Post date:** [September 16, 2019, 2:17pm UTC](https://discuss.elastic.co/t/starting-es-with-tls-options/199468/9 "2019-09-16T14:17:32Z")
Certificate are under `/etc/elasticsearch`. ES yaml file has only that configure, **everything else is as is**. xpack.security.enabled: true xpack.security.transport.ssl.enabled: true xpack.security.transport.ssl.verification\_mode: certificate xpack.security.transport.ssl.keystore.path: certs/elastic-certificates.p12 xpack.security.transport.ssl.truststore.path: certs/elastic-certificates.p12 ---
**Author:** ![NewmazN24](https://avatars.discourse-cdn.com/v4/letter/n/b77776/32.png) [@NewmazN24](https://discuss.elastic.co/u/NewmazN24)\ **Post date:** [September 16, 2019, 2:22pm UTC](https://discuss.elastic.co/t/starting-es-with-tls-options/199468/10 "2019-09-16T14:22:42Z")
You won't be able to help me properly if I do not tell you all you need. - Run on CentOS7 - Only Elasticsearch is installed - Nothing has been modified, except lines in elasticsearch.yml Ran those command 1. elasticsearch-certutil cert --ca elastic-stack-ca.p12 (With a password). 2. elasticsearch-keystore add xpack.security.transport.ssl.keystore.secure\_password 3. elasticsearch-keystore add xpack.security.transport.ssl.truststore.secure\_password ---
**Author:** ![ikakavas](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ikakavas/32/34430_2.png) [@ikakavas](https://discuss.elastic.co/u/ikakavas)\ **Post date:** [September 16, 2019, 2:41pm UTC](https://discuss.elastic.co/t/starting-es-with-tls-options/199468/11 "2019-09-16T14:41:39Z")
> [@NewmazN24](#): > > So I have tried without being root. What I faced is permission denied, therefore I need to do I would imagine that this permission denied was due to the fact that you copied the `elastic-certificates.p12` files in the configuration folder but those were owned by root and so elasticsearch could not read them. The solution for this would be to make the keystore files readable by elasticsearch, not to run elasticsearch as root. I think your current state is because of permission changes that you have tried , could that be the case ? > [@NewmazN24](#): > > - Nothing has been modified, except lines in elasticsearch.yml Is that a new installation , or the previous ones we were dealing with ? i.e. have you performed any ownership changes for files and directories or not ? > [@NewmazN24](#): > > Ran those command Which user did you run this commands as ? Root ? This will affect who owns the produced keystore files and whether elasticsearch can read them. ---
**Author:** ![NewmazN24](https://avatars.discourse-cdn.com/v4/letter/n/b77776/32.png) [@NewmazN24](https://discuss.elastic.co/u/NewmazN24)\ **Post date:** [September 16, 2019, 5:20pm UTC](https://discuss.elastic.co/t/starting-es-with-tls-options/199468/12 "2019-09-16T17:20:48Z")
@ikakavas It finally ran. For some reason, CHOWN didn't apply properly on my repertory. @mbelaloui Thanks for your points ! ---
**Author:** ![mbelaloui](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mbelaloui/32/49140_2.png) [@mbelaloui](https://discuss.elastic.co/u/mbelaloui)\ **Post date:** [September 16, 2019, 9:23pm UTC](https://discuss.elastic.co/t/starting-es-with-tls-options/199468/13 "2019-09-16T21:23:07Z")
Happy To Help. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [October 14, 2019, 9:23pm UTC](https://discuss.elastic.co/t/starting-es-with-tls-options/199468/14 "2019-10-14T21:23:17Z")
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