Logstash fails when running the service by systemctl

[mhsh64 (MH)]

Hello,

I get the following line when running logstash:

error=>#<LogStash::Outputs::ElasticSearch::HttpClient::Pool::BadResponseCodeError: LogStash::Outputs::ElasticSearch::HttpClient::Pool::BadResponseCodeError>, :backtrace=>["/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/logstash-output-elasticsearch-10.1.0-java/lib/logstash/outputs/elasticsearch/http_client/manticore_adapter.rb:80:in `perform_request'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/logstash-output-elasticsearch-10.1.0-java/lib/logstash/outputs/elasticsearch/http_client/pool.rb:291:in `perform_request_to_url'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/logstash-output-elasticsearch-10.1.0-java/lib/logstash/outputs/elasticsearch/http_client/pool.rb:278:in `block in perform_request'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/logstash-output-elasticsearch-10.1.0-java/lib/logstash/outputs/elasticsearch/http_client/pool.rb:373:in `with_connection'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/logstash-output-elasticsearch-10.1.0-java/lib/logstash/outputs/elasticsearch/http_client/pool.rb:277:in `perform_request'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/logstash-output-elasticsearch-10.1.0-java/lib/logstash/outputs/elasticsearch/http_client/pool.rb:285:in `block in Pool'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/logstash-output-elasticsearch-10.1.0-java/lib/logstash/outputs/elasticsearch/http_client.rb:341:in `exists?'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/logstash-output-elasticsearch-10.1.0-java/lib/logstash/outputs/elasticsearch/http_client.rb:359:in `rollover_alias_exists?'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/logstash-output-elasticsearch-10.1.0-java/lib/logstash/outputs/elasticsearch/ilm.rb:91:in `maybe_create_rollover_alias'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/logstash-output-elasticsearch-10.1.0-java/lib/logstash/outputs/elasticsearch/ilm.rb:10:in `setup_ilm'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/logstash-output-elasticsearch-10.1.0-java/lib/logstash/outputs/elasticsearch/common.rb:52:in `block in setup_after_successful_connection'"]}

Here is my config file:

input {
  stdin {
    id => "my_id"
  }
}

output {
  elasticsearch {
    hosts => ["https://srv1:9200", "https://srv2:9200", "https://srv3:9200"]
    user => logstash_internal
    password => "${ES_PWD}"
    ssl => true
    cacert => '/etc/elasticsearch/certs/ca-bundle.trust.crt'
  }
}

I am able to login with logstash_internal to elasticsearch