Does kibana understand package registry via proxy?

Elastic Stack Kibana
1

Hi,

Appearantly since 7.14 (fleet = GA) I am required to have internet access for my selfmanaged kibana's to reach some packet registry (or host one myself).

However, I set a proxy in the environment and am still not able to reach it. What is going wrong?
The error:
image

However from the commandline as the kibana user:

[kibana@aapps1121 ~]$ curl "https://epr.elastic.co/search?package=system&internal=true&experimental=true&kibana.version=7.14.0"
[
  {
    "name": "system",
    "title": "System",
    "version": "1.1.2",
    "release": "ga",
    "description": "This Elastic integration collects logs and metrics from your servers",
    "type": "integration",
    "download": "/epr/system/system-1.1.2.zip",
    "path": "/package/system/1.1.2",
    "icons": [
      {
        "src": "/img/system.svg",
        "path": "/package/system/1.1.2/img/system.svg",
        "title": "system",
        "size": "1000x1000",
        "type": "image/svg+xml"
      }
    ],
    "policy_templates": [
      {
        "name": "system",
        "title": "System logs and metrics",
        "description": "Collect logs and metrics from System instances"
      }
    ]
  }
][kibana@aapps1121 ~]$

I am running as kibana user:

[kibana@aapps1121 ~]$ ps -ef|grep kibana
kibana    62605      1  0 16:13 ?        00:00:00 /usr/share/kibana/bin/../node/bin/node /usr/share/kibana/bin/../src/cli/dist --logging.dest="/var/log/kibana/kibana.log" --pid.file="/run/kibana/kibana.pid"
kibana    62617  62605  4 16:13 ?        00:00:37 /usr/share/kibana/node/bin/node --preserve-symlinks-main --preserve-symlinks /usr/share/kibana/src/cli/dist --logging.dest="/var/log/kibana/kibana.log" --pid.file="/run/kibana/kibana.pid"
2

Solved by adding
xpack.fleet.registryProxyUrl: "http://proxy-url:8080" to kibana.yml

I find it bad practice that kibana does not make use of regular environment variables.