[SOLVED] How can I properly configure web server (or wss?) (or ssl?) for phabricator notifications?

How can I properly configure web server (or wss?) (or ssl?) for phabricator notifications?

Please let me know if I'm asking this question badly, but here is my situation. I'm trying to set up a phabricator server on AWS EC2 for my organization. The main phabricator server is fine, but I'm struggling to get the notification (aphlict) server working.

I can start the server successfully with phabricator/.bin/aphlict start (or at least phabricator/.bin/aphlict status gives Aphlict (1461) is running.)
Though strangely, phabricator/.bin/aphlict debug gives Error: error:0906D06C:PEM routines:PEM_read_bio:no start line and an uncaught exception of Error: EACCES: permission denied, open '/var/log/aphlict.log'
My console in firefox gives Firefox can’t establish a connection to the server at wss://phabricator.<redacted>.com:22280/.
My notification server configuration page on phabricator shows [cURL/7] (https://phabricator.<redacted>.com:22280/) <CURLE_COULDNT_CONNECT> The cURL library raised an error while making a request. You may be able to find more information about this error (error code: 7) on the cURL site: http://curl.haxx.se/libcurl/c/libcurl-errors.html#CURLECOULDNTCONNECT`

I am desperately trying to follow the instructions from https://phabricator.tbmh.org/book/phabricator/article/notifications/ but I really don't understand web sockets, HTTPS, TCP, or SSL well enough. I am serving my phabricator site over HTTPS, and am pretty sure I need to do some version of this:

If you serve Phabricator over HTTPS, you must also serve websockets over HTTPS. Browsers will refuse to connect to ws:// websockets from HTTPS pages.

If a client connects to Phabricator over HTTPS, Phabricator will automatically select an appropriate HTTPS service from notification.servers and instruct the browser to open a websocket connection with wss://.

The simplest way to do this is configure Aphlict with an SSL key and certificate and let it terminate SSL directly.

But unfortunately I can't figure out exactly what I should change to make it all work.

Here is my sudo ./bin/config get notification.servers:

{
  "config": [
    {
      "key": "notification.servers",
      "source": "local",
      "value": [
        {
          "type": "client",
          "host": "phabricator.<redacted>.com",
          "port": 22280,
          "protocol": "https"
        },
        {
          "type": "admin",
          "host": "127.0.0.1",
          "port": 22281,
          "protocol": "http"
        }
      ],
      "status": "set",
      "errorInfo": null
    },
    {
      "key": "notification.servers",
      "source": "database",
      "value": null,
      "status": "unset",
      "errorInfo": null
    }
  ]
}

and here is my phabricator/conf/aphlict/aphlict.default.json:

{
  "servers": [
    {
      "type": "client",
      "port": 22280,
      "listen": "0.0.0.0",
      "ssl.key": "/etc/letsencrypt/live/phabricator.<redacted>.com/fullchain.pem",
      "ssl.cert": "/etc/letsencrypt/live/phabricator.<redacted>.com/privkey.pem",
      "ssl.chain": "/etc/letsencrypt/live/phabricator.<redacted>.com/chain.pem"
    },
    {
      "type": "admin",
      "port": 22281,
      "listen": "127.0.0.1",
      "ssl.key": "/etc/letsencrypt/live/phabricator.<redacted>.com/fullchain.pem",
      "ssl.cert": "/etc/letsencrypt/live/phabricator.<redacted>.com/privkey.pem",
      "ssl.chain": "/etc/letsencrypt/live/phabricator.<redacted>.com/chain.pem"
    }
  ],
  "logs": [
    {
      "path": "/var/log/aphlict.log"
    }
  ],
  "pidfile": "/var/tmp/aphlict/pid/aphlict.pid"
}

I've also added TCP inbound 0.0.0.0/0 and ::/0 rules on ports 22281 and 22280 in AWS.

Solution

I did finally get the solution. In the end I was just using the wrong permutation of .pem files...it needed to be this:

      "ssl.key": "/etc/letsencrypt/live/phabricator.<redacted>.com/privkey.pem",
      "ssl.cert": "/etc/letsencrypt/live/phabricator.<redacted>.com/cert.pem",
      "ssl.chain": "/etc/letsencrypt/live/phabricator.<redacted>.com/fullchain.pem"