Connecting to a language server via container networking

[krystalcode]

I run Emacs in a container, and the phpactor language server in another. I have the containers connected via a shared network.

I start the language server separately on port 8890 and it is listening for connections.

[LSP    ][INFO][916467.989963] Listening on 0.0.0.0:8890

When I ping phpactor from within the emacs container in a shell, the connection is established.

$ curl -v phpactor:8890
* Host phpactor:8890 was resolved.
* IPv6: (none)
* IPv4: 10.89.1.14, 10.89.1.14
*   Trying 10.89.1.14:8890...
* Connected to phpactor (10.89.1.14) port 8890
> GET / HTTP/1.1
> Host: phpactor:8890
> User-Agent: curl/8.9.1
> Accept: */*
> 
* Request completely sent off

And it reaches the server:

[LSP    ][INFO][916713.257669] Accepted connection from "10.89.1.15:48574"
[LSP    ][WARN][916713.262326] Could not parse header: GET / HTTP/1.1
[LSP    ][WARN][916713.262396] Could not parse header: Host: phpactor:8890

When I type M-x eglot I get prompted to type the host and port and I do so: phpactor:8890. I get the following error: "Searching for program: No such file or directory, phpactor:8890".

How do I get eglot to send the request to the given host/port instead of running a local program?

[joaotavora]

I can't reproduce this, but then again, I don't have half the picture. Anyway, I think you might be using an old Eglot. What is your Emacs version? Have you tried `M-x eglot-upgrade-eglot`?

…

On Fri, Nov 29, 2024 at 10:25 PM Dimitris Bozelos ***@***.***> wrote: I run Emacs in a container, and the phpactor language server in another. I have the containers connected via a shared network. I start the language server separately on port 8890 and it is listening for connections. [LSP ][INFO][916467.989963] Listening on 0.0.0.0:8890 When I ping phpactor from within the emacs container in a shell, the connection is established. $ curl -v phpactor:8890 * Host phpactor:8890 was resolved. * IPv6: (none) * IPv4: 10.89.1.14, 10.89.1.14 * Trying 10.89.1.14:8890... * Connected to phpactor (10.89.1.14) port 8890 > GET / HTTP/1.1 > Host: phpactor:8890 > User-Agent: curl/8.9.1 > Accept: */* > * Request completely sent off And it reaches the server: [LSP ][INFO][916713.257669] Accepted connection from "10.89.1.15:48574" [LSP ][WARN][916713.262326] Could not parse header: GET / HTTP/1.1 [LSP ][WARN][916713.262396] Could not parse header: Host: phpactor:8890 When I type M-x eglot I get prompted to type the host and port and I do so: phpactor:8890. I get the following error: "Searching for program: No such file or directory, phpactor:8890". How do I get eglot to send the request to the given host/port instead of running a local program? — Reply to this email directly, view it on GitHub <#1470>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAC6PQ2ZCCXCZB7ARYFTLLD2DDSW3AVCNFSM6AAAAABSX2MX7WVHI2DSMVQWIX3LMV43ERDJONRXK43TNFXW4OZXGU4DANJXGQ> . You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

-- João Távora

[krystalcode]

Thank you for the swift response, almost figured it out.

M-x emacs-version
GNU Emacs 29.4 (build 1, x86_64-redhat-linux-gnu, GTK+ Version 3.24.43, cairo version 1.18.0) of 2024-10-10

Looking for the Glot version, strangely M-x package-list-packages listed eglot as available, not installed. How come and I had all the eglot commands available, and it was working with a local phpactor executable? Anyways, maybe I messed something trying out different things.

I run M-x eglot-upgrade-eglot and version 1.17 is marked as installed.

Now, having the following in my config

(add-to-list 'eglot-servers-program '((php-mode phps-mode) "phpactor" "8890"))

I run M-x eglot on a php-mode buffer, and it connects to the language server successfully. It does ask me to manually enter host:port every time though.

I want to do the following so that it connects automatically

(use-package eglot
  :config
  (add-to-list 'eglot-servers-program '((php-mode phps-mode) "phpactor" "8890"))
  :hook 
  (php-mode . eglot-ensure)
  (phps-mode . eglot-ensure))

Is "phpactor" "8890" not the correct syntax? This page states (host port args…). Tried "phpactor:8890" as well, no luck. It fails ([eglot] warning Searching for program: No such file or directory, phpactor:8890), and I have to manually do M-x eglot and enter phpactor:8890, then it works.