Colored output from docker to websocket
This may be a bit of a tricky question, but I'm open to trying everything and every suggestion thrown at me.
I start a docker instance that clones a git repository, this is a php 7 apache docker instance:
FROM php:7.0-apache
With Symfony Process Component I load my container and pass environment variables.
"docker run -e REPOSITORY=\"{$url}\"
-e COMPOSER_ALLOW_SUPERUSER=1
-e TERM='xterm-256color' arbiter bash -l"
I added an environment xterm-256-color
to make sure I get colored output (correct me if this is not the case).
To display the output of a container, I am using a Symfony component component to post it to a website.
$process->run(function ($type, $buffer) use ($socket) {
socket_write($socket, $buffer, strlen($buffer));
});
At this point, I can use something like socket.io to display it on the webpage in real time.
The problem is, I want to display the docker output with the correct coloring as you would normally see it with a terminal. At this point all formatting and coloring are lost.
Is there any website that I can pipe the docker output to a websocket and still save my coloring for display on the webpage?
Any hints or advice to guide me in the right direction is appreciated as I ask a lot here.
Thanks for the testimony, greetings.
Edit
To be clear I am not getting any color output yet, the output I got from the docker container just looks like this (composer example):
[2017-02-12 01:02:56] local.INFO: remote: Counting objects: 69, done.
remote: Compressing objects: 2% (1/47)
remote: Compressing objects: 4% (2/47)
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In this case, I just had to add the -t flag to my docker run command. I tried to add -it
which resulted in an error. Obviously I'm bad and unnecessary, as there is nothing interactive about the process.
After adding the flag -t
like in the example below, ANSI characters started showing:
docker run -t
-e REPOSITORY=\"{$url}\"
-e COMPOSER_ALLOW_SUPERUSER=1
-e TERM='xterm' arbiter
I am formatting ANSI characters with the provided library from @Robert everything works fine now. By doing:
socket_write($socket, $buffer, strlen($buffer));
I just needed to remember to pass the generated HTML string length and it all makes perfect.
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