[lxc-users] lxd api return of /1.0/containers/<name>/exec

[laurent ducos]

I'm progressing a bit. I  pass in post an exec command (df), and catch the
return of the command via the operation and the secret
But if I do not set timeout in the last line, the curl command remains
blocked. Someone would have any idea ?


#! /bin/bash

t=$(/usr/bin/curl  -s -k --cert .config/lxc/client.crt --key
.config/lxc/client.key
https://localhost:8443/1.0/containers/wondrous-mackerel/exec -X POST -d
'{"command": ["/bin/df", "-h", "/"], "wait-for-websocket": true,
"interactive": true }')
operation=$(echo $t | jq .operation|tr -d '"')
secret=$(echo $t |jq '.metadata.metadata.fds[]'|head -n 1| tr -d '"')
x=$(curl -m 1 -i -N  --header 'Sec-WebSocket-Key: SGVsbG8sIHdvcmxkIQ=='
--header 'Sec-WebSocket-Version: 13' -H 'Connection: Upgrade' -H 'Upgrade:
websocket'  -s -k --cert .config/lxc/client.crt --key
.config/lxc/client.key https://localhost:8443
$operation/websocket?secret=$secret)
echo $x


2016-12-23 18:47 GMT+01:00 Robert Johnson <robert.j at bendtel.com>:

> I've been working on obtaining two way communications with the /exec URI,
> but your needs may more simple then mine.
>
> When you POST to /exec, you probably want to include the 'record-output'
> key with a (boolean) value of true. ie
>
> '{"command": ["df -f /"], "record-output": true}'
>
> The doc's state that stdout and stderr will be redirected to a log file.
>
> It doesn't state where the log file is; but I'm willing to bet that the
> reply will include a path that you can subsequently GET.
>
> If this works for you, let me know, I'm interested in at least obtaining
> the output from some commands.
>
> On 12/23/2016 05:02 AM, laurent ducos wrote:
>
>> Hello.
>>
>> Is there a solution to get the return of a command launch by lxd exec API
>> ?
>>
>> curl -s --unix-socket /var/lib/lxd/unix.socket
>> a/1.0/containers/$CONTAINER/exec -X POST -d '{"command": ["df -f /"]}' |
>> jq .
>>
>> I would like to see something like this in return of the command.
>>
>> output: /dev/sda5           15G    4,6G  9,8G  32% /
>>
>>
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