Hello,
just remembered that a while ago I added support for the config file name '-' (dash/minus char) which means kamailio reads the config from standard input. This can be used to direct content of the kamailio.cfg from a safe system. For example, if one stores the config file on a web server, can do:
curl https://myserver.com/kamailio.cfg | kamailio -f -
It can be a webserver asking for password.
In the context of keeping it encrypted, there can be a tool that fetches and decrypts kamailio.cfg content and prints it to the standard output.
Using this, not even kamailio.cfg needs to be saved on the local disc.
On the other hand, as I said in a previous response, if an untrusted person gets access with root privileges, then it can attach to a running kamailio process with gdb and read from memory.
Cheers,
Daniel
Hi Robert,I'm not security expert and I'm quite new in docker, but I think password in Docker container which will be in clear text saved somewhere should not be a problem, as far as you do not save this password to image or git and etc...
I think best way for you is to use docker secret and generate then config file for Kamailio using this docker secrets and then start Kamailio and for all of this you need to write some kind of Entrypoint script. Here is example how something similar do Homer Sipcapture, they set environment variables in docker-compose and then generate config file based on this, but you can use probably docker secrets instead of environment variables:
I found one more interesting link regarding docker secrets:
With kind regards,
Jurijs
On Thu, Nov 16, 2017 at 11:58 PM, Robert <robert@vooey.co.uk> wrote:
That’d presumably leave the clear text footprint I'm trying to avoid, albeit in a non-Kamailio file. I’ve made a start on an approach to read from a file, Docker secrets are basically just files, but the Docker platform handles them securely.
Thanks - Robert...
> On 16 Nov 2017, at 21:46, Bastian Triller <bastian.triller@gmail.com> wrote:
>
> isn't using a group in the db URL an option? Generate some .cnf in
> /etc/mysql/conf.d (or where MySQL searches its configuration in a
> Docker container) from the secret and use the group in your db URL in
> kamailio.cfg.
>
> http://www.kamailio.org/docs/modules/5.0.x/modules/db_ mysql.html#idp419
> 97212
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