Update LXD Client Config

[jtopjian]

This commit updates the LXD discovery plugin to support the new LXD
client API.

[jtopjian]

Hello,

The LXD project recently refactored their client API. We moved to this new API a few weeks ago in the Terraform LXD provider and can verify the changes are safe and work.

These are all internal changes. There are no changes to the gobetween configuration or any other user-facing pieces.

In order to help with testing, I have created a set of Terraform configurations that you can find here:

https://github.com/jtopjian/terraform-gobetween-dev

This will deploy a virtual machine to either AWS or OpenStack and create an environment with LXD (including two running containers), Go, and dependencies.

To use this, do the following:

1. Download Terraform
2. Clone the above repository
3. Do:

$ cd terraform-gobetween-dev/aws
$ export AWS_SECRET_ACCESS_KEY=your aws secret access key
$ export AWS_ACCESS_KEY_ID=your aws access key id
$ terraform apply

If you prefer not to use Terraform, you can simply use the deploy script found in files/deploy.sh. Just copy this to any Ubuntu 16.04 virtual machine.

When the script is done running, you can then build a gobetween binary using whatever branch, then use the supplied /home/ubuntu/gobetween.toml file. This has all configuration necessary to connect to the supplied LXD server:

$ sudo ./bin/gobetween -c ~/gobetween.toml
$ curl localhost

Please let me know if you have any questions.

[illarion]

Sorry, I created duplicate issue without noticing that you've already done whole thing. My bad

[jtopjian]

No problem at all. Should I open an Issue+PR next time?

[illarion]

I will leave it here just not to forget:

sudo dpkg --add-architecture i386
sudo apt install libacl1-dev:i386
sudo apt install libc-dev:i386

This lines are required in order to make a cross build

[jtopjian]

@illarion Good call. I have updated the deploy.sh script with that :)

[illarion]

Merged