Initial bootstrap

[ivomarino]

we want to implement some kind of bootstrapping feature which allows devs to easily get-started with AppFlow. The idea is that:

• Someone, ore some cloud, provides a blank VM with just ssh.
• An appflow (or other) user with an ssh-password must be provided on the VM.
• This user must have sudo rights.

so we run something like utils/bootstrap.sh <tenant> <env> [<ssh-username>] <host> and this script will:

• Change the pwd of the appflow user or create it if it does not exist.
• Use the mrrobot config skeleton and configure inventory for new appflow-tenant
• Start provisioning basic AppFlow with example vhost.

we could also directly provide a public key or similar. In other words we want to just run a command with three parameters and everything get's setup on order to be ready to use AppFlow and deploy applications on a remote blank VM.