Hello, Ansible admins and users!
I am using Ansible with Amazon EC2.
I've configured provisioning of EC2 private hosts over public SSH bastions
(exactly as specified here:
http://alexbilbie.com/2014/07/using-ansible-with-a-bastion-host).
So I have an ssh_config like below containing settings for forwarding an
SSH requests to private hosts over public ones:
# DEV bastion
Host ###.###.###.###
User ubuntu
HostName ###.###.###.###
ProxyCommand none
BatchMode yes
PasswordAuthentication no
ForwardAgent yes
Host *
User ubuntu
ServerAliveInterval 60
TCPKeepAlive yes
ProxyCommand ssh -q -A [email protected] nc %h %p
ControlMaster auto
ControlPath ~/.ssh/mux-%r@%h:%p
ControlPersist 8h
But now I want to make generate this ssh_config on-the-fly from the
playbook. I.e what do I need to implement:
1. Single playbook spins up public and private EC2 hosts, attaches EIPs to
public host (SSH bastions, etc.) and adds them to public hosted zones so
SSH bastions will have public DNS names
2. Using info about created topology, playbook generates new ssh_config
file and starts using it instead of default one (without relaunch or
retries)
3. Playbook continues nodes provisioning, but now private EC2 hosts are
provisioned over public SSH bastions as configured in generated ssh_config
specified
I am done with p.1, but now there is the problem - there is no way to tell
Ansible to reload SSH config on-the-fly (without restarting playbook).
So no way to continue provisioning private hosts over public ones at the
same playbook.
Could you, please suggest me an option to overcome this? Or, maybe, point
me to the code I need to modify in Ansible to make this possible - any help
will be very appreciated ;)
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