Is it possible to use Kubespray with Bastion but on custom port and with agent forwarding? If it is not supported, what changes does one need to do?
In my case where I needed to access the hosts on particular ports, I just had to modify the host's ~/.ssh/config
to be:
Host 10.40.45.102
ForwardAgent yes
User root
ProxyCommand ssh -W %h:%p -p 44057 root@example.com
Host 10.40.45.104
ForwardAgent yes
User root
ProxyCommand ssh -W %h:%p -p 44058 root@example.com
Where 10.40.*
was the internal IPs.
Always, since you can configure that at three separate levels: via the host user's ~/.ssh/config
, via the entire playbook with group_vars
, or as inline config (that is, on the command line or in the inventory file).
The ssh config is hopefully straightforward:
Host 1.2.* *.example.com # or whatever pattern matches the target instances
ProxyJump someuser@some-bastion:1234
# and then the Agent should happen automatically, unless you mean
# ForwardAgent yes
I'll speak to the inline config next, since it's a little simpler:
ansible-playbook -i whatever \
-e '{"ansible_ssh_common_args": "-o ProxyJump=\"someuser@jump-host:1234\""}' \
cluster.yaml
or via the inventory in the same way:
master-host-0 ansible_host=1.2.3.4 ansible_ssh_common_args="-o ProxyJump='someuser@jump-host:1234'"
or via group_vars
, which you can either add to an existing group_vars/all.yml
, or if it doesn't exist then create that group_vars
directory containing the all.yml
file as a child of the directory containing your inventory file
If you have more complex ssh config than you wish to encode in the inventory/command-line/group_vars, you can also instruct the ansible-invoked ssh to use a dedicated config file via the ansible_ssh_extra_args
variable:
ansible-playbook -e '{"ansible_ssh_extra_args": "-F /path/to/special/ssh_config"}' ...