ssh_tunnel/templates/local/ssh_config.j2

Host gateway
        HostName tunnel-end.a-0.me
        User ssh-tunnel
        Port 22
        IdentityFile /home/autossh/.ssh/tunnel-key
        IdentitiesOnly yes
        ExitOnForwardFailure yes
        ServerAliveInterval 5
        ServerAliveCountMax 3
{% for forwarding in remote_forward %}
        RemoteForward localhost:{{ forwarding.ephemeral_port }} {{ forwarding.dest_host }}:{{ forwarding.dest_port }}
{% endfor %}
{% for forwarding in local_forward %}
        LocalForward {{ query('community.general.dig', inventory_hostname, 'qtype=A') | first }}:{{ forwarding.local_port }} {{ forwarding.remote_host }}:{{ forwarding.remote_port }}
{% endfor %}