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#
# Options for passing to the ruby gem ssh-net
#
module LeapCli
module SSH
module Options
#
# options passed to net-ssh. See
# https://net-ssh.github.io/net-ssh/Net/SSH.html#method-c-start
# for the available options.
#
def self.global_options
{
#:keys_only => true,
:global_known_hosts_file => Path.named_path(:known_hosts),
:user_known_hosts_file => '/dev/null',
:paranoid => true,
:verbose => net_ssh_log_level,
:auth_methods => ["publickey"],
:timeout => 5
}
end
def self.node_options(node, ssh_options_override=nil)
{
# :host_key_alias => node.name, << incompatible with ports in known_hosts
:host_name => node.ip_address,
:port => node.ssh.port
}.merge(
contingent_ssh_options_for_node(node)
).merge(
ssh_options_override||{}
)
end
def self.options_from_args(args)
ssh_options = {}
if args[:port]
ssh_options[:port] = args[:port]
end
if args[:ip]
ssh_options[:host_name] = args[:ip]
end
if args[:auth_methods]
ssh_options[:auth_methods] = args[:auth_methods]
end
return ssh_options
end
def self.sanitize_command(cmd)
if cmd =~ /(^|\/| )rm / || cmd =~ /(^|\/| )unlink /
LeapCli.log :warning, "You probably don't want to do that. Run with --force if you are really sure."
exit(1)
else
cmd
end
end
private
def self.contingent_ssh_options_for_node(node)
opts = {}
if node.vagrant?
opts[:keys] = [LeapCli::Util::Vagrant.vagrant_ssh_key_file]
opts[:keys_only] = true # only use the keys specified above, and
# ignore whatever keys the ssh-agent is aware of.
opts[:paranoid] = false # we skip host checking for vagrant nodes,
# because fingerprint is different for everyone.
if LeapCli.logger.log_level <= 1
opts[:verbose] = :error # suppress all the warnings about adding
# host keys to known_hosts, since it is
# not actually doing that.
end
end
if !node.supported_ssh_host_key_algorithms.empty?
opts[:host_key] = node.supported_ssh_host_key_algorithms
end
return opts
end
def self.net_ssh_log_level
if DEBUG
case LeapCli.logger.log_level
when 1 then :error
when 2 then :info
else :debug
end
else
:fatal
end
end
end
end
end
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