def main():
"""
Top-level function for Telepresence
"""
########################################
# Preliminaries: No changes to the machine or the cluster, no cleanup
# Capture environment info and the user's intent
# Check for a subcommand
with crash_reporting():
args = command_parse_args(None, only_for_commands=True)
if args is not None:
command_main(args)
with crash_reporting():
args = parse_args() # tab-completion stuff goes here
runner = Runner(Output(args.logfile), None, args.verbose)
span = runner.span()
runner.add_cleanup("Stop time tracking", span.end)
runner.kubectl = KubeInfo(runner, args)
start_proxy = proxy.setup(runner, args)
do_connect = connect.setup(runner, args)
get_remote_env, write_env_files = remote_env.setup(runner, args)
launch = outbound.setup(runner, args)
mount_remote = mount.setup(runner, args)
final_checks(runner, args)
# Usage tracking
call_scout(runner, args)
########################################
# Now it's okay to change things
with runner.cleanup_handling(), crash_reporting(runner):
# Set up the proxy pod (operation -> pod name)
remote_info = start_proxy(runner)
# Connect to the proxy (pod name -> ssh object)
socks_port, ssh = do_connect(runner, remote_info)
# Capture remote environment information (ssh object -> env info)
env = get_remote_env(runner, remote_info)
# Handle filesystem stuff
mount_dir = mount_remote(runner, env, ssh)
# Maybe write environment files
write_env_files(runner, env)
# Set up outbound networking (pod name, ssh object)
# Launch user command with the correct environment (...)
user_process = launch(
runner, remote_info, env, socks_port, ssh, mount_dir
)
wait_for_exit(runner, user_process)
def main():
"""
Top-level function for Telepresence
"""
with crash_reporting():
########################################
# Preliminaries: No changes to the machine or the cluster, no cleanup
# Capture environment info
args = parse_args() # tab-completion stuff goes here
runner = Runner(args.logfile, args.verbose)
span = runner.span()
runner.add_cleanup("Stop time tracking", span.end)
set_kube_command(runner, args)
with runner.cleanup_handling(), crash_reporting(runner):
########################################
# Intent: Fast, user prompts here, cleanup available
# Capture the user's intent
start_proxy = proxy.setup(runner, args)
do_connect = connect.setup(runner, args)
get_remote_env, write_env_files = remote_env.setup(runner, args)
launch = outbound.setup(runner, args)
mount_remote = mount.setup(runner, args)
final_checks(runner, args)
# Usage tracking
call_scout(runner, args)
########################################
# Action: Perform the user's intended operation(s)
# Now it's okay to change things
# Set up the proxy pod (operation -> pod name)
remote_info = start_proxy(runner)
# Connect to the proxy (pod name -> ssh object)
socks_port, ssh = do_connect(runner, remote_info)
# Capture remote environment information (ssh object -> env info)
env, pod_info = get_remote_env(runner, ssh, remote_info)
# Handle filesystem stuff
mount_dir = mount_remote(runner, env, ssh)
# Maybe write environment files
write_env_files(runner, env)
# Set up outbound networking (pod name, ssh object)
# Launch user command with the correct environment (...)
user_process = launch(
runner, remote_info, env, socks_port, ssh, mount_dir, pod_info
)
runner.wait_for_exit(user_process)
