daemon

func Start ¶

func Start(ipt *iptables.IPTablesInstance, rulesFile string, continueOnHookFail bool) int

Start run fwdctl in daemon mode The flow has the following steps: - Open the rules file - Create all the defined forwards (running their on-create hooks) - Start listening on rules file changes - When file changes:

• Calculate the Diff between old and new ruleset
• Delete unwanted forwards (running their on-delete hooks)
• Create wanted forwards (running their on-create hooks)

- Listen for SIGTERM signals to gracefuly shutdown - When SIGTERM signal occurs:

• Delete all the applied forwards (running their on-delete hooks)
• Shutdown the daemon

When a hook fails and continueOnHookFail is false, the daemon logs the error, tears down its forwards and exits non-zero. When it is true, the failure is only logged and the daemon keeps running.

func Stop ¶

func Stop()

Stop send a SIGTERM signal to the daemon process