Read configuration after flags making this the priority:
1- Apply configuration from file.
2- Apply configuration from flags.
Reload configuration when a signal is received, USR2 in Linux:
- Reload router if the debug configuration changes.
- Reload daemon labels.
- Reload cluster discovery.
Signed-off-by: David Calavera <david.calavera@gmail.com>
Upstream-commit: 677a6b3506107468ed8c00331991afd9176fa0b9
Component: engine
This sets up the umask so that it's the same on all systems.
Signed-off-by: Cristian Staretu <cristian.staretu@gmail.com>
Upstream-commit: 6578ad90c307c5500a7998819743be88f63ef2b3
Component: engine
