func configureContainerNetwork(config process.Env, configurer network.Configurer) error {
_, ipNet, err := net.ParseCIDR(config["network_cidr"])
if err != nil {
return err
}
mtu, err := strconv.ParseInt(config["container_iface_mtu"], 0, 64)
if err != nil {
return err
}
err = configurer.ConfigureContainer(&network.ContainerConfig{
Hostname: config["id"],
ContainerIntf: config["network_container_iface"],
ContainerIP: net.ParseIP(config["network_container_ip"]),
GatewayIP: net.ParseIP(config["network_host_ip"]),
Subnet: ipNet,
Mtu: int(mtu),
})
if err != nil {
return err
}
return nil
}
func configureHostNetwork(config process.Env, configurer network.Configurer) error {
_, ipNet, err := net.ParseCIDR(config["network_cidr"])
if err != nil {
return err
}
mtu, err := strconv.ParseInt(config["container_iface_mtu"], 0, 64)
if err != nil {
return err
}
// Temporary until PID is passed in as a parameter.
var containerPid int
_, err = fmt.Sscanf(os.Getenv("PID"), "%d", &containerPid)
if err != nil {
return fmt.Errorf("linux_backend: can't parse PID string from ENV: %v", err)
}
err = configurer.ConfigureHost(&network.HostConfig{
HostIntf: config["network_host_iface"],
BridgeName: config["bridge_iface"],
BridgeIP: net.ParseIP(config["network_host_ip"]),
ContainerIntf: config["network_container_iface"],
ContainerPid: containerPid,
Subnet: ipNet,
Mtu: int(mtu),
})
if err != nil {
return err
}
return nil
}