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Handle error case when fixed-cidr-ipv6 is empty

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When IPv6 is enabled, make sure fixed-cidr-ipv6 is set
by the user since there is no default IPv6 local subnet
in the IPAM

Signed-off-by: Arko Dasgupta <arko.dasgupta@docker.com>
This commit is contained in:
Arko Dasgupta 2020-01-10 18:53:59 -08:00
parent a9507c6f76
commit bdad16b0ee
1 changed files with 3 additions and 1 deletions
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4
daemon/daemon_unix.go
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@ -1018,7 +1018,9 @@ func initBridgeDriver(controller libnetwork.NetworkController, config *config.Co
ipamV6Conf *libnetwork.IpamConf
)
if config.BridgeConfig.FixedCIDRv6 != "" {
if config.BridgeConfig.EnableIPv6 && config.BridgeConfig.FixedCIDRv6 == "" {
return errdefs.InvalidParameter(errors.New("IPv6 is enabled for the default bridge, but no subnet is configured. Specify an IPv6 subnet using --fixed-cidr-v6"))
} else if config.BridgeConfig.FixedCIDRv6 != "" {
_, fCIDRv6, err := net.ParseCIDR(config.BridgeConfig.FixedCIDRv6)
if err != nil {
return err