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Simplify hasUserDefinedIPAddress, and centralize validation

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Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Sebastiaan van Stijn 2019-03-20 10:15:10 +01:00
parent 20dde01848
commit ebe0174f22
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GPG key ID: 76698F39D527CE8C
1 changed files with 14 additions and 12 deletions
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26
daemon/container_operations.go
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@ -592,9 +592,9 @@ func (daemon *Daemon) getNetworkSandbox(container *container.Container) libnetwo
return sb
}
// hasUserDefinedIPAddress returns whether the passed endpoint configuration contains IP address configuration
func hasUserDefinedIPAddress(epConfig *networktypes.EndpointSettings) bool {
return epConfig != nil && epConfig.IPAMConfig != nil && (len(epConfig.IPAMConfig.IPv4Address) > 0 || len(epConfig.IPAMConfig.IPv6Address) > 0)
// hasUserDefinedIPAddress returns whether the passed IPAM configuration contains IP address configuration
func hasUserDefinedIPAddress(ipamConfig *networktypes.EndpointIPAMConfig) bool {
return ipamConfig != nil && (len(ipamConfig.IPv4Address) > 0 || len(ipamConfig.IPv6Address) > 0)
}
// User specified ip address is acceptable only for networks with user specified subnets.
@ -602,9 +602,18 @@ func validateNetworkingConfig(n libnetwork.Network, epConfig *networktypes.Endpo
if n == nil || epConfig == nil {
return nil
}
if !hasUserDefinedIPAddress(epConfig) {
if !containertypes.NetworkMode(n.Name()).IsUserDefined() {
if hasUserDefinedIPAddress(epConfig.IPAMConfig) && !enableIPOnPredefinedNetwork() {
return runconfig.ErrUnsupportedNetworkAndIP
}
if len(epConfig.Aliases) > 0 && !serviceDiscoveryOnDefaultNetwork() {
return runconfig.ErrUnsupportedNetworkAndAlias
}
}
if !hasUserDefinedIPAddress(epConfig.IPAMConfig) {
return nil
}
_, _, nwIPv4Configs, nwIPv6Configs := n.Info().IpamConfig()
for _, s := range []struct {
ipConfigured bool
@ -653,14 +662,7 @@ func cleanOperationalData(es *network.EndpointSettings) {
func (daemon *Daemon) updateNetworkConfig(container *container.Container, n libnetwork.Network, endpointConfig *networktypes.EndpointSettings, updateSettings bool) error {
if !containertypes.NetworkMode(n.Name()).IsUserDefined() {
if hasUserDefinedIPAddress(endpointConfig) && !enableIPOnPredefinedNetwork() {
return runconfig.ErrUnsupportedNetworkAndIP
}
if endpointConfig != nil && len(endpointConfig.Aliases) > 0 && !serviceDiscoveryOnDefaultNetwork() {
return runconfig.ErrUnsupportedNetworkAndAlias
}
} else {
if containertypes.NetworkMode(n.Name()).IsUserDefined() {
addShortID := true
shortID := stringid.TruncateID(container.ID)
for _, alias := range endpointConfig.Aliases {