podman network create

initial implementation of network create.  we only support bridging
networks with this first pass.

Signed-off-by: baude <bbaude@redhat.com>

3 files changed, 84 insertions, 1 deletions

diff --git a/cmd/podman/cliconfig/config.go b/cmd/podman/cliconfig/config.go
index 98e7aed4b..812cc1f51 100644
--- a/cmd/podman/cliconfig/config.go
+++ b/cmd/podman/cliconfig/config.go
@@ -1,6 +1,8 @@
 package cliconfig
 
 import (
+	"net"
+
 	"github.com/spf13/cobra"
 )
 
@@ -259,6 +261,17 @@ type MountValues struct {
 	Latest  bool
 }
 
+type NetworkCreateValues struct {
+	PodmanCommand
+	Driver     string
+	Gateway    net.IP
+	Internal   bool
+	IPamDriver string
+	IPRange    net.IPNet
+	IPV6       bool
+	Network    net.IPNet
+}
+
 type NetworkListValues struct {
 	PodmanCommand
 	Filter []string
diff --git a/cmd/podman/network.go b/cmd/podman/network.go
index 83a5e71ab..702593e5c 100644
--- a/cmd/podman/network.go
+++ b/cmd/podman/network.go
@@ -17,8 +17,8 @@ var networkcheckCommand = cliconfig.PodmanCommand{
 	},
 }
 
-// Commands that are universally implemented
 var networkcheckCommands = []*cobra.Command{
+	_networkCreateCommand,
 	_networkinspectCommand,
 	_networklistCommand,
 	_networkrmCommand,
diff --git a/cmd/podman/network_create.go b/cmd/podman/network_create.go
new file mode 100644
index 000000000..378a92568
--- /dev/null
+++ b/cmd/podman/network_create.go
@@ -0,0 +1,70 @@
+// +build !remoteclient
+
+package main
+
+import (
+	"fmt"
+	"github.com/containers/libpod/pkg/network"
+	"net"
+
+	"github.com/containers/libpod/cmd/podman/cliconfig"
+	"github.com/containers/libpod/pkg/adapter"
+	"github.com/containers/libpod/pkg/rootless"
+	"github.com/pkg/errors"
+	"github.com/spf13/cobra"
+)
+
+var (
+	networkCreateCommand     cliconfig.NetworkCreateValues
+	networkCreateDescription = `create CNI networks for containers and pods`
+	_networkCreateCommand    = &cobra.Command{
+		Use:   "create [flags] [NETWORK]",
+		Short: "network create",
+		Long:  networkCreateDescription,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			networkCreateCommand.InputArgs = args
+			networkCreateCommand.GlobalFlags = MainGlobalOpts
+			networkCreateCommand.Remote = remoteclient
+			return networkcreateCmd(&networkCreateCommand)
+		},
+		Example: `podman network create podman1`,
+	}
+)
+
+func init() {
+	networkCreateCommand.Command = _networkCreateCommand
+	networkCreateCommand.SetHelpTemplate(HelpTemplate())
+	networkCreateCommand.SetUsageTemplate(UsageTemplate())
+	flags := networkCreateCommand.Flags()
+	flags.StringVarP(&networkCreateCommand.Driver, "driver", "d", "bridge", "driver to manage the network")
+	flags.IPVar(&networkCreateCommand.Gateway, "gateway", nil, "IPv4 or IPv6 gateway for the subnet")
+	flags.BoolVar(&networkCreateCommand.Internal, "internal", false, "restrict external access from this network")
+	flags.IPNetVar(&networkCreateCommand.IPRange, "ip-range", net.IPNet{}, "allocate container IP from range")
+	// TODO not supported yet
+	//flags.StringVar(&networkCreateCommand.IPamDriver, "ipam-driver", "",  "IP Address Management Driver")
+	// TODO enable when IPv6 is working
+	//flags.BoolVar(&networkCreateCommand.IPV6, "IPv6", false, "enable IPv6 networking")
+	flags.IPNetVar(&networkCreateCommand.Network, "subnet", net.IPNet{}, "subnet in CIDR format")
+
+}
+
+func networkcreateCmd(c *cliconfig.NetworkCreateValues) error {
+	if err := network.IsSupportedDriver(c.Driver); err != nil {
+		return err
+	}
+	if rootless.IsRootless() && !remoteclient {
+		return errors.New("network create is not supported for rootless mode")
+	}
+	if len(c.InputArgs) > 1 {
+		return errors.Errorf("only one network can be created at a time")
+	}
+	runtime, err := adapter.GetRuntimeNoStore(getContext(), &c.PodmanCommand)
+	if err != nil {
+		return err
+	}
+	fileName, err := runtime.NetworkCreate(c)
+	if err == nil {
+		fmt.Println(fileName)
+	}
+	return err
+}