1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
|
package network
import (
"fmt"
"net"
"github.com/containers/common/libnetwork/types"
"github.com/containers/common/libnetwork/util"
"github.com/containers/common/pkg/completion"
"github.com/containers/podman/v4/cmd/podman/common"
"github.com/containers/podman/v4/cmd/podman/parse"
"github.com/containers/podman/v4/cmd/podman/registry"
"github.com/containers/podman/v4/pkg/domain/entities"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
"github.com/spf13/cobra"
)
var (
networkCreateDescription = `create CNI networks for containers and pods`
networkCreateCommand = &cobra.Command{
Use: "create [options] [NAME]",
Short: "network create",
Long: networkCreateDescription,
RunE: networkCreate,
Args: cobra.MaximumNArgs(1),
ValidArgsFunction: completion.AutocompleteNone,
Example: `podman network create podman1`,
}
)
var (
networkCreateOptions entities.NetworkCreateOptions
labels []string
opts []string
ipamDriverFlagName = "ipam-driver"
ipamDriver string
)
func networkCreateFlags(cmd *cobra.Command) {
flags := cmd.Flags()
driverFlagName := "driver"
flags.StringVarP(&networkCreateOptions.Driver, driverFlagName, "d", types.DefaultNetworkDriver, "driver to manage the network")
_ = cmd.RegisterFlagCompletionFunc(driverFlagName, common.AutocompleteNetworkDriver)
optFlagName := "opt"
flags.StringArrayVarP(&opts, optFlagName, "o", nil, "Set driver specific options (default [])")
_ = cmd.RegisterFlagCompletionFunc(optFlagName, completion.AutocompleteNone)
gatewayFlagName := "gateway"
flags.IPSliceVar(&networkCreateOptions.Gateways, gatewayFlagName, nil, "IPv4 or IPv6 gateway for the subnet")
_ = cmd.RegisterFlagCompletionFunc(gatewayFlagName, completion.AutocompleteNone)
flags.BoolVar(&networkCreateOptions.Internal, "internal", false, "restrict external access from this network")
ipRangeFlagName := "ip-range"
flags.StringArrayVar(&networkCreateOptions.Ranges, ipRangeFlagName, nil, "allocate container IP from range")
_ = cmd.RegisterFlagCompletionFunc(ipRangeFlagName, completion.AutocompleteNone)
// TODO consider removing this for 4.0
macvlanFlagName := "macvlan"
flags.StringVar(&networkCreateOptions.MacVLAN, macvlanFlagName, "", "create a Macvlan connection based on this device")
// This option is deprecated
_ = flags.MarkHidden(macvlanFlagName)
labelFlagName := "label"
flags.StringArrayVar(&labels, labelFlagName, nil, "set metadata on a network")
_ = cmd.RegisterFlagCompletionFunc(labelFlagName, completion.AutocompleteNone)
flags.StringVar(&ipamDriver, ipamDriverFlagName, "", "IP Address Management Driver")
_ = cmd.RegisterFlagCompletionFunc(ipamDriverFlagName, common.AutocompleteNetworkIPAMDriver)
flags.BoolVar(&networkCreateOptions.IPv6, "ipv6", false, "enable IPv6 networking")
subnetFlagName := "subnet"
flags.StringArrayVar(&networkCreateOptions.Subnets, subnetFlagName, nil, "subnets in CIDR format")
_ = cmd.RegisterFlagCompletionFunc(subnetFlagName, completion.AutocompleteNone)
flags.BoolVar(&networkCreateOptions.DisableDNS, "disable-dns", false, "disable dns plugin")
}
func init() {
registry.Commands = append(registry.Commands, registry.CliCommand{
Command: networkCreateCommand,
Parent: networkCmd,
})
networkCreateFlags(networkCreateCommand)
}
func networkCreate(cmd *cobra.Command, args []string) error {
var (
name string
)
if len(args) > 0 {
name = args[0]
}
var err error
networkCreateOptions.Labels, err = parse.GetAllLabels([]string{}, labels)
if err != nil {
return errors.Wrap(err, "failed to parse labels")
}
networkCreateOptions.Options, err = parse.GetAllLabels([]string{}, opts)
if err != nil {
return errors.Wrapf(err, "unable to parse options")
}
network := types.Network{
Name: name,
Driver: networkCreateOptions.Driver,
Options: networkCreateOptions.Options,
Labels: networkCreateOptions.Labels,
IPv6Enabled: networkCreateOptions.IPv6,
DNSEnabled: !networkCreateOptions.DisableDNS,
Internal: networkCreateOptions.Internal,
}
if cmd.Flags().Changed(ipamDriverFlagName) {
network.IPAMOptions = map[string]string{
types.Driver: ipamDriver,
}
}
// old --macvlan option
if networkCreateOptions.MacVLAN != "" {
logrus.Warn("The --macvlan option is deprecated, use `--driver macvlan --opt parent=<device>` instead")
network.Driver = types.MacVLANNetworkDriver
network.NetworkInterface = networkCreateOptions.MacVLAN
} else if networkCreateOptions.Driver == types.MacVLANNetworkDriver {
// new -d macvlan --opt parent=... syntax
if parent, ok := network.Options["parent"]; ok {
network.NetworkInterface = parent
delete(network.Options, "parent")
}
}
if len(networkCreateOptions.Subnets) > 0 {
if len(networkCreateOptions.Gateways) > len(networkCreateOptions.Subnets) {
return errors.New("cannot set more gateways than subnets")
}
if len(networkCreateOptions.Ranges) > len(networkCreateOptions.Subnets) {
return errors.New("cannot set more ranges than subnets")
}
for i := range networkCreateOptions.Subnets {
subnet, err := types.ParseCIDR(networkCreateOptions.Subnets[i])
if err != nil {
return err
}
s := types.Subnet{
Subnet: subnet,
}
if len(networkCreateOptions.Ranges) > i {
leaseRange, err := parseRange(networkCreateOptions.Ranges[i])
if err != nil {
return err
}
s.LeaseRange = leaseRange
}
if len(networkCreateOptions.Gateways) > i {
s.Gateway = networkCreateOptions.Gateways[i]
}
network.Subnets = append(network.Subnets, s)
}
} else if len(networkCreateOptions.Ranges) > 0 || len(networkCreateOptions.Gateways) > 0 {
return errors.New("cannot set gateway or range without subnet")
}
response, err := registry.ContainerEngine().NetworkCreate(registry.Context(), network)
if err != nil {
return err
}
fmt.Println(response.Name)
return nil
}
func parseRange(iprange string) (*types.LeaseRange, error) {
_, subnet, err := net.ParseCIDR(iprange)
if err != nil {
return nil, err
}
startIP, err := util.FirstIPInSubnet(subnet)
if err != nil {
return nil, errors.Wrap(err, "failed to get first ip in range")
}
lastIP, err := util.LastIPInSubnet(subnet)
if err != nil {
return nil, errors.Wrap(err, "failed to get last ip in range")
}
return &types.LeaseRange{
StartIP: startIP,
EndIP: lastIP,
}, nil
}
|
