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|
/*
Package subnets contains functionality for working with Neutron subnet
resources. A subnet represents an IP address block that can be used to
assign IP addresses to virtual instances. Each subnet must have a CIDR and
must be associated with a network. IPs can either be selected from the whole
subnet CIDR or from allocation pools specified by the user.
A subnet can also have a gateway, a list of DNS name servers, and host routes.
This information is pushed to instances whose interfaces are associated with
the subnet.
Example to List Subnets
listOpts := subnets.ListOpts{
IPVersion: 4,
}
allPages, err := subnets.List(networkClient, listOpts).AllPages()
if err != nil {
panic(err)
}
allSubnets, err := subnets.ExtractSubnets(allPages)
if err != nil {
panic(err)
}
for _, subnet := range allSubnets {
fmt.Printf("%+v\n", subnet)
}
Example to Create a Subnet With Specified Gateway
var gatewayIP = "192.168.199.1"
createOpts := subnets.CreateOpts{
NetworkID: "d32019d3-bc6e-4319-9c1d-6722fc136a22",
IPVersion: 4,
CIDR: "192.168.199.0/24",
GatewayIP: &gatewayIP,
AllocationPools: []subnets.AllocationPool{
{
Start: "192.168.199.2",
End: "192.168.199.254",
},
},
DNSNameservers: []string{"foo"},
ServiceTypes: []string{"network:floatingip"},
}
subnet, err := subnets.Create(networkClient, createOpts).Extract()
if err != nil {
panic(err)
}
Example to Create a Subnet With No Gateway
var noGateway = ""
createOpts := subnets.CreateOpts{
NetworkID: "d32019d3-bc6e-4319-9c1d-6722fc136a23",
IPVersion: 4,
CIDR: "192.168.1.0/24",
GatewayIP: &noGateway,
AllocationPools: []subnets.AllocationPool{
{
Start: "192.168.1.2",
End: "192.168.1.254",
},
},
DNSNameservers: []string{},
}
subnet, err := subnets.Create(networkClient, createOpts).Extract()
if err != nil {
panic(err)
}
Example to Create a Subnet With a Default Gateway
createOpts := subnets.CreateOpts{
NetworkID: "d32019d3-bc6e-4319-9c1d-6722fc136a23",
IPVersion: 4,
CIDR: "192.168.1.0/24",
AllocationPools: []subnets.AllocationPool{
{
Start: "192.168.1.2",
End: "192.168.1.254",
},
},
DNSNameservers: []string{},
}
subnet, err := subnets.Create(networkClient, createOpts).Extract()
if err != nil {
panic(err)
}
Example to Update a Subnet
subnetID := "db77d064-e34f-4d06-b060-f21e28a61c23"
dnsNameservers := []string{"8.8.8.8"}
serviceTypes := []string{"network:floatingip", "network:routed"}
name := "new_name"
updateOpts := subnets.UpdateOpts{
Name: &name,
DNSNameservers: &dnsNameservers,
ServiceTypes: &serviceTypes,
}
subnet, err := subnets.Update(networkClient, subnetID, updateOpts).Extract()
if err != nil {
panic(err)
}
Example to Remove a Gateway From a Subnet
var noGateway = ""
subnetID := "db77d064-e34f-4d06-b060-f21e28a61c23"
updateOpts := subnets.UpdateOpts{
GatewayIP: &noGateway,
}
subnet, err := subnets.Update(networkClient, subnetID, updateOpts).Extract()
if err != nil {
panic(err)
}
Example to Delete a Subnet
subnetID := "db77d064-e34f-4d06-b060-f21e28a61c23"
err := subnets.Delete(networkClient, subnetID).ExtractErr()
if err != nil {
panic(err)
}
*/
package subnets
|
