func NewOpenStack(config io.Reader) (*OpenStack, error) {
var cfg Config
err := gcfg.ReadInto(&cfg, config)
if err != nil {
glog.Warning("Failed to parse openstack configure file: %v", err)
return nil, err
}
provider, err := openstack.AuthenticatedClient(cfg.toAuthOptions())
if err != nil {
glog.Warning("Failed to auth openstack: %v", err)
return nil, err
}
identity, err := openstack.NewIdentityV2(provider, gophercloud.EndpointOpts{
Availability: gophercloud.AvailabilityAdmin,
})
if err != nil {
glog.Warning("Failed to find identity endpoint")
return nil, err
}
network, err := openstack.NewNetworkV2(provider, gophercloud.EndpointOpts{
Region: cfg.Global.Region,
})
if err != nil {
glog.Warning("Failed to find neutron endpoint: %v", err)
return nil, err
}
os := OpenStack{
identity: identity,
network: network,
provider: provider,
region: cfg.Global.Region,
lbOpts: cfg.LoadBalancer,
pluginOpts: cfg.Plugin,
ExtNetID: cfg.Global.ExtNetID,
}
// init plugin
if cfg.Plugin.PluginName != "" {
integrationBriage := "br-int"
if cfg.Plugin.IntegrationBridge != "" {
integrationBriage = cfg.Plugin.IntegrationBridge
}
plugin, _ := plugins.GetNetworkPlugin(cfg.Plugin.PluginName)
if plugin != nil {
plugin.Init(integrationBriage)
os.Plugin = plugin
}
}
return &os, nil
}
// NewNetworkV2Client returns a *ServiceClient for making calls to the
// OpenStack Networking v2 API. An error will be returned if authentication
// or client creation was not possible.
func NewNetworkV2Client() (*gophercloud.ServiceClient, error) {
ao, err := openstack.AuthOptionsFromEnv()
if err != nil {
return nil, err
}
client, err := openstack.AuthenticatedClient(ao)
if err != nil {
return nil, err
}
return openstack.NewNetworkV2(client, gophercloud.EndpointOpts{
Region: os.Getenv("OS_REGION_NAME"),
})
}
func NewNeutronMapper(g *graph.Graph, wsClient *shttp.WSAsyncClient, authURL, username, password, tenantName, regionName, domainName string, availability gophercloud.Availability) (*NeutronMapper, error) {
mapper := &NeutronMapper{graph: g, wsClient: wsClient}
opts := gophercloud.AuthOptions{
IdentityEndpoint: authURL,
Username: username,
Password: password,
TenantName: tenantName,
DomainName: domainName,
AllowReauth: true,
}
provider, err := openstack.AuthenticatedClient(opts)
if err != nil {
return nil, err
}
client, err := openstack.NewNetworkV2(provider, gophercloud.EndpointOpts{
Name: "neutron",
Region: regionName,
Availability: availability,
})
if err != nil {
return nil, err
}
mapper.client = client
// Create a cache with a default expiration time of 5 minutes, and which
// purges expired items every 30 seconds
expire := config.GetConfig().GetInt("cache.expire")
cleanup := config.GetConfig().GetInt("cache.cleanup")
mapper.cache = cache.New(time.Duration(expire)*time.Second, time.Duration(cleanup)*time.Second)
mapper.nodeUpdaterChan = make(chan graph.Identifier, 500)
g.AddEventListener(mapper)
return mapper, nil
}
// initialize uses our required environment variables to authenticate with
// OpenStack and create some clients we will use in the other methods
func (p *openstackp) initialize() (err error) {
// authenticate
opts, err := openstack.AuthOptionsFromEnv()
if err != nil {
return
}
provider, err := openstack.AuthenticatedClient(opts)
if err != nil {
return
}
// make a compute client
p.computeClient, err = openstack.NewComputeV2(provider, gophercloud.EndpointOpts{
Region: os.Getenv("OS_REGION_NAME"),
})
if err != nil {
return
}
// make a network client
p.networkClient, err = openstack.NewNetworkV2(provider, gophercloud.EndpointOpts{
//Name: "neutron", //*** "services can have the same Type but a different Name, which is why [...] Name [is] sometimes needed... but how do I see the available names?
Region: os.Getenv("OS_REGION_NAME"),
})
if err != nil {
return
}
// we need to know the network pool name *** does this have to be a user
// input/config option? Or can it be discovered?
p.poolName = os.Getenv("OS_POOL_NAME") // I made this one up, so we'll default to nova
if p.poolName == "" {
p.poolName = "nova"
}
p.externalNetworkID, err = networks.IDFromName(p.networkClient, p.poolName)
if err != nil {
return
}
// get the details of all the possible server flavors
p.fmap = make(map[string]Flavor)
pager := flavors.ListDetail(p.computeClient, flavors.ListOpts{})
err = pager.EachPage(func(page pagination.Page) (bool, error) {
flavorList, err := flavors.ExtractFlavors(page)
if err != nil {
return false, err
}
for _, f := range flavorList {
p.fmap[f.ID] = Flavor{
ID: f.ID,
Name: f.Name,
Cores: f.VCPUs,
RAM: f.RAM,
Disk: f.Disk,
}
}
return true, nil
})
return
}
func (c *Config) networkingV2Client(region string) (*gophercloud.ServiceClient, error) {
return openstack.NewNetworkV2(c.osClient, gophercloud.EndpointOpts{
Region: region,
Availability: c.getEndpointType(),
})
}
func TestNeutron(t *testing.T) {
authUrl := os.Getenv("OS_AUTH_URL")
username := os.Getenv("OS_USERNAME")
password := os.Getenv("OS_PASSWORD")
tenantName := os.Getenv("OS_TENANT_NAME")
regionName := os.Getenv("OS_REGION_NAME")
opts := gophercloud.AuthOptions{
IdentityEndpoint: authUrl,
Username: username,
Password: password,
TenantName: tenantName,
}
provider, err := openstack.AuthenticatedClient(opts)
if err != nil {
t.Fatal(err.Error())
}
client, err := openstack.NewNetworkV2(provider, gophercloud.EndpointOpts{
Name: "neutron",
Region: regionName,
Availability: gophercloud.AvailabilityPublic,
})
if err != nil {
t.Fatalf("Failed to create neutron client: %s", err.Error())
}
netResult := networks.Create(client, networks.CreateOpts{Name: "skydive-test-network"})
if netResult.Err != nil {
t.Fatalf("Failed to create neutron network: %s", netResult.Err.Error())
}
network, err := netResult.Extract()
if err != nil {
t.Fatalf("Failed to create neutron network: %s", err.Error())
}
subResult := subnets.Create(client, subnets.CreateOpts{Name: "skydive-test-subnet", NetworkID: network.ID, CIDR: "192.168.1.0/24", IPVersion: 4})
if subResult.Err != nil {
t.Fatalf("Failed to create neutron subnet: %s", subResult.Err.Error())
}
subnet, err := subResult.Extract()
if err != nil {
t.Fatalf("Failed to create neutron subnet: %s", err.Error())
}
portResult := ports.Create(client, ports.CreateOpts{NetworkID: network.ID, DeviceID: "skydive-123", DeviceOwner: "skydive-test"})
if portResult.Err != nil {
t.Fatalf("Failed to create neutron port: %s", subResult.Err.Error())
}
port, err := portResult.Extract()
if err != nil {
t.Fatalf("Failed to create neutron port: %s", err.Error())
}
defer ports.Delete(client, port.ID)
defer subnets.Delete(client, subnet.ID)
defer networks.Delete(client, network.ID)
authOptions := &shttp.AuthenticationOpts{
Username: username,
Password: password,
}
subID := port.ID[0:11]
dev := fmt.Sprintf("tap%s", subID)
ovsctl := `ovs-vsctl add-port br-int %s -- set Interface %s external-ids:iface-id=%s`
ovsctl += ` external-ids:iface-status=active external-ids:attached-mac=%s external-ids:vm-uuid=skydive-vm type=internal`
setupCmds := []helper.Cmd{
{fmt.Sprintf(ovsctl, dev, dev, port.ID, port.MACAddress), true},
{"sleep 1", true},
{fmt.Sprintf("ip link set %s up", dev), true},
}
tearDownCmds := []helper.Cmd{
{fmt.Sprintf("ovs-vsctl del-port %s", dev), true},
}
helper.ExecCmds(t, setupCmds...)
defer helper.ExecCmds(t, tearDownCmds...)
gh := helper.NewGremlinQueryHelper(authOptions)
// let neutron update the port
time.Sleep(5 * time.Second)
nodes := gh.GetNodesFromGremlinReply(t, `g.V().Has("Manager", "neutron", "ExtID/vm-uuid", "skydive-vm", "Name", "`+dev+`", "Neutron/PortID", "`+port.ID+`")`)
if len(nodes) != 1 {
t.Errorf("Should find the neutron port in the topology: %v", gh.GetNodesFromGremlinReply(t, `g.V()`))
}
}