// Get performs lazy initalization of client for given tenant using given auth options.
// If optional parameter givent its used as authenticated client
func (self CachedNovas) Get(auth gophercloud.AuthOptions, tenant string, providers ...*gophercloud.ProviderClient) (v2.NovaV2, error) {
cached, ok := self[tenant]
if ok {
return cached, nil
}
var provider *gophercloud.ProviderClient
if len(providers) > 0 {
provider = providers[0]
} else {
newAuth := authNoTenant(auth)
newAuth.TenantName = tenant
provider2, err := openstack.AuthenticatedClient(newAuth)
if err != nil {
return v2.NovaV2{}, fmt.Errorf("authentication failed: (%v)", err)
}
provider = provider2
}
client, err := openstack.NewComputeV2(provider, gophercloud.EndpointOpts{})
if err != nil {
return v2.NovaV2{}, fmt.Errorf("retrieving endpoint failed: (%v)", err)
}
self[tenant] = v2.NovaV2{Client: client}
return self[tenant], nil
}
// NewComputeV2Client returns a *ServiceClient for making calls
// to the OpenStack Compute v2 API. An error will be returned
// if authentication or client creation was not possible.
func NewComputeV2Client() (*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.NewComputeV2(client, gophercloud.EndpointOpts{
Region: os.Getenv("OS_REGION_NAME"),
})
}
func (c *AccessConfig) computeV2Client() (*gophercloud.ServiceClient, error) {
return openstack.NewComputeV2(c.osClient, gophercloud.EndpointOpts{
Region: c.Region,
Availability: c.getEndpointType(),
})
}
// 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
}