mirror of
https://github.com/prometheus/prometheus.git
synced 2024-12-25 21:54:10 -08:00
103 lines
3.9 KiB
Go
103 lines
3.9 KiB
Go
// Copyright 2017 The Prometheus Authors
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package openstack
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"net"
|
|
|
|
"github.com/go-kit/log"
|
|
"github.com/gophercloud/gophercloud"
|
|
"github.com/gophercloud/gophercloud/openstack"
|
|
"github.com/gophercloud/gophercloud/openstack/compute/v2/extensions/hypervisors"
|
|
"github.com/gophercloud/gophercloud/pagination"
|
|
"github.com/pkg/errors"
|
|
"github.com/prometheus/common/model"
|
|
|
|
"github.com/prometheus/prometheus/discovery/targetgroup"
|
|
)
|
|
|
|
const (
|
|
openstackLabelHypervisorID = openstackLabelPrefix + "hypervisor_id"
|
|
openstackLabelHypervisorHostIP = openstackLabelPrefix + "hypervisor_host_ip"
|
|
openstackLabelHypervisorHostName = openstackLabelPrefix + "hypervisor_hostname"
|
|
openstackLabelHypervisorStatus = openstackLabelPrefix + "hypervisor_status"
|
|
openstackLabelHypervisorState = openstackLabelPrefix + "hypervisor_state"
|
|
openstackLabelHypervisorType = openstackLabelPrefix + "hypervisor_type"
|
|
)
|
|
|
|
// HypervisorDiscovery discovers OpenStack hypervisors.
|
|
type HypervisorDiscovery struct {
|
|
provider *gophercloud.ProviderClient
|
|
authOpts *gophercloud.AuthOptions
|
|
region string
|
|
logger log.Logger
|
|
port int
|
|
availability gophercloud.Availability
|
|
}
|
|
|
|
// newHypervisorDiscovery returns a new hypervisor discovery.
|
|
func newHypervisorDiscovery(provider *gophercloud.ProviderClient, opts *gophercloud.AuthOptions,
|
|
port int, region string, availability gophercloud.Availability, l log.Logger) *HypervisorDiscovery {
|
|
return &HypervisorDiscovery{provider: provider, authOpts: opts,
|
|
region: region, port: port, availability: availability, logger: l}
|
|
}
|
|
|
|
func (h *HypervisorDiscovery) refresh(ctx context.Context) ([]*targetgroup.Group, error) {
|
|
h.provider.Context = ctx
|
|
err := openstack.Authenticate(h.provider, *h.authOpts)
|
|
if err != nil {
|
|
return nil, errors.Wrap(err, "could not authenticate to OpenStack")
|
|
}
|
|
|
|
client, err := openstack.NewComputeV2(h.provider, gophercloud.EndpointOpts{
|
|
Region: h.region, Availability: h.availability,
|
|
})
|
|
if err != nil {
|
|
return nil, errors.Wrap(err, "could not create OpenStack compute session")
|
|
}
|
|
|
|
tg := &targetgroup.Group{
|
|
Source: fmt.Sprintf("OS_" + h.region),
|
|
}
|
|
// OpenStack API reference
|
|
// https://developer.openstack.org/api-ref/compute/#list-hypervisors-details
|
|
pagerHypervisors := hypervisors.List(client, nil)
|
|
err = pagerHypervisors.EachPage(func(page pagination.Page) (bool, error) {
|
|
hypervisorList, err := hypervisors.ExtractHypervisors(page)
|
|
if err != nil {
|
|
return false, errors.Wrap(err, "could not extract hypervisors")
|
|
}
|
|
for _, hypervisor := range hypervisorList {
|
|
labels := model.LabelSet{}
|
|
addr := net.JoinHostPort(hypervisor.HostIP, fmt.Sprintf("%d", h.port))
|
|
labels[model.AddressLabel] = model.LabelValue(addr)
|
|
labels[openstackLabelHypervisorID] = model.LabelValue(hypervisor.ID)
|
|
labels[openstackLabelHypervisorHostName] = model.LabelValue(hypervisor.HypervisorHostname)
|
|
labels[openstackLabelHypervisorHostIP] = model.LabelValue(hypervisor.HostIP)
|
|
labels[openstackLabelHypervisorStatus] = model.LabelValue(hypervisor.Status)
|
|
labels[openstackLabelHypervisorState] = model.LabelValue(hypervisor.State)
|
|
labels[openstackLabelHypervisorType] = model.LabelValue(hypervisor.HypervisorType)
|
|
tg.Targets = append(tg.Targets, labels)
|
|
}
|
|
return true, nil
|
|
})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return []*targetgroup.Group{tg}, nil
|
|
}
|