mirror of
https://github.com/prometheus/prometheus.git
synced 2024-11-15 10:04:07 -08:00
111 lines
4.6 KiB
Go
111 lines
4.6 KiB
Go
// Copyright 2020 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 moby
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"net"
|
|
"strconv"
|
|
|
|
"github.com/docker/docker/api/types"
|
|
"github.com/prometheus/common/model"
|
|
|
|
"github.com/prometheus/prometheus/discovery/targetgroup"
|
|
"github.com/prometheus/prometheus/util/strutil"
|
|
)
|
|
|
|
const (
|
|
swarmLabelNodePrefix = swarmLabel + "node_"
|
|
swarmLabelNodeAddress = swarmLabelNodePrefix + "address"
|
|
swarmLabelNodeAvailability = swarmLabelNodePrefix + "availability"
|
|
swarmLabelNodeEngineVersion = swarmLabelNodePrefix + "engine_version"
|
|
swarmLabelNodeHostname = swarmLabelNodePrefix + "hostname"
|
|
swarmLabelNodeID = swarmLabelNodePrefix + "id"
|
|
swarmLabelNodeLabelPrefix = swarmLabelNodePrefix + "label_"
|
|
swarmLabelNodeManagerAddr = swarmLabelNodePrefix + "manager_address"
|
|
swarmLabelNodeManagerLeader = swarmLabelNodePrefix + "manager_leader"
|
|
swarmLabelNodeManagerReachability = swarmLabelNodePrefix + "manager_reachability"
|
|
swarmLabelNodePlatformArchitecture = swarmLabelNodePrefix + "platform_architecture"
|
|
swarmLabelNodePlatformOS = swarmLabelNodePrefix + "platform_os"
|
|
swarmLabelNodeRole = swarmLabelNodePrefix + "role"
|
|
swarmLabelNodeStatus = swarmLabelNodePrefix + "status"
|
|
)
|
|
|
|
func (d *Discovery) refreshNodes(ctx context.Context) ([]*targetgroup.Group, error) {
|
|
tg := &targetgroup.Group{
|
|
Source: "DockerSwarm",
|
|
}
|
|
|
|
nodes, err := d.client.NodeList(ctx, types.NodeListOptions{Filters: d.filters})
|
|
if err != nil {
|
|
return nil, fmt.Errorf("error while listing swarm nodes: %w", err)
|
|
}
|
|
|
|
for _, n := range nodes {
|
|
labels := model.LabelSet{
|
|
swarmLabelNodeID: model.LabelValue(n.ID),
|
|
swarmLabelNodeRole: model.LabelValue(n.Spec.Role),
|
|
swarmLabelNodeAvailability: model.LabelValue(n.Spec.Availability),
|
|
swarmLabelNodeHostname: model.LabelValue(n.Description.Hostname),
|
|
swarmLabelNodePlatformArchitecture: model.LabelValue(n.Description.Platform.Architecture),
|
|
swarmLabelNodePlatformOS: model.LabelValue(n.Description.Platform.OS),
|
|
swarmLabelNodeEngineVersion: model.LabelValue(n.Description.Engine.EngineVersion),
|
|
swarmLabelNodeStatus: model.LabelValue(n.Status.State),
|
|
swarmLabelNodeAddress: model.LabelValue(n.Status.Addr),
|
|
}
|
|
if n.ManagerStatus != nil {
|
|
labels[swarmLabelNodeManagerLeader] = model.LabelValue(fmt.Sprintf("%t", n.ManagerStatus.Leader))
|
|
labels[swarmLabelNodeManagerReachability] = model.LabelValue(n.ManagerStatus.Reachability)
|
|
labels[swarmLabelNodeManagerAddr] = model.LabelValue(n.ManagerStatus.Addr)
|
|
}
|
|
|
|
for k, v := range n.Spec.Labels {
|
|
ln := strutil.SanitizeLabelName(k)
|
|
labels[model.LabelName(swarmLabelNodeLabelPrefix+ln)] = model.LabelValue(v)
|
|
}
|
|
|
|
addr := net.JoinHostPort(n.Status.Addr, strconv.FormatUint(uint64(d.port), 10))
|
|
labels[model.AddressLabel] = model.LabelValue(addr)
|
|
|
|
tg.Targets = append(tg.Targets, labels)
|
|
}
|
|
return []*targetgroup.Group{tg}, nil
|
|
}
|
|
|
|
func (d *Discovery) getNodesLabels(ctx context.Context) (map[string]map[string]string, error) {
|
|
nodes, err := d.client.NodeList(ctx, types.NodeListOptions{})
|
|
if err != nil {
|
|
return nil, fmt.Errorf("error while listing swarm nodes: %w", err)
|
|
}
|
|
labels := make(map[string]map[string]string, len(nodes))
|
|
for _, n := range nodes {
|
|
labels[n.ID] = map[string]string{
|
|
swarmLabelNodeID: n.ID,
|
|
swarmLabelNodeRole: string(n.Spec.Role),
|
|
swarmLabelNodeAddress: n.Status.Addr,
|
|
swarmLabelNodeAvailability: string(n.Spec.Availability),
|
|
swarmLabelNodeHostname: n.Description.Hostname,
|
|
swarmLabelNodePlatformArchitecture: n.Description.Platform.Architecture,
|
|
swarmLabelNodePlatformOS: n.Description.Platform.OS,
|
|
swarmLabelNodeStatus: string(n.Status.State),
|
|
}
|
|
for k, v := range n.Spec.Labels {
|
|
ln := strutil.SanitizeLabelName(k)
|
|
labels[n.ID][swarmLabelNodeLabelPrefix+ln] = v
|
|
}
|
|
}
|
|
return labels, nil
|
|
}
|