| 1 | // SPDX-License-Identifier: GPL-3.0-or-later |
| 2 | |
| 3 | package consul |
| 4 | |
| 5 | import ( |
| 6 | "github.com/blang/semver/v4" |
| 7 | ) |
| 8 | |
| 9 | const ( |
| 10 | // https://developer.hashicorp.com/consul/api-docs/agent#read-configuration |
| 11 | urlPathAgentSelf = "/v1/agent/self" |
| 12 | ) |
| 13 | |
| 14 | type consulConfig struct { |
| 15 | Config struct { |
| 16 | Datacenter string |
| 17 | PrimaryDatacenter string |
| 18 | NodeName string |
| 19 | NodeID string |
| 20 | Server bool |
| 21 | Version string |
| 22 | } |
| 23 | DebugConfig struct { |
| 24 | Telemetry struct { |
| 25 | MetricsPrefix string |
| 26 | DisableHostname bool |
| 27 | PrometheusOpts struct { |
| 28 | Expiration string |
| 29 | Name string |
| 30 | } |
| 31 | } |
| 32 | Cloud struct { |
| 33 | AuthURL string |
| 34 | ClientID string |
| 35 | ClientSecret string |
| 36 | Hostname string |
| 37 | ResourceID string |
| 38 | ScadaAddress string |
| 39 | } |
| 40 | } |
| 41 | Stats struct { |
| 42 | License struct { |
| 43 | ID string `json:"id"` |
| 44 | } `json:"license"` |
| 45 | } |
| 46 | } |
| 47 | |
| 48 | func (c *Collector) collectConfiguration() error { |
| 49 | req, err := c.createRequest(urlPathAgentSelf) |
| 50 | if err != nil { |
| 51 | return err |
| 52 | } |
| 53 | |
| 54 | var cfg consulConfig |
| 55 | |
| 56 | if err := c.client().RequestJSON(req, &cfg); err != nil { |
| 57 | return err |
| 58 | } |
| 59 | |
| 60 | c.cfg = &cfg |
| 61 | c.Debugf("consul config: %+v", cfg) |
| 62 | |
| 63 | if !c.isTelemetryPrometheusEnabled() { |
| 64 | c.Warning("export of Prometheus metrics is disabled") |
| 65 | } |
| 66 | |
| 67 | ver, err := semver.New(c.cfg.Config.Version) |
| 68 | if err != nil { |
| 69 | c.Warningf("error on parsing Consul version '%s': %v", c.cfg.Config.Version, err) |
| 70 | return nil |
| 71 | } |
| 72 | |
| 73 | c.version = ver |
| 74 | |
| 75 | return nil |
| 76 | } |