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[devel,wip] Collect metrics from Azure
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,131 @@ | ||
| package collector | ||
|
|
||
| import ( | ||
| "context" | ||
| "errors" | ||
| "fmt" | ||
| "regexp" | ||
| "strings" | ||
| "time" | ||
|
|
||
| "github.com/Azure/azure-sdk-for-go/profiles/2019-03-01/resources/mgmt/insights" | ||
| "github.com/Azure/go-autorest/autorest/azure" | ||
| "github.com/Azure/go-autorest/autorest/azure/auth" | ||
| "github.com/rapidloop/pgmetrics" | ||
| ) | ||
|
|
||
| const ( | ||
| flexibleServerMetrics = `backup_storage_used,cpu_percent,memory_percent,iops,disk_queue_depth,read_throughput,write_throughput,read_iops,write_iops,storage_percent,storage_used,storage_free,txlogs_storage_used,active_connections,network_bytes_egress,network_bytes_ingress,connections_failed,connections_succeeded,maximum_used_transactionIDs` | ||
| singleServerMetrics = `cpu_percent,memory_percent,io_consumption_percent,storage_percent,storage_used,storage_limit,serverlog_storage_percent,serverlog_storage_usage,serverlog_storage_limit,active_connections,connections_failed,backup_storage_used,network_bytes_egress,network_bytes_ingress,pg_replica_log_delay_in_seconds,pg_replica_log_delay_in_bytes` | ||
| citusMetrics = `cpu_percent,memory_percent,apps_reserved_memory_percent,iops,storage_percent,storage_used,active_connections,network_bytes_egress,network_bytes_ingress` | ||
| ) | ||
|
|
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| var rxResource = regexp.MustCompile(`(?i)^/subscriptions/([^/]{36})/resourceGroups/([^/]+)/providers/Microsoft.DBforPostgreSQL/(flexibleServers|servers|serverGroupsv2)/([^/]+)$`) | ||
|
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| func collectAzure(ctx context.Context, resourceID string, out *pgmetrics.Azure) error { | ||
|
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| // parse resource URI | ||
| m := rxResource.FindStringSubmatch(resourceID) | ||
| if len(m) != 5 { | ||
| return errors.New("invalid resource ID") | ||
| } | ||
| azSubID := m[1] | ||
| out.ResourceType = "Microsoft.DBforPostgreSQL/" + m[3] | ||
| out.ResourceName = m[4] | ||
| out.Metrics = make(map[string]float64) | ||
|
|
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| // setup authorizer | ||
| authorizer, err := auth.NewAuthorizerFromEnvironmentWithResource(azure.PublicCloud.ResourceManagerEndpoint) | ||
| if err != nil && err.Error() == "MSI not available" { | ||
| authorizer, err = auth.NewAuthorizerFromCLIWithResource(azure.PublicCloud.ResourceManagerEndpoint) | ||
| } | ||
| if err != nil { | ||
| return fmt.Errorf("failed to setup azure authorizer: %v", err) | ||
| } | ||
|
|
||
| // parameters for metrics query | ||
| to := time.Now().In(time.UTC) | ||
| from := to.Add(-5 * time.Minute) | ||
| timeRange := from.Format(time.RFC3339) + "/" + to.Format(time.RFC3339) | ||
| var interval string | ||
| var top int32 = 1 | ||
| var metricNames string | ||
| switch m[3] { | ||
| case "flexibleServers": | ||
| interval = "PT1M" | ||
| metricNames = flexibleServerMetrics | ||
| case "servers": | ||
| interval = "PT15M" | ||
| metricNames = singleServerMetrics | ||
| case "serverGroupsv2": | ||
| interval = "PT1M" | ||
| metricNames = citusMetrics | ||
| } | ||
|
|
||
| // query using a client | ||
| client := insights.NewMetricsClient(azSubID) | ||
| client.Authorizer = authorizer | ||
| resp, err := client.List( | ||
| ctx, | ||
| resourceID, | ||
| timeRange, | ||
| &interval, | ||
| metricNames, | ||
| "", // aggregation | ||
| &top, // top | ||
| "", // order by | ||
| "", // filter | ||
| insights.Data, // result type | ||
| "", // metric namespace | ||
| ) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to query Azure API: %v", err) | ||
| } | ||
|
|
||
| // parse response | ||
| out.ResourceRegion = *resp.Resourceregion | ||
| if resp.Value != nil { | ||
| for _, m := range *resp.Value { | ||
| if m.ID == nil || *m.ID == "" { | ||
| // log.Printf("warning: ignoring metric with no id: %v", m) | ||
| continue | ||
| } | ||
| if m.Timeseries == nil || len(*m.Timeseries) == 0 { | ||
| continue // no timeseries data, ignore quietly | ||
| } | ||
| ts := (*m.Timeseries)[len(*m.Timeseries)-1] | ||
| if ts.Data == nil { | ||
| continue // no timeseries data, ignore quietly | ||
| } | ||
| name := azGetMetricName(*m.ID) | ||
| for i := len(*ts.Data) - 1; i >= 0; i-- { | ||
| t := (*ts.Data)[i] | ||
| if t.TimeStamp == nil { | ||
| continue | ||
| } | ||
| if t.Average != nil { | ||
| out.Metrics[name] = *t.Average | ||
| break | ||
| } | ||
| if t.Total != nil { | ||
| out.Metrics[name] = *t.Total | ||
| break | ||
| } | ||
| if t.Maximum != nil { | ||
| out.Metrics[name] = *t.Maximum | ||
| break | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
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| return nil | ||
| } | ||
|
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| func azGetMetricName(id string) string { | ||
| i := strings.LastIndexByte(id, '/') | ||
| if i != -1 { | ||
| return id[int(i)+1:] | ||
| } | ||
| return id | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,14 +1,19 @@ | ||
| module github.com/rapidloop/pgmetrics | ||
|
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| require ( | ||
| github.com/Azure/azure-sdk-for-go v63.4.0+incompatible | ||
| github.com/Azure/go-autorest/autorest v0.11.27 | ||
| github.com/Azure/go-autorest/autorest/azure/auth v0.5.11 | ||
| github.com/Azure/go-autorest/autorest/to v0.4.0 // indirect | ||
| github.com/Azure/go-autorest/autorest/validation v0.3.1 // indirect | ||
| github.com/aws/aws-sdk-go v1.29.29 | ||
| github.com/dustin/go-humanize v0.0.0-20171111073723-bb3d318650d4 | ||
| github.com/howeyc/gopass v0.0.0-20170109162249-bf9dde6d0d2c | ||
| github.com/pborman/getopt v0.0.0-20170112200414-7148bc3a4c30 | ||
| github.com/rapidloop/pq v1.1.1 | ||
| github.com/xdg-go/stringprep v1.0.0 // indirect | ||
| github.com/xdg/stringprep v1.0.0 // indirect | ||
| golang.org/x/crypto v0.0.0-20191206172530-e9b2fee46413 | ||
| golang.org/x/crypto v0.0.0-20211215153901-e495a2d5b3d3 | ||
| ) | ||
|
|
||
| go 1.13 |
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