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metrics.go
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metrics.go
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package cloudwatch
import (
"encoding/json"
"sort"
"strings"
"sync"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awsutil"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/cloudwatch"
"github.com/grafana/grafana/pkg/metrics"
"github.com/grafana/grafana/pkg/middleware"
"github.com/grafana/grafana/pkg/util"
)
var metricsMap map[string][]string
var dimensionsMap map[string][]string
type CustomMetricsCache struct {
Expire time.Time
Cache []string
}
var customMetricsMetricsMap map[string]map[string]map[string]*CustomMetricsCache
var customMetricsDimensionsMap map[string]map[string]map[string]*CustomMetricsCache
func init() {
metricsMap = map[string][]string{
"AWS/ApiGateway": {"4XXError", "5XXError", "CacheHitCount", "CacheMissCount", "Count", "IntegrationLatency", "Latency"},
"AWS/ApplicationELB": {"ActiveConnectionCount", "ClientTLSNegotiationErrorCount", "HealthyHostCount", "HTTPCode_ELB_4XX_Count", "HTTPCode_ELB_5XX_Count", "HTTPCode_Target_2XX_Count", "HTTPCode_Target_3XX_Count", "HTTPCode_Target_4XX_Count", "HTTPCode_Target_5XX_Count", "NewConnectionCount", "ProcessedBytes", "RejectedConnectionCount", "RequestCount", "TargetConnectionErrorCount", "TargetResponseTime", "TargetTLSNegotiationErrorCount", "UnHealthyHostCount"},
"AWS/AutoScaling": {"GroupMinSize", "GroupMaxSize", "GroupDesiredCapacity", "GroupInServiceInstances", "GroupPendingInstances", "GroupStandbyInstances", "GroupTerminatingInstances", "GroupTotalInstances"},
"AWS/Billing": {"EstimatedCharges"},
"AWS/CloudFront": {"Requests", "BytesDownloaded", "BytesUploaded", "TotalErrorRate", "4xxErrorRate", "5xxErrorRate"},
"AWS/CloudSearch": {"SuccessfulRequests", "SearchableDocuments", "IndexUtilization", "Partitions"},
"AWS/DynamoDB": {"ConditionalCheckFailedRequests", "ConsumedReadCapacityUnits", "ConsumedWriteCapacityUnits", "OnlineIndexConsumedWriteCapacity", "OnlineIndexPercentageProgress", "OnlineIndexThrottleEvents", "ProvisionedReadCapacityUnits", "ProvisionedWriteCapacityUnits", "ReadThrottleEvents", "ReturnedBytes", "ReturnedItemCount", "ReturnedRecordsCount", "SuccessfulRequestLatency", "SystemErrors", "ThrottledRequests", "UserErrors", "WriteThrottleEvents"},
"AWS/EBS": {"VolumeReadBytes", "VolumeWriteBytes", "VolumeReadOps", "VolumeWriteOps", "VolumeTotalReadTime", "VolumeTotalWriteTime", "VolumeIdleTime", "VolumeQueueLength", "VolumeThroughputPercentage", "VolumeConsumedReadWriteOps", "BurstBalance"},
"AWS/EC2": {"CPUCreditUsage", "CPUCreditBalance", "CPUUtilization", "DiskReadOps", "DiskWriteOps", "DiskReadBytes", "DiskWriteBytes", "NetworkIn", "NetworkOut", "NetworkPacketsIn", "NetworkPacketsOut", "StatusCheckFailed", "StatusCheckFailed_Instance", "StatusCheckFailed_System"},
"AWS/EC2Spot": {"AvailableInstancePoolsCount", "BidsSubmittedForCapacity", "EligibleInstancePoolCount", "FulfilledCapacity", "MaxPercentCapacityAllocation", "PendingCapacity", "PercentCapacityAllocation", "TargetCapacity", "TerminatingCapacity"},
"AWS/ECS": {"CPUReservation", "MemoryReservation", "CPUUtilization", "MemoryUtilization"},
"AWS/EFS": {"BurstCreditBalance", "ClientConnections", "DataReadIOBytes", "DataWriteIOBytes", "MetadataIOBytes", "TotalIOBytes", "PermittedThroughput", "PercentIOLimit"},
"AWS/ELB": {"HealthyHostCount", "UnHealthyHostCount", "RequestCount", "Latency", "HTTPCode_ELB_4XX", "HTTPCode_ELB_5XX", "HTTPCode_Backend_2XX", "HTTPCode_Backend_3XX", "HTTPCode_Backend_4XX", "HTTPCode_Backend_5XX", "BackendConnectionErrors", "SurgeQueueLength", "SpilloverCount"},
"AWS/ElastiCache": {
"CPUUtilization", "FreeableMemory", "NetworkBytesIn", "NetworkBytesOut", "SwapUsage",
"BytesUsedForCacheItems", "BytesReadIntoMemcached", "BytesWrittenOutFromMemcached", "CasBadval", "CasHits", "CasMisses", "CmdFlush", "CmdGet", "CmdSet", "CurrConnections", "CurrItems", "DecrHits", "DecrMisses", "DeleteHits", "DeleteMisses", "Evictions", "GetHits", "GetMisses", "IncrHits", "IncrMisses", "Reclaimed",
"BytesUsedForHash", "CmdConfigGet", "CmdConfigSet", "CmdTouch", "CurrConfig", "EvictedUnfetched", "ExpiredUnfetched", "SlabsMoved", "TouchHits", "TouchMisses",
"NewConnections", "NewItems", "UnusedMemory",
"BytesUsedForCache", "CacheHits", "CacheMisses", "CurrConnections", "Evictions", "HyperLogLogBasedCmds", "NewConnections", "Reclaimed", "ReplicationBytes", "ReplicationLag", "SaveInProgress",
"CurrItems", "GetTypeCmds", "HashBasedCmds", "KeyBasedCmds", "ListBasedCmds", "SetBasedCmds", "SetTypeCmds", "SortedSetBasedCmds", "StringBasedCmds",
},
"AWS/ElasticBeanstalk": {
"EnvironmentHealth",
"ApplicationLatencyP10", "ApplicationLatencyP50", "ApplicationLatencyP75", "ApplicationLatencyP85", "ApplicationLatencyP90", "ApplicationLatencyP95", "ApplicationLatencyP99", "ApplicationLatencyP99.9",
"ApplicationRequests2xx", "ApplicationRequests3xx", "ApplicationRequests4xx", "ApplicationRequests5xx", "ApplicationRequestsTotal",
"CPUIdle", "CPUIowait", "CPUIrq", "CPUNice", "CPUSoftirq", "CPUSystem", "CPUUser",
"InstanceHealth", "InstancesDegraded", "InstancesInfo", "InstancesNoData", "InstancesOk", "InstancesPending", "InstancesSevere", "InstancesUnknown", "InstancesWarning",
"LoadAverage1min", "LoadAverage5min",
"RootFilesystemUtil",
},
"AWS/ElasticMapReduce": {"IsIdle", "JobsRunning", "JobsFailed",
"MapTasksRunning", "MapTasksRemaining", "MapSlotsOpen", "RemainingMapTasksPerSlot", "ReduceTasksRunning", "ReduceTasksRemaining", "ReduceSlotsOpen",
"CoreNodesRunning", "CoreNodesPending", "LiveDataNodes", "TaskNodesRunning", "TaskNodesPending", "LiveTaskTrackers",
"S3BytesWritten", "S3BytesRead", "HDFSUtilization", "HDFSBytesRead", "HDFSBytesWritten", "MissingBlocks", "TotalLoad",
"BackupFailed", "MostRecentBackupDuration", "TimeSinceLastSuccessfulBackup",
"IsIdle", "ContainerAllocated", "ContainerReserved", "ContainerPending", "AppsCompleted", "AppsFailed", "AppsKilled", "AppsPending", "AppsRunning", "AppsSubmitted",
"CoreNodesRunning", "CoreNodesPending", "LiveDataNodes", "MRTotalNodes", "MRActiveNodes", "MRLostNodes", "MRUnhealthyNodes", "MRDecommissionedNodes", "MRRebootedNodes",
"S3BytesWritten", "S3BytesRead", "HDFSUtilization", "HDFSBytesRead", "HDFSBytesWritten", "MissingBlocks", "CorruptBlocks", "TotalLoad", "MemoryTotalMB", "MemoryReservedMB", "MemoryAvailableMB", "MemoryAllocatedMB", "PendingDeletionBlocks", "UnderReplicatedBlocks", "DfsPendingReplicationBlocks", "CapacityRemainingGB",
"HbaseBackupFailed", "MostRecentBackupDuration", "TimeSinceLastSuccessfulBackup"},
"AWS/ES": {"ClusterStatus.green", "ClusterStatus.yellow", "ClusterStatus.red", "Nodes", "SearchableDocuments", "DeletedDocuments", "CPUUtilization", "FreeStorageSpace", "JVMMemoryPressure", "AutomatedSnapshotFailure", "MasterCPUUtilization", "MasterFreeStorageSpace", "MasterJVMMemoryPressure", "ReadLatency", "WriteLatency", "ReadThroughput", "WriteThroughput", "DiskQueueLength", "ReadIOPS", "WriteIOPS"},
"AWS/Events": {"Invocations", "FailedInvocations", "TriggeredRules", "MatchedEvents", "ThrottledRules"},
"AWS/Firehose": {"DeliveryToElasticsearch.Bytes", "DeliveryToElasticsearch.Records", "DeliveryToElasticsearch.Success", "DeliveryToRedshift.Bytes", "DeliveryToRedshift.Records", "DeliveryToRedshift.Success", "DeliveryToS3.Bytes", "DeliveryToS3.DataFreshness", "DeliveryToS3.Records", "DeliveryToS3.Success", "IncomingBytes", "IncomingRecords", "DescribeDeliveryStream.Latency", "DescribeDeliveryStream.Requests", "ListDeliveryStreams.Latency", "ListDeliveryStreams.Requests", "PutRecord.Bytes", "PutRecord.Latency", "PutRecord.Requests", "PutRecordBatch.Bytes", "PutRecordBatch.Latency", "PutRecordBatch.Records", "PutRecordBatch.Requests", "UpdateDeliveryStream.Latency", "UpdateDeliveryStream.Requests"},
"AWS/IoT": {"PublishIn.Success", "PublishOut.Success", "Subscribe.Success", "Ping.Success", "Connect.Success", "GetThingShadow.Accepted"},
"AWS/Kinesis": {"GetRecords.Bytes", "GetRecords.IteratorAge", "GetRecords.IteratorAgeMilliseconds", "GetRecords.Latency", "GetRecords.Records", "GetRecords.Success", "IncomingBytes", "IncomingRecords", "PutRecord.Bytes", "PutRecord.Latency", "PutRecord.Success", "PutRecords.Bytes", "PutRecords.Latency", "PutRecords.Records", "PutRecords.Success", "ReadProvisionedThroughputExceeded", "WriteProvisionedThroughputExceeded", "IteratorAgeMilliseconds", "OutgoingBytes", "OutgoingRecords"},
"AWS/KinesisAnalytics": {"Bytes", "MillisBehindLatest", "Records", "Success"},
"AWS/Lambda": {"Invocations", "Errors", "Duration", "Throttles"},
"AWS/Logs": {"IncomingBytes", "IncomingLogEvents", "ForwardedBytes", "ForwardedLogEvents", "DeliveryErrors", "DeliveryThrottling"},
"AWS/ML": {"PredictCount", "PredictFailureCount"},
"AWS/OpsWorks": {"cpu_idle", "cpu_nice", "cpu_system", "cpu_user", "cpu_waitio", "load_1", "load_5", "load_15", "memory_buffers", "memory_cached", "memory_free", "memory_swap", "memory_total", "memory_used", "procs"},
"AWS/Redshift": {"CPUUtilization", "DatabaseConnections", "HealthStatus", "MaintenanceMode", "NetworkReceiveThroughput", "NetworkTransmitThroughput", "PercentageDiskSpaceUsed", "ReadIOPS", "ReadLatency", "ReadThroughput", "WriteIOPS", "WriteLatency", "WriteThroughput"},
"AWS/RDS": {"ActiveTransactions", "AuroraBinlogReplicaLag", "AuroraReplicaLag", "AuroraReplicaLagMaximum", "AuroraReplicaLagMinimum", "BinLogDiskUsage", "BlockedTransactions", "BufferCacheHitRatio", "CommitLatency", "CommitThroughput", "CPUCreditBalance", "CPUCreditUsage", "CPUUtilization", "DatabaseConnections", "DDLLatency", "DDLThroughput", "Deadlocks", "DiskQueueDepth", "DMLLatency", "DMLThroughput", "FailedSqlStatements", "FreeableMemory", "FreeStorageSpace", "LoginFailures", "NetworkReceiveThroughput", "NetworkTransmitThroughput", "ReadIOPS", "ReadLatency", "ReadThroughput", "ReplicaLag", "ResultSetCacheHitRatio", "SelectLatency", "SelectThroughput", "SwapUsage", "TotalConnections", "VolumeReadIOPS", "VolumeWriteIOPS", "WriteIOPS", "WriteLatency", "WriteThroughput"},
"AWS/Route53": {"HealthCheckStatus", "HealthCheckPercentageHealthy", "ConnectionTime", "SSLHandshakeTime", "TimeToFirstByte"},
"AWS/S3": {"BucketSizeBytes", "NumberOfObjects"},
"AWS/SNS": {"NumberOfMessagesPublished", "PublishSize", "NumberOfNotificationsDelivered", "NumberOfNotificationsFailed"},
"AWS/SQS": {"NumberOfMessagesSent", "SentMessageSize", "NumberOfMessagesReceived", "NumberOfEmptyReceives", "NumberOfMessagesDeleted", "ApproximateNumberOfMessagesDelayed", "ApproximateNumberOfMessagesVisible", "ApproximateNumberOfMessagesNotVisible"},
"AWS/StorageGateway": {"CacheHitPercent", "CachePercentUsed", "CachePercentDirty", "CloudBytesDownloaded", "CloudDownloadLatency", "CloudBytesUploaded", "UploadBufferFree", "UploadBufferPercentUsed", "UploadBufferUsed", "QueuedWrites", "ReadBytes", "ReadTime", "TotalCacheSize", "WriteBytes", "WriteTime", "TimeSinceLastRecoveryPoint", "WorkingStorageFree", "WorkingStoragePercentUsed", "WorkingStorageUsed",
"CacheHitPercent", "CachePercentUsed", "CachePercentDirty", "ReadBytes", "ReadTime", "WriteBytes", "WriteTime", "QueuedWrites"},
"AWS/SWF": {"DecisionTaskScheduleToStartTime", "DecisionTaskStartToCloseTime", "DecisionTasksCompleted", "StartedDecisionTasksTimedOutOnClose", "WorkflowStartToCloseTime", "WorkflowsCanceled", "WorkflowsCompleted", "WorkflowsContinuedAsNew", "WorkflowsFailed", "WorkflowsTerminated", "WorkflowsTimedOut",
"ActivityTaskScheduleToCloseTime", "ActivityTaskScheduleToStartTime", "ActivityTaskStartToCloseTime", "ActivityTasksCanceled", "ActivityTasksCompleted", "ActivityTasksFailed", "ScheduledActivityTasksTimedOutOnClose", "ScheduledActivityTasksTimedOutOnStart", "StartedActivityTasksTimedOutOnClose", "StartedActivityTasksTimedOutOnHeartbeat"},
"AWS/WAF": {"AllowedRequests", "BlockedRequests", "CountedRequests"},
"AWS/WorkSpaces": {"Available", "Unhealthy", "ConnectionAttempt", "ConnectionSuccess", "ConnectionFailure", "SessionLaunchTime", "InSessionLatency", "SessionDisconnect"},
"KMS": {"SecondsUntilKeyMaterialExpiration"},
}
dimensionsMap = map[string][]string{
"AWS/ApiGateway": {"ApiName", "Method", "Resource", "Stage"},
"AWS/ApplicationELB": {"LoadBalancer", "TargetGroup", "AvailabilityZone"},
"AWS/AutoScaling": {"AutoScalingGroupName"},
"AWS/Billing": {"ServiceName", "LinkedAccount", "Currency"},
"AWS/CloudFront": {"DistributionId", "Region"},
"AWS/CloudSearch": {},
"AWS/DynamoDB": {"TableName", "GlobalSecondaryIndexName", "Operation", "StreamLabel"},
"AWS/EBS": {"VolumeId"},
"AWS/EC2": {"AutoScalingGroupName", "ImageId", "InstanceId", "InstanceType"},
"AWS/EC2Spot": {"AvailabilityZone", "FleetRequestId", "InstanceType"},
"AWS/ECS": {"ClusterName", "ServiceName"},
"AWS/EFS": {"FileSystemId"},
"AWS/ELB": {"LoadBalancerName", "AvailabilityZone"},
"AWS/ElastiCache": {"CacheClusterId", "CacheNodeId"},
"AWS/ElasticBeanstalk": {"EnvironmentName", "InstanceId"},
"AWS/ElasticMapReduce": {"ClusterId", "JobFlowId", "JobId"},
"AWS/ES": {"ClientId", "DomainName"},
"AWS/Events": {"RuleName"},
"AWS/Firehose": {},
"AWS/IoT": {"Protocol"},
"AWS/Kinesis": {"StreamName", "ShardID"},
"AWS/KinesisAnalytics": {"Flow", "Id", "Application"},
"AWS/Lambda": {"FunctionName", "Resource", "Version", "Alias"},
"AWS/Logs": {"LogGroupName", "DestinationType", "FilterName"},
"AWS/ML": {"MLModelId", "RequestMode"},
"AWS/OpsWorks": {"StackId", "LayerId", "InstanceId"},
"AWS/Redshift": {"NodeID", "ClusterIdentifier"},
"AWS/RDS": {"DBInstanceIdentifier", "DBClusterIdentifier", "DatabaseClass", "EngineName"},
"AWS/Route53": {"HealthCheckId"},
"AWS/S3": {"BucketName", "StorageType"},
"AWS/SNS": {"Application", "Platform", "TopicName"},
"AWS/SQS": {"QueueName"},
"AWS/StorageGateway": {"GatewayId", "GatewayName", "VolumeId"},
"AWS/SWF": {"Domain", "WorkflowTypeName", "WorkflowTypeVersion", "ActivityTypeName", "ActivityTypeVersion"},
"AWS/WAF": {"Rule", "WebACL"},
"AWS/WorkSpaces": {"DirectoryId", "WorkspaceId"},
"KMS": {"KeyId"},
}
customMetricsMetricsMap = make(map[string]map[string]map[string]*CustomMetricsCache)
customMetricsDimensionsMap = make(map[string]map[string]map[string]*CustomMetricsCache)
}
// Whenever this list is updated, frontend list should also be updated.
// Please update the region list in public/app/plugins/datasource/cloudwatch/partials/config.html
func handleGetRegions(req *cwRequest, c *middleware.Context) {
regions := []string{
"ap-northeast-1", "ap-northeast-2", "ap-southeast-1", "ap-southeast-2", "ap-south-1", "ca-central-1", "cn-north-1",
"eu-central-1", "eu-west-1", "eu-west-2", "sa-east-1", "us-east-1", "us-east-2", "us-gov-west-1", "us-west-1", "us-west-2",
}
result := []interface{}{}
for _, region := range regions {
result = append(result, util.DynMap{"text": region, "value": region})
}
c.JSON(200, result)
}
func handleGetNamespaces(req *cwRequest, c *middleware.Context) {
keys := []string{}
for key := range metricsMap {
keys = append(keys, key)
}
customNamespaces := req.DataSource.JsonData.Get("customMetricsNamespaces").MustString()
if customNamespaces != "" {
for _, key := range strings.Split(customNamespaces, ",") {
keys = append(keys, key)
}
}
sort.Sort(sort.StringSlice(keys))
result := []interface{}{}
for _, key := range keys {
result = append(result, util.DynMap{"text": key, "value": key})
}
c.JSON(200, result)
}
func handleGetMetrics(req *cwRequest, c *middleware.Context) {
reqParam := &struct {
Parameters struct {
Namespace string `json:"namespace"`
} `json:"parameters"`
}{}
json.Unmarshal(req.Body, reqParam)
var namespaceMetrics []string
if !isCustomMetrics(reqParam.Parameters.Namespace) {
var exists bool
if namespaceMetrics, exists = metricsMap[reqParam.Parameters.Namespace]; !exists {
c.JsonApiErr(404, "Unable to find namespace "+reqParam.Parameters.Namespace, nil)
return
}
} else {
var err error
cwData := req.GetDatasourceInfo()
cwData.Namespace = reqParam.Parameters.Namespace
if namespaceMetrics, err = getMetricsForCustomMetrics(cwData, getAllMetrics); err != nil {
c.JsonApiErr(500, "Unable to call AWS API", err)
return
}
}
sort.Sort(sort.StringSlice(namespaceMetrics))
result := []interface{}{}
for _, name := range namespaceMetrics {
result = append(result, util.DynMap{"text": name, "value": name})
}
c.JSON(200, result)
}
func handleGetDimensions(req *cwRequest, c *middleware.Context) {
reqParam := &struct {
Parameters struct {
Namespace string `json:"namespace"`
} `json:"parameters"`
}{}
json.Unmarshal(req.Body, reqParam)
var dimensionValues []string
if !isCustomMetrics(reqParam.Parameters.Namespace) {
var exists bool
if dimensionValues, exists = dimensionsMap[reqParam.Parameters.Namespace]; !exists {
c.JsonApiErr(404, "Unable to find dimension "+reqParam.Parameters.Namespace, nil)
return
}
} else {
var err error
dsInfo := req.GetDatasourceInfo()
dsInfo.Namespace = reqParam.Parameters.Namespace
if dimensionValues, err = getDimensionsForCustomMetrics(dsInfo, getAllMetrics); err != nil {
c.JsonApiErr(500, "Unable to call AWS API", err)
return
}
}
sort.Sort(sort.StringSlice(dimensionValues))
result := []interface{}{}
for _, name := range dimensionValues {
result = append(result, util.DynMap{"text": name, "value": name})
}
c.JSON(200, result)
}
func getAllMetrics(cwData *datasourceInfo) (cloudwatch.ListMetricsOutput, error) {
creds, err := getCredentials(cwData)
if err != nil {
return cloudwatch.ListMetricsOutput{}, err
}
cfg := &aws.Config{
Region: aws.String(cwData.Region),
Credentials: creds,
}
svc := cloudwatch.New(session.New(cfg), cfg)
params := &cloudwatch.ListMetricsInput{
Namespace: aws.String(cwData.Namespace),
}
var resp cloudwatch.ListMetricsOutput
err = svc.ListMetricsPages(params,
func(page *cloudwatch.ListMetricsOutput, lastPage bool) bool {
metrics.M_Aws_CloudWatch_ListMetrics.Inc(1)
metrics, _ := awsutil.ValuesAtPath(page, "Metrics")
for _, metric := range metrics {
resp.Metrics = append(resp.Metrics, metric.(*cloudwatch.Metric))
}
return !lastPage
})
if err != nil {
return resp, err
}
return resp, nil
}
var metricsCacheLock sync.Mutex
func getMetricsForCustomMetrics(dsInfo *datasourceInfo, getAllMetrics func(*datasourceInfo) (cloudwatch.ListMetricsOutput, error)) ([]string, error) {
result, err := getAllMetrics(dsInfo)
if err != nil {
return []string{}, err
}
metricsCacheLock.Lock()
defer metricsCacheLock.Unlock()
if _, ok := customMetricsMetricsMap[dsInfo.Profile]; !ok {
customMetricsMetricsMap[dsInfo.Profile] = make(map[string]map[string]*CustomMetricsCache)
}
if _, ok := customMetricsMetricsMap[dsInfo.Profile][dsInfo.Region]; !ok {
customMetricsMetricsMap[dsInfo.Profile][dsInfo.Region] = make(map[string]*CustomMetricsCache)
}
if _, ok := customMetricsMetricsMap[dsInfo.Profile][dsInfo.Region][dsInfo.Namespace]; !ok {
customMetricsMetricsMap[dsInfo.Profile][dsInfo.Region][dsInfo.Namespace] = &CustomMetricsCache{}
customMetricsMetricsMap[dsInfo.Profile][dsInfo.Region][dsInfo.Namespace].Cache = make([]string, 0)
}
if customMetricsMetricsMap[dsInfo.Profile][dsInfo.Region][dsInfo.Namespace].Expire.After(time.Now()) {
return customMetricsMetricsMap[dsInfo.Profile][dsInfo.Region][dsInfo.Namespace].Cache, nil
}
customMetricsMetricsMap[dsInfo.Profile][dsInfo.Region][dsInfo.Namespace].Cache = make([]string, 0)
customMetricsMetricsMap[dsInfo.Profile][dsInfo.Region][dsInfo.Namespace].Expire = time.Now().Add(5 * time.Minute)
for _, metric := range result.Metrics {
if isDuplicate(customMetricsMetricsMap[dsInfo.Profile][dsInfo.Region][dsInfo.Namespace].Cache, *metric.MetricName) {
continue
}
customMetricsMetricsMap[dsInfo.Profile][dsInfo.Region][dsInfo.Namespace].Cache = append(customMetricsMetricsMap[dsInfo.Profile][dsInfo.Region][dsInfo.Namespace].Cache, *metric.MetricName)
}
return customMetricsMetricsMap[dsInfo.Profile][dsInfo.Region][dsInfo.Namespace].Cache, nil
}
var dimensionsCacheLock sync.Mutex
func getDimensionsForCustomMetrics(dsInfo *datasourceInfo, getAllMetrics func(*datasourceInfo) (cloudwatch.ListMetricsOutput, error)) ([]string, error) {
result, err := getAllMetrics(dsInfo)
if err != nil {
return []string{}, err
}
dimensionsCacheLock.Lock()
defer dimensionsCacheLock.Unlock()
if _, ok := customMetricsDimensionsMap[dsInfo.Profile]; !ok {
customMetricsDimensionsMap[dsInfo.Profile] = make(map[string]map[string]*CustomMetricsCache)
}
if _, ok := customMetricsDimensionsMap[dsInfo.Profile][dsInfo.Region]; !ok {
customMetricsDimensionsMap[dsInfo.Profile][dsInfo.Region] = make(map[string]*CustomMetricsCache)
}
if _, ok := customMetricsDimensionsMap[dsInfo.Profile][dsInfo.Region][dsInfo.Namespace]; !ok {
customMetricsDimensionsMap[dsInfo.Profile][dsInfo.Region][dsInfo.Namespace] = &CustomMetricsCache{}
customMetricsDimensionsMap[dsInfo.Profile][dsInfo.Region][dsInfo.Namespace].Cache = make([]string, 0)
}
if customMetricsDimensionsMap[dsInfo.Profile][dsInfo.Region][dsInfo.Namespace].Expire.After(time.Now()) {
return customMetricsDimensionsMap[dsInfo.Profile][dsInfo.Region][dsInfo.Namespace].Cache, nil
}
customMetricsDimensionsMap[dsInfo.Profile][dsInfo.Region][dsInfo.Namespace].Cache = make([]string, 0)
customMetricsDimensionsMap[dsInfo.Profile][dsInfo.Region][dsInfo.Namespace].Expire = time.Now().Add(5 * time.Minute)
for _, metric := range result.Metrics {
for _, dimension := range metric.Dimensions {
if isDuplicate(customMetricsDimensionsMap[dsInfo.Profile][dsInfo.Region][dsInfo.Namespace].Cache, *dimension.Name) {
continue
}
customMetricsDimensionsMap[dsInfo.Profile][dsInfo.Region][dsInfo.Namespace].Cache = append(customMetricsDimensionsMap[dsInfo.Profile][dsInfo.Region][dsInfo.Namespace].Cache, *dimension.Name)
}
}
return customMetricsDimensionsMap[dsInfo.Profile][dsInfo.Region][dsInfo.Namespace].Cache, nil
}
func isDuplicate(nameList []string, target string) bool {
for _, name := range nameList {
if name == target {
return true
}
}
return false
}
func isCustomMetrics(namespace string) bool {
return strings.Index(namespace, "AWS/") != 0
}