700 lines
18 KiB
Go
700 lines
18 KiB
Go
package cloudwatch
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import (
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"context"
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"net/http"
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"net/url"
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"testing"
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"time"
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"github.com/aws/aws-sdk-go-v2/aws"
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"github.com/aws/aws-sdk-go-v2/service/cloudwatch"
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"github.com/aws/aws-sdk-go-v2/service/cloudwatch/types"
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"github.com/google/go-cmp/cmp"
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"github.com/stretchr/testify/require"
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"github.com/influxdata/telegraf"
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"github.com/influxdata/telegraf/config"
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"github.com/influxdata/telegraf/filter"
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"github.com/influxdata/telegraf/metric"
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common_aws "github.com/influxdata/telegraf/plugins/common/aws"
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"github.com/influxdata/telegraf/plugins/common/proxy"
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"github.com/influxdata/telegraf/testutil"
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)
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func TestSnakeCase(t *testing.T) {
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require.Equal(t, "cluster_name", snakeCase("Cluster Name"))
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require.Equal(t, "broker_id", snakeCase("Broker ID"))
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}
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func TestGather(t *testing.T) {
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plugin := &CloudWatch{
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CredentialConfig: common_aws.CredentialConfig{
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Region: "us-east-1",
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},
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Namespace: "AWS/ELB",
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Delay: config.Duration(1 * time.Minute),
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Period: config.Duration(1 * time.Minute),
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RateLimit: 200,
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BatchSize: 500,
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Log: testutil.Logger{},
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}
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require.NoError(t, plugin.Init())
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plugin.client = defaultMockClient("AWS/ELB")
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var acc testutil.Accumulator
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require.NoError(t, acc.GatherError(plugin.Gather))
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expected := []telegraf.Metric{
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metric.New(
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"cloudwatch_aws_elb",
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map[string]string{
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"region": "us-east-1",
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"load_balancer_name": "p-example1",
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},
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map[string]interface{}{
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"latency_minimum": 0.1,
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"latency_maximum": 0.3,
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"latency_average": 0.2,
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"latency_sum": 123.0,
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"latency_sample_count": 100.0,
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},
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time.Unix(0, 0),
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),
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metric.New(
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"cloudwatch_aws_elb",
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map[string]string{
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"region": "us-east-1",
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"load_balancer_name": "p-example2",
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},
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map[string]interface{}{
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"latency_minimum": 0.1,
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"latency_maximum": 0.3,
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"latency_average": 0.2,
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"latency_sum": 124.0,
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"latency_sample_count": 100.0,
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},
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time.Unix(0, 0),
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),
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}
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testutil.RequireMetricsEqual(t, expected, acc.GetTelegrafMetrics(), testutil.IgnoreTime())
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}
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func TestGatherDenseMetric(t *testing.T) {
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plugin := &CloudWatch{
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CredentialConfig: common_aws.CredentialConfig{
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Region: "us-east-1",
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},
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Namespace: "AWS/ELB",
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Delay: config.Duration(1 * time.Minute),
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Period: config.Duration(1 * time.Minute),
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RateLimit: 200,
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BatchSize: 500,
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MetricFormat: "dense",
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Log: testutil.Logger{},
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}
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require.NoError(t, plugin.Init())
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plugin.client = defaultMockClient("AWS/ELB")
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var acc testutil.Accumulator
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require.NoError(t, acc.GatherError(plugin.Gather))
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expected := []telegraf.Metric{
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metric.New(
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"cloudwatch_aws_elb",
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map[string]string{
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"region": "us-east-1",
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"load_balancer_name": "p-example1",
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"metric_name": "latency",
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},
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map[string]interface{}{
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"minimum": 0.1,
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"maximum": 0.3,
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"average": 0.2,
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"sum": 123.0,
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"sample_count": 100.0,
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},
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time.Unix(0, 0),
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),
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metric.New(
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"cloudwatch_aws_elb",
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map[string]string{
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"region": "us-east-1",
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"load_balancer_name": "p-example2",
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"metric_name": "latency",
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},
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map[string]interface{}{
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"minimum": 0.1,
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"maximum": 0.3,
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"average": 0.2,
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"sum": 124.0,
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"sample_count": 100.0,
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},
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time.Unix(0, 0),
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),
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}
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testutil.RequireMetricsEqual(t, expected, acc.GetTelegrafMetrics(), testutil.IgnoreTime())
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}
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func TestMultiAccountGather(t *testing.T) {
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plugin := &CloudWatch{
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CredentialConfig: common_aws.CredentialConfig{
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Region: "us-east-1",
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},
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Namespace: "AWS/ELB",
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Delay: config.Duration(1 * time.Minute),
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Period: config.Duration(1 * time.Minute),
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RateLimit: 200,
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BatchSize: 500,
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Log: testutil.Logger{},
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IncludeLinkedAccounts: true,
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}
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require.NoError(t, plugin.Init())
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plugin.client = defaultMockClient("AWS/ELB")
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var acc testutil.Accumulator
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require.NoError(t, acc.GatherError(plugin.Gather))
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expected := []telegraf.Metric{
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metric.New(
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"cloudwatch_aws_elb",
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map[string]string{
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"region": "us-east-1",
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"load_balancer_name": "p-example1",
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"account": "123456789012",
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},
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map[string]interface{}{
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"latency_minimum": 0.1,
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"latency_maximum": 0.3,
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"latency_average": 0.2,
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"latency_sum": 123.0,
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"latency_sample_count": 100.0,
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},
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time.Unix(0, 0),
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),
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metric.New(
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"cloudwatch_aws_elb",
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map[string]string{
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"region": "us-east-1",
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"load_balancer_name": "p-example2",
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"account": "923456789017",
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},
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map[string]interface{}{
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"latency_minimum": 0.1,
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"latency_maximum": 0.3,
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"latency_average": 0.2,
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"latency_sum": 124.0,
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"latency_sample_count": 100.0,
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},
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time.Unix(0, 0),
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),
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}
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testutil.RequireMetricsEqual(t, expected, acc.GetTelegrafMetrics(), testutil.IgnoreTime())
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}
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func TestGatherMultipleNamespaces(t *testing.T) {
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plugin := &CloudWatch{
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CredentialConfig: common_aws.CredentialConfig{
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Region: "us-east-1",
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},
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Namespaces: []string{"AWS/ELB", "AWS/EC2"},
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Delay: config.Duration(1 * time.Minute),
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Period: config.Duration(1 * time.Minute),
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RateLimit: 200,
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BatchSize: 500,
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Log: testutil.Logger{},
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}
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require.NoError(t, plugin.Init())
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plugin.client = defaultMockClient("AWS/ELB", "AWS/EC2")
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var acc testutil.Accumulator
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require.NoError(t, acc.GatherError(plugin.Gather))
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expected := []telegraf.Metric{
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metric.New(
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"cloudwatch_aws_elb",
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map[string]string{
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"region": "us-east-1",
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"load_balancer_name": "p-example1",
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},
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map[string]interface{}{
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"latency_minimum": 0.1,
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"latency_maximum": 0.3,
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"latency_average": 0.2,
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"latency_sum": 123.0,
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"latency_sample_count": 100.0,
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},
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time.Unix(0, 0),
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),
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metric.New(
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"cloudwatch_aws_elb",
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map[string]string{
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"region": "us-east-1",
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"load_balancer_name": "p-example2",
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},
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map[string]interface{}{
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"latency_minimum": 0.1,
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"latency_maximum": 0.3,
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"latency_average": 0.2,
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"latency_sum": 124.0,
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"latency_sample_count": 100.0,
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},
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time.Unix(0, 0),
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),
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metric.New(
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"cloudwatch_aws_ec2",
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map[string]string{
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"region": "us-east-1",
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"load_balancer_name": "p-example1",
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},
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map[string]interface{}{
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"latency_minimum": 0.1,
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"latency_maximum": 0.3,
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"latency_average": 0.2,
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"latency_sum": 123.0,
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"latency_sample_count": 100.0,
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},
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time.Unix(0, 0),
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),
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metric.New(
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"cloudwatch_aws_ec2",
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map[string]string{
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"region": "us-east-1",
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"load_balancer_name": "p-example2",
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},
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map[string]interface{}{
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"latency_minimum": 0.1,
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"latency_maximum": 0.3,
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"latency_average": 0.2,
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"latency_sum": 124.0,
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"latency_sample_count": 100.0,
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},
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time.Unix(0, 0),
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),
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}
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option := []cmp.Option{
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testutil.IgnoreTime(),
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testutil.SortMetrics(),
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}
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testutil.RequireMetricsEqual(t, expected, acc.GetTelegrafMetrics(), option...)
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}
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func TestSelectMetrics(t *testing.T) {
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plugin := &CloudWatch{
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CredentialConfig: common_aws.CredentialConfig{
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Region: "us-east-1",
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},
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Namespace: "AWS/ELB",
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Delay: config.Duration(1 * time.Minute),
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Period: config.Duration(1 * time.Minute),
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RateLimit: 200,
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BatchSize: 500,
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Metrics: []*cloudwatchMetric{
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{
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MetricNames: []string{"Latency", "RequestCount"},
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Dimensions: []*dimension{
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{
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Name: "LoadBalancerName",
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Value: "lb*",
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},
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{
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Name: "AvailabilityZone",
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Value: "us-east*",
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},
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},
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},
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},
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Log: testutil.Logger{},
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}
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require.NoError(t, plugin.Init())
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plugin.client = selectedMockClient()
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filtered, err := plugin.getFilteredMetrics()
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require.NoError(t, err)
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// We've asked for 2 (out of 4) metrics, over all 3 load balancers in all 2
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// AZs. We should get 12 metrics.
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require.Len(t, filtered[0].metrics, 12)
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}
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func TestSelectMetricsSummaryOnly(t *testing.T) {
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plugin := &CloudWatch{
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CredentialConfig: common_aws.CredentialConfig{
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Region: "us-east-1",
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},
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Namespace: "AWS/ELB",
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Delay: config.Duration(1 * time.Minute),
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Period: config.Duration(1 * time.Minute),
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RateLimit: 200,
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BatchSize: 500,
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Metrics: []*cloudwatchMetric{
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{
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MetricNames: []string{"Latency", "RequestCount"},
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Dimensions: []*dimension{
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{
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Name: "LoadBalancerName",
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Value: "lb*",
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},
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},
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},
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},
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Log: testutil.Logger{},
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}
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require.NoError(t, plugin.Init())
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plugin.client = selectedMockClient()
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filtered, err := plugin.getFilteredMetrics()
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require.NoError(t, err)
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// We've asked for the non-AU specific metrics only so this should be
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// 2 (out of 4) metrics for all 3 load balancers but no AZ.
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require.Len(t, filtered[0].metrics, 6)
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}
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func TestGenerateStatisticsInputParams(t *testing.T) {
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d := types.Dimension{
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Name: aws.String("LoadBalancerName"),
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Value: aws.String("p-example"),
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}
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namespace := "AWS/ELB"
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m := types.Metric{
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MetricName: aws.String("Latency"),
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Dimensions: []types.Dimension{d},
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Namespace: aws.String(namespace),
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}
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plugin := &CloudWatch{
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Namespaces: []string{namespace},
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Delay: config.Duration(1 * time.Minute),
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Period: config.Duration(1 * time.Minute),
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BatchSize: 500,
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Log: testutil.Logger{},
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}
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require.NoError(t, plugin.Init())
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now := time.Now()
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plugin.updateWindow(now)
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statFilter, err := filter.NewIncludeExcludeFilter(nil, nil)
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require.NoError(t, err)
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queries := plugin.getDataQueries([]filteredMetric{{metrics: []types.Metric{m}, statFilter: statFilter}})
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params := &cloudwatch.GetMetricDataInput{
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StartTime: aws.Time(plugin.windowStart),
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EndTime: aws.Time(plugin.windowEnd),
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MetricDataQueries: queries[namespace],
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}
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require.EqualValues(t, *params.EndTime, now.Add(-time.Duration(plugin.Delay)))
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require.EqualValues(t, *params.StartTime, now.Add(-time.Duration(plugin.Period)).Add(-time.Duration(plugin.Delay)))
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require.Len(t, params.MetricDataQueries, 5)
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require.Len(t, params.MetricDataQueries[0].MetricStat.Metric.Dimensions, 1)
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require.EqualValues(t, 60, *params.MetricDataQueries[0].MetricStat.Period)
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}
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func TestGenerateStatisticsInputParamsFiltered(t *testing.T) {
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d := types.Dimension{
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Name: aws.String("LoadBalancerName"),
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Value: aws.String("p-example"),
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}
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namespace := "AWS/ELB"
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m := types.Metric{
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MetricName: aws.String("Latency"),
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Dimensions: []types.Dimension{d},
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Namespace: aws.String(namespace),
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}
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plugin := &CloudWatch{
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Namespaces: []string{namespace},
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Delay: config.Duration(1 * time.Minute),
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Period: config.Duration(1 * time.Minute),
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BatchSize: 500,
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Log: testutil.Logger{},
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}
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require.NoError(t, plugin.Init())
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now := time.Now()
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plugin.updateWindow(now)
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statFilter, err := filter.NewIncludeExcludeFilter([]string{"average", "sample_count"}, nil)
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require.NoError(t, err)
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queries := plugin.getDataQueries([]filteredMetric{{metrics: []types.Metric{m}, statFilter: statFilter}})
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params := &cloudwatch.GetMetricDataInput{
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StartTime: aws.Time(plugin.windowStart),
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EndTime: aws.Time(plugin.windowEnd),
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MetricDataQueries: queries[namespace],
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}
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require.EqualValues(t, *params.EndTime, now.Add(-time.Duration(plugin.Delay)))
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require.EqualValues(t, *params.StartTime, now.Add(-time.Duration(plugin.Period)).Add(-time.Duration(plugin.Delay)))
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require.Len(t, params.MetricDataQueries, 2)
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require.Len(t, params.MetricDataQueries[0].MetricStat.Metric.Dimensions, 1)
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require.EqualValues(t, 60, *params.MetricDataQueries[0].MetricStat.Period)
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}
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func TestMetricsCacheTimeout(t *testing.T) {
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cache := &metricCache{
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metrics: make([]filteredMetric, 0),
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built: time.Now(),
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ttl: time.Minute,
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}
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require.True(t, cache.metrics != nil && time.Since(cache.built) < cache.ttl)
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cache.built = time.Now().Add(-time.Minute)
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require.False(t, cache.metrics != nil && time.Since(cache.built) < cache.ttl)
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}
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func TestUpdateWindow(t *testing.T) {
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plugin := &CloudWatch{
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Namespace: "AWS/ELB",
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Delay: config.Duration(1 * time.Minute),
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Period: config.Duration(1 * time.Minute),
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BatchSize: 500,
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Log: testutil.Logger{},
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}
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now := time.Now()
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require.True(t, plugin.windowEnd.IsZero())
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require.True(t, plugin.windowStart.IsZero())
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plugin.updateWindow(now)
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newStartTime := plugin.windowEnd
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// initial window just has a single period
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require.EqualValues(t, plugin.windowEnd, now.Add(-time.Duration(plugin.Delay)))
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require.EqualValues(t, plugin.windowStart, now.Add(-time.Duration(plugin.Delay)).Add(-time.Duration(plugin.Period)))
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now = time.Now()
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plugin.updateWindow(now)
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// subsequent window uses previous end time as start time
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require.EqualValues(t, plugin.windowEnd, now.Add(-time.Duration(plugin.Delay)))
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require.EqualValues(t, plugin.windowStart, newStartTime)
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}
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func TestProxyFunction(t *testing.T) {
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proxyCfg := proxy.HTTPProxy{HTTPProxyURL: "http://www.penguins.com"}
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proxyFunction, err := proxyCfg.Proxy()
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require.NoError(t, err)
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u, err := url.Parse("https://monitoring.us-west-1.amazonaws.com/")
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require.NoError(t, err)
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proxyResult, err := proxyFunction(&http.Request{URL: u})
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require.NoError(t, err)
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require.Equal(t, "www.penguins.com", proxyResult.Host)
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}
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func TestCombineNamespaces(t *testing.T) {
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plugin := &CloudWatch{
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Namespace: "AWS/ELB",
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Namespaces: []string{"AWS/EC2", "AWS/Billing"},
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BatchSize: 500,
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Log: testutil.Logger{},
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}
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require.NoError(t, plugin.Init())
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require.Equal(t, []string{"AWS/EC2", "AWS/Billing", "AWS/ELB"}, plugin.Namespaces)
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}
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|
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// INTERNAL mock client implementation
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type mockClient struct {
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metrics []types.Metric
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}
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func defaultMockClient(namespaces ...string) *mockClient {
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c := &mockClient{
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metrics: make([]types.Metric, 0, len(namespaces)),
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}
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for _, namespace := range namespaces {
|
|
c.metrics = append(c.metrics,
|
|
types.Metric{
|
|
Namespace: aws.String(namespace),
|
|
MetricName: aws.String("Latency"),
|
|
Dimensions: []types.Dimension{
|
|
{
|
|
Name: aws.String("LoadBalancerName"),
|
|
Value: aws.String("p-example1"),
|
|
},
|
|
},
|
|
},
|
|
types.Metric{
|
|
Namespace: aws.String(namespace),
|
|
MetricName: aws.String("Latency"),
|
|
Dimensions: []types.Dimension{
|
|
{
|
|
Name: aws.String("LoadBalancerName"),
|
|
Value: aws.String("p-example2"),
|
|
},
|
|
},
|
|
})
|
|
}
|
|
return c
|
|
}
|
|
|
|
func selectedMockClient() *mockClient {
|
|
c := &mockClient{
|
|
metrics: make([]types.Metric, 0, 4*3*2),
|
|
}
|
|
// 4 metrics for 3 ELBs in 2 AZs
|
|
for _, m := range []string{"Latency", "RequestCount", "HealthyHostCount", "UnHealthyHostCount"} {
|
|
for _, lb := range []string{"lb-1", "lb-2", "lb-3"} {
|
|
// For each metric/ELB pair, we get an aggregate value across all AZs.
|
|
c.metrics = append(c.metrics, types.Metric{
|
|
Namespace: aws.String("AWS/ELB"),
|
|
MetricName: aws.String(m),
|
|
Dimensions: []types.Dimension{
|
|
{
|
|
Name: aws.String("LoadBalancerName"),
|
|
Value: aws.String(lb),
|
|
},
|
|
},
|
|
})
|
|
for _, az := range []string{"us-east-1a", "us-east-1b"} {
|
|
// We get a metric for each metric/ELB/AZ triplet.
|
|
c.metrics = append(c.metrics, types.Metric{
|
|
Namespace: aws.String("AWS/ELB"),
|
|
MetricName: aws.String(m),
|
|
Dimensions: []types.Dimension{
|
|
{
|
|
Name: aws.String("LoadBalancerName"),
|
|
Value: aws.String(lb),
|
|
},
|
|
{
|
|
Name: aws.String("AvailabilityZone"),
|
|
Value: aws.String(az),
|
|
},
|
|
},
|
|
})
|
|
}
|
|
}
|
|
}
|
|
|
|
return c
|
|
}
|
|
|
|
func (c *mockClient) ListMetrics(
|
|
_ context.Context,
|
|
params *cloudwatch.ListMetricsInput,
|
|
_ ...func(*cloudwatch.Options),
|
|
) (*cloudwatch.ListMetricsOutput, error) {
|
|
response := &cloudwatch.ListMetricsOutput{
|
|
Metrics: c.metrics,
|
|
}
|
|
|
|
if params.IncludeLinkedAccounts != nil && *params.IncludeLinkedAccounts {
|
|
response.OwningAccounts = []string{"123456789012", "923456789017"}
|
|
}
|
|
return response, nil
|
|
}
|
|
|
|
func (*mockClient) GetMetricData(
|
|
_ context.Context,
|
|
params *cloudwatch.GetMetricDataInput,
|
|
_ ...func(*cloudwatch.Options),
|
|
) (*cloudwatch.GetMetricDataOutput, error) {
|
|
return &cloudwatch.GetMetricDataOutput{
|
|
MetricDataResults: []types.MetricDataResult{
|
|
{
|
|
Id: aws.String("minimum_0_0"),
|
|
Label: aws.String("latency_minimum"),
|
|
StatusCode: types.StatusCodeComplete,
|
|
Timestamps: []time.Time{
|
|
*params.EndTime,
|
|
},
|
|
Values: []float64{0.1},
|
|
},
|
|
{
|
|
Id: aws.String("maximum_0_0"),
|
|
Label: aws.String("latency_maximum"),
|
|
StatusCode: types.StatusCodeComplete,
|
|
Timestamps: []time.Time{
|
|
*params.EndTime,
|
|
},
|
|
Values: []float64{0.3},
|
|
},
|
|
{
|
|
Id: aws.String("average_0_0"),
|
|
Label: aws.String("latency_average"),
|
|
StatusCode: types.StatusCodeComplete,
|
|
Timestamps: []time.Time{
|
|
*params.EndTime,
|
|
},
|
|
Values: []float64{0.2},
|
|
},
|
|
{
|
|
Id: aws.String("sum_0_0"),
|
|
Label: aws.String("latency_sum"),
|
|
StatusCode: types.StatusCodeComplete,
|
|
Timestamps: []time.Time{
|
|
*params.EndTime,
|
|
},
|
|
Values: []float64{123},
|
|
},
|
|
{
|
|
Id: aws.String("sample_count_0_0"),
|
|
Label: aws.String("latency_sample_count"),
|
|
StatusCode: types.StatusCodeComplete,
|
|
Timestamps: []time.Time{
|
|
*params.EndTime,
|
|
},
|
|
Values: []float64{100},
|
|
},
|
|
{
|
|
Id: aws.String("minimum_1_0"),
|
|
Label: aws.String("latency_minimum"),
|
|
StatusCode: types.StatusCodeComplete,
|
|
Timestamps: []time.Time{
|
|
*params.EndTime,
|
|
},
|
|
Values: []float64{0.1},
|
|
},
|
|
{
|
|
Id: aws.String("maximum_1_0"),
|
|
Label: aws.String("latency_maximum"),
|
|
StatusCode: types.StatusCodeComplete,
|
|
Timestamps: []time.Time{
|
|
*params.EndTime,
|
|
},
|
|
Values: []float64{0.3},
|
|
},
|
|
{
|
|
Id: aws.String("average_1_0"),
|
|
Label: aws.String("latency_average"),
|
|
StatusCode: types.StatusCodeComplete,
|
|
Timestamps: []time.Time{
|
|
*params.EndTime,
|
|
},
|
|
Values: []float64{0.2},
|
|
},
|
|
{
|
|
Id: aws.String("sum_1_0"),
|
|
Label: aws.String("latency_sum"),
|
|
StatusCode: types.StatusCodeComplete,
|
|
Timestamps: []time.Time{
|
|
*params.EndTime,
|
|
},
|
|
Values: []float64{124},
|
|
},
|
|
{
|
|
Id: aws.String("sample_count_1_0"),
|
|
Label: aws.String("latency_sample_count"),
|
|
StatusCode: types.StatusCodeComplete,
|
|
Timestamps: []time.Time{
|
|
*params.EndTime,
|
|
},
|
|
Values: []float64{100},
|
|
},
|
|
},
|
|
}, nil
|
|
}
|