agent/config: change disable_host_metrics to enable_host_metrics and default to false unless configured /w cloud integration

agent/config/builder.go

@@ -941,7 +941,6 @@ func (b *builder) build() (rt RuntimeConfig, err error) {
 			CirconusCheckTags:                  stringVal(c.Telemetry.CirconusCheckTags),
 			CirconusSubmissionInterval:         stringVal(c.Telemetry.CirconusSubmissionInterval),
 			CirconusSubmissionURL:              stringVal(c.Telemetry.CirconusSubmissionURL),
-			DisableHostMetrics:                 boolVal(c.Telemetry.DisableHostMetrics),
 			DisableHostname:                    boolVal(c.Telemetry.DisableHostname),
 			DogstatsdAddr:                      stringVal(c.Telemetry.DogstatsdAddr),
 			DogstatsdTags:                      c.Telemetry.DogstatsdTags,
@@ -1107,6 +1106,9 @@ func (b *builder) build() (rt RuntimeConfig, err error) {
 		LocalProxyConfigResyncInterval:    30 * time.Second,
 	}
 
+	// host metrics are enabled by default if consul is configured with HashiCorp Cloud Platform integration
+	rt.Telemetry.EnableHostMetrics = boolValWithDefault(c.Telemetry.EnableHostMetrics, rt.IsCloudEnabled())
+
 	rt.TLS, err = b.buildTLSConfig(rt, c.TLS)
 	if err != nil {
 		return RuntimeConfig{}, err

agent/config/builder_test.go

@@ -556,3 +556,22 @@ func TestBuilder_parsePrefixFilter(t *testing.T) {
 		}
 	})
 }
+
+func TestBuidler_hostMetricsWithCloud(t *testing.T) {
+	devMode := true
+	builderOpts := LoadOpts{
+		DevMode: &devMode,
+		DefaultConfig: FileSource{
+			Name:   "test",
+			Format: "hcl",
+			Data:   `cloud{ resource_id = "abc" client_id = "abc" client_secret = "abc"}`,
+		},
+	}
+
+	result, err := Load(builderOpts)
+	require.NoError(t, err)
+	require.Empty(t, result.Warnings)
+	cfg := result.RuntimeConfig
+	require.NotNil(t, cfg)
+	require.True(t, cfg.Telemetry.EnableHostMetrics)
+}

agent/config/config.go

@@ -690,8 +690,8 @@ type Telemetry struct {
 	CirconusCheckTags                  *string  `mapstructure:"circonus_check_tags" json:"circonus_check_tags,omitempty"`
 	CirconusSubmissionInterval         *string  `mapstructure:"circonus_submission_interval" json:"circonus_submission_interval,omitempty"`
 	CirconusSubmissionURL              *string  `mapstructure:"circonus_submission_url" json:"circonus_submission_url,omitempty"`
-	DisableHostMetrics                 *bool    `mapstructure:"disable_host_metrics" json:"disable_host_metrics,omitempty"`
 	DisableHostname                    *bool    `mapstructure:"disable_hostname" json:"disable_hostname,omitempty"`
+	EnableHostMetrics                  *bool    `mapstructure:"enable_host_metrics" json:"enable_host_metrics,omitempty"`
 	DogstatsdAddr                      *string  `mapstructure:"dogstatsd_addr" json:"dogstatsd_addr,omitempty"`
 	DogstatsdTags                      []string `mapstructure:"dogstatsd_tags" json:"dogstatsd_tags,omitempty"`
 	RetryFailedConfiguration           *bool    `mapstructure:"retry_failed_connection" json:"retry_failed_connection,omitempty"`

agent/config/runtime_test.go

@@ -6754,7 +6754,7 @@ func TestLoad_FullConfig(t *testing.T) {
 				Expiration: 15 * time.Second,
 				Name:       "ftO6DySn", // notice this is the same as the metrics prefix
 			},
-			DisableHostMetrics: true,
+			EnableHostMetrics: true,
 		},
 		TLS: tlsutil.Config{
 			InternalRPC: tlsutil.ProtocolConfig{

agent/config/testdata/TestRuntimeConfig_Sanitize.golden

@@ -462,10 +462,10 @@
         "CirconusSubmissionInterval": "",
         "CirconusSubmissionURL": "",
         "Disable": false,
-        "DisableHostMetrics": false,
         "DisableHostname": false,
         "DogstatsdAddr": "",
         "DogstatsdTags": [],
+        "EnableHostMetrics": false,
         "FilterDefault": false,
         "MetricsPrefix": "",
         "PrometheusOpts": {
@@ -511,4 +511,4 @@
     "VersionPrerelease": "",
     "Watches": [],
     "XDSUpdateRateLimit": 0
-}
+}

agent/config/testdata/full-config.hcl

@@ -690,7 +690,7 @@ telemetry {
     circonus_check_tags = "prvO4uBl"
     circonus_submission_interval = "DolzaflP"
     circonus_submission_url = "gTcbS93G"
-    disable_host_metrics = true
+    enable_host_metrics = true
     disable_hostname = true
     dogstatsd_addr = "0wSndumK"
     dogstatsd_tags = [ "3N81zSUB","Xtj8AnXZ" ]

agent/config/testdata/full-config.json

@@ -808,7 +808,7 @@
     "circonus_check_tags": "prvO4uBl",
     "circonus_submission_interval": "DolzaflP",
     "circonus_submission_url": "gTcbS93G",
-    "disable_host_metrics": true,
+    "enable_host_metrics": true,
     "disable_hostname": true,
     "dogstatsd_addr": "0wSndumK",
     "dogstatsd_tags": [

agent/setup.go

@@ -120,7 +120,7 @@ func NewBaseDeps(configLoader ConfigLoader, logOut io.Writer, providedLogger hcl
 	if err != nil {
 		return d, fmt.Errorf("failed to initialize telemetry: %w", err)
 	}
-	if !cfg.Telemetry.Disable && !cfg.Telemetry.DisableHostMetrics {
+	if !cfg.Telemetry.Disable && cfg.Telemetry.EnableHostMetrics {
 		ctx, cancel := context.WithCancel(context.Background())
 		hoststats.NewCollector(ctx, d.Logger, cfg.DataDir)
 		d.stopHostCollector = cancel

lib/telemetry.go

@@ -204,17 +204,17 @@ type TelemetryConfig struct {
 	// hcl: telemetry { statsite_address = string }
 	StatsiteAddr string `json:"statsite_address,omitempty" mapstructure:"statsite_address"`
 
+	// EnableHostMetrics will enable metrics collected about the host system such as cpu memory and disk usage.
+	//
+	// hcl: telemetry { enable_host_metrics = (true|false) }
+	EnableHostMetrics bool `json:"enable_host_metrics,omitempty" mapstructure:"enable_host_metrics"`
+
 	// PrometheusOpts provides configuration for the PrometheusSink. Currently the only configuration
 	// we acquire from hcl is the retention time. We also use definition slices that are set in agent setup
 	// before being passed to InitTelemmetry.
 	//
 	// hcl: telemetry { prometheus_retention_time = "duration" }
 	PrometheusOpts prometheus.PrometheusOpts
-
-	// DisableHostMetrics will disable metrics collected about the host system such as cpu memory and disk usage.
-	//
-	// hcl: telemetry { disable_host_metrics = (true|false) }
-	DisableHostMetrics bool
 }
 
 // MetricsHandler provides an http.Handler for displaying metrics.

website/content/docs/agent/config/config-files.mdx

@@ -1817,9 +1817,6 @@ subsystem that provides Consul's service mesh capabilities.
     be used based on **where** this particular instance is running (e.g. a specific
     geo location or datacenter, dc:sfo). By default, this is left blank and not used.
 
-  - `disable_host_metrics` ((#telemetry-disable_host_metrics))
-    This disables reporting of host metrics about system resources, defaults to false.
-
   - `disable_hostname` ((#telemetry-disable_hostname))
     This controls whether or not to prepend runtime telemetry with the machine's
     hostname, defaults to false.
@@ -1834,6 +1831,9 @@ subsystem that provides Consul's service mesh capabilities.
     of global tags that will be added to all telemetry packets sent to DogStatsD.
     It is a list of strings, where each string looks like "my_tag_name:my_tag_value".
 
+  - `enable_host_metrics` ((#telemetry-enable_host_metrics))
+    This enables reporting of host metrics about system resources, defaults to false.
+
   - `filter_default` ((#telemetry-filter_default))
     This controls whether to allow metrics that have not been specified by the filter.
     Defaults to `true`, which will allow all metrics when no filters are provided.