github.com/GoogleCloudPlatform/terraformer@v0.8.18/providers/datadog/metric_metadata.go (about)

     1  // Copyright 2018 The Terraformer Authors.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package datadog
    16  
    17  import (
    18  	"fmt"
    19  	"log"
    20  
    21  	"github.com/GoogleCloudPlatform/terraformer/terraformutils"
    22  )
    23  
    24  var (
    25  	// MetricMetadataAllowEmptyValues ...
    26  	MetricMetadataAllowEmptyValues = []string{}
    27  )
    28  
    29  // MetricMetadataGenerator ...
    30  type MetricMetadataGenerator struct {
    31  	DatadogService
    32  }
    33  
    34  func (g *MetricMetadataGenerator) createResource(metricName string) terraformutils.Resource {
    35  	return terraformutils.NewResource(
    36  		metricName,
    37  		fmt.Sprintf("metric_metadata_%s", metricName),
    38  		"datadog_metric_metadata",
    39  		"datadog",
    40  		map[string]string{
    41  			"metric": metricName,
    42  		},
    43  		MetricMetadataAllowEmptyValues,
    44  		map[string]interface{}{},
    45  	)
    46  }
    47  
    48  // InitResources Generate TerraformResources from Datadog API,
    49  // from each metric create 1 TerraformResource.
    50  // Need Metric Name as ID for terraform resource
    51  func (g *MetricMetadataGenerator) InitResources() error {
    52  	resources := []terraformutils.Resource{}
    53  	for _, filter := range g.Filter {
    54  		if filter.FieldPath == "id" && filter.IsApplicable("metric_metadata") {
    55  			for _, value := range filter.AcceptableValues {
    56  				resources = append(resources, g.createResource(value))
    57  			}
    58  		}
    59  	}
    60  
    61  	// Collecting all metrics_metadata can be an expensive task.
    62  	// Hence, only allow collections of metrics passed via filter
    63  	if len(resources) == 0 {
    64  		log.Print("Filter(metric names as IDs) is required for importing datadog_metric_metadata resource")
    65  		return nil
    66  	}
    67  	g.Resources = resources
    68  	return nil
    69  }