github.com/GoogleCloudPlatform/terraformer@v0.8.18/providers/aws/eni.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 aws
    16  
    17  import (
    18  	"context"
    19  
    20  	"github.com/GoogleCloudPlatform/terraformer/terraformutils"
    21  
    22  	"github.com/aws/aws-sdk-go-v2/service/ec2"
    23  )
    24  
    25  var EniAllowEmptyValues = []string{"tags."}
    26  
    27  type EniGenerator struct {
    28  	AWSService
    29  }
    30  
    31  func (EniGenerator) createResources(enis *ec2.DescribeNetworkInterfacesOutput) []terraformutils.Resource {
    32  	var resources []terraformutils.Resource
    33  	for _, eni := range enis.NetworkInterfaces {
    34  		resources = append(resources, terraformutils.NewSimpleResource(
    35  			StringValue(eni.NetworkInterfaceId),
    36  			StringValue(eni.NetworkInterfaceId),
    37  			"aws_network_interface",
    38  			"aws",
    39  			EniAllowEmptyValues,
    40  		))
    41  	}
    42  	return resources
    43  }
    44  
    45  // Generate TerraformResources from AWS API,
    46  // from each ENI creates 1 TerraformResource.
    47  func (g *EniGenerator) InitResources() error {
    48  	config, e := g.generateConfig()
    49  	if e != nil {
    50  		return e
    51  	}
    52  	svc := ec2.NewFromConfig(config)
    53  	p := ec2.NewDescribeNetworkInterfacesPaginator(svc, &ec2.DescribeNetworkInterfacesInput{})
    54  	for p.HasMorePages() {
    55  		page, e := p.NextPage(context.TODO())
    56  		if e != nil {
    57  			return e
    58  		}
    59  		g.Resources = append(g.Resources, g.createResources(page)...)
    60  	}
    61  	return nil
    62  }
    63  
    64  func (g *EniGenerator) PostConvertHook() error {
    65  	for _, r := range g.Resources {
    66  		if r.InstanceInfo.Type != "aws_network_interface" {
    67  			continue
    68  		}
    69  		if _, hasAttachment := r.Item["attachment"]; hasAttachment {
    70  			if attInstance, hasAttachment := r.InstanceState.Attributes["attachment.0.instance"]; !hasAttachment || attInstance == "" {
    71  				delete(r.Item, "attachment")
    72  			}
    73  		}
    74  	}
    75  	return nil
    76  }