github.com/GoogleCloudPlatform/terraformer@v0.8.18/providers/aws/igw.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 IgwAllowEmptyValues = []string{"tags."}
    26  
    27  type IgwGenerator struct {
    28  	AWSService
    29  }
    30  
    31  // Generate TerraformResources from AWS API,
    32  // from each Internet gateway create 1 TerraformResource.
    33  // Need InternetGatewayId as ID for terraform resource
    34  func (g *IgwGenerator) createResources(igws *ec2.DescribeInternetGatewaysOutput) []terraformutils.Resource {
    35  	var resources []terraformutils.Resource
    36  	for _, internetGateway := range igws.InternetGateways {
    37  		if len(internetGateway.Attachments) == 0 {
    38  			continue
    39  		}
    40  		resources = append(resources, terraformutils.NewSimpleResource(
    41  			StringValue(internetGateway.InternetGatewayId),
    42  			StringValue(internetGateway.InternetGatewayId),
    43  			"aws_internet_gateway",
    44  			"aws",
    45  			IgwAllowEmptyValues,
    46  		))
    47  	}
    48  	return resources
    49  }
    50  
    51  func (g *IgwGenerator) InitResources() error {
    52  	config, e := g.generateConfig()
    53  	if e != nil {
    54  		return e
    55  	}
    56  	svc := ec2.NewFromConfig(config)
    57  	p := ec2.NewDescribeInternetGatewaysPaginator(svc, &ec2.DescribeInternetGatewaysInput{})
    58  	for p.HasMorePages() {
    59  		page, err := p.NextPage(context.TODO())
    60  		if err != nil {
    61  			return err
    62  		}
    63  		g.Resources = append(g.Resources, g.createResources(page)...)
    64  	}
    65  	return nil
    66  }