sigs.k8s.io/cluster-api-provider-aws@v1.5.5/docs/book/cmd/amilist/main.go (about)

     1  /*
     2  Copyright 2021 The Kubernetes Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8  	http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package main
    18  
    19  import (
    20  	"bytes"
    21  	"encoding/json"
    22  
    23  	"github.com/aws/aws-lambda-go/lambda"
    24  	"github.com/aws/aws-sdk-go/aws"
    25  	"github.com/aws/aws-sdk-go/aws/session"
    26  	"github.com/aws/aws-sdk-go/service/s3/s3manager"
    27  	"sigs.k8s.io/controller-runtime/pkg/log"
    28  
    29  	"sigs.k8s.io/cluster-api-provider-aws/cmd/clusterawsadm/ami"
    30  )
    31  
    32  var svc *s3manager.Uploader
    33  
    34  const (
    35  	bucket = "cluster-api-aws-amis.sigs.k8s.io"
    36  )
    37  
    38  func init() {
    39  	var err error
    40  	var sess *session.Session
    41  	sess, err = session.NewSession()
    42  	if err != nil {
    43  		panic(err)
    44  	}
    45  	svc = s3manager.NewUploader(sess)
    46  }
    47  
    48  func main() {
    49  	lambda.Start(LambdaHandler)
    50  }
    51  
    52  // LambdaHandler defines a Lambda function handler.
    53  func LambdaHandler() error {
    54  	amis, err := ami.List(
    55  		ami.ListInput{},
    56  	)
    57  
    58  	if err != nil {
    59  		log.Log.Error(err, "error fetching AMIs")
    60  		return err
    61  	}
    62  
    63  	data, err := json.MarshalIndent(amis, "", "  ")
    64  	if err != nil {
    65  		log.Log.Error(err, "error marshalling marshalling")
    66  		return err
    67  	}
    68  
    69  	_, err = svc.Upload(&s3manager.UploadInput{
    70  		Body:   bytes.NewReader(data),
    71  		Bucket: aws.String(bucket),
    72  		Key:    aws.String("amis.json"),
    73  		ACL:    aws.String("public-read"),
    74  	})
    75  	if err != nil {
    76  		log.Log.Error(err, "error uploading data")
    77  	}
    78  
    79  	return err
    80  }