sigs.k8s.io/cluster-api-provider-aws@v1.5.5/pkg/cloud/services/ssm/cloudinit.go (about)

     1  /*
     2  Copyright 2020 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 ssm
    18  
    19  import (
    20  	"sigs.k8s.io/cluster-api-provider-aws/pkg/cloud/scope"
    21  	"sigs.k8s.io/cluster-api-provider-aws/pkg/internal/mime"
    22  )
    23  
    24  const (
    25  	serviceID = "ssm"
    26  )
    27  
    28  // UserData creates a multi-part MIME document including a script boothook to
    29  // download userdata from AWS Systems Manager and then restart cloud-init, and an include part
    30  // specifying the on disk location of the new userdata.
    31  func (s *Service) UserData(secretPrefix string, chunks int32, region string, endpoints []scope.ServiceEndpoint) ([]byte, error) {
    32  	var serviceEndpoint = ""
    33  	for _, v := range endpoints {
    34  		if v.ServiceID == serviceID {
    35  			serviceEndpoint = v.URL
    36  		}
    37  	}
    38  	var userData, err = mime.GenerateInitDocument(secretPrefix, chunks, region, serviceEndpoint, secretFetchScript)
    39  	if err != nil {
    40  		return []byte{}, err
    41  	}
    42  	return userData, nil
    43  }