github.com/ojiry/terraform@v0.8.2-0.20161218223921-e50cec712c4a/builtin/providers/aws/data_source_aws_ebs_snapshot.go (about)

     1  package aws
     2  
     3  import (
     4  	"fmt"
     5  
     6  	"github.com/aws/aws-sdk-go/service/ec2"
     7  	"github.com/hashicorp/terraform/helper/schema"
     8  )
     9  
    10  func dataSourceAwsEbsSnapshot() *schema.Resource {
    11  	return &schema.Resource{
    12  		Read: dataSourceAwsEbsSnapshotRead,
    13  
    14  		Schema: map[string]*schema.Schema{
    15  			//selection criteria
    16  			"filter": dataSourceFiltersSchema(),
    17  
    18  			"owners": {
    19  				Type:     schema.TypeList,
    20  				Optional: true,
    21  				ForceNew: true,
    22  				Elem:     &schema.Schema{Type: schema.TypeString},
    23  			},
    24  			"snapshot_ids": {
    25  				Type:     schema.TypeList,
    26  				Optional: true,
    27  				ForceNew: true,
    28  				Elem:     &schema.Schema{Type: schema.TypeString},
    29  			},
    30  			"restorable_by_user_ids": {
    31  				Type:     schema.TypeList,
    32  				Optional: true,
    33  				ForceNew: true,
    34  				Elem:     &schema.Schema{Type: schema.TypeString},
    35  			},
    36  			//Computed values returned
    37  			"snapshot_id": {
    38  				Type:     schema.TypeString,
    39  				Computed: true,
    40  			},
    41  			"volume_id": {
    42  				Type:     schema.TypeString,
    43  				Computed: true,
    44  			},
    45  			"state": {
    46  				Type:     schema.TypeString,
    47  				Computed: true,
    48  			},
    49  			"owner_id": {
    50  				Type:     schema.TypeString,
    51  				Computed: true,
    52  			},
    53  			"owner_alias": {
    54  				Type:     schema.TypeString,
    55  				Computed: true,
    56  			},
    57  			"encrypted": {
    58  				Type:     schema.TypeBool,
    59  				Computed: true,
    60  			},
    61  			"description": {
    62  				Type:     schema.TypeString,
    63  				Computed: true,
    64  			},
    65  			"volume_size": {
    66  				Type:     schema.TypeInt,
    67  				Computed: true,
    68  			},
    69  			"kms_key_id": {
    70  				Type:     schema.TypeString,
    71  				Computed: true,
    72  			},
    73  			"data_encryption_key_id": {
    74  				Type:     schema.TypeString,
    75  				Computed: true,
    76  			},
    77  			"tags": dataSourceTagsSchema(),
    78  		},
    79  	}
    80  }
    81  
    82  func dataSourceAwsEbsSnapshotRead(d *schema.ResourceData, meta interface{}) error {
    83  	conn := meta.(*AWSClient).ec2conn
    84  
    85  	restorableUsers, restorableUsersOk := d.GetOk("restorable_by_user_ids")
    86  	filters, filtersOk := d.GetOk("filter")
    87  	snapshotIds, snapshotIdsOk := d.GetOk("snapshot_ids")
    88  	owners, ownersOk := d.GetOk("owners")
    89  
    90  	if restorableUsers == false && filtersOk == false && snapshotIds == false && ownersOk == false {
    91  		return fmt.Errorf("One of snapshot_ids, filters, restorable_by_user_ids, or owners must be assigned")
    92  	}
    93  
    94  	params := &ec2.DescribeSnapshotsInput{}
    95  	if restorableUsersOk {
    96  		params.RestorableByUserIds = expandStringList(restorableUsers.([]interface{}))
    97  	}
    98  	if filtersOk {
    99  		params.Filters = buildAwsDataSourceFilters(filters.(*schema.Set))
   100  	}
   101  	if ownersOk {
   102  		params.OwnerIds = expandStringList(owners.([]interface{}))
   103  	}
   104  	if snapshotIdsOk {
   105  		params.SnapshotIds = expandStringList(snapshotIds.([]interface{}))
   106  	}
   107  
   108  	resp, err := conn.DescribeSnapshots(params)
   109  	if err != nil {
   110  		return err
   111  	}
   112  
   113  	if len(resp.Snapshots) < 1 {
   114  		return fmt.Errorf("Your query returned no results. Please change your search criteria and try again.")
   115  	}
   116  
   117  	if len(resp.Snapshots) > 1 {
   118  		return fmt.Errorf("Your query returned more than one result. Please try a more specific search criteria.")
   119  	}
   120  
   121  	//Single Snapshot found so set to state
   122  	return snapshotDescriptionAttributes(d, resp.Snapshots[0])
   123  }
   124  
   125  func snapshotDescriptionAttributes(d *schema.ResourceData, snapshot *ec2.Snapshot) error {
   126  	d.SetId(*snapshot.SnapshotId)
   127  	d.Set("snapshot_id", snapshot.SnapshotId)
   128  	d.Set("volume_id", snapshot.VolumeId)
   129  	d.Set("data_encryption_key_id", snapshot.DataEncryptionKeyId)
   130  	d.Set("description", snapshot.Description)
   131  	d.Set("encrypted", snapshot.Encrypted)
   132  	d.Set("kms_key_id", snapshot.KmsKeyId)
   133  	d.Set("volume_size", snapshot.VolumeSize)
   134  	d.Set("state", snapshot.State)
   135  	d.Set("owner_id", snapshot.OwnerId)
   136  	d.Set("owner_alias", snapshot.OwnerAlias)
   137  
   138  	if err := d.Set("tags", dataSourceTags(snapshot.Tags)); err != nil {
   139  		return err
   140  	}
   141  
   142  	return nil
   143  }