github.com/koding/terraform@v0.6.4-0.20170608090606-5d7e0339779d/builtin/providers/google/resource_compute_project_metadata.go (about)

     1  package google
     2  
     3  import (
     4  	"fmt"
     5  	"log"
     6  
     7  	"github.com/hashicorp/terraform/helper/schema"
     8  	"google.golang.org/api/compute/v1"
     9  )
    10  
    11  func resourceComputeProjectMetadata() *schema.Resource {
    12  	return &schema.Resource{
    13  		Create: resourceComputeProjectMetadataCreate,
    14  		Read:   resourceComputeProjectMetadataRead,
    15  		Update: resourceComputeProjectMetadataUpdate,
    16  		Delete: resourceComputeProjectMetadataDelete,
    17  
    18  		SchemaVersion: 0,
    19  
    20  		Schema: map[string]*schema.Schema{
    21  			"metadata": &schema.Schema{
    22  				Elem:     schema.TypeString,
    23  				Type:     schema.TypeMap,
    24  				Required: true,
    25  			},
    26  
    27  			"project": &schema.Schema{
    28  				Type:     schema.TypeString,
    29  				Optional: true,
    30  				ForceNew: true,
    31  			},
    32  		},
    33  	}
    34  }
    35  
    36  func resourceComputeProjectMetadataCreate(d *schema.ResourceData, meta interface{}) error {
    37  	config := meta.(*Config)
    38  
    39  	projectID, err := getProject(d, config)
    40  	if err != nil {
    41  		return err
    42  	}
    43  
    44  	createMD := func() error {
    45  		// Load project service
    46  		log.Printf("[DEBUG] Loading project service: %s", projectID)
    47  		project, err := config.clientCompute.Projects.Get(projectID).Do()
    48  		if err != nil {
    49  			return fmt.Errorf("Error loading project '%s': %s", projectID, err)
    50  		}
    51  
    52  		md := project.CommonInstanceMetadata
    53  
    54  		newMDMap := d.Get("metadata").(map[string]interface{})
    55  		// Ensure that we aren't overwriting entries that already exist
    56  		for _, kv := range md.Items {
    57  			if _, ok := newMDMap[kv.Key]; ok {
    58  				return fmt.Errorf("Error, key '%s' already exists in project '%s'", kv.Key, projectID)
    59  			}
    60  		}
    61  
    62  		// Append new metadata to existing metadata
    63  		for key, val := range newMDMap {
    64  			v := val.(string)
    65  			md.Items = append(md.Items, &compute.MetadataItems{
    66  				Key:   key,
    67  				Value: &v,
    68  			})
    69  		}
    70  
    71  		op, err := config.clientCompute.Projects.SetCommonInstanceMetadata(projectID, md).Do()
    72  
    73  		if err != nil {
    74  			return fmt.Errorf("SetCommonInstanceMetadata failed: %s", err)
    75  		}
    76  
    77  		log.Printf("[DEBUG] SetCommonMetadata: %d (%s)", op.Id, op.SelfLink)
    78  
    79  		return computeOperationWaitGlobal(config, op, project.Name, "SetCommonMetadata")
    80  	}
    81  
    82  	err = MetadataRetryWrapper(createMD)
    83  	if err != nil {
    84  		return err
    85  	}
    86  
    87  	return resourceComputeProjectMetadataRead(d, meta)
    88  }
    89  
    90  func resourceComputeProjectMetadataRead(d *schema.ResourceData, meta interface{}) error {
    91  	config := meta.(*Config)
    92  
    93  	projectID, err := getProject(d, config)
    94  	if err != nil {
    95  		return err
    96  	}
    97  
    98  	// Load project service
    99  	log.Printf("[DEBUG] Loading project service: %s", projectID)
   100  	project, err := config.clientCompute.Projects.Get(projectID).Do()
   101  	if err != nil {
   102  		return handleNotFoundError(err, d, fmt.Sprintf("Project metadata for project %q", projectID))
   103  	}
   104  
   105  	md := project.CommonInstanceMetadata
   106  
   107  	if err = d.Set("metadata", MetadataFormatSchema(d.Get("metadata").(map[string]interface{}), md)); err != nil {
   108  		return fmt.Errorf("Error setting metadata: %s", err)
   109  	}
   110  
   111  	d.SetId("common_metadata")
   112  
   113  	return nil
   114  }
   115  
   116  func resourceComputeProjectMetadataUpdate(d *schema.ResourceData, meta interface{}) error {
   117  	config := meta.(*Config)
   118  
   119  	projectID, err := getProject(d, config)
   120  	if err != nil {
   121  		return err
   122  	}
   123  
   124  	if d.HasChange("metadata") {
   125  		o, n := d.GetChange("metadata")
   126  
   127  		updateMD := func() error {
   128  			// Load project service
   129  			log.Printf("[DEBUG] Loading project service: %s", projectID)
   130  			project, err := config.clientCompute.Projects.Get(projectID).Do()
   131  			if err != nil {
   132  				return fmt.Errorf("Error loading project '%s': %s", projectID, err)
   133  			}
   134  
   135  			md := project.CommonInstanceMetadata
   136  
   137  			MetadataUpdate(o.(map[string]interface{}), n.(map[string]interface{}), md)
   138  
   139  			op, err := config.clientCompute.Projects.SetCommonInstanceMetadata(projectID, md).Do()
   140  
   141  			if err != nil {
   142  				return fmt.Errorf("SetCommonInstanceMetadata failed: %s", err)
   143  			}
   144  
   145  			log.Printf("[DEBUG] SetCommonMetadata: %d (%s)", op.Id, op.SelfLink)
   146  
   147  			// Optimistic locking requires the fingerprint received to match
   148  			// the fingerprint we send the server, if there is a mismatch then we
   149  			// are working on old data, and must retry
   150  			return computeOperationWaitGlobal(config, op, project.Name, "SetCommonMetadata")
   151  		}
   152  
   153  		err := MetadataRetryWrapper(updateMD)
   154  		if err != nil {
   155  			return err
   156  		}
   157  
   158  		return resourceComputeProjectMetadataRead(d, meta)
   159  	}
   160  
   161  	return nil
   162  }
   163  
   164  func resourceComputeProjectMetadataDelete(d *schema.ResourceData, meta interface{}) error {
   165  	config := meta.(*Config)
   166  
   167  	projectID, err := getProject(d, config)
   168  	if err != nil {
   169  		return err
   170  	}
   171  
   172  	// Load project service
   173  	log.Printf("[DEBUG] Loading project service: %s", projectID)
   174  	project, err := config.clientCompute.Projects.Get(projectID).Do()
   175  	if err != nil {
   176  		return fmt.Errorf("Error loading project '%s': %s", projectID, err)
   177  	}
   178  
   179  	md := project.CommonInstanceMetadata
   180  
   181  	// Remove all items
   182  	md.Items = nil
   183  
   184  	op, err := config.clientCompute.Projects.SetCommonInstanceMetadata(projectID, md).Do()
   185  
   186  	if err != nil {
   187  		return fmt.Errorf("Error removing metadata from project %s: %s", projectID, err)
   188  	}
   189  
   190  	log.Printf("[DEBUG] SetCommonMetadata: %d (%s)", op.Id, op.SelfLink)
   191  
   192  	err = computeOperationWaitGlobal(config, op, project.Name, "SetCommonMetadata")
   193  	if err != nil {
   194  		return err
   195  	}
   196  
   197  	return resourceComputeProjectMetadataRead(d, meta)
   198  }