github.com/minamijoyo/terraform@v0.7.8-0.20161029001309-18b3736ba44b/builtin/providers/cloudstack/resource_cloudstack_network.go (about)

     1  package cloudstack
     2  
     3  import (
     4  	"fmt"
     5  	"log"
     6  	"net"
     7  	"strconv"
     8  	"strings"
     9  
    10  	"github.com/hashicorp/terraform/helper/schema"
    11  	"github.com/xanzy/go-cloudstack/cloudstack"
    12  )
    13  
    14  const none = "none"
    15  
    16  func resourceCloudStackNetwork() *schema.Resource {
    17  	aclidSchema := &schema.Schema{
    18  		Type:     schema.TypeString,
    19  		Optional: true,
    20  		Default:  none,
    21  	}
    22  
    23  	aclidSchema.StateFunc = func(v interface{}) string {
    24  		value := v.(string)
    25  
    26  		if value == none {
    27  			aclidSchema.ForceNew = true
    28  		} else {
    29  			aclidSchema.ForceNew = false
    30  		}
    31  
    32  		return value
    33  	}
    34  
    35  	return &schema.Resource{
    36  		Create: resourceCloudStackNetworkCreate,
    37  		Read:   resourceCloudStackNetworkRead,
    38  		Update: resourceCloudStackNetworkUpdate,
    39  		Delete: resourceCloudStackNetworkDelete,
    40  
    41  		Schema: map[string]*schema.Schema{
    42  			"name": &schema.Schema{
    43  				Type:     schema.TypeString,
    44  				Required: true,
    45  			},
    46  
    47  			"display_text": &schema.Schema{
    48  				Type:     schema.TypeString,
    49  				Optional: true,
    50  				Computed: true,
    51  			},
    52  
    53  			"cidr": &schema.Schema{
    54  				Type:     schema.TypeString,
    55  				Required: true,
    56  				ForceNew: true,
    57  			},
    58  
    59  			"gateway": &schema.Schema{
    60  				Type:     schema.TypeString,
    61  				Optional: true,
    62  				Computed: true,
    63  				ForceNew: true,
    64  			},
    65  
    66  			"startip": &schema.Schema{
    67  				Type:     schema.TypeString,
    68  				Optional: true,
    69  				Computed: true,
    70  				ForceNew: true,
    71  			},
    72  
    73  			"endip": &schema.Schema{
    74  				Type:     schema.TypeString,
    75  				Optional: true,
    76  				Computed: true,
    77  				ForceNew: true,
    78  			},
    79  
    80  			"network_offering": &schema.Schema{
    81  				Type:     schema.TypeString,
    82  				Required: true,
    83  			},
    84  
    85  			"vlan": &schema.Schema{
    86  				Type:     schema.TypeInt,
    87  				Optional: true,
    88  				ForceNew: true,
    89  			},
    90  
    91  			"vpc_id": &schema.Schema{
    92  				Type:     schema.TypeString,
    93  				Optional: true,
    94  				ForceNew: true,
    95  			},
    96  
    97  			"acl_id": aclidSchema,
    98  
    99  			"project": &schema.Schema{
   100  				Type:     schema.TypeString,
   101  				Optional: true,
   102  				Computed: true,
   103  				ForceNew: true,
   104  			},
   105  
   106  			"zone": &schema.Schema{
   107  				Type:     schema.TypeString,
   108  				Required: true,
   109  				ForceNew: true,
   110  			},
   111  
   112  			"tags": tagsSchema(),
   113  		},
   114  	}
   115  }
   116  
   117  func resourceCloudStackNetworkCreate(d *schema.ResourceData, meta interface{}) error {
   118  	cs := meta.(*cloudstack.CloudStackClient)
   119  
   120  	name := d.Get("name").(string)
   121  
   122  	// Retrieve the network_offering ID
   123  	networkofferingid, e := retrieveID(cs, "network_offering", d.Get("network_offering").(string))
   124  	if e != nil {
   125  		return e.Error()
   126  	}
   127  
   128  	// Retrieve the zone ID
   129  	zoneid, e := retrieveID(cs, "zone", d.Get("zone").(string))
   130  	if e != nil {
   131  		return e.Error()
   132  	}
   133  
   134  	// Compute/set the display text
   135  	displaytext, ok := d.GetOk("display_text")
   136  	if !ok {
   137  		displaytext = name
   138  	}
   139  
   140  	// Create a new parameter struct
   141  	p := cs.Network.NewCreateNetworkParams(displaytext.(string), name, networkofferingid, zoneid)
   142  
   143  	// Get the network offering to check if it supports specifying IP ranges
   144  	no, _, err := cs.NetworkOffering.GetNetworkOfferingByID(networkofferingid)
   145  	if err != nil {
   146  		return err
   147  	}
   148  
   149  	m, err := parseCIDR(d, no.Specifyipranges)
   150  	if err != nil {
   151  		return err
   152  	}
   153  
   154  	// Set the needed IP config
   155  	p.SetGateway(m["gateway"])
   156  	p.SetNetmask(m["netmask"])
   157  
   158  	// Only set the start IP if we have one
   159  	if startip, ok := m["startip"]; ok {
   160  		p.SetStartip(startip)
   161  	}
   162  
   163  	// Only set the end IP if we have one
   164  	if endip, ok := m["endip"]; ok {
   165  		p.SetEndip(endip)
   166  	}
   167  
   168  	if vlan, ok := d.GetOk("vlan"); ok {
   169  		p.SetVlan(strconv.Itoa(vlan.(int)))
   170  	}
   171  
   172  	// Check is this network needs to be created in a VPC
   173  	if vpcid, ok := d.GetOk("vpc_id"); ok {
   174  		// Set the vpc id
   175  		p.SetVpcid(vpcid.(string))
   176  
   177  		// Since we're in a VPC, check if we want to assiciate an ACL list
   178  		if aclid, ok := d.GetOk("acl_id"); ok && aclid.(string) != none {
   179  			// Set the acl ID
   180  			p.SetAclid(aclid.(string))
   181  		}
   182  	}
   183  
   184  	// If there is a project supplied, we retrieve and set the project id
   185  	if err := setProjectid(p, cs, d); err != nil {
   186  		return err
   187  	}
   188  
   189  	// Create the new network
   190  	r, err := cs.Network.CreateNetwork(p)
   191  	if err != nil {
   192  		return fmt.Errorf("Error creating network %s: %s", name, err)
   193  	}
   194  
   195  	d.SetId(r.Id)
   196  
   197  	err = setTags(cs, d, "network")
   198  	if err != nil {
   199  		return fmt.Errorf("Error setting tags: %s", err)
   200  	}
   201  
   202  	return resourceCloudStackNetworkRead(d, meta)
   203  }
   204  
   205  func resourceCloudStackNetworkRead(d *schema.ResourceData, meta interface{}) error {
   206  	cs := meta.(*cloudstack.CloudStackClient)
   207  
   208  	// Get the virtual machine details
   209  	n, count, err := cs.Network.GetNetworkByID(
   210  		d.Id(),
   211  		cloudstack.WithProject(d.Get("project").(string)),
   212  	)
   213  	if err != nil {
   214  		if count == 0 {
   215  			log.Printf(
   216  				"[DEBUG] Network %s does no longer exist", d.Get("name").(string))
   217  			d.SetId("")
   218  			return nil
   219  		}
   220  
   221  		return err
   222  	}
   223  
   224  	d.Set("name", n.Name)
   225  	d.Set("display_text", n.Displaytext)
   226  	d.Set("cidr", n.Cidr)
   227  	d.Set("gateway", n.Gateway)
   228  	d.Set("vpc_id", n.Vpcid)
   229  
   230  	if n.Aclid == "" {
   231  		n.Aclid = none
   232  	}
   233  	d.Set("acl_id", n.Aclid)
   234  
   235  	// Read the tags and store them in a map
   236  	tags := make(map[string]interface{})
   237  	for item := range n.Tags {
   238  		tags[n.Tags[item].Key] = n.Tags[item].Value
   239  	}
   240  	d.Set("tags", tags)
   241  
   242  	setValueOrID(d, "network_offering", n.Networkofferingname, n.Networkofferingid)
   243  	setValueOrID(d, "project", n.Project, n.Projectid)
   244  	setValueOrID(d, "zone", n.Zonename, n.Zoneid)
   245  
   246  	return nil
   247  }
   248  
   249  func resourceCloudStackNetworkUpdate(d *schema.ResourceData, meta interface{}) error {
   250  	cs := meta.(*cloudstack.CloudStackClient)
   251  	name := d.Get("name").(string)
   252  
   253  	// Create a new parameter struct
   254  	p := cs.Network.NewUpdateNetworkParams(d.Id())
   255  
   256  	// Check if the name or display text is changed
   257  	if d.HasChange("name") || d.HasChange("display_text") {
   258  		p.SetName(name)
   259  
   260  		// Compute/set the display text
   261  		displaytext := d.Get("display_text").(string)
   262  		if displaytext == "" {
   263  			displaytext = name
   264  		}
   265  		p.SetDisplaytext(displaytext)
   266  	}
   267  
   268  	// Check if the cidr is changed
   269  	if d.HasChange("cidr") {
   270  		p.SetGuestvmcidr(d.Get("cidr").(string))
   271  	}
   272  
   273  	// Check if the network offering is changed
   274  	if d.HasChange("network_offering") {
   275  		// Retrieve the network_offering ID
   276  		networkofferingid, e := retrieveID(cs, "network_offering", d.Get("network_offering").(string))
   277  		if e != nil {
   278  			return e.Error()
   279  		}
   280  		// Set the new network offering
   281  		p.SetNetworkofferingid(networkofferingid)
   282  	}
   283  
   284  	// Update the network
   285  	_, err := cs.Network.UpdateNetwork(p)
   286  	if err != nil {
   287  		return fmt.Errorf(
   288  			"Error updating network %s: %s", name, err)
   289  	}
   290  
   291  	// Replace the ACL if the ID has changed
   292  	if d.HasChange("acl_id") {
   293  		p := cs.NetworkACL.NewReplaceNetworkACLListParams(d.Get("acl_id").(string))
   294  		p.SetNetworkid(d.Id())
   295  
   296  		_, err := cs.NetworkACL.ReplaceNetworkACLList(p)
   297  		if err != nil {
   298  			return fmt.Errorf("Error replacing ACL: %s", err)
   299  		}
   300  	}
   301  
   302  	// Update tags if they have changed
   303  	if d.HasChange("tags") {
   304  		err = setTags(cs, d, "network")
   305  		if err != nil {
   306  			return fmt.Errorf("Error updating tags: %s", err)
   307  		}
   308  	}
   309  
   310  	return resourceCloudStackNetworkRead(d, meta)
   311  }
   312  
   313  func resourceCloudStackNetworkDelete(d *schema.ResourceData, meta interface{}) error {
   314  	cs := meta.(*cloudstack.CloudStackClient)
   315  
   316  	// Create a new parameter struct
   317  	p := cs.Network.NewDeleteNetworkParams(d.Id())
   318  
   319  	// Delete the network
   320  	_, err := cs.Network.DeleteNetwork(p)
   321  	if err != nil {
   322  		// This is a very poor way to be told the ID does no longer exist :(
   323  		if strings.Contains(err.Error(), fmt.Sprintf(
   324  			"Invalid parameter id value=%s due to incorrect long value format, "+
   325  				"or entity does not exist", d.Id())) {
   326  			return nil
   327  		}
   328  
   329  		return fmt.Errorf("Error deleting network %s: %s", d.Get("name").(string), err)
   330  	}
   331  	return nil
   332  }
   333  
   334  func parseCIDR(d *schema.ResourceData, specifyiprange bool) (map[string]string, error) {
   335  	m := make(map[string]string, 4)
   336  
   337  	cidr := d.Get("cidr").(string)
   338  	ip, ipnet, err := net.ParseCIDR(cidr)
   339  	if err != nil {
   340  		return nil, fmt.Errorf("Unable to parse cidr %s: %s", cidr, err)
   341  	}
   342  
   343  	msk := ipnet.Mask
   344  	sub := ip.Mask(msk)
   345  
   346  	m["netmask"] = fmt.Sprintf("%d.%d.%d.%d", msk[0], msk[1], msk[2], msk[3])
   347  
   348  	if gateway, ok := d.GetOk("gateway"); ok {
   349  		m["gateway"] = gateway.(string)
   350  	} else {
   351  		m["gateway"] = fmt.Sprintf("%d.%d.%d.%d", sub[0], sub[1], sub[2], sub[3]+1)
   352  	}
   353  
   354  	if startip, ok := d.GetOk("startip"); ok {
   355  		m["startip"] = startip.(string)
   356  	} else if specifyiprange {
   357  		m["startip"] = fmt.Sprintf("%d.%d.%d.%d", sub[0], sub[1], sub[2], sub[3]+2)
   358  	}
   359  
   360  	if endip, ok := d.GetOk("endip"); ok {
   361  		m["endip"] = endip.(string)
   362  	} else if specifyiprange {
   363  		m["endip"] = fmt.Sprintf("%d.%d.%d.%d",
   364  			sub[0]+(0xff-msk[0]), sub[1]+(0xff-msk[1]), sub[2]+(0xff-msk[2]), sub[3]+(0xff-msk[3]-1))
   365  	}
   366  
   367  	return m, nil
   368  }