terraform/builtin/providers/aws/import_aws_security_group.go

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2016-05-04 22:34:04 +02:00
package aws
import (
"fmt"
"github.com/aws/aws-sdk-go/service/ec2"
"github.com/hashicorp/terraform/helper/schema"
)
// Security group import fans out to multiple resources due to the
// security group rules. Instead of creating one resource with nested
// rules, we use the best practices approach of one resource per rule.
func resourceAwsSecurityGroupImportState(
d *schema.ResourceData,
meta interface{}) ([]*schema.ResourceData, error) {
conn := meta.(*AWSClient).ec2conn
// First query the security group
sgRaw, _, err := SGStateRefreshFunc(conn, d.Id())()
if err != nil {
return nil, err
}
if sgRaw == nil {
return nil, fmt.Errorf("security group not found")
}
sg := sgRaw.(*ec2.SecurityGroup)
sgId := d.Id()
// Start building our results
results := make([]*schema.ResourceData, 1,
1+len(sg.IpPermissions)+len(sg.IpPermissionsEgress))
results[0] = d
// Construct the rules
ruleResource := resourceAwsSecurityGroupRule()
permMap := map[string][]*ec2.IpPermission{
"ingress": sg.IpPermissions,
"egress": sg.IpPermissionsEgress,
}
for ruleType, perms := range permMap {
for _, perm := range perms {
// Construct the rule. We do this by populating the absolute
// minimum necessary for Refresh on the rule to work. This
// happens to be a lot of fields since they're almost all needed
// for de-dupping.
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id := ipPermissionIDHash(sgId, ruleType, perm)
d := ruleResource.Data(nil)
d.SetId(id)
d.SetType("aws_security_group_rule")
d.Set("security_group_id", sgId)
d.Set("type", ruleType)
// 'self' is false by default. Below, we range over the group ids and set true
// if the parent sg id is found
d.Set("self", false)
if len(perm.UserIdGroupPairs) > 0 {
s := perm.UserIdGroupPairs[0]
// Check for Pair that is the same as the Security Group, to denote self.
// Otherwise, mark the group id in source_security_group_id
isVPC := sg.VpcId != nil && *sg.VpcId != ""
if isVPC {
if *s.GroupId == *sg.GroupId {
d.Set("self", true)
// prune the self reference from the UserIdGroupPairs, so we don't
// have duplicate sg ids (both self and in source_security_group_id)
perm.UserIdGroupPairs = append(perm.UserIdGroupPairs[:0], perm.UserIdGroupPairs[0+1:]...)
}
} else {
if *s.GroupName == *sg.GroupName {
d.Set("self", true)
// prune the self reference from the UserIdGroupPairs, so we don't
// have duplicate sg ids (both self and in source_security_group_id)
perm.UserIdGroupPairs = append(perm.UserIdGroupPairs[:0], perm.UserIdGroupPairs[0+1:]...)
}
}
}
// XXX If the rule contained more than one source security group, this
// will choose one of them. We actually need to create one rule for each
// source security group.
setFromIPPerm(d, sg, perm)
results = append(results, d)
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}
}
return results, nil
}