Merge pull request #3898 from terraform-providers/f-waf-rule-group

New Resource: aws_waf_rule_group

aws/provider.go

@@ -550,6 +550,7 @@ func Provider() terraform.ResourceProvider {
 			"aws_waf_rate_based_rule":                      resourceAwsWafRateBasedRule(),
 			"aws_waf_regex_pattern_set":                    resourceAwsWafRegexPatternSet(),
 			"aws_waf_rule":                                 resourceAwsWafRule(),
+			"aws_waf_rule_group":                           resourceAwsWafRuleGroup(),
 			"aws_waf_size_constraint_set":                  resourceAwsWafSizeConstraintSet(),
 			"aws_waf_web_acl":                              resourceAwsWafWebAcl(),
 			"aws_waf_xss_match_set":                        resourceAwsWafXssMatchSet(),

aws/resource_aws_waf_rule_group.go

@@ -0,0 +1,187 @@
+package aws
+
+import (
+	"fmt"
+	"log"
+
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/service/waf"
+	"github.com/hashicorp/terraform/helper/schema"
+)
+
+func resourceAwsWafRuleGroup() *schema.Resource {
+	return &schema.Resource{
+		Create: resourceAwsWafRuleGroupCreate,
+		Read:   resourceAwsWafRuleGroupRead,
+		Update: resourceAwsWafRuleGroupUpdate,
+		Delete: resourceAwsWafRuleGroupDelete,
+
+		Schema: map[string]*schema.Schema{
+			"name": {
+				Type:     schema.TypeString,
+				Required: true,
+				ForceNew: true,
+			},
+			"metric_name": {
+				Type:         schema.TypeString,
+				Required:     true,
+				ForceNew:     true,
+				ValidateFunc: validateWafMetricName,
+			},
+			"activated_rule": {
+				Type:     schema.TypeSet,
+				Optional: true,
+				Elem: &schema.Resource{
+					Schema: map[string]*schema.Schema{
+						"action": {
+							Type:     schema.TypeList,
+							MaxItems: 1,
+							Required: true,
+							Elem: &schema.Resource{
+								Schema: map[string]*schema.Schema{
+									"type": {
+										Type:     schema.TypeString,
+										Required: true,
+									},
+								},
+							},
+						},
+						"priority": {
+							Type:     schema.TypeInt,
+							Required: true,
+						},
+						"rule_id": {
+							Type:     schema.TypeString,
+							Required: true,
+						},
+						"type": {
+							Type:     schema.TypeString,
+							Optional: true,
+							Default:  waf.WafRuleTypeRegular,
+						},
+					},
+				},
+			},
+		},
+	}
+}
+
+func resourceAwsWafRuleGroupCreate(d *schema.ResourceData, meta interface{}) error {
+	conn := meta.(*AWSClient).wafconn
+
+	wr := newWafRetryer(conn, "global")
+	out, err := wr.RetryWithToken(func(token *string) (interface{}, error) {
+		params := &waf.CreateRuleGroupInput{
+			ChangeToken: token,
+			MetricName:  aws.String(d.Get("metric_name").(string)),
+			Name:        aws.String(d.Get("name").(string)),
+		}
+
+		return conn.CreateRuleGroup(params)
+	})
+	if err != nil {
+		return err
+	}
+	resp := out.(*waf.CreateRuleGroupOutput)
+	d.SetId(*resp.RuleGroup.RuleGroupId)
+	return resourceAwsWafRuleGroupUpdate(d, meta)
+}
+
+func resourceAwsWafRuleGroupRead(d *schema.ResourceData, meta interface{}) error {
+	conn := meta.(*AWSClient).wafconn
+
+	params := &waf.GetRuleGroupInput{
+		RuleGroupId: aws.String(d.Id()),
+	}
+
+	resp, err := conn.GetRuleGroup(params)
+	if err != nil {
+		if isAWSErr(err, "WAFNonexistentItemException", "") {
+			log.Printf("[WARN] WAF Rule Group (%s) not found, removing from state", d.Id())
+			d.SetId("")
+			return nil
+		}
+
+		return err
+	}
+
+	rResp, err := conn.ListActivatedRulesInRuleGroup(&waf.ListActivatedRulesInRuleGroupInput{
+		RuleGroupId: aws.String(d.Id()),
+	})
+
+	d.Set("activated_rule", flattenWafActivatedRules(rResp.ActivatedRules))
+	d.Set("name", resp.RuleGroup.Name)
+	d.Set("metric_name", resp.RuleGroup.MetricName)
+
+	return nil
+}
+
+func resourceAwsWafRuleGroupUpdate(d *schema.ResourceData, meta interface{}) error {
+	conn := meta.(*AWSClient).wafconn
+
+	if d.HasChange("activated_rule") {
+		o, n := d.GetChange("activated_rule")
+		oldRules, newRules := o.(*schema.Set).List(), n.(*schema.Set).List()
+
+		err := updateWafRuleGroupResource(d.Id(), oldRules, newRules, conn)
+		if err != nil {
+			return fmt.Errorf("Error Updating WAF Rule Group: %s", err)
+		}
+	}
+
+	return resourceAwsWafRuleGroupRead(d, meta)
+}
+
+func resourceAwsWafRuleGroupDelete(d *schema.ResourceData, meta interface{}) error {
+	conn := meta.(*AWSClient).wafconn
+
+	oldRules := d.Get("activated_rule").(*schema.Set).List()
+	err := deleteWafRuleGroup(d.Id(), oldRules, conn)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func deleteWafRuleGroup(id string, oldRules []interface{}, conn *waf.WAF) error {
+	if len(oldRules) > 0 {
+		noRules := []interface{}{}
+		err := updateWafRuleGroupResource(id, oldRules, noRules, conn)
+		if err != nil {
+			return fmt.Errorf("Error updating WAF Rule Group Predicates: %s", err)
+		}
+	}
+
+	wr := newWafRetryer(conn, "global")
+	_, err := wr.RetryWithToken(func(token *string) (interface{}, error) {
+		req := &waf.DeleteRuleGroupInput{
+			ChangeToken: token,
+			RuleGroupId: aws.String(id),
+		}
+		log.Printf("[INFO] Deleting WAF Rule Group")
+		return conn.DeleteRuleGroup(req)
+	})
+	if err != nil {
+		return fmt.Errorf("Error deleting WAF Rule Group: %s", err)
+	}
+	return nil
+}
+
+func updateWafRuleGroupResource(id string, oldRules, newRules []interface{}, conn *waf.WAF) error {
+	wr := newWafRetryer(conn, "global")
+	_, err := wr.RetryWithToken(func(token *string) (interface{}, error) {
+		req := &waf.UpdateRuleGroupInput{
+			ChangeToken: token,
+			RuleGroupId: aws.String(id),
+			Updates:     diffWafRuleGroupActivatedRules(oldRules, newRules),
+		}
+
+		return conn.UpdateRuleGroup(req)
+	})
+	if err != nil {
+		return fmt.Errorf("Error Updating WAF Rule Group: %s", err)
+	}
+
+	return nil
+}