Merge pull request #161 from preved911/feature/add_aws_kinesis_target_support

Adding AWS Kinesis support

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Changelog
 
+# 2.9.4
+* Policy Reporter
+    * Add [AWS Kinesis](https://aws.amazon.com/kinesis) compatible target
+
 # 2.9.3
 * Policy Reporter
     * Fix `grafana.dashboards.value` type conversion [[fix #158](https://github.com/kyverno/policy-reporter/issues/158)]

charts/policy-reporter/Chart.yaml

@@ -5,8 +5,8 @@ description: |
   It creates Prometheus Metrics and can send rule validation events to different targets like Loki, Elasticsearch, Slack or Discord
 
 type: application
-version: 2.9.3
-appVersion: 2.6.1
+version: 2.9.4
+appVersion: 2.6.2
 
 icon: https://github.com/kyverno/kyverno/raw/main/img/logo.png
 home: https://kyverno.github.io/policy-reporter

charts/policy-reporter/config.yaml

@@ -137,6 +137,27 @@ s3:
     {{- toYaml . | nindent 4 }}
   {{- end }}
 
+kinesis:
+  accessKeyID: {{ .Values.target.kinesis.accessKeyID }}
+  secretAccessKey:  {{ .Values.target.kinesis.secretAccessKey }}
+  region: {{ .Values.target.kinesis.region }}
+  endpoint: {{ .Values.target.kinesis.endpoint }}
+  streamName: {{ .Values.target.kinesis.streamName }}
+  minimumPriority: {{ .Values.target.kinesis.minimumPriority | quote }}
+  skipExistingOnStartup: {{ .Values.target.kinesis.skipExistingOnStartup }}
+  {{- with .Values.target.kinesis.sources }}
+  sources:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+  {{- with .Values.target.kinesis.filter }}
+  filter:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+  {{- with .Values.target.kinesis.channels }}
+  channels:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+
 {{- with .Values.policyPriorities }}
 priorityMap:
   {{- toYaml . | nindent 2 }}

charts/policy-reporter/values.yaml

@@ -314,6 +314,28 @@ target:
     # add additional s3 channels with different configurations and filters
     channels: []
 
+  kinesis:
+    # AWS access key
+    accessKeyID: ""
+    # AWS secret access key
+    secretAccessKey: ""
+    # AWS region
+    region: ""
+    # AWS Kinesis endpoint
+    endpoint: ""
+    # AWS Kinesis stream name
+    streamName: ""
+    # minimum priority "" < info < warning < critical < error
+    minimumPriority: ""
+    # list of sources which should send to S3
+    sources: []
+    # Skip already existing PolicyReportResults on startup
+    skipExistingOnStartup: true
+    # filter results send by namespaces, policies and priorities
+    filter: {}
+    # add additional s3 channels with different configurations and filters
+    channels: []
+
 # Node labels for pod assignment
 # ref: https://kubernetes.io/docs/user-guide/node-selection/
 nodeSelector: {}

pkg/config/config.go

@@ -112,6 +112,20 @@ type S3 struct {
 	Channels        []S3         `mapstructure:"channels"`
 }
 
+type Kinesis struct {
+	Name            string       `mapstructure:"name"`
+	AccessKeyID     string       `mapstructure:"accessKeyID"`
+	SecretAccessKey string       `mapstructure:"secretAccessKey"`
+	Region          string       `mapstructure:"region"`
+	Endpoint        string       `mapstructure:"endpoint"`
+	StreamName      string       `mapstructure:"streamName"`
+	SkipExisting    bool         `mapstructure:"skipExistingOnStartup"`
+	MinimumPriority string       `mapstructure:"minimumPriority"`
+	Filter          TargetFilter `mapstructure:"filter"`
+	Sources         []string     `mapstructure:"sources"`
+	Channels        []Kinesis    `mapstructure:"channels"`
+}
+
 // API configuration
 type API struct {
 	Port int `mapstructure:"port"`
@@ -165,6 +179,7 @@ type Config struct {
 	Discord       Discord       `mapstructure:"discord"`
 	Teams         Teams         `mapstructure:"teams"`
 	S3            S3            `mapstructure:"s3"`
+	Kinesis       Kinesis       `mapstructure:"kinesis"`
 	UI            UI            `mapstructure:"ui"`
 	Webhook       Webhook       `mapstructure:"webhook"`
 	API           API           `mapstructure:"api"`

pkg/config/resolver.go

@@ -19,6 +19,7 @@ import (
 	"github.com/kyverno/policy-reporter/pkg/target"
 	"github.com/kyverno/policy-reporter/pkg/target/discord"
 	"github.com/kyverno/policy-reporter/pkg/target/elasticsearch"
+	"github.com/kyverno/policy-reporter/pkg/target/kinesis"
 	"github.com/kyverno/policy-reporter/pkg/target/loki"
 	"github.com/kyverno/policy-reporter/pkg/target/s3"
 	"github.com/kyverno/policy-reporter/pkg/target/slack"
@@ -292,7 +293,7 @@ func (r *Resolver) UIClient() target.Client {
 	)
 }
 
-// TeamsClients resolver method
+// S3Clients resolver method
 func (r *Resolver) S3Clients() []target.Client {
 	clients := make([]target.Client, 0)
 	if r.config.S3.Name == "" {
@@ -315,6 +316,29 @@ func (r *Resolver) S3Clients() []target.Client {
 	return clients
 }
 
+// KinesisClients resolver method
+func (r *Resolver) KinesisClients() []target.Client {
+	clients := make([]target.Client, 0)
+	if r.config.Kinesis.Name == "" {
+		r.config.Kinesis.Name = "Kinesis"
+	}
+
+	if es := createKinesisClient(r.config.Kinesis, Kinesis{}); es != nil {
+		clients = append(clients, es)
+	}
+	for i, channel := range r.config.Kinesis.Channels {
+		if channel.Name == "" {
+			channel.Name = fmt.Sprintf("Kinesis Channel %d", i+1)
+		}
+
+		if es := createKinesisClient(channel, r.config.Kinesis); es != nil {
+			clients = append(clients, es)
+		}
+	}
+
+	return clients
+}
+
 // TargetClients resolver method
 func (r *Resolver) TargetClients() []target.Client {
 	if len(r.targetClients) > 0 {
@@ -329,6 +353,7 @@ func (r *Resolver) TargetClients() []target.Client {
 	clients = append(clients, r.DiscordClients()...)
 	clients = append(clients, r.TeamsClients()...)
 	clients = append(clients, r.S3Clients()...)
+	clients = append(clients, r.KinesisClients()...)
 	clients = append(clients, r.WebhookClients()...)
 
 	if ui := r.UIClient(); ui != nil {
@@ -631,7 +656,7 @@ func createS3Client(config S3, parent S3) target.Client {
 		config.SkipExisting = parent.SkipExisting
 	}
 
-	s3Client := helper.NewClient(
+	s3Client := helper.NewS3Client(
 		config.AccessKeyID,
 		config.SecretAccessKey,
 		config.Region,
@@ -650,6 +675,67 @@ func createS3Client(config S3, parent S3) target.Client {
 	)
 }
 
+func createKinesisClient(config Kinesis, parent Kinesis) target.Client {
+	if config.Endpoint == "" && parent.Endpoint == "" {
+		return nil
+	} else if config.Endpoint == "" {
+		config.Endpoint = parent.Endpoint
+	}
+
+	if config.AccessKeyID == "" && parent.AccessKeyID == "" {
+		log.Printf("[ERROR] %s.AccessKeyID has not been declared", config.Name)
+		return nil
+	} else if config.AccessKeyID == "" {
+		config.AccessKeyID = parent.AccessKeyID
+	}
+
+	if config.SecretAccessKey == "" && parent.SecretAccessKey == "" {
+		log.Printf("[ERROR] %s.SecretAccessKey has not been declared", config.Name)
+		return nil
+	} else if config.SecretAccessKey == "" {
+		config.SecretAccessKey = parent.SecretAccessKey
+	}
+
+	if config.Region == "" && parent.Region == "" {
+		log.Printf("[ERROR] %s.Region has not been declared", config.Name)
+		return nil
+	} else if config.Region == "" {
+		config.Region = parent.Region
+	}
+
+	if config.StreamName == "" && parent.StreamName == "" {
+		log.Printf("[ERROR] %s.StreamName has not been declared", config.Name)
+		return nil
+	} else if config.StreamName == "" {
+		config.StreamName = parent.StreamName
+	}
+
+	if config.MinimumPriority == "" {
+		config.MinimumPriority = parent.MinimumPriority
+	}
+
+	if !config.SkipExisting {
+		config.SkipExisting = parent.SkipExisting
+	}
+
+	kinesisClient := helper.NewKinesisClient(
+		config.AccessKeyID,
+		config.SecretAccessKey,
+		config.Region,
+		config.Endpoint,
+		config.StreamName,
+	)
+
+	log.Printf("[INFO] %s configured", config.Name)
+
+	return kinesis.NewClient(
+		config.Name,
+		kinesisClient,
+		config.SkipExisting,
+		createTargetFilter(config.Filter, config.MinimumPriority, config.Sources),
+	)
+}
+
 func createTargetFilter(filter TargetFilter, minimumPriority string, sources []string) *target.Filter {
 	return &target.Filter{
 		MinimumPriority: minimumPriority,

pkg/helper/aws.go

@@ -0,0 +1,87 @@
+package helper
+
+import (
+	"bytes"
+	"io"
+	"log"
+
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/aws/credentials"
+	"github.com/aws/aws-sdk-go/aws/session"
+	"github.com/aws/aws-sdk-go/service/kinesis"
+	"github.com/aws/aws-sdk-go/service/s3/s3manager"
+)
+
+type AWSClient interface {
+	// Upload given Data the configured AWS storage
+	Upload(body *bytes.Buffer, key string) error
+}
+
+type s3Client struct {
+	bucket   string
+	uploader *s3manager.Uploader
+}
+
+func (s *s3Client) Upload(body *bytes.Buffer, key string) error {
+	_, err := s.uploader.Upload(&s3manager.UploadInput{
+		Bucket: aws.String(s.bucket),
+		Key:    aws.String(key),
+		Body:   body,
+	})
+	return err
+}
+
+// NewS3Client creates a new S3.client to send Results to S3
+func NewS3Client(accessKeyID, secretAccessKey, region, endpoint, bucket string) AWSClient {
+	sess, err := session.NewSession(&aws.Config{
+		Region:      aws.String(region),
+		Endpoint:    aws.String(endpoint),
+		Credentials: credentials.NewStaticCredentials(accessKeyID, secretAccessKey, ""),
+	})
+	if err != nil {
+		log.Printf("[ERROR]: %v\n", "Error while creating S3 Session")
+		return nil
+	}
+
+	return &s3Client{
+		bucket,
+		s3manager.NewUploader(sess),
+	}
+}
+
+type kinesisClient struct {
+	streamName string
+	kinesis    *kinesis.Kinesis
+}
+
+func (k *kinesisClient) Upload(body *bytes.Buffer, key string) error {
+	data, err := io.ReadAll(body)
+	if err != nil {
+		return err
+	}
+
+	_, err = k.kinesis.PutRecord(&kinesis.PutRecordInput{
+		StreamName:   aws.String(k.streamName),
+		PartitionKey: aws.String(key),
+		Data:         data,
+	})
+	return err
+}
+
+// NewKinesisClient creates a new S3.client to send Results to S3
+func NewKinesisClient(accessKeyID, secretAccessKey, region, endpoint, streamName string) AWSClient {
+	sess, err := session.NewSession(&aws.Config{
+		Region:      aws.String(region),
+		Endpoint:    aws.String(endpoint),
+		Credentials: credentials.NewStaticCredentials(accessKeyID, secretAccessKey, ""),
+	})
+	if err != nil {
+		log.Printf("[ERROR]: %v\n", "Error while creating S3 Session")
+		return nil
+	}
+
+	return &kinesisClient{
+		streamName,
+		kinesis.New(sess),
+	}
+}

pkg/helper/s3.go

@@ -1,48 +0,0 @@
-package helper
-
-import (
-	"bytes"
-	"log"
-
-	"github.com/aws/aws-sdk-go/aws"
-	"github.com/aws/aws-sdk-go/aws/credentials"
-	"github.com/aws/aws-sdk-go/aws/session"
-	"github.com/aws/aws-sdk-go/service/s3/s3manager"
-)
-
-type S3Client interface {
-	// Upload given Data the configured S3 storage
-	Upload(body *bytes.Buffer, key string) error
-}
-
-type s3Client struct {
-	bucket   string
-	uploader *s3manager.Uploader
-}
-
-func (s *s3Client) Upload(body *bytes.Buffer, key string) error {
-	_, err := s.uploader.Upload(&s3manager.UploadInput{
-		Bucket: aws.String(s.bucket),
-		Key:    aws.String(key),
-		Body:   body,
-	})
-	return err
-}
-
-// NewClient creates a new S3.client to send Results to S3. It doesnt' work right now
-func NewClient(accessKeyID, secretAccessKey, region, endpoint, bucket string) S3Client {
-	sess, err := session.NewSession(&aws.Config{
-		Region:      aws.String(region),
-		Endpoint:    aws.String(endpoint),
-		Credentials: credentials.NewStaticCredentials(accessKeyID, secretAccessKey, ""),
-	})
-	if err != nil {
-		log.Printf("[ERROR]: %v\n", "Error while creating S3 Session")
-		return nil
-	}
-
-	return &s3Client{
-		bucket,
-		s3manager.NewUploader(sess),
-	}
-}

pkg/target/kinesis/kinesis.go

@@ -0,0 +1,44 @@
+package kinesis
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"log"
+	"time"
+
+	"github.com/kyverno/policy-reporter/pkg/helper"
+	"github.com/kyverno/policy-reporter/pkg/report"
+	"github.com/kyverno/policy-reporter/pkg/target"
+)
+
+type client struct {
+	target.BaseClient
+	kinesis helper.AWSClient
+}
+
+func (c *client) Send(result *report.Result) {
+	body := new(bytes.Buffer)
+
+	if err := json.NewEncoder(body).Encode(result); err != nil {
+		log.Printf("[ERROR] %s : %v\n", c.Name(), err.Error())
+		return
+	}
+	key := fmt.Sprintf("%s-%s-%s", result.Policy, result.ID, result.Timestamp.Format(time.RFC3339Nano))
+
+	err := c.kinesis.Upload(body, key)
+	if err != nil {
+		log.Printf("[ERROR] %s : Kinesis Upload error %v \n", c.Name(), err.Error())
+		return
+	}
+
+	log.Printf("[INFO] %s PUSH OK", c.Name())
+}
+
+// NewClient creates a new Kinesis.client to send Results to AWS Kinesis compatible source
+func NewClient(name string, kinesis helper.AWSClient, skipExistingOnStartup bool, filter *target.Filter) target.Client {
+	return &client{
+		target.NewBaseClient(name, skipExistingOnStartup, filter),
+		kinesis,
+	}
+}

pkg/target/kinesis/kinesis_test.go

@@ -0,0 +1,70 @@
+package kinesis_test
+
+import (
+	"bytes"
+	"encoding/json"
+	"testing"
+
+	"github.com/kyverno/policy-reporter/pkg/report"
+	"github.com/kyverno/policy-reporter/pkg/target"
+	"github.com/kyverno/policy-reporter/pkg/target/kinesis"
+)
+
+var completeResult = &report.Result{
+	Message:  "validation error: requests and limits required. Rule autogen-check-for-requests-and-limits failed at path /spec/template/spec/containers/0/resources/requests/",
+	Policy:   "require-requests-and-limits-required",
+	Rule:     "autogen-check-for-requests-and-limits",
+	Priority: report.WarningPriority,
+	Status:   report.Fail,
+	Severity: report.High,
+	Category: "resources",
+	Scored:   true,
+	Resource: &report.Resource{
+		APIVersion: "v1",
+		Kind:       "Deployment",
+		Name:       "nginx",
+		Namespace:  "default",
+		UID:        "536ab69f-1b3c-4bd9-9ba4-274a56188409",
+	},
+}
+
+type testClient struct {
+	err      error
+	callback func(body *bytes.Buffer, key string)
+}
+
+func (c *testClient) Upload(_ *bytes.Buffer, _ string) error {
+	return c.err
+}
+
+var testCallback = func(body *bytes.Buffer, key string) {}
+
+func Test_KinesisTarget(t *testing.T) {
+	t.Run("Send", func(t *testing.T) {
+		callback := func(body *bytes.Buffer, key string) {
+			report := new(bytes.Buffer)
+			if err := json.NewEncoder(report).Encode(completeResult); err != nil {
+				t.Errorf("Failed to encode report message: %s", err)
+			}
+
+			if body != report {
+				buf := new(bytes.Buffer)
+				if _, err := buf.ReadFrom(body); err != nil {
+					t.Errorf("Failed to read from body: %s", err)
+				}
+
+				t.Errorf("Unexpected Body Content: %s", buf.String())
+			}
+		}
+
+		client := kinesis.NewClient("Kinesis", &testClient{nil, callback}, true, &target.Filter{})
+		client.Send(completeResult)
+	})
+	t.Run("Name", func(t *testing.T) {
+		client := kinesis.NewClient("Kinesis", &testClient{nil, testCallback}, false, &target.Filter{})
+
+		if client.Name() != "Kinesis" {
+			t.Errorf("Unexpected Name %s", client.Name())
+		}
+	})
+}

pkg/target/s3/s3.go

@@ -14,7 +14,7 @@ import (
 
 type client struct {
 	target.BaseClient
-	s3client helper.S3Client
+	s3     helper.AWSClient
 	prefix string
 }
 
@@ -27,7 +27,7 @@ func (c *client) Send(result *report.Result) {
 	}
 	key := fmt.Sprintf("%s/%s/%s-%s-%s.json", c.prefix, result.Timestamp.Format("2006-01-02"), result.Policy, result.ID, result.Timestamp.Format(time.RFC3339Nano))
 
-	err := c.s3client.Upload(body, key)
+	err := c.s3.Upload(body, key)
 	if err != nil {
 		log.Printf("[ERROR] %s : S3 Upload error %v \n", c.Name(), err.Error())
 		return
@@ -37,10 +37,10 @@ func (c *client) Send(result *report.Result) {
 }
 
 // NewClient creates a new S3.client to send Results to S3. It doesnt' work right now
-func NewClient(name string, s3client helper.S3Client, prefix string, skipExistingOnStartup bool, filter *target.Filter) target.Client {
+func NewClient(name string, s3 helper.AWSClient, prefix string, skipExistingOnStartup bool, filter *target.Filter) target.Client {
 	return &client{
 		target.NewBaseClient(name, skipExistingOnStartup, filter),
-		s3client,
+		s3,
 		prefix,
 	}
 }