FIX: Permissions To s3 And MediaConvert]

cms/main.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"log"
 	"net/http"
+	"os"
 	"thamanyah/cms/v2/internal/handlers"
 	"thamanyah/cms/v2/internal/services"
 
@@ -21,7 +22,7 @@ func main() {
 
 	concreteS3Client := &services.S3Concrete{
 		S3Client: s3.NewFromConfig(config),
-		Bucket:   "",
+		Bucket:   os.Getenv("S3_BUCKET"),
 	}
 
 	concreteS3Client.AssertSuccessfulConnection(context.Background())
@@ -30,9 +31,9 @@ func main() {
 
 	services.MediaConvertClient = &services.MediaConvertConcrete{
 		MediaConvertClient: mediaconvert.NewFromConfig(config),
-		Role:               "test",
+		Role:               os.Getenv("MEDIACONVERT_ROLE_ARN"),
-		InputBucket:        "",
+		InputBucket:        os.Getenv("MEDIACONVERT_INPUT_BUCKET"),
-		OutputBucket:       "",
+		OutputBucket:       os.Getenv("MEDIACONVERT_OUTPUT_BUCKET"),
 	}
 
 	mux := http.NewServeMux()

infrastructure/main.go

@@ -80,17 +80,29 @@ func newServiceDatabase(ctx *pulumi.Context, provider *postgresql.Provider, serv
 	return password, nil
 }
 
+// envVar is a name/value pair for a container's extra environment variables,
+// where the value is only known after other resources are provisioned.
+type envVar struct {
+	Name  string
+	Value pulumi.StringOutput
+}
+
 // deployFargateService gives a service its own ECR repo, log group, task
 // definition, ECS service, and its own ALB — so it gets its own DNS name
 // rather than sharing one load balancer with the other service on a
 // different port. The service's DB password is stored in Secrets Manager and
 // injected into the container as a secret rather than a plaintext env var.
+// taskRole is optional (nil means no TaskRoleArn is set, i.e. the container
+// gets no AWS identity of its own beyond execRole's pull/logs permissions);
+// extraEnv is appended to the container's environment on top of the DB_* vars.
 func deployFargateService(
 	ctx *pulumi.Context,
 	name string,
 	containerPort int,
 	cluster *ecs.Cluster,
 	execRole *iam.Role,
+	taskRole *iam.Role,
+	extraEnv []envVar,
 	vpcID string,
 	subnetIDs []string,
 	albSecurityGroup *ec2.SecurityGroup,
@@ -194,7 +206,12 @@ func deployFargateService(
 		return nil, nil, nil, err
 	}
 
-	containerDefinitions := pulumi.All(repo.RepositoryUrl, logGroup.Name, secret.Arn, dbAddress, dbPort).ApplyT(
+	baseArgs := []any{repo.RepositoryUrl, logGroup.Name, secret.Arn, dbAddress, dbPort}
+	for _, ev := range extraEnv {
+		baseArgs = append(baseArgs, ev.Value)
+	}
+
+	containerDefinitions := pulumi.All(baseArgs...).ApplyT(
 		func(args []any) (string, error) {
 			image := args[0].(string) + ":latest"
 			logGroupName := args[1].(string)
@@ -202,6 +219,16 @@ func deployFargateService(
 			dbHost := args[3].(string)
 			dbPort := args[4].(int)
 
+			environment := []map[string]string{
+				{"name": "DB_HOST", "value": dbHost},
+				{"name": "DB_PORT", "value": fmt.Sprintf("%d", dbPort)},
+				{"name": "DB_NAME", "value": name},
+				{"name": "DB_USER", "value": name},
+			}
+			for i, ev := range extraEnv {
+				environment = append(environment, map[string]string{"name": ev.Name, "value": args[5+i].(string)})
+			}
+
 			def := []map[string]any{
 				{
 					"name":  name,
@@ -209,12 +236,7 @@ func deployFargateService(
 					"portMappings": []map[string]any{
 						{"containerPort": containerPort, "protocol": "tcp"},
 					},
-					"environment": []map[string]string{
+					"environment": environment,
-						{"name": "DB_HOST", "value": dbHost},
-						{"name": "DB_PORT", "value": fmt.Sprintf("%d", dbPort)},
-						{"name": "DB_NAME", "value": name},
-						{"name": "DB_USER", "value": name},
-					},
 					"secrets": []map[string]string{
 						{"name": "DB_PASSWORD", "valueFrom": secretArn},
 					},
@@ -233,7 +255,7 @@ func deployFargateService(
 		},
 	).(pulumi.StringOutput)
 
-	taskDefinition, err := ecs.NewTaskDefinition(ctx, name+"-task", &ecs.TaskDefinitionArgs{
+	taskDefinitionArgs := &ecs.TaskDefinitionArgs{
 		Family:                  pulumi.String(name),
 		Cpu:                     pulumi.String("256"),
 		Memory:                  pulumi.String("512"),
@@ -241,7 +263,12 @@ func deployFargateService(
 		RequiresCompatibilities: pulumi.StringArray{pulumi.String("FARGATE")},
 		ExecutionRoleArn:        execRole.Arn,
 		ContainerDefinitions:    containerDefinitions,
-	})
+	}
+	if taskRole != nil {
+		taskDefinitionArgs.TaskRoleArn = taskRole.Arn
+	}
+
+	taskDefinition, err := ecs.NewTaskDefinition(ctx, name+"-task", taskDefinitionArgs)
 	if err != nil {
 		return nil, nil, nil, err
 	}
@@ -579,15 +606,168 @@ func main() {
 			return err
 		}
 
+		// Private bucket for raw video uploads (pre-transcode). Kept separate
+		// from encoded-bucket, which is fronted by CloudFront/OAC for public
+		// delivery of finished renditions — raw source video must not be
+		// reachable through that CDN.
+		rawUploadsBucket, err := s3.NewBucket(ctx, "raw-uploads-bucket", nil)
+		if err != nil {
+			return err
+		}
+
+		_, err = s3.NewBucketPublicAccessBlock(ctx, "raw-uploads-bucket-public-access-block", &s3.BucketPublicAccessBlockArgs{
+			Bucket:                rawUploadsBucket.ID(),
+			BlockPublicAcls:       pulumi.Bool(true),
+			BlockPublicPolicy:     pulumi.Bool(true),
+			IgnorePublicAcls:      pulumi.Bool(true),
+			RestrictPublicBuckets: pulumi.Bool(true),
+		})
+		if err != nil {
+			return err
+		}
+
+		// Role MediaConvert itself assumes (passed as CreateJobInput.Role by
+		// the cms service) to read the raw upload and write the encoded
+		// output — distinct from the ECS task role below.
+		mediaConvertAssumePolicy, err := json.Marshal(map[string]any{
+			"Version": "2012-10-17",
+			"Statement": []map[string]any{
+				{
+					"Effect":    "Allow",
+					"Action":    "sts:AssumeRole",
+					"Principal": map[string]string{"Service": "mediaconvert.amazonaws.com"},
+				},
+			},
+		})
+		if err != nil {
+			return err
+		}
+
+		mediaConvertRole, err := iam.NewRole(ctx, "mediaconvert-service-role", &iam.RoleArgs{
+			AssumeRolePolicy: pulumi.String(mediaConvertAssumePolicy),
+		})
+		if err != nil {
+			return err
+		}
+
+		mediaConvertS3Policy := pulumi.All(rawUploadsBucket.Arn, bucket.Arn).ApplyT(
+			func(args []any) (string, error) {
+				rawUploadsArn := args[0].(string)
+				encodedBucketArn := args[1].(string)
+
+				doc := map[string]any{
+					"Version": "2012-10-17",
+					"Statement": []map[string]any{
+						{
+							"Sid":      "ReadRawUploads",
+							"Effect":   "Allow",
+							"Action":   "s3:GetObject",
+							"Resource": rawUploadsArn + "/*",
+						},
+						{
+							"Sid":      "WriteEncodedOutput",
+							"Effect":   "Allow",
+							"Action":   "s3:PutObject",
+							"Resource": encodedBucketArn + "/*",
+						},
+					},
+				}
+				b, err := json.Marshal(doc)
+				return string(b), err
+			},
+		).(pulumi.StringOutput)
+
+		_, err = iam.NewRolePolicy(ctx, "mediaconvert-s3-access", &iam.RolePolicyArgs{
+			Role:   mediaConvertRole.ID(),
+			Policy: mediaConvertS3Policy,
+		})
+		if err != nil {
+			return err
+		}
+
+		// cms's own ECS task role (distinct from the shared execRole, which
+		// is only for the ECS agent's pull/logs/secrets access): lets the
+		// running container call S3 and MediaConvert directly. discovery
+		// gets none of this since it never touches either API.
+		cmsTaskRole, err := iam.NewRole(ctx, "cms-task-role", &iam.RoleArgs{
+			AssumeRolePolicy: pulumi.String(execRoleAssumePolicy),
+		})
+		if err != nil {
+			return err
+		}
+
+		cmsTaskPolicy := pulumi.All(rawUploadsBucket.Arn, mediaConvertRole.Arn).ApplyT(
+			func(args []any) (string, error) {
+				rawUploadsArn := args[0].(string)
+				mediaConvertRoleArn := args[1].(string)
+
+				doc := map[string]any{
+					"Version": "2012-10-17",
+					"Statement": []map[string]any{
+						{
+							"Sid":      "ListRawUploadsBucket",
+							"Effect":   "Allow",
+							"Action":   "s3:ListBucket",
+							"Resource": rawUploadsArn,
+						},
+						{
+							"Sid":    "RawUploadsObjectAccess",
+							"Effect": "Allow",
+							"Action": []string{
+								"s3:PutObject",
+								"s3:GetObject",
+							},
+							"Resource": rawUploadsArn + "/*",
+						},
+						{
+							"Sid":      "CreateTranscodeJob",
+							"Effect":   "Allow",
+							"Action":   "mediaconvert:CreateJob",
+							"Resource": "*",
+						},
+						{
+							"Sid":      "PassMediaConvertRole",
+							"Effect":   "Allow",
+							"Action":   "iam:PassRole",
+							"Resource": mediaConvertRoleArn,
+							"Condition": map[string]any{
+								"StringEquals": map[string]string{
+									"iam:PassedToService": "mediaconvert.amazonaws.com",
+								},
+							},
+						},
+					},
+				}
+				b, err := json.Marshal(doc)
+				return string(b), err
+			},
+		).(pulumi.StringOutput)
+
+		_, err = iam.NewRolePolicy(ctx, "cms-task-role-policy", &iam.RolePolicyArgs{
+			Role:   cmsTaskRole.ID(),
+			Policy: cmsTaskPolicy,
+		})
+		if err != nil {
+			return err
+		}
+
+		cmsExtraEnv := []envVar{
+			{Name: "AWS_REGION", Value: pulumi.String(awsRegion).ToStringOutput()},
+			{Name: "S3_BUCKET", Value: rawUploadsBucket.ID().ToStringOutput()},
+			{Name: "MEDIACONVERT_INPUT_BUCKET", Value: rawUploadsBucket.ID().ToStringOutput()},
+			{Name: "MEDIACONVERT_OUTPUT_BUCKET", Value: bucket.ID().ToStringOutput()},
+			{Name: "MEDIACONVERT_ROLE_ARN", Value: mediaConvertRole.Arn},
+		}
+
 		cmsRepo, cmsService, cmsAlb, err := deployFargateService(ctx, "cms", 8081,
-			cluster, execRole, vpc.Id, subnets.Ids, albSecurityGroup, serviceSecurityGroup,
+			cluster, execRole, cmsTaskRole, cmsExtraEnv, vpc.Id, subnets.Ids, albSecurityGroup, serviceSecurityGroup,
 			db.Address, db.Port, cmsPassword)
 		if err != nil {
 			return err
 		}
 
 		discoveryRepo, discoveryService, discoveryAlb, err := deployFargateService(ctx, "discovery", 8080,
-			cluster, execRole, vpc.Id, subnets.Ids, albSecurityGroup, serviceSecurityGroup,
+			cluster, execRole, nil, nil, vpc.Id, subnets.Ids, albSecurityGroup, serviceSecurityGroup,
 			db.Address, db.Port, discoveryPassword)
 		if err != nil {
 			return err