feat (operator): add support for IRSA (aws resources access) (#3128)

* fix data to POSIX and sed working on macos
* add ServiceAccountGetter to the newFakeK8sAnnotationsClient for unit tests
* try to update the service account
* use irsa_role_arn since we need the full arn, and remove enable_irsa
* move sa sync code to existing sync.go file to be all together
* change all Irsa to IRSA to follow go idiomatic that capitalize initialisms or acronyms
* using Update instead of Patch for the service account syn
* document the new option and add the key in the values/configs
* add the new option to the administrator docs
* trying to increase the timeout for the flaky test after sync

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Co-authored-by: Felix Kunde <felix-kunde@gmx.de>

pkg/util/config/config.go

@@ -194,6 +194,7 @@ type Config struct {
 	WALES3Bucket                             string            `name:"wal_s3_bucket"`
 	LogS3Bucket                              string            `name:"log_s3_bucket"`
 	KubeIAMRole                              string            `name:"kube_iam_role"`
+	IRSARoleARN                              string            `name:"irsa_role_arn"`
 	WALGSBucket                              string            `name:"wal_gs_bucket"`
 	GCPCredentials                           string            `name:"gcp_credentials"`
 	WALAZStorageAccount                      string            `name:"wal_az_storage_account"`

pkg/util/constants/annotations.go

@@ -4,6 +4,7 @@ package constants
 const (
 	ZalandoDNSNameAnnotation           = "external-dns.alpha.kubernetes.io/hostname"
 	KubeIAmAnnotation                  = "iam.amazonaws.com/role"
+	IRSAAnnotation                     = "eks.amazonaws.com/role-arn"
 	VolumeStorateProvisionerAnnotation = "pv.kubernetes.io/provisioned-by"
 	PostgresqlControllerAnnotationKey  = "acid.zalan.do/controller"
 )