Lazy upgrade of the Spilo image (#859)

* initial implementation

* describe forcing the rolling upgrade

* make parameter name more descriptive

* add missing pieces

* address review

* address review

* fix bug in e2e tests

* fix cluster name label in e2e test

* raise test timeout

* load spilo test image

* use available spilo image

* delete replica pod for lazy update test

* fix e2e

* fix e2e with a vengeance

* lets wait for another 30m

* print pod name in error msg

* print pod name in error msg 2

* raise timeout, comment other tests

* subsequent updates of config

* add comma

* fix e2e test

* run unit tests before e2e

* remove conflicting dependency

* Revert "remove conflicting dependency"

This reverts commit 65fc09054b.

* improve cdp build

* dont run unit before e2e tests

* Revert "improve cdp build"

This reverts commit e2a8fa12aa.

Co-authored-by: Sergey Dudoladov <sergey.dudoladov@zalando.de>
Co-authored-by: Felix Kunde <felix-kunde@gmx.de>

pkg/apis/acid.zalan.do/v1/crds.go

@@ -761,6 +761,9 @@ var OperatorConfigCRDResourceValidation = apiextv1beta1.CustomResourceValidation
 					"enable_crd_validation": {
 						Type: "boolean",
 					},
+					"enable_lazy_spilo_upgrade": {
+						Type: "boolean",
+					},
 					"enable_shm_volume": {
 						Type: "boolean",
 					},

pkg/apis/acid.zalan.do/v1/operator_configuration_type.go

@@ -183,6 +183,7 @@ type OperatorLogicalBackupConfiguration struct {
 // OperatorConfigurationData defines the operation config
 type OperatorConfigurationData struct {
 	EnableCRDValidation     *bool    `json:"enable_crd_validation,omitempty"`
+	EnableLazySpiloUpgrade  bool     `json:"enable_lazy_spilo_upgrade,omitempty"`
 	EtcdHost                string   `json:"etcd_host,omitempty"`
 	KubernetesUseConfigMaps bool     `json:"kubernetes_use_configmaps,omitempty"`
 	DockerImage             string   `json:"docker_image,omitempty"`