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>

go.mod

@@ -4,16 +4,20 @@ go 1.14
 
 require (
 	github.com/aws/aws-sdk-go v1.29.33
+	github.com/emicklei/go-restful v2.9.6+incompatible // indirect
+	github.com/evanphx/json-patch v4.5.0+incompatible // indirect
+	github.com/googleapis/gnostic v0.3.0 // indirect
 	github.com/lib/pq v1.3.0
 	github.com/motomux/pretty v0.0.0-20161209205251-b2aad2c9a95d
 	github.com/r3labs/diff v0.0.0-20191120142937-b4ed99a31f5a
 	github.com/sirupsen/logrus v1.5.0
 	github.com/stretchr/testify v1.4.0
-	golang.org/x/tools v0.0.0-20200326210457-5d86d385bf88 // indirect
+	golang.org/x/tools v0.0.0-20200426102838-f3a5411a4c3b // indirect
 	gopkg.in/yaml.v2 v2.2.8
-	k8s.io/api v0.18.0
-	k8s.io/apiextensions-apiserver v0.18.0
-	k8s.io/apimachinery v0.18.0
-	k8s.io/client-go v0.18.0
-	k8s.io/code-generator v0.18.0
+	k8s.io/api v0.18.2
+	k8s.io/apiextensions-apiserver v0.18.2
+	k8s.io/apimachinery v0.18.2
+	k8s.io/client-go v11.0.0+incompatible
+	k8s.io/code-generator v0.18.2
+	sigs.k8s.io/kind v0.5.1 // indirect
 )