Fixing version range handling from strings to semver (#4598)

* Fixing version range handling from strings to semver

See #3002 for more detail

* Include pre-releases in the semver ranges

This is important when testing against alpha and beta builds of
Kubernetes along with environments that use pre-releases to denote
things other than pre-releases (e.g., gke denotes the environment
with a pre-releases)

stable/datadog/Chart.yaml

@@ -1,5 +1,5 @@
 name: datadog
-version: 0.11.0
+version: 0.11.1
 appVersion: 6.0.0
 description: DataDog Agent
 keywords:

stable/datadog/templates/_helpers.tpl

@@ -43,7 +43,7 @@ We truncate at 63 chars because some Kubernetes name fields are limited to this
 Return the appropriate apiVersion for RBAC APIs.
 */}}
 {{- define "rbac.apiVersion" -}}
-{{- if ge .Capabilities.KubeVersion.Minor "8" -}}
+{{- if semverCompare "^1.8-0" .Capabilities.KubeVersion.GitVersion -}}
 "rbac.authorization.k8s.io/v1"
 {{- else -}}
 "rbac.authorization.k8s.io/v1beta1"

stable/datadog/templates/daemonset.yaml

@@ -89,7 +89,7 @@ spec:
             value: docker
           - name: KUBERNETES
             value: "yes"
-          {{- if (semverCompare ">=1" .Capabilities.KubeVersion.Major) and (semverCompare ">=7" .Capabilities.KubeVersion.Minor) }}
+          {{- if semverCompare "^1.7-0" .Capabilities.KubeVersion.GitVersion }}
           - name: DD_KUBERNETES_KUBELET_HOST
             valueFrom:
               fieldRef: