Fix helm 3 crds installation + add some docs (#282)

* Add crds in helm directory (casskop & multicasskop)

* Delete old beta crds

* Update doc

* Fix helm install CRD override

* Remove useless namespace option in doc

* Remove useless namespace option in doc (multi casskop)

* Fix backup & restore doc example

* Update and add spec of Backup & restore documentation

* Remove old helm 2 docs refs

* set cassandraCluster (with uppercase) in CRDs and definitions

* update CRD

* Fix tests

* Log secret validation error

* Update test with new typo

* FIX undo some wrong typo changes

* Fix test

* Update website/docs/2_setup/1_getting_started.md

Co-authored-by: Cyril Scetbon <[email protected]>

* Test local helm chart using Kutll

* Fix helm installation

* Fix path

* Update path

Co-authored-by: Cyril Scetbon <[email protected]>

deploy/crds/db.orange.com_cassandrabackups_crd.yaml

@@ -35,7 +35,7 @@ spec:
                   to the cloud. Format supported is \d+[KMG] case insensitive. You
                   can use values like 10M (meaning 10MB), 1024, 1024K, 2G, etc...
                 type: string
-              cassandracluster:
+              cassandraCluster:
                 description: Name of the CassandraCluster to backup
                 type: string
               concurrentConnections:
@@ -79,7 +79,7 @@ spec:
                 description: URI for the backup target location e.g. s3 bucket, filepath
                 type: string
             required:
-            - cassandracluster
+            - cassandraCluster
             - datacenter
             - snapshotTag
             - storageLocation