Merge pull request #1650 from fanminshi/doc_cleanup

doc: remove reference to backup/restore

doc/user/resource_labels.md

@@ -1,9 +1,7 @@
 ## Resource Labels
 The etcd-operator creates the following Kubernetes resources for each etcd cluster:
 - Pods for the etcd nodes
-- Services for the etcd client, peer, and (optional) backup service
-- (Optional) Deployment for the backup sidecar, if backup spec is defined
-- (Optional) Persistent Volume Claim, if backup sidecar is enabled with the storage type as PersistentVolume
+- Services for the etcd client and peer
 
 where each resource has the following labels:
 - `app=etcd`

doc/user/spec_examples.md

@@ -42,150 +42,6 @@ spec:
         cpu: 200m
         memory: 100Mi
 ```
-
-### Three members cluster with PV backup
-
-See [example backup spec](../../example/example-etcd-cluster-with-backup.yaml) that uses the [storage class](../../example/example-storage-class-gce-pd.yaml).
-
-### S3 backup and cluster specific S3 configuration
-
-```yaml
-spec:
-  size: 3
-  backup:
-    backupIntervalInSecond: 1800
-    maxBackups: 5
-    storageType: "S3"
-    s3:
-      s3Bucket: <S3-bucket-name>
-      awsSecret: <aws-secret-name>
-      prefix: <S3-prefix>
-```
-
-See [backup config](./backup_config.md) for how to set up S3 related configurations.
-
-### Three members cluster that restores from previous PV backup
-
-If a cluster `cluster-a` was created with backup, but deleted or failed later on,
-we can recover the cluster as long as the PV still exists.
-Note that delete `cluster-a` Cluster resource first if it still exists.
-
-Here's an example:
-
-```yaml
-metadata:
-  name: "cluster-a"
-spec:
-  size: 3
-  backup:
-    backupIntervalInSecond: 300
-    maxBackups: 5
-    storageType: "PersistentVolume"
-    pv:
-      volumeSizeInMB: 512
-  restore:
-    backupClusterName: "cluster-a"
-    storageType: "PersistentVolume"
-```
-
-### Three members cluster that restores from previous S3 backup
-
-Same as above but using "S3" as backup storage. The previous s3 backup must exist 
-in order for the restore to work; otherwise, the new cluster doesn't boot.
-
-```yaml
-metadata:
-  name: "cluster-a"
-spec:
-  size: 3
-  backup:
-    backupIntervalInSecond: 300
-    maxBackups: 5
-    storageType: "S3"
-    s3:
-      s3Bucket: <S3-bucket-name>
-      awsSecret: <aws-secret-name>
-      prefix: <S3-prefix>
-  restore:
-    backupClusterName: "cluster-a"
-    storageType: "S3"
-```
-
-### Three members cluster that restores from different cluster's S3 backup
-
-etcd-operator can create a new cluster `cluster-b` from the backup of another cluster `cluster-a`. If backup exists, make sure the backup policy of `cluster-b` has the same S3 configuration as those of `cluster-a`; etcd operator would also use that config to access snapshots of `cluster-a`.
-
-```yaml
-metadata:
-  name: "cluster-a"
-spec:
-  size: 3
-  backup:
-    backupIntervalInSecond: 300
-    maxBackups: 5
-    storageType: "S3"
-    s3:
-      s3Bucket: <S3-bucket-name>
-      awsSecret: <aws-secret-name>
-      prefix: <S3-prefix>
-```
-
-```yaml
-metadata:
-  name: "cluster-b"
-spec:
-  size: 3
-  backup:
-    backupIntervalInSecond: 300
-    maxBackups: 5
-    storageType: "S3"
-    s3:
-      s3Bucket: <S3-bucket-name>
-      awsSecret: <aws-secret-name>
-      prefix: <S3-prefix>
-  restore:
-    backupClusterName: "cluster-a"
-    storageType: "S3"
-```
-
-
-### Three members cluster that restores from different cluster's PV backup
-
-If user wants to clone a new cluster `cluster-b` from an existing cluster `cluster-a`,
-as long as backup exists, use the following example spec:
-
-```yaml
-metadata:
-  name: "cluster-b"
-spec:
-  size: 3
-  backup:
-    backupIntervalInSecond: 300
-    maxBackups: 5
-    storageType: "PersistentVolume"
-    pv:
-      volumeSizeInMB: 512
-  restore:
-    backupClusterName: "cluster-a"
-    storageType: "PersistentVolume"
-```
-
-## ABS spec examples
-
-### Three member cluster with ABS backup
-
-```yaml
-spec:
-  size: 3
-  backup:
-    backupIntervalInSecond: 1800
-    maxBackups: 5
-    storageType: "ABS"
-    abs:
-      absContainer: <abs-container-name>
-      absSecret: <abs-secret-name>
-```
-
 ### TLS
 
 See [cluster TLS docs](./cluster_tls.md).