Allow additional variables for rewrites

- as target: client.identity
- as source:
  - client.identity
  - client.ip
  - server.hostname
  - server.identity
  - server.ip
  - remote.ip
  - local.endpoint
  - local.ip
  - local.socket

charts/viking-controller/crds/varnishcfg-crd.yaml

@@ -283,10 +283,10 @@ spec:
                   properties:
                     target:
                       type: string
-                      pattern: "^(be)?(req\\.url|re(q|sp)\\.http\\.[a-zA-Z0-9!#$%&'*+.^_`|~-]+)$"
+                      pattern: "^(client\\.identity|(be)?(req\\.url|re(q|sp)\\.http\\.[a-zA-Z0-9!#$%&'*+.^_`|~-]+))$"
                     source:
                       type: string
-                      pattern: "^(be)?(req\\.url|re(q|sp)\\.http\\.[a-zA-Z0-9!#$%&'*+.^_`|~-]+)$"
+                      pattern: "^(client\\.(identity|ip)|server\\.(hostname|identity|ip)|remote\\.ip|local\\.(endpoint|ip|socket)|(be)?(req\\.url|re(q|sp)\\.http\\.[a-zA-Z0-9!#$%&'*+.^_`|~-]+))$"
                     method:
                       type: string
                       enum: