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Update port-forward-access-application-cluster.md 

Add documentation about the simplified port mapping notation
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Charle Demers 2020-12-03 14:30:43 -05:00 committed by GitHub
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@ -158,8 +158,8 @@ for database debugging.
Any of the above commands works. The output is similar to this:
```
I0710 14:43:38.274550 3655 portforward.go:225] Forwarding from 127.0.0.1:7000 -> 6379
I0710 14:43:38.274797 3655 portforward.go:225] Forwarding from [::1]:7000 -> 6379
Forwarding from 127.0.0.1:7000 -> 6379
Forwarding from [::1]:7000 -> 6379
```
2. Start the Redis command line interface:
@ -180,7 +180,23 @@ for database debugging.
PONG
```
### Optionaly let _kubectl_ choose the local port
If you don't need a specific local port, you can let `kubectl` choose and allocate
the local port and thus relieve you from having to manage local port conflicts, with
the slightly simpler syntax:
```shell
kubectl port-forward deployment/redis-master :6379
```
An allocated local port in the upper range will be displayed as a result, the output
will be similar to this:
```
Forwarding from 127.0.0.1:62162 -> 6379
Forwarding from [::1]:62162 -> 6379
```
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