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**What happened**:
I'm getting this error while trying to deploy ingress-nginx 
`Service "<some_prfix>-<cluster_name>-ingress-nginx-controller-admission" is invalid: metadata.name: Invalid value: "<some_prfix>-<cluster_name>-ingress-nginx-controller-admission": must be no more than 63 characters`

**What you expected to happen**:
The name should be truncated on the 63-char 

seems like this part is not working for some reason 
https://github.com/kubernetes/ingress-nginx/blob/51847ac1b537c547cdb7bfb06d14e6d3d8476a73/charts/ingress-nginx/templates/_helpers.tpl#L99-L101


Chart: Admission controller name too long
This is a GitHub Issue
repo:ingress-nginx
owner:kubernetes
Title : Chart: Admission controller name too long
Issue date:

--- start body ---
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blocks.  If they're super-long, please use the details tag like
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IMPORTANT!!!

Please complete the next sections or the issue will be closed.
This questions are the first thing we need to know to understand the context.

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**What happened**:
I'm getting this error while trying to deploy ingress-nginx 
`Service "<some_prfix>-<cluster_name>-ingress-nginx-controller-admission" is invalid: metadata.name: Invalid value: "<some_prfix>-<cluster_name>-ingress-nginx-controller-admission": must be no more than 63 characters`

**What you expected to happen**:
The name should be truncated on the 63-char 

seems like this part is not working for some reason 
https://github.com/kubernetes/ingress-nginx/blob/51847ac1b537c547cdb7bfb06d14e6d3d8476a73/charts/ingress-nginx/templates/_helpers.tpl#L99-L101


--- end body ---

None