Upgrading the TLS certificate

Obtain the new certificate chain from your certificate authority (CA) in PEM format.

Hereinafter, the term certificate.pem will be used to denote either a single PEM certificate or the full certificate chain.

Copy the certificate.pem file onto a Linux computer and execute the command:
```
cat certificate.pem | base64 -w0 > certificate.base64
```
Use the contents of the newly created certificate.base64 file to replace the old value of the key crtFullChain in your values.yaml.
```
global:
  ...
  cert:
    crtFullChain: "<replace here>"
    key: "<CERT-KEY-BASE64>" # <- do NOT change!
```
Redeploy with the updated values.yaml.
Check the result in your web browser

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