Co-authored-by: Renovate Bot <bot@renovateapp.com>

* Add SAML support

* move extAuth below essential components

* Add CAS, PAM, LDAP support

* Add WEB_DOMAIN and S3_ALIAS_HOST support

* SAML defaults aligned

* Bump chart version

* SSO & WEB_DOMAIN support added

* Add OIDC support

* Correct typo

* Notice for OIDC support

Co-authored-by: Eugen Rochko <eugen@zeonfederated.com>

Co-authored-by: Renovate Bot <bot@renovateapp.com>

Co-authored-by: Renovate Bot <bot@renovateapp.com>

Co-authored-by: Renovate Bot <bot@renovateapp.com>

https://github.com/mastodon/mastodon/pull/10857

- move application variables under `mastodon` namespace
- restore standard yaml structure for ingress configuration
- move values.yaml.template to values.yaml

* add Helm chart

known issues/future work:

- SSO is unsupported

- S3/Minio/GCS is unsupported

- Swift is unsupported

- WEB_DOMAIN is unsupported

- Tor is unsupported

* helm: clarify how LOCAL_DOMAIN is set

* helm: add chart description

* helm: make DB_POOL and Sidekiq concurrency configurable

* helm: only enforce pod affinity when using ReadWriteOnce

* helm: clarify compatibility

* helm: clean up application variables

* helm: add job to create initial admin