auth-proxy: proxies only authenticated requests to upstream, redirects to login page otherwise (#103)

* auth-proxy: inspects authenticated user

* ingress: chart and use in rpuppy

* auth-proxy: make it optional in rpuppy

* kratos: whitelist env pub/priv domains for auth return_to addr

* url-shortener: put behind auth-proxy

* pihole: replace oauth2-client with auth-proxy

* auth-proxy: fix upstream uri generation

* pihole: remove old chart using oauth2

* auth-proxy: remove temporary values file

* url-shortener: check x-user header for authentication

* auth: fix allowed_return_urls list

* auth-proxy: fix current address generation logic

---------

Co-authored-by: Giorgi Lekveishvili <lekva@gl-mbp-m1-max.local>
diff --git a/charts/auth-proxy/values.yaml b/charts/auth-proxy/values.yaml
new file mode 100644
index 0000000..9f61b34
--- /dev/null
+++ b/charts/auth-proxy/values.yaml
@@ -0,0 +1,8 @@
+image:
+  repository: giolekva/auth-proxy
+  tag: latest
+  pullPolicy: Always
+upstream: bar.svc.cluster.local
+whoAmIAddr: https://accounts.example.com/sessions/whoami
+loginAddr: https://accounts-ui.example.com/login
+portName: http