Add local environment that uses alpha configuration

contrib/local-environment/Makefile

@@ -6,6 +6,14 @@ up:
 %:
 	docker-compose $*
 
+.PHONY: alpha-config-up
+alpha-config-up:
+	docker-compose -f docker-compose.yaml -f docker-compose-alpha-config.yaml up -d
+
+.PHONY: alpha-config-%
+alpha-config-%:
+	docker-compose -f docker-compose.yaml -f docker-compose-nginx.yaml $*
+
 .PHONY: nginx-up
 nginx-up:
 	docker-compose -f docker-compose.yaml -f docker-compose-nginx.yaml up -d

contrib/local-environment/docker-compose-alpha-config.yaml

@@ -0,0 +1,19 @@
+# This docker-compose file can be used to bring up an example instance of oauth2-proxy
+# for manual testing and exploration of features.
+# Alongside OAuth2-Proxy, this file also starts Dex to act as the identity provider,
+# etcd for storage for Dex  and HTTPBin as an example upstream.
+# This file also uses alpha configuration when configuring OAuth2 Proxy.
+#
+# This file is an extension of the main compose file and must be used with it
+#    docker-compose -f docker-compose.yaml -f docker-compose-alpha-config.yaml <command>
+# Alternatively:
+#    make alpha-config-<command> (eg make nginx-up, make nginx-down)
+#
+# Access http://localhost:4180 to initiate a login cycle
+version: '3.0'
+services:
+  oauth2-proxy:
+    command: --config /oauth2-proxy.cfg --alpha-config /oauth2-proxy-alpha-config.yaml
+    volumes:
+      - "./oauth2-proxy-alpha-config.cfg:/oauth2-proxy.cfg"
+      - "./oauth2-proxy-alpha-config.yaml:/oauth2-proxy-alpha-config.yaml"

contrib/local-environment/oauth2-proxy-alpha-config.cfg

@@ -0,0 +1,10 @@
+http_address="0.0.0.0:4180"
+cookie_secret="OQINaROshtE9TcZkNAm-5Zs2Pv3xaWytBmc5W7sPX7w="
+provider="oidc"
+email_domains="example.com"
+oidc_issuer_url="http://dex.localhost:4190/dex"
+client_secret="b2F1dGgyLXByb3h5LWNsaWVudC1zZWNyZXQK"
+client_id="oauth2-proxy"
+cookie_secure="false"
+
+redirect_url="http://localhost:4180/oauth2/callback"

contrib/local-environment/oauth2-proxy-alpha-config.yaml

@@ -0,0 +1,17 @@
+upstreams:
+  - id: httpbin
+    path: /
+    uri: http://httpbin
+injectRequestHeaders:
+- name: X-Forwarded-Groups
+  values:
+  - claim: groups
+- name: X-Forwarded-User
+  values:
+  -   claim: user
+- name: X-Forwarded-Email
+  values:
+  - claim: email
+- name: X-Forwarded-Preferred-Username
+  values:
+  - claim: preferred_username