Use $QUAYPATH and $QUAYDIR in conf and init files

conf/jwtproxy_conf.yaml.jnj

@@ -2,8 +2,8 @@ jwtproxy:
   signer_proxy:
     enabled: true
     listen_addr: :8080
-    ca_key_file: /conf/mitm.key
-    ca_crt_file: /conf/mitm.cert
+    ca_key_file: {{ conf_dir }}/mitm.key
+    ca_crt_file: {{ conf_dir }}/mitm.cert
 
     signer:
       issuer: quay
@@ -13,7 +13,7 @@ jwtproxy:
         type: preshared
         options:
           key_id: {{ key_id }}
-          private_key_path: /conf/quay.pem
+          private_key_path: {{ conf_dir }}/quay.pem
   verifier_proxies:
   - enabled: true
     listen_addr: unix:/tmp/jwtproxy_secscan.sock