init gateway-service

services/gateway-service/README.md

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+# Gateway Service
+
+## Configuration
+
+### Environment Variables
+
+**RPC Service Addresses:**
+
+``PANEL_SVC_ADDR`` (Required)
+
+* e.g. "panel-service:9090"
+
+``POST_SVC_ADDR`` (Required)
+
+* e.g. "post-service:9090"
+
+``USER_SVC_ADDR`` (Required)
+
+* e.g. "user-service:9090"
+
+``AUTH_SVC_ADDR`` (Required)
+
+* e.g. "auth-service:9090"
+
+``COMMENT_SVC_ADDR`` (Required)
+
+* e.g. "comment-service:9090"
+
+**Auth:**
+
+``JWT_PUBLIC_KEY`` (Required)
+
+* RSA Public Key encoded in base64 (used to verify JWT tokens created by the ``auth-service``)