Separate out watcher and web-apps in mobymask-v2 stack (#287)

* Separate out watcher and web-apps in mobymask stack

* Take L2 RPC endpoint from the env file

* Changes to run watcher and mobymask web-app separately

* Support running watcher without contract deployment and L2 txs

* Remove duplicate mobymask params env

* Add code comments

* Add instructions for running web-apps separately

* Self review fixes

* Fix timeout for mobymask-app on watcher server

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Co-authored-by: prathamesh0 <prathamesh.musale0@gmail.com>
Former-commit-id: 6f781ae303

app/data/compose/docker-compose-peer-test-app.yml

@@ -0,0 +1,21 @@
+version: '3.2'
+
+services:
+  peer-test-app:
+    # Builds and serves the peer-test react-app
+    image: cerc/react-peer:local
+    working_dir: /app/packages/test-app
+    env_file:
+      - ../config/watcher-mobymask-v2/mobymask-params.env
+    command: ["sh", "./test-app-start.sh"]
+    volumes:
+      - ../config/watcher-mobymask-v2/test-app-config.json:/app/packages/test-app/src/test-app-config.json
+      - ../config/watcher-mobymask-v2/test-app-start.sh:/app/packages/test-app/test-app-start.sh
+    ports:
+      - "0.0.0.0:3003:3000"
+    healthcheck:
+      test: ["CMD", "nc", "-v", "localhost", "3000"]
+      interval: 20s
+      timeout: 5s
+      retries: 15
+      start_period: 10s