Add instructions to run MobyMask app with a watcher on network (#368)

* Remove unnecessary check on watcher endpoint

* Add instructions to run MobyMask app with a watcher on network

* Move watcher on network docs to a separate folder

* Add nginx config for watcher endpoint

* Add expected output logs

* Add sample nginx config for hosting the app

* Update instructions

Former-commit-id: 018950858b1607e08185d65588047718039db959

app/data/config/watcher-mobymask-v2/mobymask-app-start.sh

@@ -17,9 +17,13 @@ fi
 
 echo "Using CERC_RELAY_NODES $CERC_RELAY_NODES"
 
-# Use config from mounted volume if available (when running web-app along with watcher stack)
-if [ -f /server/config.json ]; then
+if [ -z "$CERC_DEPLOYED_CONTRACT" ]; then
+  # Use config from mounted volume (when running web-app along with watcher stack)
   echo "Taking config for deployed contract from mounted volume"
+  while [ ! -f /server/config.json ]; do
+    echo "Config not found, retrying after 5 seconds"
+    sleep 5
+  done
 
   # Get deployed contract address and chain id
   CERC_DEPLOYED_CONTRACT=$(jq -r '.address' /server/config.json | tr -d '"')

app/data/config/watcher-mobymask-v2/mobymask-params.env

@@ -1,8 +1,6 @@
 # Defaults
 
 # Watcher endpoint
-DEFAULT_CERC_WATCHER_HOST="mobymask-watcher-server"
-DEFAULT_CERC_WATCHER_PORT=3001
 DEFAULT_CERC_APP_WATCHER_URL="http://localhost:3001"
 
 # Set of relay peers to connect to from the relay node