read keys from foundry config and write to shared file

docker-compose.yml

@@ -21,11 +21,14 @@ services:
         --port=8545
         --host=0.0.0.0
         --chain-id=1337
-        --accounts=1
+        --accounts=${NUM_NWAKU_NODES:-5}
         --allow-origin=*
         --block-time=12
         --silent
         --config-out=anvil-config.txt
+    volumes:
+      - privatekeys-volume:/shared
+      - ./getPrivateKeys.sh:/getPrivateKeys.sh
     networks:
       - simulation
 
@@ -216,4 +219,7 @@ services:
       - redis
       - foundry
     networks:
-      - simulation
+      - simulation
+
+volumes:
+  privatekeys-volume:

getPrivateKeys.sh

@@ -0,0 +1,15 @@
+#!/bin/sh
+
+# Install json parser
+apk update
+apk add jq
+
+# Read the JSON file
+json_content=$(cat anvil-config.txt)
+
+# Extract private_keys array values using jq
+private_keys=$(echo "$json_content" | jq -r '.private_keys[]')
+
+# Write private keys to a new file for easier access
+echo "Writing private keys to file"
+echo "$private_keys" > /shared/private-keys.txt