diff --git a/docker-compose.yml b/docker-compose.yml
index 60aa637..4f5f4d9 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -25,10 +25,9 @@ services:
         --allow-origin=*
         --block-time=12
         --silent
-        --config-out=anvil-config.txt
+        --config-out=/shared/anvil-config.txt
     volumes:
       - privatekeys-volume:/shared
-      - ./getPrivateKeys.sh:/getPrivateKeys.sh
     networks:
       - simulation
 
diff --git a/getPrivateKeys.sh b/getPrivateKeys.sh
deleted file mode 100644
index 3e2576c..0000000
--- a/getPrivateKeys.sh
+++ /dev/null
@@ -1,15 +0,0 @@
-#!/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 "$json_content" | jq -r '.private_keys[]')
-
-# Write private keys to a new file for easier indexing
-echo "Writing private keys to file"
-echo "$private_keys" > /shared/private-keys.txt
\ No newline at end of file
diff --git a/run_nwaku.sh b/run_nwaku.sh
index d15bba4..05114be 100755
--- a/run_nwaku.sh
+++ b/run_nwaku.sh
@@ -1,7 +1,8 @@
-#!/bin/sh
+#!/bin/bash
 
-# Install bind-tools package used for domainname resolution
+# Install bind-tools package used for domainname resolution and jq for json parsing
 apk add bind-tools
+apk add jq
 
 if test -f .env; then
   echo "Using .env file"  
@@ -38,6 +39,12 @@ fi
 #Function to get the index of the container and use it to retrieve a private key to be used to generate the keystore
 get_private_key(){
 
+  # Read the JSON file
+  json_content=$(cat /shared/anvil-config.txt)
+
+  # Extract private_keys json array using jq
+  private_keys=$(echo "$json_content" | jq -r '.private_keys[]')
+
   # get the service specified in the docker-compose.yml 
   # by a reverse DNS lookup on the IP
   SERVICE=`dig -x $IP +short | cut -d'_' -f2`
@@ -49,9 +56,17 @@ get_private_key(){
   # extract the replica number from the same PTR entry
   INDEX=`dig -x $IP +short | sed 's/.*_\([0-9]*\)\..*/\1/'`
 
-  # get the line in the file corresponding to index
-  key=$(sed -n "${INDEX}p" /shared/private-keys.txt)
-  echo $key
+  # iterate through list of private keys and get the one corresponding to the container index
+  # we need to iterate because array objects cannot be used in /bin/ash (Alpine) and a separate script would need to be called to use bash
+  current_index=1
+  for key in $private_keys
+  do
+    if [ $current_index -eq $INDEX ]; then
+      echo $key
+      break
+    fi
+    current_index=$((current_index+1))
+  done
 }
 
 if test -f .$RLN_CREDENTIAL_PATH; then
@@ -60,12 +75,14 @@ else
   private_key="$(get_private_key)"
   echo "Private key: $private_key"
 
+  echo "Generating RLN keystore"
   /usr/bin/wakunode generateRlnKeystore \
     --rln-relay-eth-client-address="$RPC_URL" \
     --rln-relay-eth-private-key=$private_key  \
     --rln-relay-eth-contract-address=$RLN_CONTRACT_ADDRESS \
     --rln-relay-cred-path=$RLN_CREDENTIAL_PATH \
     --rln-relay-cred-password=$RLN_CREDENTIAL_PASSWORD \
+    --log-level=INFO \
     --execute
 fi
 
@@ -102,7 +119,7 @@ exec /usr/bin/wakunode\
       --dns-discovery=true\
       --discv5-discovery=true\
       --discv5-enr-auto-update=True\
-      --log-level=INFO\
+      --log-level=DEBUG\
       --metrics-server=True\
       --metrics-server-address=0.0.0.0\
       --discv5-bootstrap-node=${BOOTSTRAP_ENR}\