diff --git a/demo-discovery.sh b/demo-discovery.sh
new file mode 100755
index 0000000..4b4412a
--- /dev/null
+++ b/demo-discovery.sh
@@ -0,0 +1,23 @@
+#!/bin/bash
+
+IMAGE_BASE_NAME="oc-discovery"
+DOCKERFILE_PATH="."
+
+for i in {0..3}; do
+  NUM=$((i + 1))
+  PORT=$((4000 + $NUM))
+
+  IMAGE_NAME="${IMAGE_BASE_NAME}:${NUM}"
+
+  echo "▶ Building image ${IMAGE_NAME} with CONF_NUM=${NUM}"
+  docker build \
+    --build-arg CONF_NUM=${NUM} \
+    -t ${IMAGE_NAME} \
+    ${DOCKERFILE_PATH}
+
+  echo "▶ Running container ${IMAGE_NAME} on port ${PORT}:${PORT}"
+  docker run -d \
+    -p ${PORT}:${PORT} \
+    --name "${IMAGE_BASE_NAME}_${NUM}" \
+    ${IMAGE_NAME}
+done
\ No newline at end of file
diff --git a/discovery.json b/discovery.json
deleted file mode 100644
index e866da8..0000000
--- a/discovery.json
+++ /dev/null
@@ -1,10 +0,0 @@
-{
-    "port": 8080,
-    "redisurl":"localhost:6379",
-    "redispassword":"",
-    "zincurl":"http://localhost:4080", 
-    "zinclogin":"admin", 
-    "zincpassword":"admin", 
-    "identityfile":"/app/identity.json",
-    "defaultpeers":"/app/peers.json"
-}
\ No newline at end of file
diff --git a/docker_discovery.json b/docker_discovery.json
deleted file mode 100644
index e866da8..0000000
--- a/docker_discovery.json
+++ /dev/null
@@ -1,10 +0,0 @@
-{
-    "port": 8080,
-    "redisurl":"localhost:6379",
-    "redispassword":"",
-    "zincurl":"http://localhost:4080", 
-    "zinclogin":"admin", 
-    "zincpassword":"admin", 
-    "identityfile":"/app/identity.json",
-    "defaultpeers":"/app/peers.json"
-}
\ No newline at end of file
diff --git a/docker_discovery1.json b/docker_discovery1.json
new file mode 100644
index 0000000..dab3a9b
--- /dev/null
+++ b/docker_discovery1.json
@@ -0,0 +1,6 @@
+{
+    "MONGO_URL":"mongodb://mongo:27017/", 
+    "MONGO_DATABASE":"DC_myDC",
+    "NATS_URL": "nats://nats:4222",
+    "NODE_MODE": "indexer"
+}
\ No newline at end of file
diff --git a/docker_discovery2.json b/docker_discovery2.json
new file mode 100644
index 0000000..742ff7d
--- /dev/null
+++ b/docker_discovery2.json
@@ -0,0 +1,8 @@
+{
+    "MONGO_URL":"mongodb://mongo:27017/", 
+    "MONGO_DATABASE":"DC_myDC",
+    "NATS_URL": "nats://nats:4222",
+    "NODE_MODE": "indexer",
+    "NODE_ENDPOINT_PORT": 4002,
+    "INDEXER_ADDRESSES": "/ip4/oc-discovery1/tcp/4001/p2p/12D3KooWGn3j4XqTSrjJDGGpTQERdDV5TPZdhQp87rAUnvQssvQu"
+}
\ No newline at end of file
diff --git a/docker_discovery3.json b/docker_discovery3.json
new file mode 100644
index 0000000..7266820
--- /dev/null
+++ b/docker_discovery3.json
@@ -0,0 +1,8 @@
+{
+    "MONGO_URL":"mongodb://mongo:27017/", 
+    "MONGO_DATABASE":"DC_myDC",
+    "NATS_URL": "nats://nats:4222",
+    "NODE_MODE": "node",
+    "NODE_ENDPOINT_PORT": 4003,
+    "INDEXER_ADDRESSES": "/ip4/oc-discovery2/tcp/4002/p2p/12D3KooWC3GNStak8KCYtJq11Dxiq45EJV53z1ZvKetMcZBeBX6u"
+}
\ No newline at end of file
diff --git a/docker_discovery4.json b/docker_discovery4.json
new file mode 100644
index 0000000..fe93f09
--- /dev/null
+++ b/docker_discovery4.json
@@ -0,0 +1,9 @@
+{
+    "MONGO_URL":"mongodb://mongo:27017/", 
+    "MONGO_DATABASE":"DC_myDC",
+    "NATS_URL": "nats://nats:4222",
+    "NODE_MODE": "node",
+    "NODE_ENDPOINT_PORT": 4004,
+    "INDEXER_ADDRESSES": "/ip4/oc-discovery1/tcp/4001/p2p/12D3KooWGn3j4XqTSrjJDGGpTQERdDV5TPZdhQp87rAUnvQssvQu",
+    "PEER_IDS": "/ip4/oc-discovery3/tcp/4003/p2p/12D3KooWGn3j4XqTSrjJDGGpTQERdDV5TPZdhQp87rAUnvQssvQu"
+}
\ No newline at end of file
diff --git a/pem/private.pem b/pem/private1.pem
similarity index 100%
rename from pem/private.pem
rename to pem/private1.pem
diff --git a/pem/private2.pem b/pem/private2.pem
new file mode 100644
index 0000000..1b70fcd
--- /dev/null
+++ b/pem/private2.pem
@@ -0,0 +1,3 @@
+-----BEGIN PRIVATE KEY-----
+MC4CAQAwBQYDK2VwBCIEIE58GDazCyF1jp796ivSmHiCepbkC8TpzliIaQ7eGEpu
+-----END PRIVATE KEY-----
diff --git a/pem/private3.pem b/pem/private3.pem
new file mode 100644
index 0000000..06e96ed
--- /dev/null
+++ b/pem/private3.pem
@@ -0,0 +1,3 @@
+-----BEGIN PRIVATE KEY-----
+MC4CAQAwBQYDK2VwBCIEIAeX4O7ldwehRSnPkbzuE6csyo63vjvqAcNNujENOKUC
+-----END PRIVATE KEY-----
diff --git a/pem/private4.pem b/pem/private4.pem
new file mode 100644
index 0000000..fb35164
--- /dev/null
+++ b/pem/private4.pem
@@ -0,0 +1,3 @@
+-----BEGIN PRIVATE KEY-----
+MC4CAQAwBQYDK2VwBCIEIEkgqINXDLnxIJZs2LEK9O4vdsqk43dwbULGUE25AWuR
+-----END PRIVATE KEY-----
diff --git a/pem/public.pem b/pem/public1.pem
similarity index 100%
rename from pem/public.pem
rename to pem/public1.pem
diff --git a/pem/public2.pem b/pem/public2.pem
new file mode 100644
index 0000000..ce3b5c4
--- /dev/null
+++ b/pem/public2.pem
@@ -0,0 +1,3 @@
+-----BEGIN PUBLIC KEY-----
+MCowBQYDK2VwAyEAIQVeSGwsjPjyepPTnzzYqVxIxviSEjZXU7C7zuNTui4=
+-----END PUBLIC KEY-----
diff --git a/pem/public3.pem b/pem/public3.pem
new file mode 100644
index 0000000..3c2550d
--- /dev/null
+++ b/pem/public3.pem
@@ -0,0 +1,3 @@
+-----BEGIN PUBLIC KEY-----
+MCowBQYDK2VwAyEAG95Ettl3jTi41HM8le1A9WDmOEq0ANEqpLF7zTZrfXA=
+-----END PUBLIC KEY-----
diff --git a/pem/public4.pem b/pem/public4.pem
new file mode 100644
index 0000000..b7d538d
--- /dev/null
+++ b/pem/public4.pem
@@ -0,0 +1,3 @@
+-----BEGIN PUBLIC KEY-----
+MCowBQYDK2VwAyEA/ymOIb0sJ0qCWrf3mKz7ACCvsMXLog/EK533JfNXZTM=
+-----END PUBLIC KEY-----