docker related configs for network-delay tests

docker/Dockerfile.network_tests

@@ -0,0 +1,6 @@
+FROM aleph-node:latest
+
+RUN apt update && \
+        apt install curl iproute2 iputils-ping net-tools netwox tcpdump gdb -y && \
+        apt clean && \
+        rm -rf /var/lib/apt/lists/*

docker/docker-compose.network_test.yml

@@ -0,0 +1,45 @@
+services:
+  Node0:
+    image: aleph-node:network_tests
+    networks:
+      - main
+    environment:
+      - PURGE_BEFORE_START=false
+    cap_add:
+      - NET_ADMIN
+
+  Node1:
+    image: aleph-node:network_tests
+    networks:
+      - main
+    environment:
+      - PURGE_BEFORE_START=false
+    cap_add:
+      - NET_ADMIN
+
+  Node2:
+    image: aleph-node:network_tests
+    networks:
+      - main
+    environment:
+      - PURGE_BEFORE_START=false
+    cap_add:
+      - NET_ADMIN
+
+  Node3:
+    image: aleph-node:network_tests
+    networks:
+      - main
+    environment:
+      - PURGE_BEFORE_START=false
+    cap_add:
+      - NET_ADMIN
+
+  Node4:
+    image: aleph-node:network_tests
+    networks:
+      - main
+    environment:
+      - PURGE_BEFORE_START=false
+    cap_add:
+      - NET_ADMIN