initial commit with some docker nodes integrating with core at a basic level

daemon/examples/docker/README.md

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+# Docker Support
+
+Information on how Docker can be leveraged and included to create
+nodes based on Docker containers and images to interface with
+existing CORE nodes, when needed.
+
+# Installation
+
+```shell
+sudo apt install docker.io
+```
+
+# Configuration
+
+Custom configuration required to avoid iptable rules being added and removing
+the need for the default docker network, since core will be orchestrating
+connections between nodes.
+
+Place the file below in **/etc/docker/**
+* daemon.json
+
+# Tools and Versions Tested With
+
+* Docker version 18.09.5, build e8ff056
+* nsenter from util-linux 2.31.1
+
+# Examples
+
+This directory provides a few small examples creating Docker nodes
+and linking them to themselves or with standard CORE nodes.

daemon/examples/docker/daemon.json

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+{
+	"bridge": "none",
+	"iptables": false
+
+}

daemon/examples/docker/docker2core.py

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+import logging
+
+from core.emulator.coreemu import CoreEmu
+from core.emulator.emudata import IpPrefixes
+from core.emulator.enumerations import NodeTypes, EventTypes
+
+
+if __name__ == "__main__":
+    logging.basicConfig(level=logging.DEBUG)
+
+    coreemu = CoreEmu()
+    session = coreemu.create_session()
+    session.set_state(EventTypes.CONFIGURATION_STATE)
+
+    # create nodes and interfaces
+    try:
+        prefixes = IpPrefixes(ip4_prefix="10.83.0.0/16")
+        node_one = session.add_node(_type=NodeTypes.DOCKER)
+        node_two = session.add_node()
+        interface_one = prefixes.create_interface(node_one)
+        interface_two = prefixes.create_interface(node_two)
+
+        # add link
+        input("press key to continue")
+        session.add_link(node_one.id, node_two.id, interface_one, interface_two)
+        print(node_one.cmd_output("ifconfig"))
+        print(node_two.cmd_output("ifconfig"))
+        input("press key to continue")
+    finally:
+        input("continue to shutdown")
+        coreemu.shutdown()

daemon/examples/docker/docker2docker.py

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+import logging
+
+from core.emulator.coreemu import CoreEmu
+from core.emulator.emudata import IpPrefixes
+from core.emulator.enumerations import NodeTypes, EventTypes
+
+
+if __name__ == "__main__":
+    logging.basicConfig(level=logging.DEBUG)
+
+    coreemu = CoreEmu()
+    session = coreemu.create_session()
+    session.set_state(EventTypes.CONFIGURATION_STATE)
+
+    # create nodes and interfaces
+    try:
+        prefixes = IpPrefixes(ip4_prefix="10.83.0.0/16")
+        node_one = session.add_node(_type=NodeTypes.DOCKER)
+        node_two = session.add_node(_type=NodeTypes.DOCKER)
+        interface_one = prefixes.create_interface(node_one)
+        interface_two = prefixes.create_interface(node_two)
+
+        # add link
+        input("press key to continue")
+        session.add_link(node_one.id, node_two.id, interface_one, interface_two)
+        print(node_one.cmd_output("ifconfig"))
+        print(node_two.cmd_output("ifconfig"))
+        input("press key to continue")
+    finally:
+        input("continue to shutdown")
+        coreemu.shutdown()

daemon/examples/docker/switch.py

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+import logging
+
+from core.emulator.coreemu import CoreEmu
+from core.emulator.emudata import IpPrefixes
+from core.emulator.enumerations import NodeTypes, EventTypes
+
+
+if __name__ == "__main__":
+    logging.basicConfig(level=logging.DEBUG)
+
+    coreemu = CoreEmu()
+    session = coreemu.create_session()
+    session.set_state(EventTypes.CONFIGURATION_STATE)
+
+    # create nodes and interfaces
+    try:
+        prefixes = IpPrefixes(ip4_prefix="10.83.0.0/16")
+        switch = session.add_node(_type=NodeTypes.SWITCH)
+        node_one = session.add_node(_type=NodeTypes.DOCKER)
+        node_two = session.add_node(_type=NodeTypes.DOCKER)
+        node_three = session.add_node()
+        interface_one = prefixes.create_interface(node_one)
+        interface_two = prefixes.create_interface(node_two)
+        interface_three = prefixes.create_interface(node_three)
+
+        # add link
+        input("press key to continue")
+        session.add_link(node_one.id, switch.id, interface_one)
+        session.add_link(node_two.id, switch.id, interface_two)
+        session.add_link(node_three.id, switch.id, interface_three)
+        print(node_one.cmd_output("ifconfig"))
+        print(node_two.cmd_output("ifconfig"))
+        input("press key to continue")
+    finally:
+        input("continue to shutdown")
+        coreemu.shutdown()