Tool for Traffic Generation, Management and Monitoring
Project description
LYDIAN
LYDIAN is a Traffic Generation, Traffic Management and Traffic Reporting tool.
It is based on Distributed System principles. It uses RPC for communication across nodes, Local Database for persistence and Daemon services for resiliency.
LYDIAN has its own in-built simple TCP/UDP client and servers and it also offers simple integration with other 3rd party tools such as IPERF. It recognizes the collection of nodes (to and from where traffic needs to be generated) as a "Cluster" and nodes can be attached and detached to cluster at any time during the operation.
Installation
LYDIAN is available as Python package and can be installed on Primary nodes using pip
as following.
pip install lydian
Usage
LYDIAN is simple to use. Below are some examples for different capabilities which are available.
Running Traffic
import time
import uuid
from lydian.apps.podium import get_podium
PASSWD = 'MY_PASSWORD' # Password for SSH access to nodes.
VM0_IP = 'a.b.c.d'
VM1_IP = 'w.x.y.z'
podium = get_podium()
podium.add_hosts(VM0_IP, password=PASSWD)
podium.add_hosts(VM1_IP, password=PASSWD)
# podium.add_endpoints(vms[0].ip, password=PASSWD)
# podium.add_endpoints(vms[1].ip, password=PASSWD)
DUMMY_RULE = {
'reqid': '%s' % uuid.uuid4(),
'ruleid': '%s' % uuid.uuid4(),
'src': VM0_IP,
'dst': VM1_IP,
'protocol': 'TCP',
'port': 9465,
'connected': True
}
rules = []
# Create Rule 1
rules.append(DUMMY_RULE)
# Ask the tool to register your intent.
podium.register_traffic(rules)
Packet Capture
from lydian.apps.podium import get_podium
from lydian.utils.ssh_host import Host
VM_IP = '1.2.3.4'
# Delete any old PCAP file at endpoint
with Host(VM_IP, user='root', passwd='PASSWD') as host:
host.req_call('rm -rf /tmp/test_pcap.pcap')
# Also remove any local file
try:
os.remove('/tmp/test_pcap.pcap')
except FileNotFoundError:
pass
podium = get_podium()
# Prepare the node (if not done already)
podium.add_hosts(VM_IP, password=PASSWD)
# Start Packet Capture
podium.start_pcap(VM_IP, pcap_file_name='test_pcap.pcap', interface='eth0')
time.sleep(10)
podium.stop_pcap(vm1, pcap_file_name='test_pcap.pcap')
# Download file locally.
with Host(VM_IP, user='root', passwd='PASSWD') as host:
host.get_file('rm -rf /tmp/test_pcap.pcap')
# Run any tool on this file like tcpreplay/ wireshark on this file or simply check
# that file exists.
assert os.path.exists(os.path.join('/tmp', 'test_pcap.pcap'))
Generating Traffic from IPERF
from lydian.apps.podium import get_podium
podium = get_podium()
# Prepare the nodes (if not done already)
podium.add_hosts(VM1_IP, password=PASSWD)
podium.add_hosts(VM2_IP, password=PASSWD)
result = podium.run_iperf3(src_ip, dst_ip)
result_dict = json.loads(result)
Repository & License
LYDIAN is a fork from VMWARE's project https://github.com/vmware/validation-app-engine . It has its own independent workflow and internal architecture so nothing should be assumed from the flow and calls perspective. However, corresponding licenses apply to the usage of this tool. Please check them in LICENSE FILE.
https://github.com/gitvipin/validation-app-engine
Requirements
Python 3.6.8+
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