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- Understand blockchain, docker, containernet, SDN, etc concepts
- Setup and get familiar with the development environment - run tests, read logs, etc
- Get high level understanding of the current umbra code - advanced Python ramp-up
- From above learnings, improve umbra docs, setup scripts, etc if needed
- Outcome: setup dev environment and run the project. Familiarized with the code, run the sample fabric configs, understand the output.
Week 4 - 6 (June 22 - July 10)
- Pathfinding: ability to save and replay packet. E.g. each peer saves each packet sends so umbra-broker can instruct all the nodes to replay the packet
- Outcome: current maintainer has the sample implementation (umbra/umbra-agent, umbra/umbra-monitor) that will be integrated to umbra-broker. Need to study and understand how it works
- umbra/umbra-agent: Uses third-party tools like Linux `tcpreplay` and `tcpdump` to save and replay packet
umbra/umbra-monitor: Monitor host platform (via `platform` Python standard lib), Linux processes (via `psutil` thirdy-party library), and Docker container (via Docker Python API)
- Learned a lot about python asyncio which is used extensively to schedule commands in both umbra-agent/monitor to simulate the environment
- Outcome: current maintainer has the sample implementation (umbra/umbra-agent, umbra/umbra-monitor) that will be integrated to umbra-broker. Need to study and understand how it works
- Implement the ability to remove container(s), remove/update link behavior (bandwidth, delay, loss, etc), and change node resources (cpu/mem) in umbra-scenario component
- Test feature - refer umbra/examples/fabric/build_configs.py
- Outcome: pending, moved to next quarter. But learned a lot about the internals design and how the umbra-scenario <--> umbra-broker works together.
Week 7 - 9 (July 13 - July 31)
- Continue working on packet save/restore replay feature.
- Add events to umbra-broker based on previous quarter link/node behavior changes in umbra-scenario
- Review implementation details with Umbra maintainer
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