Since we operate at the TCP level, we can actually handle pretty much any protocol. I have an implementation of a postgres handler in my git stash that intercepts and shows the SQL queries executed + the resulting rows alongside the HTTP request that triggered it (I still need to do some robustness and correctness testing before it's ready to merge). With a handful of other protocols like MySQL, Mongo, Redis, Kafka, or even FTP lol, I think Subtrace can cover most practical dev workloads.
Btw Subtrace can already record .pcap files today since it's just a simple TCP stream proxy, but raw network packet captures are mostly only useful when you're implementing new protocols, which 99% of the people using Docker containers today aren't doing. It's also a solved problem because you can just run `apt-get install tcpdump` inside the container.
Automatic tracing for app-level protocols that is easy to setup, works everywhere, lightweight for prod, fast to search, and can show the data in a clean interface is still insanely difficult today. That's the problem Subtrace is trying to solve.
alt Hacker News
For now, yes :)
Since we operate at the TCP level, we can actually handle pretty much any protocol. I have an implementation of a postgres handler in my git stash that intercepts and shows the SQL queries executed + the resulting rows alongside the HTTP request that triggered it (I still need to do some robustness and correctness testing before it's ready to merge). With a handful of other protocols like MySQL, Mongo, Redis, Kafka, or even FTP lol, I think Subtrace can cover most practical dev workloads.
Btw Subtrace can already record .pcap files today since it's just a simple TCP stream proxy, but raw network packet captures are mostly only useful when you're implementing new protocols, which 99% of the people using Docker containers today aren't doing. It's also a solved problem because you can just run `apt-get install tcpdump` inside the container.
Automatic tracing for app-level protocols that is easy to setup, works everywhere, lightweight for prod, fast to search, and can show the data in a clean interface is still insanely difficult today. That's the problem Subtrace is trying to solve.