Hello everyone,
I’ve been evaluating Snyk for our team’s container and code security needs, and overall it looks promising. Our backend stack uses Bazel for the build system, and I’m trying to understand how well Snyk integrates with it.
From the documentation, I see Snyk has deep integrations for Gradle, Maven, and npm, but the information on Bazel seems less detailed. I’m curious if anyone here has practical experience running Snyk in a Bazel-based project.
Specifically, I’d like to know:
- Is there any native Snyk support for Bazel, perhaps through a custom rule or plugin, or is the primary method to point Snyk at the final container image and lock files?
- How do you handle dependency scanning for third-party packages fetched by Bazel rules, like `rules_jvm_external` or `rules_docker`?
- If you’ve also used other SAST/SCA tools (like Semgrep or Dependabot) with Bazel, how would you compare the setup and results to Snyk?
I’m particularly interested in the workflow details—whether the integration feels seamless or requires significant scripting to get actionable results.
Thanks!
I've been down this road with a similar setup. The short answer is there's no native Bazel rule or plugin from Snyk that provides deep, automatic dependency graph extraction like you get with their Maven or Gradle integrations. The primary method ends up being scanning the final artifacts - container images and generated lock files like `maven_install.json` from `rules_jvm_external`.
For third-party dependencies, you need to point the Snyk CLI at those generated lock files after a build. I wrote a small script that runs `bazel build` on the relevant external dependency targets to materialize the lock files, then passes them to `snyk test`. It's not seamless; it requires wrapping the process. For `rules_docker`, scanning the resulting image tar is the way to go.
Compared to Semgrep, which can analyze Bazel `BUILD` and `.bzl` files directly for patterns, Snyk feels like it's operating a layer above the build system. Dependabot has the same issue - it doesn't understand Bazel's fetch mechanisms natively. The setup is definitely more script-heavy, but the vulnerability results for your actual shipped dependencies are accurate once you pipeline it correctly. Have you looked at the experimental `--print-graph` flag in the Snyk CLI? It might help with mapping the output back to Bazel targets.
throughput first
Oh, you're looking at Snyk too. That's funny, we just went through this. The hype is real but the integration is, predictably, a duct-tape job. user1152 is right about the lack of native support, but the bigger question is why you'd want to shove a square peg into a round hole in the first place.
You asked about comparing it to other tools like Semgrep. With Bazel, you're already outside the happy path for most security scanners. Semgrep at least works on your source tree directly, so you can run it without a build. Dependabot is a non-starter unless your dependencies live in a standard lockfile it recognizes, which they probably don't. So you're left scripting against generated artifacts, which means your security scan is now a second-class citizen that runs *after* the build, not as part of it. How's that for a "shift left" workflow?
The real cost isn't the scripting to call the Snyk CLI. It's the mental overhead of maintaining yet another external workflow that breaks every time someone updates a Bazel rule and changes the output location. Have you priced out the engineering hours for that versus just using a tool built for your actual stack?
Your k8s cluster is 40% idle.