Dependabot and Workflow Hardening#92
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Signed-off-by: Eric Pickard <piceri@github.com>
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Pull request overview
This PR hardens the repository’s supply-chain posture by enforcing Go module immutability during CI runs and delaying Dependabot update PR creation until new releases have aged for a short cooldown period.
Changes:
- Set
GOFLAGS: "-mod=readonly"for Go-based GitHub Actions jobs to prevent implicitgo.mod/go.sumedits during CI. - Add a
cooldownperiod of 3 days to Dependabot updates across configured ecosystems. - Extend Dependabot grouping consistency by adding a
minor-patchgroup to Docker updates.
Show a summary per file
| File | Description |
|---|---|
.github/workflows/lint.yml |
Adds GOFLAGS=-mod=readonly to the lint job to ensure module files aren’t modified in CI. |
.github/workflows/build.yml |
Adds GOFLAGS=-mod=readonly to build and test jobs for the same immutability guarantee during compilation/tests. |
.github/dependabot.yml |
Adds a 3-day cooldown to updates and aligns Docker updates with existing minor/patch grouping. |
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bdehamer
approved these changes
Jun 5, 2026
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This changes adds the following changes to increase security posture towards supply chain style attacks:
-mod=readonly