azure: read custom data from ovf-env.xml - #2321
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…data # Conflicts: # docs/release-notes.md
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📝 WalkthroughWalkthroughThe Azure provider now reads base64-encoded custom data from ChangesAzure custom data loading
Estimated code review effort: 2 (Simple) | ~10 minutes Merge Risk: ⚪ Minimal · up to Azure custom data loading now uses OVF environment data; no unresolved merge-blocking risk is identified in the supplied change context. 🚥 Pre-merge checks | ✅ 6✅ Passed checks (6 passed)
✨ Finishing Touches🧪 Generate unit tests (beta)
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| PR (#2321) | 33MiB |
| Delta | +1.1KiB (0.00%) |
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In `@internal/providers/azure/azure.go`:
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docs/ignition-flow.mddocs/release-notes.mdinternal/providers/azure/azure.gointernal/providers/azure/azure_test.go
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📓 Path-based instructions (5)
Platform providers must retry config fetch, allow empty config, and never guess the platform ID.
⚙️ CodeRabbit configuration file
Files:
internal/providers/azure/azure_test.gointernal/providers/azure/azure.go
Documentation served via GitHub Pages/Jekyll.
⚙️ CodeRabbit configuration file
Files:
docs/ignition-flow.mddocs/release-notes.md
**Platform providers must**: retry config fetch, allow empty config, never guess platform ID.
📄 CodeRabbit inference engine (AGENTS.md)
Files:
internal/providers/azure/azure_test.gointernal/providers/azure/azure.go
**Naming**: PascalCase exported, camelCase unexported, snake_case filenames
📄 CodeRabbit inference engine (AGENTS.md)
Files:
internal/providers/azure/azure_test.gointernal/providers/azure/azure.go
**Formatting**: `gofmt` enforced (CI and `./test`) **License header**: Required on all `.go` files (Apache 2.0, 13-line header) **Imports**: stdlib, blank line, project packages, blank line, external deps
📄 CodeRabbit inference engine (AGENTS.md)
Files:
internal/providers/azure/azure_test.gointernal/providers/azure/azure.go
angelcerveraroldan
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angelcerveraroldan
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Thanks for working on this!
Not super familiar with Azure, so I have just left a small question.
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| configPath = "/CustomData.bin" |
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Why are we dropping CustomData.bin for ovf-env.xml, rather than checking for both ?
Would there ever be cases where the old /CustomData.bin is populated and the correct place from which to read?
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Good question!
To make a long answer short, there's really never a scenario where /CustomData.bin is populated and the ovf isn't.
Azure almost exclusively uses the OVF at this point, and all of the custom data that's exposed to the guest is already available in ovf-env.xml.
That's also backed up by the fact that /CustomData.bin was broken for CVMs for a bit and nobody noticed until it came up in the Fedora thread!
That said, I'm not strongly opposed to keeping /CustomData.bin as a fallback if it makes people more comfortable. I just haven't found an Azure scenario where it would buy us anything, since the same data should already be available in ovf-env.xml.
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Summary
Azure's provider previously read custom user-data from
CustomData.bin. This PR switchesto reading custom data directly from
ovf-env.xml, dropping reliance onCustomData.bin.Changes
internal/providers/azure/azure.go: read custom data fromovf-env.xmlinstead ofCustomData.bininternal/providers/azure/azure_test.go: add tests covering the new custom data parsingdocs/ignition-flow.md,docs/release-notes.md: documentation updatesRelated issue thread: coreos/fedora-coreos-tracker#2191