fix: add workaround for missing PowerShell adapter manifest

[johlju]

This change is 

[coderabbitai]

Walkthrough

The Dockerfile adds idempotent logic that detects DSC version and conditionally downloads PowerShell_adapter.dsc.resource.json into DSC v3 install locations if the manifest is missing, skipping WindowsPowerShell_adapter.

Changes

Cohort / File(s)	Summary
DSCv3 Adapter Manifest Workaround Dockerfile	Adds DSC_VERSION detection (dsc --version) and conditional RUN blocks that check for PowerShell_adapter.dsc.resource.json in /opt/microsoft/dsc and fetch it from the upstream PowerShell DSC repository only when absent; explicitly excludes WindowsPowerShell_adapter.

Sequence Diagram(s)

sequenceDiagram
    participant Builder as Docker build
    participant FS as Container filesystem (/opt/microsoft/dsc)
    participant Upstream as Upstream DSC repo (GitHub)

    Builder->>FS: run check for PowerShell_adapter.dsc.resource.json
    alt file exists
        FS-->>Builder: file found -> skip download
    else file missing
        Builder->>Upstream: curl raw manifest (using DSC_VERSION)
        Upstream-->>Builder: manifest content
        Builder->>FS: write manifest to /opt/microsoft/dsc
    end

Loading

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 inconclusive)

Check name	Status	Explanation	Resolution
Description check	❓ Inconclusive	The description is minimal but related to the changeset, containing only a Reviewable embed without additional context.	Add meaningful description explaining the purpose, motivation, or impact of the workaround for better context.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately describes the main change: adding a workaround for a missing PowerShell adapter manifest in a Dockerfile.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

---

No actionable comments were generated in the recent review. 🎉

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}

[coderabbitai]

Actionable comments posted: 1

🤖 Fix all issues with AI agents

In `@Dockerfile`:
- Around line 105-111: The Dockerfile uses ENV DSC_VERSION and sudo in the
build-stage curl block which causes CI lint failures and needlessly exposes a
build-only variable; change ENV DSC_VERSION to an ARG (used only at build time)
and remove the unnecessary sudo from the curl/if block that writes to
"${DSC_DIR}/PowerShell_adapter.dsc.resource.json" (you are still root until USER
developer). Also address the potential version drift between Install-DscExe
-IncludePrerelease (which installs the latest prerelease) and the hardcoded
DSC_VERSION by either deriving DSC_VERSION dynamically from the installed DSC at
build time or adding a clear comment that DSC_VERSION must be manually kept in
sync with the version installed by Install-DscExe.

[coderabbitai]

Actionable comments posted: 1

🤖 Fix all issues with AI agents

In `@Dockerfile`:
- Around line 105-111: Replace the curl call with wget to match the rest of the
Dockerfile: use DSC_DIR and DSC_VERSION (computed from dsc --version) and
download the same URL into "${DSC_DIR}/PowerShell_adapter.dsc.resource.json"
with wget flags that quiet output and write to that path (e.g., --quiet and
-O/--output-document), preserving redirect behavior; keep the surrounding
conditional that checks for the file and the DSC_VERSION extraction logic intact
so only the downloader changes.

[johlju]

@coderabbitai review

[coderabbitai]

✅ Actions performed

Review triggered.

Note: CodeRabbit is an incremental review system and does not re-review already reviewed commits. This command is applicable only when automatic reviews are paused.