Support multi-platform builds. Use distroless image.

[conniey]

What does this PR do?

• Support multi-platform builds.
• Use distroless image.

GitHub issue number?

#146 #302

Pre-merge Checklist

• Required for All PRs
  • Read contribution guidelines
  • PR title clearly describes the change
  • Commit history is clean with descriptive messages (cleanup guide)
  • Added comprehensive tests for new/modified functionality
  • Updated servers/Azure.Mcp.Server/CHANGELOG.md and/or servers/Fabric.Mcp.Server/CHANGELOG.md for product changes (features, bug fixes, UI/UX, updated dependencies)
• For MCP tool changes:
  • One tool per PR: This PR adds or modifies only one MCP tool for faster review cycles
  • Updated servers/Azure.Mcp.Server/README.md and/or servers/Fabric.Mcp.Server/README.md documentation
  • Updated command list in /servers/Azure.Mcp.Server/docs/azmcp-commands.md and/or /docs/fabric-commands.md
  • For new or modified tool descriptions, ran ToolDescriptionEvaluator and obtained a score of 0.4 or more and a top 3 ranking for all related test prompts
  • For new tools associated with Azure services or publicly available tools/APIs/products, add URL to documentation in the PR description
• Extra steps for Azure MCP Server tool changes:
  • Updated test prompts in /servers/Azure.Mcp.Server/docs/e2eTestPrompts.md
  • 👉 For Community (non-Microsoft team member) PRs:
    • Security review: Reviewed code for security vulnerabilities, malicious code, or suspicious activities before running tests (crypto mining, spam, data exfiltration, etc.)
    • Manual tests run: added comment /azp run mcp - pullrequest - live to run Live Test Pipeline

[hallipr]

This may be easier to support by templating PUBLISH_DIR with os and arch outside of the docker build call... we should also just assume PUBLISH_DIR is a path to binary root. Also, we'll need to support other servers:

Suggested change

	COPY ${PUBLISH_DIR}/${TARGETOS}-${TARGETARCH}/dist/ /azuremcpserver/
	WORKDIR /azuremcpserver
	COPY ${PUBLISH_DIR} /mcpserver/
	WORKDIR /mcpserver

[hallipr]

Also, to support multiple servers, we need to start passing the CLI name in. This is a little difficult as ENTRYPOINT doesn't have access to build variables and doesn't evaluate environment variables, se we can't do something simple like:

ENTRYPOINT ["./${CLI_NAME}", "server", "start"]

or even

ENV CLI=${CLI_NAME}
ENTRYPOINT ["./$CLI", "server", "start"]

If we use the exec form, but invoke the shell, we can still wire up additional docker run args:

ENV CLI=${CLI_NAME}
ENTRYPOINT ["sh", "-c", "./$CLI server start $@"]

I'm not sure how this compares to the shell form:

ENV CLI=${CLI_NAME}
ENTRYPOINT "./$CLI" server start $0

[hallipr]

Using the shell-via-exec form, I was able to pass additional command line parameters through a docker run call:

> docker run azure-sdk/template-mcp:0.0.12-alpha.12345 --version
0.0.12-alpha.12345+3af3798511a7cf2441b662c2473941070331c5de

[hallipr]

not needed anymore?

Suggested change

	foreach ($os in $operatingSystems) {
	}