Add a Dockerfile to run with Docker

[dgageot]

Use this MCP Server

{
  "mcpServers": {
    "elasticsearch": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e"
        "ES_URL"
        "-e"
        "ES_API_KEY"
        "mcp/elasticsearch"
      ],
      "env": {
        "ES_URL": "http://localhost:9200",
        "ES_API_KEY": "your-api-key"
      }
    }
  }
}

[cla-checker-service]

💚 CLA has been signed

[jedrazb]

Hey @dgageot, thanks for your contribution!
Would it be possible to build the image on top of Chainguard’s hardened Wolfi base image instead? Using pinned Debian-based images doesn’t align with the standards we follow in other repos. Switching to the publicly available cgr.dev/chainguard/wolfi-base:latest (example) would reduce our maintenance burden in the long run.

[jedrazb]

buildkite test this

[dgageot]

@jedrazb I'll give it a try!

[JoshMock]

Dockerfile using an Elastic-approved image was added in #80/#82.