Add Dockerfile and fine-tune to run in containers

* Raise the log level to INFO
* Listen to 0.0.0.0 by default when running in a container,
  as 127.0.0.1 will not be visible outside the container
* Rename the binary to elasticsearch-core-mcp-server

Author: swallez

.dockerignore

@@ -0,0 +1,5 @@
+npm-package
+docs
+target
+.idea
+.vscode

Dockerfile

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+# Copyright Elasticsearch B.V. and contributors
+# SPDX-License-Identifier: Apache-2.0
+
+# To create a multi-arch image, run:
+# docker buildx build --platform linux/amd64,linux/arm64 --tag elasticsearch-core-mcp-server .
+
+FROM rust:1.88 AS builder
+
+WORKDIR /app
+
+COPY Cargo.toml Cargo.lock ./
+COPY crates/elastic-mcp/Cargo.toml ./crates/elastic-mcp/
+
+# Cache dependencies
+RUN --mount=type=cache,target=/usr/local/cargo/registry \
+    --mount=type=cache,target=/app/target \
+    mkdir -p ./crates/elastic-mcp/src/bin && \
+    echo "pub fn main() {}" > ./crates/elastic-mcp/src/bin/elasticsearch-core-mcp-server.rs && \
+    cargo build --release --bin elasticsearch-core-mcp-server
+
+COPY crates ./crates/
+
+RUN cargo build --release --bin elasticsearch-core-mcp-server
+
+#--------------------------------------------------------------------------------------------------
+
+FROM cgr.dev/chainguard/wolfi-base:latest
+
+COPY --from=builder /app/target/release/elasticsearch-core-mcp-server /usr/local/bin/elasticsearch-core-mcp-server
+
+ENTRYPOINT ["/usr/local/bin/elasticsearch-core-mcp-server"]