adding Dockerfile. adding github action to push image to ecr.

.dockerignore

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+.devcontainer/*
+.github/*

.github/workflows/docker_build_and_push.yaml

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+name: Docker Build and Push
+permissions:
+  checks: write
+  contents: write
+  pull-requests: write
+  statuses: write
+  id-token: write
+"on":
+  push:
+jobs:
+  build_push_image:
+    runs-on: ubuntu-latest
+    needs: test_and_lint
+    permissions:
+      id-token: write
+      contents: read
+    steps:
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: launchdarkly/common-actions/init@main
+      - uses: launchdarkly/common-actions/short-sha@main
+        id: short-sha
+      - uses: launchdarkly/common-actions/aws-auth@main
+        with:
+          role-session-name: 'McpServer'
+          ecr-login: 'true'
+          iam-role-arn: 'arn:aws:iam::011970158519:role/mcp-server-ecr-publisher'
+      - uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6.18.0
+        with:
+          context: .
+          file: Dockerfile
+          platforms: linux/amd64,linux/arm64
+          tags: |
+            ${{ format('{0}/launchdarkly/mcp:{1}', '709825985650.dkr.ecr.us-east-1.amazonaws.com', steps.short-sha.outputs.sha) }}
+          labels: |
+            org.opencontainers.image.title="mcp-server"
+            org.opencontainers.image.description="LaunchDarkly MCP Server"
+            org.opencontainers.image.version=${{ steps.short-sha.outputs.sha }}
+          push: ${{ github.ref == 'refs/heads/main' }}

Dockerfile

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+FROM node:24-bookworm-slim AS builder
+
+WORKDIR /app
+
+RUN npm install -g bun
+
+COPY package*.json ./
+
+RUN bun install 
+
+COPY . .
+
+RUN npm run build
+
+FROM gcr.io/distroless/nodejs24-debian12:970bec506fed86941afb61c21983f25b3b3fe68c
+
+WORKDIR /app
+
+# Copy built application from builder stage
+COPY --from=builder /app/dist ./dist
+COPY --from=builder /app/bin ./bin
+COPY --from=builder /app/package.json ./
+
+EXPOSE 8080
+ENTRYPOINT ["/nodejs/bin/node", "/app/bin/mcp-server.js", "start", "--transport", "sse", "--port", "8080"]