k8s-mcp-server

# Use the official Golang image with the latest version for building FROM --platform=$BUILDPLATFORM golang:alpine AS builder # Install git (required for go modules) and update all packages RUN apk --no-cache upgrade && apk --no-cache add git ca-certificates # Set the working directory inside the container WORKDIR /app # Copy go mod and sum files COPY go.mod go.sum ./ # Set GOTOOLCHAIN to auto to allow automatic toolchain upgrades ENV GOTOOLCHAIN=auto # Download dependencies RUN go mod download # Copy the source code COPY . . # Build arguments for cross-compilation ARG TARGETOS ARG TARGETARCH # Build the Go app with cross-compilation support RUN CGO_ENABLED=0 GOOS=${TARGETOS:-linux} GOARCH=${TARGETARCH:-amd64} \ go build -ldflags="-w -s" -o k8s-mcp-server main.go # Use a minimal base image instead of scratch for better compatibility FROM alpine:latest # Install ca-certificates and curl for health checks RUN apk --no-cache add ca-certificates curl # Create a non-root user RUN addgroup -g 1001 -S appgroup && \ adduser -u 1001 -S appuser -G appgroup # Copy the binary from the builder stage COPY --from=builder /app/k8s-mcp-server /usr/local/bin/k8s-mcp-server # Make the binary executable RUN chmod +x /usr/local/bin/k8s-mcp-server # Switch to non-root user USER appuser # Expose the port the app runs on EXPOSE 8080 # Set default environment variables ENV SERVER_MODE=sse ENV SERVER_PORT=8080 # Health check HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \ CMD curl -f http://localhost:8080/ || exit 1 # Command to run the executable ENTRYPOINT ["/usr/local/bin/k8s-mcp-server"]