# Kafka Client Load Test Runner Dockerfile
# Multi-stage build for cross-platform support

# Stage 1: Builder
FROM golang:1.26-alpine AS builder

WORKDIR /app

# Copy go module files
COPY test/kafka/kafka-client-loadtest/go.mod test/kafka/kafka-client-loadtest/go.sum ./
RUN go mod download

# Copy source code
COPY test/kafka/kafka-client-loadtest/ ./

# Build the loadtest binary
RUN CGO_ENABLED=0 GOOS=linux go build -o /kafka-loadtest ./cmd/loadtest

# Stage 2: Runtime
# Use alpine so we don't depend on Ubuntu apt mirrors, which intermittently
# refuse connections from GitHub Actions runners and fail the CI build.
# All runtime dependencies we need (ca-certificates, curl, jq, bash, nc)
# are in the Alpine main repo.
FROM alpine:3.20

RUN apk add --no-cache \
    ca-certificates \
    curl \
    jq \
    bash \
    netcat-openbsd

# Copy built binary from builder stage
COPY --from=builder /kafka-loadtest /usr/local/bin/kafka-loadtest
RUN chmod +x /usr/local/bin/kafka-loadtest

# Copy scripts and configuration
COPY test/kafka/kafka-client-loadtest/scripts/ /scripts/
COPY test/kafka/kafka-client-loadtest/config/ /config/

# Create results directory
RUN mkdir -p /test-results

# Make scripts executable
RUN chmod +x /scripts/*.sh

WORKDIR /app

# Default command runs the comprehensive load test
CMD ["/usr/local/bin/kafka-loadtest", "-config", "/config/loadtest.yaml"]