Dockerfile.agent

# Parameterized Dockerfile for building individual Stats Agent components
# Usage: docker build --build-arg AGENT=research -t stats-agent-research .
#
# Supported AGENT values:
#   - research
#   - synthesis
#   - verification
#   - orchestration
#   - orchestration-eino
#   - direct
#
# CONFIG_FILE: Which config to use (default: config.json, use config.aws.json for AWS)

ARG AGENT=research
ARG CONFIG_FILE=config.json

# Stage 1: Build the specified agent
FROM golang:1.25-alpine AS builder

ARG AGENT

# Install build dependencies
RUN apk add --no-cache git make

WORKDIR /build

# Copy go mod files first for layer caching
COPY go.mod go.sum ./
RUN go mod download

# Copy source code
COPY . .

# Build the specified agent (use directory to include all .go files)
RUN go build -ldflags="-s -w" -o /build/bin/agent ./agents/${AGENT}/

# Stage 2: Create minimal runtime image
FROM alpine:3.19

ARG AGENT
ARG CONFIG_FILE
ENV AGENT_NAME=${AGENT}

# Install runtime dependencies
RUN apk add --no-cache ca-certificates wget

# Create non-root user for security
RUN addgroup -S appgroup && adduser -S appuser -G appgroup

WORKDIR /app

# Copy binary from builder
COPY --from=builder /build/bin/agent /app/agent

# Copy config file (for config.json-based configuration)
COPY ${CONFIG_FILE} /app/config.json

# Set ownership
RUN chown -R appuser:appgroup /app

USER appuser

# Labels for container metadata
LABEL org.opencontainers.image.title="Stats Agent - ${AGENT}" \
      org.opencontainers.image.description="Statistics Agent Team - ${AGENT} component" \
      org.opencontainers.image.source="https://github.com/agentplexus/stats-agent-team"

# Health check (port configured via env)
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
    CMD wget --no-verbose --tries=1 --spider http://localhost:${PORT:-8080}/health || exit 1

# Run the agent
ENTRYPOINT ["/app/agent"]