#######################

# Docker.backend

#

# Author: Andrei Tumbar

# Brief: Build the Hermes code

#

#######################

############################################################

# Backend build stage

############################################################

FROM golang:1.26-alpine AS builder-backend

# Install build dependencies

RUN apk add --no-cache git make

WORKDIR /build

# Copy go mod files first for better caching

COPY go.mod go.sum ./

RUN go mod download

# Copy source code

COPY . .

# Build the backend binary

RUN CGO_ENABLED=0 GOOS=linux go build -o backend ./cmd/backend

############################################################

# Runtime stage

############################################################

FROM alpine

# Install runtime dependencies

RUN apk add --no-cache ca-certificates tzdata

WORKDIR /app

# Copy backend binary from builder

COPY --from=builder-backend /build/backend /app/backend

# Create directories for config and data

RUN mkdir -p /app/config /app/data

EXPOSE 6880

# Health check

HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \

CMD ["/app/backend", "--help"] || exit 1

RUN /app/backend --generate-config > /app/config/hermes.toml

ENTRYPOINT ["/app/backend"]

CMD ["--bind", "0.0.0.0:6880", "--config", "app/config/hermes.toml", "--root", "/app/data", "--verbose"]