Dockerfile

# --- Stage 1: Build remotemoe ---
FROM golang:1.21-alpine AS builder

RUN apk add --no-cache git
WORKDIR /app

# Copy dependency files and source
COPY go.mod go.sum ./
RUN go mod download
COPY . .

# Build statically
RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o remotemoe main.go

# --- Stage 2: Runtime ---
FROM alpine:latest

# Install sslh (multiplexer) and supervisor (process manager)
RUN apk add --no-cache sslh supervisor ca-certificates

WORKDIR /root/

# Copy binary from builder
COPY --from=builder /app/remotemoe .

# Create directories
RUN mkdir -p /etc/remotemoe /var/log/supervisor

# 1. Configure Supervisor
# This runs both remotemoe and sslh at the same time
RUN echo "[supervisord]" > /etc/supervisord.conf && \
    echo "nodaemon=true" >> /etc/supervisord.conf && \
    echo "" >> /etc/supervisord.conf && \
    echo "[program:remotemoe]" >> /etc/supervisord.conf && \
    echo "command=/root/remotemoe --ssh-addr :2222 --http-addr :8080" >> /etc/supervisord.conf && \
    echo "stdout_logfile=/dev/stdout" >> /etc/supervisord.conf && \
    echo "stdout_logfile_maxbytes=0" >> /etc/supervisord.conf && \
    echo "stderr_logfile=/dev/stderr" >> /etc/supervisord.conf && \
    echo "stderr_logfile_maxbytes=0" >> /etc/supervisord.conf && \
    echo "" >> /etc/supervisord.conf && \
    echo "[program:sslh]" >> /etc/supervisord.conf && \
    echo "# Listen on 7860, forward SSH to 2222, HTTP to 8080" >> /etc/supervisord.conf && \
    echo "command=sslh -f -u root -p 0.0.0.0:7860 --ssh 127.0.0.1:2222 --http 127.0.0.1:8080" >> /etc/supervisord.conf && \
    echo "stdout_logfile=/dev/stdout" >> /etc/supervisord.conf && \
    echo "stdout_logfile_maxbytes=0" >> /etc/supervisord.conf && \
    echo "stderr_logfile=/dev/stderr" >> /etc/supervisord.conf && \
    echo "stderr_logfile_maxbytes=0" >> /etc/supervisord.conf

# Expose the HF App Port
EXPOSE 7860

# Start Supervisor (which starts the other two)
CMD ["supervisord", "-c", "/etc/supervisord.conf"]