3x-ui/Dockerfile

# ========================================================
# Stage: Builder
# ========================================================
FROM golang:1.24-alpine AS builder
WORKDIR /app
ARG TARGETARCH

RUN apk --no-cache --update add \
  build-base \
  gcc \
  wget \
  unzip \
  bash

COPY . .

ENV CGO_ENABLED=1
ENV CGO_CFLAGS="-D_LARGEFILE64_SOURCE"
RUN go build -ldflags "-w -s" -o build/x-ui main.go
RUN ./DockerInit.sh "$TARGETARCH"

# ========================================================
# Stage: Final Image of 3x-ui
# ========================================================
FROM alpine
ENV TZ=Asia/Tehran
WORKDIR /app

RUN apk add --no-cache --update \
  ca-certificates \
  tzdata \
  fail2ban \
  bash

# Copy only required build artifacts from builder stage
COPY --from=builder /app/build /app/
COPY --from=builder /app/DockerEntrypoint.sh /app/
COPY --from=builder /app/x-ui.sh /usr/bin/x-ui

# Configure fail2ban
RUN rm -f /etc/fail2ban/jail.d/alpine-ssh.conf \
  && cp /etc/fail2ban/jail.conf /etc/fail2ban/jail.local \
  && sed -i "s/^\[ssh\]$/&\nenabled = false/" /etc/fail2ban/jail.local \
  && sed -i "s/^\[sshd\]$/&\nenabled = false/" /etc/fail2ban/jail.local \
  && sed -i "s/#allowipv6 = auto/allowipv6 = auto/g" /etc/fail2ban/fail2ban.conf

# Make scripts executable
RUN chmod +x \
  /app/DockerEntrypoint.sh \
  /app/x-ui \
  /usr/bin/x-ui

# Enable fail2ban via environment variable (can be overridden)
ENV XUI_ENABLE_FAIL2BAN="true"

# Define volume for persistent configuration
VOLUME [ "/etc/x-ui" ]

# Default command when container starts
CMD [ "./x-ui" ]

# Custom entrypoint to initialize runtime environment
ENTRYPOINT [ "/app/DockerEntrypoint.sh" ]