# syntax=docker/dockerfile:1
# =============================================================================
# logcorrelator - Dockerfile de build et packaging RPM multi-distros
# =============================================================================

# =============================================================================
# Stage 1: Builder - Compilation du binaire Go
# =============================================================================
FROM golang:1.21 AS builder

WORKDIR /build

# Install dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    git \
    && rm -rf /var/lib/apt/lists/*

# Copy go mod files
COPY go.mod go.sum ./
RUN go mod download

# Copy source code
COPY . .

# Build binary for Linux
ARG VERSION=1.0.0
RUN mkdir -p dist && \
    CGO_ENABLED=0 GOOS=linux GOARCH=amd64 \
    go build -ldflags="-w -s" \
    -o dist/logcorrelator \
    ./cmd/logcorrelator

# =============================================================================
# Stage 2: RPM Package builder for Rocky Linux 8
# =============================================================================
FROM rockylinux:8 AS rpm-rocky8-builder

WORKDIR /package

# Install RPM build tools and fpm
RUN dnf install -y epel-release && \
    dnf install -y ruby rubygems ruby-devel rpm-build gcc make && \
    gem install fpm -v 1.16.0 --no-document && \
    dnf clean all

# Copy binary from builder
COPY --from=builder /build/dist/logcorrelator /tmp/pkgroot/usr/bin/logcorrelator
COPY --from=builder /build/config.example.yml /tmp/pkgroot/etc/logcorrelator/logcorrelator.yml
COPY --from=builder /build/config.example.yml /tmp/pkgroot/usr/share/logcorrelator/logcorrelator.yml.example
COPY --from=builder /build/logcorrelator.service /tmp/pkgroot/etc/systemd/system/logcorrelator.service
COPY packaging/rpm/post /tmp/scripts/post
COPY packaging/rpm/preun /tmp/scripts/preun
COPY packaging/rpm/postun /tmp/scripts/postun

# Create directories and set permissions
RUN mkdir -p /tmp/pkgroot/var/log/logcorrelator && \
    mkdir -p /tmp/pkgroot/var/run/logcorrelator && \
    mkdir -p /tmp/pkgroot/var/lib/logcorrelator && \
    chmod 755 /tmp/pkgroot/usr/bin/logcorrelator && \
    chmod 640 /tmp/pkgroot/etc/logcorrelator/logcorrelator.yml && \
    chmod 640 /tmp/pkgroot/usr/share/logcorrelator/logcorrelator.yml.example && \
    chmod 644 /tmp/pkgroot/etc/systemd/system/logcorrelator.service && \
    chmod 755 /tmp/scripts/* && \
    chmod 755 /tmp/pkgroot/var/log/logcorrelator && \
    chmod 755 /tmp/pkgroot/var/run/logcorrelator

# Build RPM for Rocky Linux 8
ARG VERSION=1.0.0
RUN mkdir -p /packages/rpm/rocky8 && \
    fpm -s dir -t rpm \
    -n logcorrelator \
    -v "${VERSION}" \
    -C /tmp/pkgroot \
    --architecture "x86_64" \
    --rpm-os linux \
    --description "Log correlation service for HTTP and network events" \
    --url "https://github.com/logcorrelator/logcorrelator" \
    --license "MIT" \
    --vendor "logcorrelator <dev@example.com>" \
    --rpm-dist el8 \
    --depends "systemd" \
    --after-install /tmp/scripts/post \
    --before-remove /tmp/scripts/preun \
    --after-remove /tmp/scripts/postun \
    -p /packages/rpm/rocky8/logcorrelator-${VERSION}-1.el8.x86_64.rpm \
    usr/bin/logcorrelator \
    etc/logcorrelator/logcorrelator.yml \
    usr/share/logcorrelator/logcorrelator.yml.example \
    var/log/logcorrelator \
    var/run/logcorrelator \
    etc/systemd/system/logcorrelator.service

# =============================================================================
# Stage 3: RPM Package builder for Rocky Linux 9
# =============================================================================
FROM rockylinux:9 AS rpm-rocky9-builder

WORKDIR /package

# Install RPM build tools and fpm
RUN dnf install -y epel-release && \
    dnf install -y ruby rubygems ruby-devel rpm-build gcc make && \
    gem install fpm -v 1.16.0 --no-document && \
    dnf clean all

# Copy binary from builder
COPY --from=builder /build/dist/logcorrelator /tmp/pkgroot/usr/bin/logcorrelator
COPY --from=builder /build/config.example.yml /tmp/pkgroot/etc/logcorrelator/logcorrelator.yml
COPY --from=builder /build/config.example.yml /tmp/pkgroot/usr/share/logcorrelator/logcorrelator.yml.example
COPY --from=builder /build/logcorrelator.service /tmp/pkgroot/etc/systemd/system/logcorrelator.service
COPY packaging/rpm/post /tmp/scripts/post
COPY packaging/rpm/preun /tmp/scripts/preun
COPY packaging/rpm/postun /tmp/scripts/postun

# Create directories and set permissions
RUN mkdir -p /tmp/pkgroot/var/log/logcorrelator && \
    mkdir -p /tmp/pkgroot/var/run/logcorrelator && \
    mkdir -p /tmp/pkgroot/var/lib/logcorrelator && \
    chmod 755 /tmp/pkgroot/usr/bin/logcorrelator && \
    chmod 640 /tmp/pkgroot/etc/logcorrelator/logcorrelator.yml && \
    chmod 640 /tmp/pkgroot/usr/share/logcorrelator/logcorrelator.yml.example && \
    chmod 644 /tmp/pkgroot/etc/systemd/system/logcorrelator.service && \
    chmod 755 /tmp/scripts/* && \
    chmod 755 /tmp/pkgroot/var/log/logcorrelator && \
    chmod 755 /tmp/pkgroot/var/run/logcorrelator

# Build RPM for Rocky Linux 9
ARG VERSION=1.0.0
RUN mkdir -p /packages/rpm/rocky9 && \
    fpm -s dir -t rpm \
    -n logcorrelator \
    -v "${VERSION}" \
    -C /tmp/pkgroot \
    --architecture "x86_64" \
    --rpm-os linux \
    --description "Log correlation service for HTTP and network events" \
    --url "https://github.com/logcorrelator/logcorrelator" \
    --license "MIT" \
    --vendor "logcorrelator <dev@example.com>" \
    --rpm-dist el9 \
    --depends "systemd" \
    --after-install /tmp/scripts/post \
    --before-remove /tmp/scripts/preun \
    --after-remove /tmp/scripts/postun \
    -p /packages/rpm/rocky9/logcorrelator-${VERSION}-1.el9.x86_64.rpm \
    usr/bin/logcorrelator \
    etc/logcorrelator/logcorrelator.yml \
    usr/share/logcorrelator/logcorrelator.yml.example \
    var/log/logcorrelator \
    var/run/logcorrelator \
    etc/systemd/system/logcorrelator.service

# =============================================================================
# Stage 4: Output - Image finale avec les packages RPM
# =============================================================================
FROM alpine:latest AS output

WORKDIR /packages
COPY --from=rpm-rocky8-builder /packages/rpm/rocky8/*.rpm /packages/rpm/rocky8/
COPY --from=rpm-rocky9-builder /packages/rpm/rocky9/*.rpm /packages/rpm/rocky9/

CMD ["sh", "-c", "echo '=== RPM Rocky Linux 8 ===' && ls -la /packages/rpm/rocky8/ && echo '' && echo '=== RPM Rocky Linux 9 ===' && ls -la /packages/rpm/rocky9/'"]