Inicializando o projeto.
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Dockerfile.dockerfile
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Dockerfile.dockerfile
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FROM debian:bookworm-slim
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ENV DEBIAN_FRONTEND=noninteractive
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ENV CUPS_VERSION=2.4.12
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ENV TZ "America/Sao_Paulo"
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ENV USERNAME admin
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ENV PASSWORD password
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# 1) Instala dependências de build + runtime, incluindo CA para HTTPS
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RUN apt-get update && apt-get install -y --no-install-recommends \
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ca-certificates \
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git \
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build-essential autoconf automake libtool pkg-config \
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libssl-dev libgnutls28-dev \
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zlib1g zlib1g-dev \
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libavahi-client-dev \
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printer-driver-all \
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printer-driver-cups-pdf \
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printer-driver-foo2zjs \
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foomatic-db-compressed-ppds \
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openprinting-ppds \
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libreoffice \
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libreoffice-common \
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libnss-mdns \
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hpijs-ppds \
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file \
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hp-ppd \
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hplip \
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dos2unix \
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cups cups-client cups-filters cups-browsed \
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curl avahi-daemon dbus \
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iputils-ping \
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vim \
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&& apt-get clean && rm -rf /var/lib/apt/lists/*
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RUN cd /opt && \
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wget https://github.com/OpenPrinting/cups/releases/download/v${CUPS_VERSION}/cups-${CUPS_VERSION}-source.tar.gz && \
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tar -xzf cups-${CUPS_VERSION}-source.tar.gz && \
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cd cups-${CUPS_VERSION} && \
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./configure --prefix=/usr --sysconfdir=/etc --localstatedir=/var --with-rcdir=/etc/init.d && \
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make -j$(nproc) && \
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make install && \
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cd / && rm -rf /opt/*
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RUN sed -i 's/Listen localhost:631/Listen 0.0.0.0:631/' /etc/cups/cupsd.conf && \
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sed -i 's/Browsing Off/Browsing On/' /etc/cups/cupsd.conf && \
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sed -i 's/<Location \/>/<Location \/>\n Allow All/' /etc/cups/cupsd.conf && \
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sed -i 's/<Location \/admin>/<Location \/admin>\n Allow All\n Require user @SYSTEM/' /etc/cups/cupsd.conf && \
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sed -i 's/<Location \/admin\/conf>/<Location \/admin\/conf>\n Allow All/' /etc/cups/cupsd.conf && \
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echo "ServerAlias *" >> /etc/cups/cupsd.conf && \
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echo "DefaultEncryption Never" >> /etc/cups/cupsd.conf
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RUN echo 'application/vnd.openxmlformats-officedocument.wordprocessingml.document docx' >> /etc/cups/raw.types && \
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echo 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet xlsx' >> /etc/cups/raw.types
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RUN echo 'application/vnd.openxmlformats-officedocument.wordprocessingml.document application/pdf 100 doc2pdf' >> /etc/cups/raw.convs && \
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echo 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet application/pdf 100 doc2pdf' >> /etc/cups/raw.convs
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RUN cp -a /etc/cups /etc/cups.default
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# 4) Volumes para persistência de config, spool e logs
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VOLUME ["/etc/cups", "/var/spool/cups", "/var/log/cups"]
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# 5) Expõe a porta da interface web/admin do CUPS
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EXPOSE 631 5353/udp
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COPY doc2pdf.sh /usr/lib/cups/filter/doc2pdf
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RUN dos2unix /usr/lib/cups/filter/doc2pdf \
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&& chmod 755 /usr/lib/cups/filter/doc2pdf
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COPY entrypoint.sh /
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RUN chmod +x /entrypoint.sh
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CMD ["/entrypoint.sh"]
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# cups
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# Cups
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A Simple Docker cups with libreoffice filter to print docx/xlsx
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58
doc2pdf.sh
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doc2pdf.sh
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#!/bin/bash
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# /usr/lib/cups/filter/doc2pdf
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set -e
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JOB_ID="$1"
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USER="$2"
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TITLE="$3"
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COPIES="$4"
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OPTIONS="$5"
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FILE="$6"
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# Função para extrair extensão a partir do document-format (se existir)
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ext_from_options() {
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echo "$OPTIONS" \
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| sed -n 's/.*document-format=\([^ ,]*\).*/\1/p' \
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| awk -F/ '{print $2}' \
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| sed -e 's/+xml//g' -e 's/xlsx/spreadsheetml.sheet/' \
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-e 's/wordprocessingml.document/docx/' \
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-e 's/spreadsheetml.sheet/xlsx/'
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}
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# Se o CUPS passou o arquivo via stdin, ou se FILE não termina em .docx/.xlsx
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if [ "$FILE" = "-" ] || ! echo "$FILE" | grep -E '\.(docx|xlsx)$' >/dev/null; then
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# detecta extensão: primeiro tenta pelas OPTIONS
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EXT=$(ext_from_options)
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# se ainda vazio, usa file --mime-type
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if [ -z "$EXT" ]; then
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MIME=$(file --mime-type -b "$FILE")
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case "$MIME" in
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application/vnd.openxmlformats-officedocument.wordprocessingml.document) EXT=docx ;;
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application/vnd.openxmlformats-officedocument.spreadsheetml.sheet) EXT=xlsx ;;
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*) EXT="" ;;
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esac
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fi
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if [ -z "$EXT" ]; then
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echo "Não consegui determinar extensão para conversão (mime: $MIME, options: $OPTIONS)" >&2
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exit 1
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fi
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TMPFILE="/tmp/job-${JOB_ID}.$EXT"
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cat "${FILE:-/dev/stdin}" > "$TMPFILE"
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FILE="$TMPFILE"
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fi
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# Por fim, converte DOCX/XLSX válidos
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case "${FILE##*.}" in
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docx|xlsx)
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libreoffice --headless --convert-to pdf:"writer_pdf_Export" \
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--outdir /tmp "$FILE"
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PDF="/tmp/$(basename "${FILE%.*}.pdf")"
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cat "$PDF"
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;;
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*)
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echo "Formato não suportado: ${FILE##*.}" >&2
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exit 1
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;;
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esac
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18
docker-compose.yaml
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docker-compose.yaml
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---
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services:
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cups:
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image: grandow/cups:2.4.12-office
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container_name: cups
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restart: unless-stopped
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ulimits:
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nofile:
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soft: "65536"
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hard: "65536"
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ports:
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- "631:631"
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environment:
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- USERNAME=admin
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- PASSWORD=cups
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- TZ="America/Sao_Paulo"
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volumes:
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- "/srv/waprint/cups/:/etc/cups/"
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33
entrypoint.sh
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entrypoint.sh
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#!/bin/sh
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if [ $(grep -ci $USERNAME /etc/shadow) -eq 0 ]; then
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useradd -r -G lpadmin -M $USERNAME
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# add password
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echo $USERNAME:$PASSWORD | chpasswd
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# add tzdata
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ln -fs /usr/share/zoneinfo/$TZ /etc/localtime
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dpkg-reconfigure --frontend noninteractive tzdata
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fi
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# restore default cups config in case user does not have any
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if [ ! -f /etc/cups/cupsd.conf ]; then
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cp -p /etc/cups.default/cupsd.conf /etc/cups/
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cp -p /etc/cups.default/printers.conf /etc/cups/
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#cp -rpn /etc/cups.default/* /etc/cups/
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fi
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if [ -d /etc/cups.default/ppd ]; then
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mkdir -p /etc/cups/ppd
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cp -rp /etc/cups.default/ppd/* /etc/cups/ppd/
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fi
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# Inicia o tail dos logs em background
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tail -F /var/log/cups/access_log /var/log/cups/error_log &
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# Inicia o CUPS em foreground
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/usr/sbin/cupsd -f &
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CUPSD_PID=$!
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# Espera o CUPS morrer ou o tail encerrar
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wait $CUPSD_PID
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