php - 如何从另一个容器中使用 pdftk

Question

我正在与码头工人斗争。

我从https://github.com/dunglas/symfony-docker构建了我的 symfony 容器。

该应用程序功能齐全并按预期工作。

我现在正在尝试使用 pdftk 的“填写表单”功能。所以我认为最好的办法是在 PHP-fpm 容器上安装 pdftk。这不起作用，因为它是 alpin 版本，我在 apk 中找不到包。

所以我决定只为 pdftk 二进制文件运行另一个容器。

该软件包现在已正确安装但在另一个容器上。我不知道 PHP-fpm 应该如何从另一个容器调用 pdftk。

下面是 Dockerfile 和 docker-compose 文件。

但我想我可能误解了 Docker 应该如何工作。

如果有人可以为那些将不胜感激的人带来一些启示。

Dockerfile

# the different stages of this Dockerfile are meant to be built into separate images
# https://docs.docker.com/develop/develop-images/multistage-build/#stop-at-a-specific-build-stage
# https://docs.docker.com/compose/compose-file/#target


# https://docs.docker.com/engine/reference/builder/#understand-how-arg-and-from-interact
ARG PHP_VERSION=8.0
ARG CADDY_VERSION=2

# "php" stage
FROM php:${PHP_VERSION}-fpm-alpine AS symfony_php

# persistent / runtime deps
RUN apk add --no-cache \
        acl \
        fcgi \
        file \
        gettext \
        git \
        gnu-libiconv \
        jq \
        nano \
        bash \
    ;

# install gnu-libiconv and set LD_PRELOAD env to make iconv work fully on Alpine image.
# see https://github.com/docker-library/php/issues/240#issuecomment-763112749
ENV LD_PRELOAD /usr/lib/preloadable_libiconv.so

ARG APCU_VERSION=5.1.20
RUN set -eux; \
    apk add --no-cache --virtual .build-deps \
        $PHPIZE_DEPS \
        icu-dev \
        libzip-dev \
        zlib-dev \
    ; \
    \
    docker-php-ext-configure zip; \
    docker-php-ext-install -j$(nproc) \
        intl \
        zip \
    ; \
    pecl install \
        apcu-${APCU_VERSION} \
    ; \
    pecl clear-cache; \
    docker-php-ext-enable \
        apcu \
        opcache \
    ; \
    \
    runDeps="$( \
        scanelf --needed --nobanner --format '%n#p' --recursive /usr/local/lib/php/extensions \
            | tr ',' '\n' \
            | sort -u \
            | awk 'system("[ -e /usr/local/lib/" $1 " ]") == 0 { next } { print "so:" $1 }' \
    )"; \
    apk add --no-cache --virtual .phpexts-rundeps $runDeps; \
    \
    apk del .build-deps

COPY docker/php/docker-healthcheck.sh /usr/local/bin/docker-healthcheck
RUN chmod +x /usr/local/bin/docker-healthcheck

HEALTHCHECK --interval=10s --timeout=3s --retries=3 CMD ["docker-healthcheck"]

RUN ln -s $PHP_INI_DIR/php.ini-production $PHP_INI_DIR/php.ini
COPY docker/php/conf.d/symfony.prod.ini $PHP_INI_DIR/conf.d/symfony.ini

COPY docker/php/php-fpm.d/zz-docker.conf /usr/local/etc/php-fpm.d/zz-docker.conf

COPY docker/php/docker-entrypoint.sh /usr/local/bin/docker-entrypoint
RUN chmod +x /usr/local/bin/docker-entrypoint

VOLUME /var/run/php

COPY --from=composer:latest /usr/bin/composer /usr/bin/composer

# https://getcomposer.org/doc/03-cli.md#composer-allow-superuser
ENV COMPOSER_ALLOW_SUPERUSER=1

ENV PATH="${PATH}:/root/.composer/vendor/bin"

WORKDIR /srv/app

# Allow to use development versions of Symfony
ARG STABILITY="stable"
ENV STABILITY ${STABILITY:-stable}

# Allow to select skeleton version
ARG SYMFONY_VERSION=""

# Download the Symfony skeleton and leverage Docker cache layers
RUN composer create-project "symfony/skeleton ${SYMFONY_VERSION}" . --stability=$STABILITY --prefer-dist --no-dev --no-progress --no-interaction; \
    composer clear-cache

RUN wget https://get.symfony.com/cli/installer -O - | bash
###> recipes ###
###> doctrine/doctrine-bundle ###
RUN apk add --no-cache --virtual .pgsql-deps postgresql-dev; \
    docker-php-ext-install -j$(nproc) pdo_pgsql; \
    apk add --no-cache --virtual .pgsql-rundeps so:libpq.so.5; \
    apk del .pgsql-deps
###< doctrine/doctrine-bundle ###
###< recipes ###

RUN wget https://get.symfony.com/cli/installer -O - | bash ; mv /root/.symfony/bin/symfony /usr/local/bin/symfony;

COPY . .

RUN set -eux; \
    mkdir -p var/cache var/log; \
    composer install --prefer-dist --no-dev --no-progress --no-scripts --no-interaction; \
    composer dump-autoload --classmap-authoritative --no-dev; \
    composer symfony:dump-env prod; \
    composer run-script --no-dev post-install-cmd; \
    chmod +x bin/console; sync
VOLUME /srv/app/var

ENTRYPOINT ["docker-entrypoint"]
CMD ["php-fpm"]

FROM caddy:${CADDY_VERSION}-builder-alpine AS symfony_caddy_builder

RUN xcaddy build \
    --with github.com/dunglas/mercure \
    --with github.com/dunglas/mercure/caddy \
    --with github.com/dunglas/vulcain \
    --with github.com/dunglas/vulcain/caddy

FROM caddy:${CADDY_VERSION} AS symfony_caddy

WORKDIR /srv/app

COPY --from=dunglas/mercure:v0.11 /srv/public /srv/mercure-assets/
COPY --from=symfony_caddy_builder /usr/bin/caddy /usr/bin/caddy
COPY --from=symfony_php /srv/app/public public/
COPY docker/caddy/Caddyfile /etc/caddy/Caddyfile



FROM ubuntu:xenial

MAINTAINER Matthias Nüßler <[e-mail]>

ENV PDFTK_VERSION 2.02

# The directory containing the PDF files to be processed is expected to be mounted here
# as a docker volume when running the container.

RUN mkdir /work
WORKDIR /work
VOLUME ["/work"]

RUN apt-get update && \
    apt-get install -y --no-install-recommends unzip build-essential gcj-jdk && \
    apt-get clean

ADD https://www.pdflabs.com/tools/pdftk-the-pdf-toolkit/pdftk-${PDFTK_VERSION}-src.zip /tmp/
RUN unzip /tmp/pdftk-${PDFTK_VERSION}-src.zip -d /tmp && \
    sed -i 's/VERSUFF=-4.6/VERSUFF=-5/g' /tmp/pdftk-${PDFTK_VERSION}-dist/pdftk/Makefile.Debian && \
    cd /tmp/pdftk-${PDFTK_VERSION}-dist/pdftk && \
    make -f Makefile.Debian && \
    make -f Makefile.Debian install && \
    rm -Rf /tmp/pdftk-*

ENTRYPOINT ["/usr/local/bin/pdftk"]

码头工人-compose.yml

version: "3.4"

services:
  php:
    build:
      context: .
      target: symfony_php
      args:
        SYMFONY_VERSION: ${SYMFONY_VERSION:-}
        STABILITY: ${STABILITY:-stable}
    restart: unless-stopped
    volumes:
      - php_socket:/var/run/php
    healthcheck:
      interval: 10s
      timeout: 3s
      retries: 3
      start_period: 30s
    environment:
      # Run "composer require symfony/orm-pack" to install and configure Doctrine ORM
      DATABASE_URL: postgresql://${POSTGRES_USER:-main}:${POSTGRES_PASSWORD:-main}@database:5432/${POSTGRES_DB:-main}?serverVersion=${POSTGRES_VERSION:-13}
      # Run "composer require symfony/mercure-bundle" to install and configure the Mercure integration
      MERCURE_PUBLISH_URL: ${MERCURE_URL:-http://caddy/.well-known/mercure}
      SYMFONY_VERSION:

  caddy:
    build:
      context: .
      target: symfony_caddy
    depends_on:
      - php
    environment:
      SERVER_NAME: ${SERVER_NAME:-localhost, caddy:80}
      MERCURE_PUBLISHER_JWT_KEY: ${MERCURE_PUBLISHER_JWT_KEY:-!ChangeMe!}
      MERCURE_SUBSCRIBER_JWT_KEY: ${MERCURE_SUBSCRIBER_JWT_KEY:-!ChangeMe!}
    restart: unless-stopped
    volumes:
      - php_socket:/var/run/php
      - caddy_data:/data
      - caddy_config:/config
    ports:
      # HTTP
      - target: 80
        published: 80
        protocol: tcp
      # HTTPS
      - target: 443
        published: 443
        protocol: tcp
      # HTTP/3
      - target: 443
        published: 443
        protocol: udp
#
#  pdftk:
#    build:
#      context: .
#      target: symfony_pdftk
#    volumes:
#      - pdftk_work:/work
#    tty: true

###> doctrine/doctrine-bundle ###
  database:
    image: postgres:${POSTGRES_VERSION:-13}-alpine
    environment:
      POSTGRES_DB: ${POSTGRES_DB:-app}
      # You should definitely change the password in production
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-main}
      POSTGRES_USER: ${POSTGRES_USER:-main}
    volumes:
      - db-data:/var/lib/postgresql/data:rw
      # You may use a bind-mounted host directory instead, so that it is harder to accidentally remove the volume and lose all your data!
      # - ./docker/db/data:/var/lib/postgresql/data:rw
###< doctrine/doctrine-bundle ###

volumes:
  php_socket:
  caddy_data:
  caddy_config:
  pdftk_work:

###> doctrine/doctrine-bundle ###
  db-data:
###< doctrine/doctrine-bundle ###

标签： phpdockersymfonydocker-composepdftk