php - Docker PHP7 CLI Debian Buster如何安装软件包php-imagick？

Question

我有Debian Buster的PHP-CLI Docker image，想安装php-imagick软件包，但使用以下命令:

Dockerfile:

RUN apt-get install -y php-imagick

我收到一个错误:

Package php-imagick is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source

E: Package 'php-imagick' has no installation candidate

运行之前:

RUN apt-get update -y && apt-get upgrade -y

没有帮助。

为什么没有php-imagick的候选软件包？
如何为此PHP Docker image安装和启用imagick扩展？

Dockerfile复制问题:

FROM php:7.3-buster

RUN apt-get update -y && apt-get upgrade -y
RUN apt-get install -y php-imagick

构建命令

docker build --tag testimage .

Answer 1

除非您有充分的理由不这样做，否则使用https://deb.sury.org/中的软件包可能是一个好主意。以下内容似乎起作用:

FROM debian:buster-slim

USER root

# Get Debian up-to-date
RUN apt-get update -qq \
    && DEBIAN_FRONTEND=noninteractive apt-get install -y git \
    mariadb-client wget curl \
    ca-certificates lsb-release apt-transport-https gnupg bsdmainutils

RUN echo "deb https://packages.sury.org/php/ $(lsb_release -sc) main" | tee -a /etc/apt/sources.list.d/php.list \
    && curl https://packages.sury.org/php/apt.gpg | apt-key add - \
    && apt-get update -qq \
    && DEBIAN_FRONTEND=noninteractive apt-get install -y php7.3 php7.3-common php7.3-cli \
    php7.3-mysql php7.3-curl php7.3-xml php7.3-mbstring \
    php7.3-intl php7.3-redis php7.3-zip \
    php7.3-imagick supervisor