找不到 Docker 命令中 Alpine 下的 PHP7

Question

When I run an interactive shell for the container there definitely is a PHP binary:

sudo docker run -t -i neekoy/php7 /bin/sh

/ # which php-fpm7

/usr/sbin/php-fpm7

But when I run that same container I get the following:

sudo docker run neekoy/php7

/bin/sh: [php-fpm7]: not found

This is my Dockerfile:

FROM alpine:latest

RUN apk update

RUN apk add php7-fpm php7-mcrypt php7-soap php7-openssl php7-gmp php7-pdo_odbc php7-json php7-dom php7-pdo php7-zip php7-mysqli php7-sqlite3 php7-apcu php7-pdo_pgsql php7-bcmath php7-gd php7-odbc php7-pdo_mysql php7-pdo_sqlite php7-gettext php7-xmlreader php7-xmlrpc php7-bz2 php7-iconv php7-pdo_dblib php7-curl php7-ctype

EXPOSE 9000

CMD ['php-fpm7']

I've stripped out the config changes because they're irrelevant.

System info:

Container:

cat /etc/ release

3.7.0

NAME="Alpine Linux"

My PC:

docker -v

Docker version 17.12.1-ce, build 7390fc6

Answer 1

The problem is that single quotes ' do not work - according to the documentation the argument is parsed as JSON-array. So the correct "CMD"-line would look like this:

CMD ["php-fpm7", "-F"]