为什么在Docker容器内不能执行netstat

为什么在Docker容器内不能执行netstat

FROM debian:jessie

安装ssh服务Install packagesRUN apt-get update && \
apt-get -y install openssh-server pwgen && \
mkdir -p /var/run/sshd && \
sed -i "s/UsePrivilegeSeparation.*/UsePrivilegeSeparation no/g" /etc/ssh/sshd_config && \
sed -i "s/PermitRootLogin without-password/PermitRootLogin yes/g" /etc/ssh/sshd_config

ADD set_root_pw.sh /set_root_pw.sh
ADD run.sh /run.sh
RUN chmod +x /*.sh

ENV AUTHORIZED_KEYS **None**

安装相关工具RUN apt-get update && apt-get install net-tools
RUN apt-get update && apt-get install vimpersistent / runtime depsRUN apt-get update && apt-get install -y ca-certificates curl librecode0 libsqlite3-0 libxml2 --no-install-recommends && rm -r /var/lib/apt/lists/*
phpize depsRUN apt-get update && apt-get install -y autoconf file g++ gcc libc-dev make pkg-config re2c --no-install-recommends && rm -r /var/lib/apt/lists/*

ENV PHP_INI_DIR /usr/local/etc/php
RUN mkdir -p $PHP_INI_DIR/conf.d

####
ENV PHP_EXTRA_CONFIGURE_ARGS --enable-fpm --with-fpm-user=www-data --with-fpm-group=www-data
####

ENV GPG_KEYS 0BD78B5F97500D450838F95DFE857D9A90D90EC1 6E4F6AB321FDC07F2C332E3AC2BF0BC433CFC8B3
RUN set -xe \
&& for key in $GPG_KEYS; do \
gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$key"; \
done

ENV PHP_VERSION 5.6.15
--enable-mysqlnd is included below because it's harder to compile after the fact the extensions are (since it's a plugin for several extensions, not an extension in itself)RUN buildDeps=" \
$PHP_EXTRA_BUILD_DEPS \
libcurl4-openssl-dev \
libreadline6-dev \
librecode-dev \
libsqlite3-dev \
libssl-dev \
libxml2-dev \
xz-utils \
" \