求教这个 DockerFile 如何优化下镜像大小

FROM daocloud.io/library/ubuntu:18.04

ENV HOME /home
ENV DEBIAN_FRONTEND noninteractive
ENV INITRD No

RUN set -eux; \
    apt-get update; \
    apt-get install -y locales; \
    locale-gen en_US.utf8; \
    rm -rf /var/lib/apt/lists/*
ENV LANG en_US.utf8
ENV LANGUAGE en_US.utf8

RUN set -eux; \
    apt-get update; \
    apt-get install -y apt-file; \
    apt-file update; \
    apt-get install -y software-properties-common; \
    apt-get install -yq --no-install-recommends vim libboost-all-dev gcc-4.8; \
    add-apt-repository -y ppa:ondrej/php; \
    apt-get update -y; \
    apt-get install -y curl wget openssl php7.2 php7.2-bcmath php7.2-cli php7.2-cgi php7.2-common php7.2-dev php7.2-apcu php7.2-geoip php7.2-fpm php7.2-json php7.2-memcached php7.2-memcache php7.2-mysql php7.2-pgsql php7.2-mongo php7.2-sqlite php7.2-sybase php7.2-interbase php7.2-odbc php7.2-ldap php7.2-gmp php7.2-intl php7.2-imagick php7.2-gd php7.2-imap php7.2-curl php7.2-oauth php7.2-redis php7.2-enchant php7.2-xml php7.2-xmlrpc php7.2-tidy php7.2-recode php7.2-readline php7.2-zip php7.2-pspell php7.2-mbstring php7.2-swoole; \
    rm -rf /var/lib/apt/lists/*

# Tidy up
RUN set -eux; \
    apt-get -y autoremove; \
    apt-get clean; \
    apt-get autoclean; \
    rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*

RUN mkdir -p /usr/share/nginx/html && cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime

# Allow mounting files
VOLUME ["/usr/share/nginx/html"]
# Set the work directory
WORKDIR /usr/share/nginx/html
CMD ["php-fpm7.2", "-F"]
EXPOSE 9000

kestrelBright

2021-06-09 16:05:12 +08:00

@swulling 试过，没区别，还是一样大
```
RUN set -eux; \
apt-get update; \
apt-get install -y locales && apt-get clean; \
locale-gen en_US.utf8; \
apt-get update; \
apt-get install -y apt-file && apt-get clean; \
apt-file update; \
apt-get install -y software-properties-common && apt-get clean; \
apt-get install -yq --no-install-recommends vim libboost-all-dev gcc-4.8 && apt-get clean; \
add-apt-repository -y ppa:ondrej/php; \
apt-get update -y; \
apt-get install -y curl wget openssl php7.2 php7.2-bcmath php7.2-cli php7.2-cgi php7.2-common php7.2-dev php7.2-apcu php7.2-geoip php7.2-fpm php7.2-json php7.2-memcached php7.2-memcache php7.2-mysql php7.2-pgsql php7.2-mongo php7.2-sqlite php7.2-sybase php7.2-interbase php7.2-odbc php7.2-ldap php7.2-gmp php7.2-intl php7.2-imagick php7.2-gd php7.2-imap php7.2-curl php7.2-oauth php7.2-redis php7.2-enchant php7.2-xml php7.2-xmlrpc php7.2-tidy php7.2-recode php7.2-readline php7.2-zip php7.2-pspell php7.2-mbstring php7.2-swoole && apt-get clean; \
```

BeautifulSoap

2021-06-09 16:17:34 +08:00

@kestrelBright
如果你只是想用的话，直接 FROM php:7.2-alpine 就行了，没必要去关心怎么做到的

你如果是想知道该用什么办法把 php 的镜像体积减下来的话，可以去看 php 官方的 alpine 镜像的 Dockerfile 是怎么构建的就行了。php 官方的 alpine 镜像大小只有 20 多 MB 大小，只不过构建过程很复杂，不一定能学得来。。。。。

https://github.com/docker-library/php/tree/master/7.3/alpine3.13/fpm

kestrelBright

2021-06-09 16:20:57 +08:00

@mohuishou 不大明白怎么拷贝前一阶段的，是这样吗？
```
FROM daocloud.io/library/ubuntu:18.04 as php72

ENV HOME /home
ENV DEBIAN_FRONTEND noninteractive
ENV INITRD No
ENV LANG en_US.utf8
ENV LANGUAGE en_US.utf8

RUN set -eux; \
apt-get update; \
apt-get install -y locales; \
locale-gen en_US.utf8; \
apt-get update; \
apt-get install -y apt-file; \
apt-file update; \
apt-get install -y software-properties-common; \
apt-get install -yq --no-install-recommends vim libboost-all-dev gcc-4.8; \
add-apt-repository -y ppa:ondrej/php; \
apt-get update -y; \
apt-get install -y curl wget openssl php7.2 php7.2-bcmath php7.2-cli php7.2-cgi php7.2-common php7.2-dev php7.2-apcu php7.2-geoip php7.2-fpm php7.2-json php7.2-memcached php7.2-memcache php7.2-mysql php7.2-pgsql php7.2-mongo php7.2-sqlite php7.2-sybase php7.2-interbase php7.2-odbc php7.2-ldap php7.2-gmp php7.2-intl php7.2-imagick php7.2-gd php7.2-imap php7.2-curl php7.2-oauth php7.2-redis php7.2-enchant php7.2-xml php7.2-xmlrpc php7.2-tidy php7.2-recode php7.2-readline php7.2-zip php7.2-pspell php7.2-mbstring php7.2-swoole; \
apt-get -y autoremove; \
apt-get clean; \
apt-get autoclean; \
rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*; \
mkdir -p /usr/share/nginx/html && cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime

FROM daocloud.io/library/ubuntu:18.04
COPY --from=php72 /usr /usr

VOLUME ["/usr/share/nginx/html"]
WORKDIR /usr/share/nginx/html
CMD ["php-fpm7.2", "-F"]
EXPOSE 9000
```

THESDZ

2021-06-09 16:47:02 +08:00

build 阶段可以单独放一个 docker 镜像,然后从这个临时镜像复制
php 我不懂,找个 nodejs 的你看看

FROM greencloudcomputing/nodejs14 AS builder
WORKDIR /build
COPY ./ .
RUN cd /build && npm --registry https://registry.npm.taobao.org install && npm run build

FROM nginx:stable-alpine
RUN apk add --repository https://mirrors.aliyun.com/alpine/v3.4/main/ --update curl && rm -rf /var/cache/apk/*
COPY nginx.conf /etc/nginx/nginx.conf
COPY --from=builder /build/dist /usr/share/nginx/html/

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