我要评论一、无优化构建镜像
mkdir /mnt/nginx vim dockerfile from centos:7 run yum install -y gcc pcre pcre-devel devel zlib-devel make add nginx-1.22.0.tar.gz /mnt/nginx workdir /mnt/nginx/nginx-1.22.0 #关闭debug日志 run sed -i 's/cflags="$cflags -g"/#cflags="$cflags -g"/g' auto/cc/gcc run ./configure --prefix=/usr/local/nginx run make run make install expose 80 volume ["/usr/local/nginx/html"] cmd ["/usr/local/nginx/sbin/nginx","-g","daemon off;"]
二、不需要输出的指令丢入/dev/null
from centos:7 run yum install -y gcc pcre pcre-devel devel zlib-devel make &> /dev/null && yum clean all add nginx-1.22.0.tar.gz /mnt/nginx workdir /mnt/nginx/nginx-1.22.0 run sed -i 's/cflags="$cflags -g"/#cflags="$cflags -g"/g' auto/cc/gcc run ./configure --prefix=/usr/local/nginx &> /dev/null run make &> /dev/null run make install &> /dev/null run rm -rf /mnt/nginx/nginx-1.22.0 expose 80 volume ["/usr/local/nginx/html"] cmd ["/usr/local/nginx/sbin/nginx""-g","daemon off;"]
三、减少run构建
from centos:7 add nginx-1.22.0.tar.gz /mnt/nginx workdir /mnt/nginx/nginx-1.22.0 run yum install -y gcc pcre pcre-devel devel zlib-devel make &> /dev/null && \ yum clean all && \ sed -i 's/cflags="$cflags -g"/#cflags="$cflags -g"/g' auto/cc/gcc && \ ./configure --prefix=/usr/local/nginx &> /dev/null && \ make &> /dev/null && make install &> /dev/null &&\ rm -rf /mnt/nginx/nginx-1.22.0 expose 80 volume ["/usr/local/nginx/html"] cmd ["/usr/local/nginx/sbin/nginx","-g","daemon off;"]
docker build -t nginx:v3 . 构建镜像
docker images查看镜像
四、多阶段构建
from centos:7 as build add nginx-1.22.0.tar.gz /mnt/nginx workdir /mnt/nginx/nginx-1.22.0 run yum install -y gcc pcre pcre-devel devel zlib-devel make &> /dev/null && \ yum clean all &&\ sed -i 's/cflags="$cflags -g"/#cflags="$cflags -g"/g' auto/cc/gcc && \ ./configure --prefix=/usr/local/nginx &> /dev/null && \ make &>/dev/null && \ make install &>/dev/null && \ rm -rf /mnt/nginx/nginx-1.22.0 from centos:7 expose 80 volume ["/usr/local/nginx/html"] copy --from=build /usr/local/nginx /usr/local/nginx cmd ["/usr/local/nginx/sbin/nginx","-g","daemon off;"]
docker build -t nginx:v4 . 构建镜像 docker images查看镜像
五、使用更为轻量级的linux发行版本
debian
alpine
apt add
sandbox
busybox
#下载debian压缩包 wget http://download.openvz.org/template/precreated/debian-7.0-x86-minimal.tar.gz docker import debian-7.0-x86-minimal.tar.gz -- debian:v1 生成镜像 docker images 查看
总结
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