How to build php7 with docker custom image

First, perform a simple Docker installation.

To customize the image, we need to select a base image to build our own image: in fact, to put it bluntly, it is to execute the commands to install various programs in a container with a basic definition to generate the so-called Dockerfile file. In this case, the first step is to find a local image as the base image to operate:

1

As shown in the figure above, let's build a Dockerfile based on centos image.

2 In the second step, we need to build a directory to store the Dockerfile file

Create a docker_demo directory under root to store the Dockerfile file and the program files that need to be installed. Because I want to build a custom PHP environment, let's make a PHP7 compressed package.

wget http://am1.php.net/get/php-7.0.0.tar.gz/from/this/mirror 

Then change the name

Now we have both PHP and nginx. As for COMPOSER, you can operate it yourself after PHP is successfully installed~~~

The next step is to write the Dockerfile file. Before that, let’s take a brief look at the keyword format of Dockerfile:

FROM represents which image is based on

RUN installation software use

MAINTAINER The creator of the image

CMD is the command executed when the container starts. However, there can only be one CMD command in a Dockerfile. If there are multiple CMD commands, only the last one will be executed.

ENTRYPOINT The command executed when the container starts. However, there can only be one CMD command in a Dockerfile. If there are multiple commands, only the last one will be executed.

USER The user that runs the container

EXPOSE The port exposed by the service inside the container. The host also needs to do port mapping when running the container:

docker run -d -p 80:8080 centos6xxx

The above command maps port 8080 inside the container to port 80 on the host.

ENV is used to set environment variables

ADD copies files on the host to the corresponding path in the container. All files and folders copied to the container have permissions of 0755, and uid and gid are 0. If the file is in a recognizable compressed format, docker will help decompress it. ADD is only run once when building the image, and will not be reloaded when running the container later.

Examples include:

ADD nginx-1.12.2.tar.gz /usr/local/src

VOLUME can mount local folders or folders of other containers into the container.

WORKDIR Switch directory to use (equivalent to cd directory)

The commands specified by ONBUILD are not executed when building the image, but are executed in its sub-images.

After learning the basic Dockerfile commands, let's try to build this environment.

docker pull centos

First download a base image. If you have this step, please ignore it. Here is my Dockerfile

# base image
# Base image FROM docker.io/centos

# MAINTAINERWritten by MAINTAINER [email protected]

# put nginx-1.12.2.tar.gz into /usr/local/src and unpack nginx Come on, put both nginx and PHP into the /usr/local/src directory of the base image in advance to facilitate compilation and installation ADD nginx-1.12.2.tar.gz /usr/local/src
ADD php-7.0.0.tar.gz /usr/local/src

# running required command Install a series of messy dependency packages of Nginx RUN yum install -y gcc gcc-c++ glibc make autoconf openssl openssl-devel
RUN yum install -y libxslt-devel -y gd gd-devel GeoIP GeoIP-devel pcre pcre-devel
RUN useradd -M -s /sbin/nologin nginx

# change dir to /usr/local/src/nginx-1.12.2
WORKDIR /usr/local/src/nginx-1.12.2

# execute command to compile nginx
RUN ./configure --user=nginx --group=nginx --prefix=/usr/local/nginx --with-file-aio --with-http_ssl_module --with-http_realip_module --with-http_addition_module --with-http_xslt_module --with-http_image_filter_module --with-http_geoip_module --with-http_sub_module --with-http_dav_module --with-http_flv_module --with-http_mp4_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_auth_request_module --with-http_random_index_module --with-http_secure_link_module --with-http_degradation_module --with-http_stub_status_module && make && make install

#Install a local Mysql first
RUN yum install -y wget
RUN wget http://repo.mysql.com/mysql57-community-release-el7-8.noarch.rpm
RUN rpm -ivh mysql57-community-release-el7-8.noarch.rpm
RUN yum install -y mysql-server


#At this point, start installing PHP. As usual, start installing some compiled dependency packages. RUN yum -y install epel-release
RUN yum -y install libmcrypt-devel
RUN yum -y install libxml2 libxml2-devel openssl openssl-devel curl-devel libjpeg-devel libpng-devel freetype-devel
WORKDIR /usr/local/src/php-7.0.0
#编译安装RUN ./configure --prefix=/usr/local/php7 --with-config-file-path=/usr/local/php7/etc --with-config-file-scan-dir=/usr/local/php7/etc/php.d --with-mcrypt=/usr/include --enable-mysqlnd --with-mysqli --with-pdo-mysql --enable-fpm --with-fpm-user=nginx --with-fpm-group=nginx --with-gd --with-iconv --with-zlib --enable-xml --enable-shmop --enable-sysvsem --enable-inline-optimization --enable-mbregex --enable-mbstring --enable-ftp --enable-gd-native-ttf --with-openssl --enable-pcntl --enable-sockets --with-xmlrpc --enable-zip --enable-soap --without-pear --with-gettext --enable-session --with-curl --with-jpeg-dir --with-freetype-dir --enable-opcache && make && make install

RUN cp php.ini-production /usr/local/php7/etc/php.ini

After successfully building the Dockerfile file, docker build is used to build it.

docker build -t centos_lnmp:v1 .

The trailing . represents the relative path to the current directory. You can also use an absolute path.

Then there is the long wait

Until the image is successfully built, we start again

docker images 

We see that the image has been built successfully (there is a slight chance that the build will fail, in which case just delete the container and the image and rebuild it), then run

docker run -dt -p 80:80 centos_lnmp:v1 

After success, you can enter the container and configure nginx php.

The above is the full content of this article. I hope it will be helpful for everyone’s study. I also hope that everyone will support 123WORDPRESS.COM.