Docker Compose

　 Compose是什么

　　Compose是一个定义和管理多容器的工具，也是一种容器编排工具，前身是Pig，使用Python语言编写。使用Compose配置文件描述多个容器应用的构架，比如使用什么镜像，数据卷，网络，映射端口等；然后用一条命令管理所有服务，比如启动，停止，重启等

　　系统为ubuntu18.04 切换root用户使用命令 sudo -i

　　安装（也可以github下载二进制包安装）

1 2	`sudo apt-get install python-pip` `sudo pip install docker-compose`

　　查看版本

1	`docker-compose` `--version`

　　安装docker

1	`apt install docker.io`

　　查看版本

1	`docker info`

　　docker-compose读取文件夹下面的yml文件

　　编辑文件docker-compose.yml

version: '3'
services:
  web:
    build: .
    ports:
      - "8888:80"

　　version：定义版本有1,2,3版本

services：定义服务

web：服务名是web

build：在本目录构建

ports：端口映射8888映射容器的80端口

　　编辑Dockerfile

FROM centos:6
MAINTAINER liuyueming
RUN yum install -y httpd php php-gd php-mysql
RUN echo "<?php phpinfo()?>" > /var/www/html/index.php
CMD ["/usr/sbin/httpd","-D","FOREGROUND"]
EXPOSE 80

　　PS:参数D要加- 否则启动失败

　　文件目录如下

　　构建

1	`docker-compose up`

　　构建后会生成名为php_web的镜像（镜像默认命名规则为文件夹_服务名）

　　完毕查看

1 2	`docker-compose ps` `docker ps`

　　web页面访问 http://ip:8888

　　一键配置LNMP环境

　　配置文件如下

　　docker-compose.yml

version: '3'
services:
  nginx:
    hostname: nginx
    build:
      context: ./nginx
      dockerfile: Dockerfile
    ports:
      - 80:80
    links:
      - php:php-cgi
    volumes:
      - ./wwwroot:/usr/local/nginx/html
 
  php:
    hostname: php
    build: ./php
    links:
      - mysql:mysql-db
    volumes:
      - ./wwwroot:/usr/local/nginx/html
 
  mysql:
    hostname: mysql
    image: mysql:5.6
    ports:
      - 3306:3306
    volumes:
      - ./mysql/conf:/etc/mysql/conf.d
      - ./mysql/data:/var/lib/mysql
    # command: --character-set-server=utf8
    environment:
      MYSQL_ROOT_PASSWORD: 123456
      MYSQL_DATABASE: wordpress
      MYSQL_USER: user
      MYSQL_PASSWORD: user123

　　mysql/conf/my.cnf

[mysqld]
user=mysql
port=3306
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
pid-file=/var/run/mysqld/mysql.pid
log_error=/var/log/mysql/error.log
character_set_server = utf8
max_connections=3600

　　nginx/Dockerfile

FROM centos:6
MAINTAINER liuyueming
RUN yum install -y gcc gcc-c++ make openssl-devel pcre-devel
ADD nginx-1.12.1.tar.gz /tmp
RUN cd /tmp/nginx-1.12.1 && ./configure --prefix=/usr/local/nginx && make -j 2 && make install
RUN rm -f /usr/local/nginx/conf/nginx.conf 
COPY nginx.conf /usr/local/nginx/conf
 
EXPOSE 80
CMD ["/usr/local/nginx/sbin/nginx", "-g", "daemon off;"]

　　nginx/nginx.conf

user  root; 
worker_processes  auto; 
 
error_log  logs/error.log  info;
 
pid        logs/nginx.pid; 
 
 
events {
    use epoll; 
}
 
http {
 
    include       mime.types;
    default_type  application/octet-stream;
 
    log_format  main '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';
 
    access_log logs/access.log main;
    sendfile        on;
    keepalive_timeout  65;
 
    server {
        listen 80;
        server_name localhost;
        root html;
        index index.html index.php;
 
        location ~ \.php$ {
            root html;
            fastcgi_pass php-cgi:9000;
            fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; 
            include fastcgi_params;
        }
    }
}

　　php/Dockerfile

FROM centos:6
MAINTAINER lizhenliang
RUN yum install -y gcc gcc-c++ gd-devel libxml2-devel libcurl-devel libjpeg-devel libpng-devel openssl-devel
ADD php-5.6.31.tar.gz /tmp/
RUN cd /tmp/php-5.6.31 && \
    ./configure --prefix=/usr/local/php \
    --with-config-file-path=/usr/local/php/etc \
    --with-mysql --with-mysqli \
    --with-openssl --with-zlib --with-curl --with-gd \
    --with-jpeg-dir --with-png-dir --with-iconv \
    --enable-fpm --enable-zip --enable-mbstring && \
    make -j 4 && make install && \
    cp /usr/local/php/etc/php-fpm.conf.default /usr/local/php/etc/php-fpm.conf && \
    sed -i "s/127.0.0.1/0.0.0.0/" /usr/local/php/etc/php-fpm.conf && \
    cp ./sapi/fpm/init.d.php-fpm /etc/init.d/php-fpm && \
    chmod +x /etc/init.d/php-fpm 
COPY php.ini /usr/local/php/etc
 
EXPOSE 9000
CMD /etc/init.d/php-fpm start && tail -F /var/log/messages

　　php/php.ini

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

[PHP]
engine = On
short_open_tag = Off
asp_tags = Off
precision = 14
output_buffering = 4096
zlib.output_compression = Off
implicit_flush = Off
unserialize_callback_func =
serialize_precision = 17
disable_functions =
disable_classes =
zend.enable_gc = On
expose_php = On
max_execution_time = 30
max_input_time = 60
memory_limit = 128M
error_reporting = E_ALL & ~E_DEPRECATED & ~E_STRICT
display_errors = Off
display_startup_errors = Off
log_errors = On
log_errors_max_len = 1024
ignore_repeated_errors = Off
ignore_repeated_source = Off
report_memleaks = On
track_errors = Off
html_errors = On
variables_order = "GPCS"
request_order = "GP"
register_argc_argv = Off
auto_globals_jit = On
post_max_size = 8M
auto_prepend_file =
auto_append_file =
default_mimetype = "text/html"
default_charset = "UTF-8"
doc_root =
user_dir =
enable_dl = Off
file_uploads = On
upload_max_filesize = 2M
max_file_uploads = 20
allow_url_fopen = On
allow_url_include = Off
default_socket_timeout = 60
[CLI Server]
cli_server.color = On
[Date]
date.timezone = Asia/Shanghai
[filter]
[iconv]
[intl]
[sqlite3]
[Pcre]
[Pdo]
[Pdo_mysql]
pdo_mysql.cache_size = 2000
pdo_mysql.default_socket=
[Phar]
[mail function]
SMTP = localhost
smtp_port = 25
mail.add_x_header = On
[SQL]
sql.safe_mode = Off
[ODBC]
odbc.allow_persistent = On
odbc.check_persistent = On
odbc.max_persistent = -1
odbc.max_links = -1
odbc.defaultlrl = 4096
odbc.defaultbinmode = 1
[Interbase]
ibase.allow_persistent = 1
ibase.max_persistent = -1
ibase.max_links = -1
ibase.timestampformat = "%Y-%m-%d %H:%M:%S"
ibase.dateformat = "%Y-%m-%d"
ibase.timeformat = "%H:%M:%S"
[MySQL]
mysql.allow_local_infile = On
mysql.allow_persistent = On
mysql.cache_size = 2000
mysql.max_persistent = -1
mysql.max_links = -1
mysql.default_port =
mysql.default_socket =
mysql.default_host =
mysql.default_user =
mysql.default_password =
mysql.connect_timeout = 60
mysql.trace_mode = Off
[MySQLi]
mysqli.max_persistent = -1
mysqli.allow_persistent = On
mysqli.max_links = -1
mysqli.cache_size = 2000
mysqli.default_port = 3306
mysqli.default_socket =
mysqli.default_host =
mysqli.default_user =
mysqli.default_pw =
mysqli.reconnect = Off
[mysqlnd]
mysqlnd.collect_statistics = On
mysqlnd.collect_memory_statistics = Off
[OCI8]
[PostgreSQL]
pgsql.allow_persistent = On
pgsql.auto_reset_persistent = Off
pgsql.max_persistent = -1
pgsql.max_links = -1
pgsql.ignore_notice = 0
pgsql.log_notice = 0
[Sybase-CT]
sybct.allow_persistent = On
sybct.max_persistent = -1
sybct.max_links = -1
sybct.min_server_severity = 10
sybct.min_client_severity = 10
[bcmath]
bcmath.scale = 0
[browscap]
[Session]
session.save_handler = files
session.use_strict_mode = 0
session.use_cookies = 1
session.use_only_cookies = 1
session.name = PHPSESSID
session.auto_start = 0
session.cookie_lifetime = 0
session.cookie_path = /
session.cookie_domain =
session.cookie_httponly =
session.serialize_handler = php
session.gc_probability = 1
session.gc_divisor = 1000
session.gc_maxlifetime = 1440
session.referer_check =
session.cache_limiter = nocache
session.cache_expire = 180
session.use_trans_sid = 0
session.hash_function = 0
session.hash_bits_per_character = 5
url_rewriter.tags = "a=href,area=href,frame=src,input=src,form=fakeentry"
[MSSQL]
mssql.allow_persistent = On
mssql.max_persistent = -1
mssql.max_links = -1
mssql.min_error_severity = 10
mssql.min_message_severity = 10
mssql.compatibility_mode = Off
mssql.secure_connection = Off
[Assertion]
[COM]
[mbstring]
[gd]
[exif]
[Tidy]
tidy.clean_output = Off
[soap]
soap.wsdl_cache_enabled=1
soap.wsdl_cache_dir="/tmp"
soap.wsdl_cache_ttl=86400
soap.wsdl_cache_limit = 5
[sysvshm]
[ldap]
ldap.max_links = -1
[mcrypt]
[dba]
[opcache]
[curl]
[openssl]