通过docker-composer启动容器nginx，并完成spring.boot的web站点端口转发

2022-11-20 16:06:31

前面已经讲过2篇基于docker的mysql、redis容器编排并启动。这次将练习下nginx的docker方式的部署，以及通过nginx去代理宿主主机上的Web服务应该怎么配

PS:（这里由于nginx是容器上运行，然后web服务是运行在linux上，所以有区别）

准备环境：

docker 18.06.1-ce

docker-compose 1.23.0-rc3

nginx镜像

spring.boot的web项目 demo-0.0.1-SNAPSHOT.jar（越简单越好，这里主要用于测试）

开始：

新建目录/usr/iqeq/nginx，目录结构如下

------[ nginx ]
------docker-compose.yml

------demo-0.0.1-SNAPSHOT.jar

------start.sh

------stop.sh

------------------------------[ conf ]

---------------------------------------nginx.conf

------------------------------[ data ]

------------------------------[ log ]

1、我们先把编写sh脚本，用于启动、停止spring.boot项目。

start.sh

#!/bin/bash

SERVER_NAME='demo'

# jar名称

JAR_NAME='demo-0.0.1-SNAPSHOT.jar'

cd `dirname $`

BIN_DIR=`pwd`

SERVER_PORT=

PIDS=`ps -ef | grep java | grep "$JAR_NAME" |awk '{print $2}'`

if [ "$1" = "status" ]; then

    if [ -n "$PIDS" ]; then

        echo "The $SERVER_NAME is running...!"

        echo "PID: $PIDS"

        exit

    else

        echo "The $SERVER_NAME is stopped"

        exit

    fi

fi

if [ -n "$PIDS" ]; then

    echo "ERROR: The $SERVER_NAME already started!"

    echo "PID: $PIDS"

    exit

fi

if [ -n "$SERVER_PORT" ]; then

    SERVER_PORT_COUNT=`netstat -tln | grep $SERVER_PORT | wc -l`

    if [ $SERVER_PORT_COUNT -gt  ]; then

        echo "ERROR: The $SERVER_NAME port $SERVER_PORT already used!"

        exit

    fi

fi

echo -e "Starting the $SERVER_NAME ..."

STDOUT_FILE=$BIN_DIR/stdout.log

nohup java -jar $BIN_DIR/$JAR_NAME > $STDOUT_FILE >& &

COUNT=

while [ $COUNT -lt  ]; do

    echo -e ".\c"

    sleep

    if [ -n "$SERVER_PORT" ]; then

        COUNT=`netstat -an | grep $SERVER_PORT | wc -l`

    else

        COUNT=`ps -f | grep java | grep "$BIN_DIR" | awk '{print $2}' | wc -l`

    fi

    if [ $COUNT -gt  ]; then

        break

    fi

done

echo "OK!"

stop.sh

#!/bin/bash

SERVER_NAME='demo'

# jar名称

JAR_NAME='demo-0.0.1-SNAPSHOT.jar'

cd `dirname $`

SERVER_PORT=

PIDS=`ps -ef | grep java | grep "$JAR_NAME" |awk '{print $2}'`

if [ -z "$PIDS" ]; then

    echo "ERROR: The $SERVER_NAME does not started!"

    exit

fi

echo -e "Stopping the $SERVER_NAME ...\c"

for PID in $PIDS ; do

    kill $PID > /dev/null >&

done

COUNT=

while [ $COUNT -lt  ]; do

    echo -e ".\c"

    sleep

    COUNT=

    for PID in $PIDS ; do

        PID_EXIST=`ps -f -p $PID | grep java`

        if [ -n "$PID_EXIST" ]; then

            COUNT=

            break

        fi

    done

done

echo "OK!"

echo "PID: $PIDS"

2、然后我们把测试的web服务启动起来

这个spring.boot项目很简单，打印一行字符串。

说明web已经起来了。。到这步为止，我们可以看到端口暴露的是8080，没关系，我们下面几个步骤准备来用nginx做代理，转到80端口。

3、编写compose文件

version: ''

services:

  nginx:

    container_name: nginx_container

    image: nginx

    ports:

      - "80:80"

    restart: unless-stopped

    volumes:

      - $PWD/nginx/conf/nginx.conf:/etc/nginx/nginx.conf

      - $PWD/nginx/logs/:/var/log/nginx/

      - $PWD/nginx/data/:/var/share/nginx/html/

在/usr/iqeq/nginx/conf下面新建的那个一个文件：nginx.conf，改下配置如下。

worker_processes  ;

events {

    use epoll;

    worker_connections  ;

}

http {

    include       mime.types;

    default_type  application/octet-stream;

    gzip on;                             #开启压缩

    gzip_min_length ;                #小于1000KB文件不压缩

    gzip_comp_level ;                   #压缩比率

    gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript;

    sendfile        on;

    keepalive_timeout  ;

    server {

        listen       ;

        server_name  demo_web;

        if ($request_method !~ ^(GET|POST)$ ) {

            return ;

        }

        location / {

            proxy_pass http://172.18.0.1:8080/;   #??????

            proxy_set_header Host $http_host;

            proxy_set_header X-Real-IP $remote_addr;

            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

        }

        error_page        /50x.html;

        location = /50x.html {

            root   html;

        }

    }

}