- 1. 基于apt源安装
- 1.1 安装
- 1.2 测试安装是否成功
- 1.3 卸载
- 1. 停止nginx服务
- 2. 删除nginx，-purge包括配置文件
- 3. 移除全部不使用的软件包
- 4. 罗列出与nginx相关的软件并删除
- 5. 查看nginx正在运行的进程，如果有就kill掉
- 2. 通过源码包编译安装
- 1. 安装各种依赖库
- 2. 安装Nginx
- 3. 配置软链接
- 4. 配置开机启动服务
此安装过程是在ubuntu18下完成的。
1. 基于apt源安装
1.1 安装
// 更新包
sudo apt-get update
// 下载安装nginx
sudo apt-get install nginx
Ubuntu安装之后的文件结构大致为：
- 所有的配置文件都在/etc/nginx下，并且每个虚拟主机已经安排在了/etc/nginx/sites-available下
- 程序文件在/usr/sbin/nginx
- 日志放在了/var/log/nginx中
- 并已经在/etc/init.d/下创建了启动脚本nginx
- 默认的虚拟主机的目录设置在了/var/www/nginx-default (有的版本 默认的虚拟主机的目录设置在了/var/www, 请参考/etc/nginx/sites-available里的配置)
其实从上面的根目录文件夹可以知道，Linux系统的配置文件一般放在/etc，日志一般放在/var/log，运行的程序一般放在/usr/sbin或者/usr/bin。
当然，如果要更清楚Nginx的配置项放在什么地方，可以打开/etc/nginx/nginx.conf
然后通过这种方式安装的，会自动创建服务，会自动在/etc/init.d/nginx新建服务脚本，然后就可以使用一下命令来启动
sudo service nginx {start|stop|restart|reload|force-reload|status|configtest|rotate|upgrade}
脚本如下：
#!/bin/sh
### BEGIN INIT INFO
# Provides: nginx
# Required-Start: $local_fs $remote_fs $network $syslog $named
# Required-Stop: $local_fs $remote_fs $network $syslog $named
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: starts the nginx web server
# Description: starts nginx using start-stop-daemon
### END INIT INFO
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
DAEMON=/usr/sbin/nginx
NAME=nginx
DESC=nginx
# Include nginx defaults if available
if [ -r /etc/default/nginx ]; then
. /etc/default/nginx
fi
STOP_SCHEDULE="${STOP_SCHEDULE:-QUIT/5/TERM/5/KILL/5}"
test -x $DAEMON || exit 0
. /lib/init/vars.sh
. /lib/lsb/init-functions
# Try to extract nginx pidfile
PID=$(cat /etc/nginx/nginx.conf | grep -Ev '^\s*#' | awk 'BEGIN { RS="[;{}]" } { if ($1 == "pid") print $2 }' | head -n1)
if [ -z "$PID" ]; then
PID=/run/nginx.pid
fi
if [ -n "$ULIMIT" ]; then
# Set ulimit if it is set in /etc/default/nginx
ulimit $ULIMIT
fi
start_nginx() {
# Start the daemon/service
#
# Returns:
# 0 if daemon has been started
# 1 if daemon was already running
# 2 if daemon could not be started
start-stop-daemon --start --quiet --pidfile $PID --exec $DAEMON --test > /dev/null \
|| return 1
start-stop-daemon --start --quiet --pidfile $PID --exec $DAEMON -- \
$DAEMON_OPTS 2>/dev/null \
|| return 2
}
test_config() {
# Test the nginx configuration
$DAEMON -t $DAEMON_OPTS >/dev/null 2>&1
}
stop_nginx() {
# Stops the daemon/service
#
# Return
# 0 if daemon has been stopped
# 1 if daemon was already stopped
# 2 if daemon could not be stopped
# other if a failure occurred
start-stop-daemon --stop --quiet --retry=$STOP_SCHEDULE --pidfile $PID --name $NAME
RETVAL="$?"
sleep 1
return "$RETVAL"
}
reload_nginx() {
# Function that sends a SIGHUP to the daemon/service
start-stop-daemon --stop --signal HUP --quiet --pidfile $PID --name $NAME
return 0
}
rotate_logs() {
# Rotate log files
start-stop-daemon --stop --signal USR1 --quiet --pidfile $PID --name $NAME
return 0
}
upgrade_nginx() {
# Online upgrade nginx executable
# http://nginx.org/en/docs/control.html
#
# Return
# 0 if nginx has been successfully upgraded
# 1 if nginx is not running
# 2 if the pid files were not created on time
# 3 if the old master could not be killed
if start-stop-daemon --stop --signal USR2 --quiet --pidfile $PID --name $NAME; then
# Wait for both old and new master to write their pid file
while [ ! -s "${PID}.oldbin" ] || [ ! -s "${PID}" ]; do
cnt=`expr $cnt + 1`
if [ $cnt -gt 10 ]; then
return 2
fi
sleep 1
done
# Everything is ready, gracefully stop the old master
if start-stop-daemon --stop --signal QUIT --quiet --pidfile "${PID}.oldbin" --name $NAME; then
return 0
else
return 3
fi
else
return 1
fi
}
case "$1" in
start)
log_daemon_msg "Starting $DESC" "$NAME"
start_nginx
case "$?" in
0|1) log_end_msg 0 ;;
2) log_end_msg 1 ;;
esac
;;
stop)
log_daemon_msg "Stopping $DESC" "$NAME"
stop_nginx
case "$?" in
0|1) log_end_msg 0 ;;
2) log_end_msg 1 ;;
esac
;;
restart)
log_daemon_msg "Restarting $DESC" "$NAME"
# Check configuration before stopping nginx
if ! test_config; then
log_end_msg 1 # Configuration error
exit $?
fi
stop_nginx
case "$?" in
0|1)
start_nginx
case "$?" in
0) log_end_msg 0 ;;
1) log_end_msg 1 ;; # Old process is still running
*) log_end_msg 1 ;; # Failed to start
esac
;;
*)
# Failed to stop
log_end_msg 1
;;
esac
;;
reload|force-reload)
log_daemon_msg "Reloading $DESC configuration" "$NAME"
# Check configuration before stopping nginx
#
# This is not entirely correct since the on-disk nginx binary
# may differ from the in-memory one, but that's not common.
# We prefer to check the configuration and return an error
# to the administrator.
if ! test_config; then
log_end_msg 1 # Configuration error
exit $?
fi
reload_nginx
log_end_msg $?
;;
configtest|testconfig)
log_daemon_msg "Testing $DESC configuration"
test_config
log_end_msg $?
;;
status)
status_of_proc -p $PID "$DAEMON" "$NAME" && exit 0 || exit $?
;;
upgrade)
log_daemon_msg "Upgrading binary" "$NAME"
upgrade_nginx
log_end_msg $?
;;
rotate)
log_daemon_msg "Re-opening $DESC log files" "$NAME"
rotate_logs
log_end_msg $?
;;
*)
echo "Usage: $NAME {start|stop|restart|reload|force-reload|status|configtest|rotate|upgrade}" >&2
exit 3
;;
esac
还有一个好处，创建好的文件由于放在/usr/sbin目录下，所以能直接在终端中使用nginx命令而无需指定路径。
1.2 测试安装是否成功
在命令行中输入：
sudo nginx -t
窗口显示：
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful
在浏览器中输入ip地址：
1.3 卸载
1. 停止nginx服务
sudo service nginx stop
2. 删除nginx，-purge包括配置文件
sudo apt-get --purge remove nginx
3. 移除全部不使用的软件包
sudo apt-get autoremove
4. 罗列出与nginx相关的软件并删除
dpkg --get-selections|grep nginx
sudo apt-get --purge remove nginx
sudo apt-get --purge remove nginx-common
sudo apt-get --purge remove nginx-core
5. 查看nginx正在运行的进程，如果有就kill掉
ps -ef |grep nginx
sudo kill -9 XXX
2. 通过源码包编译安装
这种方式可以自定安装指定的模块以及最新的版本。方式更灵活。
官方下载页面：http://nginx.org/en/download.html
configure配置文件详解：http://nginx.org/en/docs/configure.html
1. 安装各种依赖库
安装gcc g++的依赖库
sudo apt-get install build-essential
sudo apt-get install libtool
安装pcre依赖库（http://www.pcre.org/）
sudo apt-get update
sudo apt-get install libpcre3 libpcre3-dev
安装zlib依赖库（http://www.zlib.net）
sudo apt-get install zlib1g-dev
安装SSL依赖库（18.04默认已经安装了）
sudo apt-get install openssl
2. 安装Nginx
#下载最新版本：
wget http://nginx.org/download/nginx-1.13.6.tar.gz
#解压：
tar -zxvf nginx-1.13.6.tar.gz
#进入解压目录：
cd nginx-1.13.6
#配置：
./configure --prefix=/usr/local/nginx
#编译：
make
#安装：
sudo make install
#启动：
sudo /usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf
注意：-c 指定配置文件的路径，不加的话，nginx会自动加载默认路径的配置文件，可以通过-h查看帮助命令。
#查看进程：
ps -ef | grep nginx
3. 配置软链接
sudo ln -s /usr/local/nginx/sbin/nginx /usr/bin/nginx
现在就可以不用路径直接输入nginx启动。
4. 配置开机启动服务
在/etc/init.d/下创建nginx文件，sudo vim /etc/init.d/nginx，内容如下：
#!/bin/sh
### BEGIN INIT INFO
# Provides: nginx
# Required-Start: $local_fs $remote_fs $network $syslog $named
# Required-Stop: $local_fs $remote_fs $network $syslog $named
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: starts the nginx web server
# Description: starts nginx using start-stop-daemon
### END INIT INFO
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
DAEMON=/usr/sbin/nginx
NAME=nginx
DESC=nginx
# Include nginx defaults if available
if [ -r /etc/default/nginx ]; then
. /etc/default/nginx
fi
STOP_SCHEDULE="${STOP_SCHEDULE:-QUIT/5/TERM/5/KILL/5}"
test -x $DAEMON || exit 0
. /lib/init/vars.sh
. /lib/lsb/init-functions
# Try to extract nginx pidfile
PID=$(cat /etc/nginx/nginx.conf | grep -Ev '^\s*#' | awk 'BEGIN { RS="[;{}]" } { if ($1 == "pid") print $2 }' | head -n1)
if [ -z "$PID" ]; then
PID=/run/nginx.pid
fi
if [ -n "$ULIMIT" ]; then
# Set ulimit if it is set in /etc/default/nginx
ulimit $ULIMIT
fi
start_nginx() {
# Start the daemon/service
#
# Returns:
# 0 if daemon has been started
# 1 if daemon was already running
# 2 if daemon could not be started
start-stop-daemon --start --quiet --pidfile $PID --exec $DAEMON --test > /dev/null \
|| return 1
start-stop-daemon --start --quiet --pidfile $PID --exec $DAEMON -- \
$DAEMON_OPTS 2>/dev/null \
|| return 2
}
test_config() {
# Test the nginx configuration
$DAEMON -t $DAEMON_OPTS >/dev/null 2>&1
}
stop_nginx() {
# Stops the daemon/service
#
# Return
# 0 if daemon has been stopped
# 1 if daemon was already stopped
# 2 if daemon could not be stopped
# other if a failure occurred
start-stop-daemon --stop --quiet --retry=$STOP_SCHEDULE --pidfile $PID --name $NAME
RETVAL="$?"
sleep 1
return "$RETVAL"
}
reload_nginx() {
# Function that sends a SIGHUP to the daemon/service
start-stop-daemon --stop --signal HUP --quiet --pidfile $PID --name $NAME
return 0
}
rotate_logs() {
# Rotate log files
start-stop-daemon --stop --signal USR1 --quiet --pidfile $PID --name $NAME
return 0
}
upgrade_nginx() {
# Online upgrade nginx executable
# http://nginx.org/en/docs/control.html
#
# Return
# 0 if nginx has been successfully upgraded
# 1 if nginx is not running
# 2 if the pid files were not created on time
# 3 if the old master could not be killed
if start-stop-daemon --stop --signal USR2 --quiet --pidfile $PID --name $NAME; then
# Wait for both old and new master to write their pid file
while [ ! -s "${PID}.oldbin" ] || [ ! -s "${PID}" ]; do
cnt=`expr $cnt + 1`
if [ $cnt -gt 10 ]; then
return 2
fi
sleep 1
done
# Everything is ready, gracefully stop the old master
if start-stop-daemon --stop --signal QUIT --quiet --pidfile "${PID}.oldbin" --name $NAME; then
return 0
else
return 3
fi
else
return 1
fi
}
case "$1" in
start)
log_daemon_msg "Starting $DESC" "$NAME"
start_nginx
case "$?" in
0|1) log_end_msg 0 ;;
2) log_end_msg 1 ;;
esac
;;
stop)
log_daemon_msg "Stopping $DESC" "$NAME"
stop_nginx
case "$?" in
0|1) log_end_msg 0 ;;
2) log_end_msg 1 ;;
esac
;;
restart)
log_daemon_msg "Restarting $DESC" "$NAME"
# Check configuration before stopping nginx
if ! test_config; then
log_end_msg 1 # Configuration error
exit $?
fi
stop_nginx
case "$?" in
0|1)
start_nginx
case "$?" in
0) log_end_msg 0 ;;
1) log_end_msg 1 ;; # Old process is still running
*) log_end_msg 1 ;; # Failed to start
esac
;;
*)
# Failed to stop
log_end_msg 1
;;
esac
;;
reload|force-reload)
log_daemon_msg "Reloading $DESC configuration" "$NAME"
# Check configuration before stopping nginx
#
# This is not entirely correct since the on-disk nginx binary
# may differ from the in-memory one, but that's not common.
# We prefer to check the configuration and return an error
# to the administrator.
if ! test_config; then
log_end_msg 1 # Configuration error
exit $?
fi
reload_nginx
log_end_msg $?
;;
configtest|testconfig)
log_daemon_msg "Testing $DESC configuration"
test_config
log_end_msg $?
;;
status)
status_of_proc -p $PID "$DAEMON" "$NAME" && exit 0 || exit $?
;;
upgrade)
log_daemon_msg "Upgrading binary" "$NAME"
upgrade_nginx
log_end_msg $?
;;
rotate)
log_daemon_msg "Re-opening $DESC log files" "$NAME"
rotate_logs
log_end_msg $?
;;
*)
echo "Usage: $NAME {start|stop|restart|reload|force-reload|status|configtest|rotate|upgrade}" >&2
exit 3
;;
esac
#设置服务脚本有执行权限
sudo chmod +x /etc/init.d/nginx
#注册服务cd /etc/init.d/
sudo update-rc.d nginx defaults
现在基本上就可以开机启动了，常用的命令如下：
sudo service nginx {start|stop|restart|reload|force-reload|status|configtest|rotate|upgrade}
