摘要：如何在環(huán)境下部署配置一鍵啟動(dòng)的項(xiàng)目我在內(nèi)要啟動(dòng)寫(xiě)的項(xiàng)目，我使用的是去運(yùn)行和管理項(xiàng)目。所以運(yùn)行會(huì)報(bào)沒(méi)有權(quán)限的錯(cuò)誤。不過(guò)有問(wèn)題每次啟動(dòng)的時(shí)候都要到虛擬機(jī)里面啟動(dòng)還是很麻煩還好有相關(guān)的解決方案，在目錄下有個(gè)的腳本就是用來(lái)啟動(dòng)后執(zhí)行相關(guān)操作的。

我在homestead 內(nèi)要啟動(dòng)node寫(xiě)的項(xiàng)目，我使用的是pm2 去運(yùn)行和管理node 項(xiàng)目。使用pm2 的好處是方便調(diào)試和部署項(xiàng)目。不過(guò)homestead 里面并沒(méi)有內(nèi)置 pm2 功能，我只能自己安裝.

進(jìn)入homestead 虛擬機(jī)（用 vagrant ssh 或者 使用shell工具 我推薦使用 finalshell 是一個(gè)很強(qiáng)大的免費(fèi)工具）

安裝pm2

npm install pm2@latest -g

這個(gè)時(shí)候會(huì)有個(gè)報(bào)錯(cuò)

npm WARN checkPermissions Missing write access to /usr/local/lib/node_modules/pm2
npm WARN checkPermissions Missing write access to /usr/local/lib/node_modules/pm2/node_modules
npm WARN checkPermissions Missing write access to /usr/local/lib/node_modules
npm ERR! path /usr/local/lib/node_modules/pm2
npm ERR! code EACCES
npm ERR! errno -13
npm ERR! syscall access
npm ERR! Error: EACCES: permission denied, access "/usr/local/lib/node_modules/pm2"
npm ERR!  { [Error: EACCES: permission denied, access "/usr/local/lib/node_modules/pm2"]
npm ERR!   stack:
npm ERR!    "Error: EACCES: permission denied, access "/usr/local/lib/node_modules/pm2"",
npm ERR!   errno: -13,
npm ERR!   code: "EACCES",
npm ERR!   syscall: "access",
npm ERR!   path: "/usr/local/lib/node_modules/pm2" }
npm ERR! 
npm ERR! The operation was rejected by your operating system.
npm ERR! It is likely you do not have the permissions to access this file as the current user
npm ERR! 
npm ERR! If you believe this might be a permissions issue, please double-check the
npm ERR! permissions of the file and its containing directories, or try running
npm ERR! the command again as root/Administrator (though this is not recommended).

npm ERR! A complete log of this run can be found in:
npm ERR!     /home/vagrant/.npm/_logs/2018-08-30T01_48_01_688Z-debug.log

因?yàn)閔omestead 默認(rèn)登陸的是 vagrant 用戶 。所以運(yùn)行npm install pm2@latest -g 會(huì)報(bào)沒(méi)有權(quán)限的錯(cuò)誤。

要切換到 root 用戶 或者 使用

sudo npm install pm2@latest

安裝。

我采用的是切換root 用戶，但是homestead沒(méi)有給root設(shè)置密碼，所以我們要先設(shè)置下root 用戶的密碼

sudo passwd root 

然后用新設(shè)置的密碼登陸 root 用戶，安裝PM2.

安裝完成后， 初始化pm2

pm2 init 

會(huì)生成配置文件 ecosystem.config.js ,設(shè)置好項(xiàng)目配置文件.

啟動(dòng)項(xiàng)目

pm2 start ecosystem.config.js

到這時(shí)候就可以訪問(wèn)node項(xiàng)目了。

不過(guò)有問(wèn)題每次啟動(dòng)homestead的時(shí)候都要到虛擬機(jī)里面啟動(dòng)pm2 還是很麻煩還好 homestead 有相關(guān)的解決方案，在 homestead 目錄下有個(gè) after.sh 的 shell 腳本就是用來(lái)啟動(dòng) homestead 后執(zhí)行相關(guān) shell 操作的。

我在里面加內(nèi)容

#!/usr/bin/env bash
# If you would like to do some extra provisioning you may
# add any commands you wish to this file and they will
# be run after the Homestead machine is provisioned.

# 切換到root 用戶
su root -c "root"

# 啟動(dòng)微課堂后臺(tái)前端項(xiàng)目
npm install pm2@latest -g

# 啟動(dòng)微課堂后臺(tái)前端項(xiàng)目
pm2 start ~/onlineducation.config.js

重啟 homestead 會(huì)報(bào)錯(cuò)

homestead: su: must be run from a terminal
    homestead: npm WARN checkPermissions Missing write access to /usr/local/lib/node_modules/pm2
    homestead: npm WARN
    homestead: checkPermissions Missing write access to /usr/local/lib/node_modules/pm2/node_modules
    homestead: npm WARN checkPermissions Missing write access to /usr/local/lib/node_modules
    homestead: npm ERR! path /usr/local/lib/node_modules/pm2
    homestead: npm ERR! code EACCES
    homestead: npm ERR! errno
    homestead:  -13
    homestead: npm
    homestead: ERR!
    homestead:  syscall
    homestead:  access
    homestead: npm ERR! Error: EACCES: permission denied, access "/usr/local/lib/node_modules/pm2"
    homestead: npm ERR!
    homestead:   { [Error: EACCES: permission denied, access "/usr/local/lib/node_modules/pm2"]
    homestead: npm ERR!
    homestead:    stack:
    homestead: npm
    homestead: ERR!    "Error: EACCES: permission denied, access "/usr/local/lib/node_modules/pm2"",
    homestead: npm
    homestead:  ERR!
    homestead:    errno: -13,
    homestead: npm ERR!
    homestead:    code: "EACCES",
    homestead: npm ERR!   syscall: "access",
    homestead: npm ERR!   path: "/usr/local/lib/node_modules/pm2" }
    homestead: npm
    homestead: ERR!
    homestead:
    homestead: npm ERR! The operation was rejected by your operating system.
    homestead: npm ERR! It is likely you do not have the permissions to access this file as the current user
    homestead: npm ERR!
    homestead: npm ERR!
    homestead:  If you believe this might be a permissions issue, please double-check the
    homestead: npm ERR! permissions of the file and its containing directories, or try running
    homestead: npm
    homestead: ERR!
    homestead:  the command again as root/Administrator (though this is not recommended).
    homestead: npm
    homestead: ERR! A complete log of this run can be found in:
    homestead: npm ERR!     /home/vagrant/.npm/_logs/2018-08-30T01_35_38_735Z-debug.log
    homestead: [PM2] Spawning PM2 daemon with pm2_home=/home/vagrant/.pm2

su 命令只能在終端運(yùn)行，看來(lái)只能用其他方法切換用戶了。

修改 after.sh 腳本 使用 expect改成可遠(yuǎn)程執(zhí)行的腳本

#!/usr/bin/env bash
# If you would like to do some extra provisioning you may
# add any commands you wish to this file and they will
# be run after the Homestead machine is provisioned.

# 安裝 expect
sudo snap install expect

# 安裝 pm2
sudo npm install pm2@latest -g

# 切換到root 用戶
expect -c "
spawn su - root
expect ":"
send "root
"
expect ":"
send "cd /home/vagrant
"
expect ":"
send "pm2 start onlineducation.config.js
"
expect ":"
interact
"

如果 expect 不能安裝，可以進(jìn)入虛擬機(jī)先安裝好，再重啟 homestead 就可以了。