====== Docker Images 內的狀態查看方式 ======
因為愈來愈多的機會會取用到 [[https://hub.docker.com/|Docker Hub]] 上的 images , 所以整理一下可以快速用這個 image 啟動一個 docker container 來看 images 內的系統版本與檔案相關路徑等資訊

===== 基本語法 =====
  * **docker run -i -t <image> <shell cmd>** Exp. php image<cli>
docker run -i -t php:7.0.33-cli-jessie bash
</cli>
  * 查看作業系統版本<cli>
root@ef8c2a5ab946:/# cat /etc/issue
Debian GNU/Linux 8 \n \l
</cli>
  * 查看 php 版本與路徑<cli>
root@ef8c2a5ab946:/# php -v
PHP 7.0.33 (cli) (built: Dec 29 2018 07:12:20) ( NTS )
Copyright (c) 1997-2017 The PHP Group
Zend Engine v3.0.0, Copyright (c) 1998-2017 Zend Technologies
root@ef8c2a5ab946:/# which php
/usr/local/bin/php
root@ef8c2a5ab946:/usr/local/src# ls -l /usr/local/
total 40
drwxrwsr-x 1 root staff 4096 Dec 29  2018 bin
drwxrwsr-x 1 root staff 4096 Dec 29  2018 etc
drwxrwsr-x 2 root staff 4096 Dec 26  2018 games
drwxrwsr-x 1 root staff 4096 Dec 29  2018 include
drwxrwsr-x 1 root staff 4096 Dec 29  2018 lib
lrwxrwxrwx 1 root staff    9 Dec 26  2018 man -> share/man
drwxr-sr-x 3 root staff 4096 Dec 29  2018 php
drwxrwsr-x 2 root staff 4096 Dec 26  2018 sbin
drwxrwsr-x 1 root staff 4096 Dec 29  2018 share
drwxrwsr-x 2 root staff 4096 Dec 26  2018 src
drwxr-sr-x 4 root staff 4096 Dec 29  2018 var
</cli>
  * 目前有哪些 php 模組<cli>
root@bd62f18ef84e:/# php -m
[PHP Modules]
Core
ctype
curl
date
dom
fileinfo
filter
ftp
hash
iconv
json
libxml
mbstring
mysqlnd
openssl
pcre
PDO
pdo_sqlite
Phar
posix
readline
Reflection
session
SimpleXML
SPL
sqlite3
standard
tokenizer
xml
xmlreader
xmlwriter
zlib

[Zend Modules]
</cli>


===== 參考網址 =====
  * https://ithelp.ithome.com.tw/articles/10186431
  * https://kknews.cc/zh-tw/code/rn8bpxr.html

{{tag>docker container k8s}}