通過(guò)阿里云鏡像安裝docker到本地
配置docker 不需要sudo運(yùn)行根蟹，可能需要重啟電腦才能生效
sudo groupadd docker
sudo usermod -aG docker $USER
查看本地鏡像程储，暫時(shí)無(wú)鏡像文件
vagrant@dragon:~$ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
遠(yuǎn)端查找需要的鏡像文件匀伏，stars至少為3作為過(guò)濾條件
vagrant@dragon:~$ docker search --filter=stars=3 ubuntu
NAME DESCRIPTION STARS OFFICIAL AUTOMATED
ubuntu Ubuntu is a Debian-based Linux operating s... 8782 [OK]
dorowu/ubuntu-desktop-lxde-vnc Ubuntu with openssh-server and NoVNC 243
拉取鏡像到本地
vagrant@dragon:~$ docker pull ubuntu
32802c0cfa4d: Pull complete
da1315cffa03: Pull complete
本地已經(jīng)有了鏡像文件, 但是本地沒(méi)有運(yùn)行的容器荒辕。
vagrant@dragon:~$ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
ubuntu latest 93fd78260bd1 3 days ago 86.2MB
vagrant@dragon:~$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
通過(guò)鏡像后臺(tái)啟動(dòng)一個(gè)容器兼搏，查看容器運(yùn)行起來(lái)了症虑，進(jìn)入運(yùn)行的容器，查看ubuntu版本號(hào)
vagrant@dragon:~$ docker run -itd 93fd
f1e8b04d7556f05cbb981196f1d1b8085348553aba65d46d4ef8fb057677af75
vagrant@dragon:~$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
f1e8b04d7556 93fd "/bin/bash" 6 seconds ago Up 5 seconds blissful_hypatia
vagrant@dragon:~$ docker attach f1e8b04d7556
root@f1e8b04d7556:/# cat /etc/issue
Ubuntu 18.04.1 LTS \n \l
在容器里面安裝php7.2勇皇，apache2.4
root@f1e8b04d7556:/# apt-get update && apt-get upgrade
Get:1 http://security.ubuntu.com/ubuntu bionic-security InRelease [83.2 kB]
Get:2 http://archive.ubuntu.com/ubuntu bionic InRelease [242 kB]
...
root@f1e8b04d7556:/# apt-get install php
Reading package lists... Done
Building dependency tree
...
root@f1e8b04d7556:/# php -v
PHP 7.2.10-0ubuntu0.18.04.1 (cli) (built: Sep 13 2018 13:45:02) ( NTS )
root@f1e8b04d7556:~# apt install apache2
root@f1e8b04d7556:~# apachectl -v
Server version: Apache/2.4.29 (Ubuntu)
root@f1e8b04d7556:/# apt-get install systemd
f1e8b04d7556
root@f1e8b04d7556:~# service apache2 start
root@f1e8b04d7556:~# apt-get install net-tools
root@f1e8b04d7556:~# ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 172.17.0.3 netmask 255.255.0.0 broadcast 0.0.0.0
因?yàn)闆](méi)有做外部端口映射罩句，外部容器的的ip，是無(wú)法直接訪問(wèn)容器的敛摘。保存提交現(xiàn)在的修改到鏡像中门烂。再映射端口，開(kāi)啟容器兄淫。
一定要在exit和stop容器前屯远，提交容器修改，生成一個(gè)新的鏡像
docker commit [容器ID] [新的鏡像名字]
vagrant@dragon:~$ docker commit 0fc2894e1c64 ubuntu18:apache24php72
vagrant@dragon:~$ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
ubuntu18 apache24php72 15f84056ba6f 9 seconds ago 275MB
ubuntu latest 93fd78260bd1 3 days ago 86.2MB
重啟容器捕虽，映射端口到容器, 瀏覽器訪問(wèn)0.0.0.0就可以看到apache的說(shuō)明文件了慨丐。
vagrant@dragon:~$ sudo docker run -p 80:80 -it 15f84056ba6f
root@0fc2894e1c64:/#
vagrant@dragon:~$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
0fc2894e1c64 93fd78260bd1 "/bin/bash" About a minute ago Up About a minute 0.0.0.0:80->80/tcp fervent_benz
導(dǎo)出鏡像文件, 導(dǎo)入鏡像文件
vagrant@dragon:~$ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
ubuntu18 apache24php72 15f84056ba6f 30 minutes ago 275MB
ubuntu latest 93fd78260bd1 3 days ago 86.2MB
vagrant@dragon:~$ docker save -o ubuntu18_apache24_php72.tar ubuntu18:apache24php72
vagrant@dragon:~$ ls
ubuntu18_apache24_php72.tar
vagrant@dragon:~$ docker load -i ubuntu18_apache24_php72.tar
Loaded image: ubuntu18:apache24php72
找到原來(lái)的容器ID，在退出容器之后薯鳍，再次進(jìn)去咖气，看到原來(lái)的修改. 這個(gè)時(shí)常無(wú)效，還是要定時(shí)commit
vagrant@dragon:~$ docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
469f438b147c 15f84056ba6f "/bin/bash" 8 minutes ago Up 40 seconds 0.0.0.0:80->80/tcp keen_turing
4ff923f14b71 15f84056ba6f "/bin/bash" 9 minutes ago Exited (0) 8 minutes ago
vagrant@dragon:~$ docker attach 469f438b147c
root@469f438b147c:/# cd
root@469f438b147c:~# ls
xxx.txt
從dockerfile里面裝lamp
Dockerfile
FROM ubuntu:latest
RUN apt-get update && apt-get install -y apache2 php libapache2-mod-php php-mysql php-cli php-curl php-xml php-intl php-mbstring git vim composer curl net-tools
COPY . /var/www/example
COPY vhost.conf /etc/apache2/sites-available/example.conf
RUN a2ensite example
RUN chown -R www-data:www-data /var/www/example/logs
RUN service apache2 restart
#ENV APACHE_RUN_USER www-data
#ENV APACHE_RUN_GROUP www-data
#ENV APACHE_LOG_DIR /var/log/apache2
EXPOSE 80
CMD apachectl -D FOREGROUND
build dockerfile
vagrant@dragon:~$ mkdir lamp
vagrant@dragon:~$ cd lamp
vagrant@dragon:~$ vi dockerfile
vagrant@dragon:~$ docker build -t lamp:Dockerfile .
docker 安裝mysql
vagrant@dragon:~$ docker pull mysql
vagrant@dragon:~$ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
ubuntu18 apache24php72 15f84056ba6f 4 hours ago 275MB
ubuntu latest 93fd78260bd1 3 days ago 86.2MB
mysql latest f991c20cb508 7 days ago 486MB
docker 啟動(dòng)mysql
vagrant@dragon:~$ docker run --name vagrant-mysql -p 3308:3306 -e MYSQL\_ROOT\_PASSWORD=123456 -d mysql
外部登錄mysql, 虛擬機(jī)IP192.168.33.12挖滤，虛擬機(jī)映射端口3308
vagrant@dragon:~$ mysql -h192.168.33.12 -P3308 -uroot -p123456
mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 9
Server version: 8.0.13 MySQL Community Server - GPL
運(yùn)行mysql
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| sys |
+--------------------+
4 rows in set (0.00 sec)
聯(lián)接到另外一臺(tái)容器
--link參數(shù)格式為--link name:alias,其中name是要鏈接的容器名稱(chēng)崩溪，alias是這個(gè)連接的名稱(chēng)。
宿主機(jī)上的任何一臺(tái)容器都可以通過(guò)暴露的端口連接到mysql
Docker 掛載mysql數(shù)據(jù)卷到本地
vagrant@dragon:~$ docker run --name mysql-master -p 3308:3306 -v /docker-mysql-data-volumn/mysql-master/data:/var/lib/mysql -v /docker-mysql-data-volumn/mysql-master/conf:/etc/mysql/conf.d -e MYSQL_ROOT_PASSWORD=anna -d mysql:latest
Docker退出容器不關(guān)閉容器
Ctrl+P+Q
