docker搭建lnmp環境

HelloWorld-Q發表於2021-05-08
  1. docker基礎
  2. docker搭建lnmp環境

1. docker基礎

1.1 docker的安裝

docker的安裝非常簡單,我們可以直接使用centos系統中的yum命令進行安裝:

yum install -y docker

完成後檢視docker的版本資訊:

[root@localhost docker]# docker version
Client:
 Version:         1.13.1
 API version:     1.26
 Package version: docker-1.13.1-204.git0be3e21.el7.x86_64
 Go version:      go1.10.3
 Git commit:      0be3e21/1.13.1
 Built:           Fri Mar 19 13:57:09 2021
 OS/Arch:         linux/amd64

Server:
 Version:         1.13.1
 API version:     1.26 (minimum version 1.12)
 Package version: docker-1.13.1-204.git0be3e21.el7.x86_64
 Go version:      go1.10.3
 Git commit:      0be3e21/1.13.1
 Built:           Fri Mar 19 13:57:09 2021
 OS/Arch:         linux/amd64
 Experimental:    false
[root@localhost docker]#

證明安裝完成,docker的命令如下:

systemctl start docker   # 啟動docker
systemctl stop docker    # 停止docker
systemctl status docker  # 檢視docker狀態
systemctl restart docker # 重新啟動docker

在啟動之前我們需要修改docker的映象源:

[root@localhost docker]# vim /etc/docker/daemon.json

{
  "registry-mirrors": ["https://ftnejmh3.mirror.aliyuncs.com"]
}

完成後執行systemctl start docker,啟動docker服務。

2. docker搭建lnmp環境

環境軟體介紹:

1\. docker
2. nginx
3. mysql
4. php7.4
5. laravel7

docker搭建的lnmp目錄結構:

docker
│   └── nginx
│   │   └── default.conf #nginx配置檔案
│   └── www
│       └── lmrs-2008    #lmrs的laravel專案程式碼

2.1 docker搭建nginx

我們可以使用docker search nginx命令查詢 Docker Hub 上的 nginx 映象,這裡直接拉取官方的映象

[root@localhost ~]# docker pull nginx

等待下載完成後,我們就可以在本地映象列表裡查到 REPOSITORY 為 nginx 的映象。

[root@localhost www]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
docker.io/nginx     latest              62d49f9bab67        12 days ago         133 MB

建立nginx配置

[root@localhost ~]# cd /docker/nginx
[root@localhost ~]# touch default.conf
[root@localhost ~]# vim default.conf

server {
    listen       80;
    listen  [::]:80;
    server_name  localhost;
    root /docker/www/lmrs-2008/public;
    index index.php index.html;

    location / {
        try_files $uri $uri/ /index.php?$query_string;
    }

    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
        root   /docker/www/lmrs-2008/public;
    }

    location ~ \.php$ {
        root /docker/www/lmrs-2008/public;
        fastcgi_pass   172.17.0.3:9000;
        fastcgi_index  index.php;
        fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
        include        fastcgi_params;
    }
}

使用nginx映象開啟nginx應用容器

[root@localhost ~]# docker run -p 80:80 -d --name nginx -v /docker/nginx/default.conf:/etc/nginx/conf.d/default.conf -v /docker/www:/docker/www  --privileged=true nginx

-p 80:80:將容器的80埠對映到主機的80-d 後臺執行(守護程式)
--name nginx:將容器命名為nginx
-v 將主機中當前目錄下的www掛載到容器的www目錄

#檢視docker目前的容器
[root@localhost ~]# docker ps
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                               NAMES
8781afd1bf13        nginx               "/docker-entrypoin..."   About an hour ago   Up 17 minutes       0.0.0.0:80->80/tcp                  nginx

2.2 docker安裝php

和nginx一樣,我們可以先通過docker search php查詢映象,這裡直接拉取官方的映象,標籤為7.4-fpm,其他版本的可自行選擇

[root@localhost ~]# docker pull php:7.4-fpm

等待下載完成後,我們就可以在本地映象列表裡查到REPOSITORY為php,標籤為7.4-fpm的映象。

[root@localhost docker]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
docker.io/nginx     latest              62d49f9bab67        12 days ago         133 MB
docker.io/php       7.4-fpm             41b17b0f90e6        2 weeks ago         405 MB

使用php映象開啟php-frm應用容器

[root@localhost docker]# docker run -p 9000:9000 -d --name php -v /docker/www:/docker/www --privileged=true php:7.4-fpm
-p 9000:9000 :將容器的9000埠對映到主機的9000-d 後臺執行(守護程式)
--name php:將容器命名為php
-v 將主機中當前目錄下的www掛載到容器的www目錄

檢視容器啟動情況

[root@localhost docker]# docker ps -a
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                               NAMES
cbf73ca0f17c        php:7.4-fpm         "docker-php-entryp..."   About an hour ago   Up About an hour    0.0.0.0:9000->9000/tcp              php
8781afd1bf13        nginx               "/docker-entrypoin..."   About an hour ago   Up 23 minutes       0.0.0.0:80->80/tcp                  nginx

到這裡,可以看到nginx和php都執行成功(STATUS為up說明正在執行)

檢視ip資訊

[root@localhost docker]# docker inspect php | grep "IPAddress"
            "SecondaryIPAddresses": null,
            "IPAddress": "172.17.0.3",
                    "IPAddress": "172.17.0.3",

檢視nginx配置的php-fpm服務ip是否一致:

location ~ \.php$ {
    root /docker/www/lmrs-2008/public;
    fastcgi_pass   172.17.0.3:9000;
    fastcgi_index  index.php;
    fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
    include        fastcgi_params;
}

以上配置中fastcgi_pass 172.17.0.3:9000;需要與我們檢視的php容器的ip一致。

完成以上配置並且確定容器啟動沒有問題,可以進行測試:

訪問laravel可能出現目錄許可權問題,以下是解決方式:

[root@localhost docker]# cd /docker/www
[root@localhost www]# chmod -R 777 lmrs-2008

2.3 docker 搭建mysql

和nginx一樣,我們可以先通過docker search mysql查詢映象,這裡直接拉取官方的映象

[root@localhost docker]# docker pull mysql

等待下載完成後,我們就可以在本地映象列表裡查到REPOSITORY為mysql的映象

[root@localhost docker]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
docker.io/mysql     latest              0627ec6901db        6 days ago          556 MB
docker.io/nginx     latest              62d49f9bab67        12 days ago         133 MB
docker.io/php       7.4-fpm             41b17b0f90e6        2 weeks ago         405 MB

配置宿主機的mysql配置檔案

[root@localhost docker]# vim /etc/my.cnf

[client]
port        = 3306
socket        = /tmp/mysql.sock

[mysqld]
secure_file_priv=/var/lib/mysql
port        = 3306
socket        = /tmp/mysql.sock
datadir = /usr/local/mysql/data
default_storage_engine = InnoDB
performance_schema_max_table_instances = 400
table_definition_cache = 400
skip-external-locking
key_buffer_size = 32M
max_allowed_packet = 100G
table_open_cache = 128
sort_buffer_size = 768K
net_buffer_length = 4K
read_buffer_size = 768K
read_rnd_buffer_size = 256K
myisam_sort_buffer_size = 8M
thread_cache_size = 16
tmp_table_size = 32M
default_authentication_plugin = mysql_native_password
lower_case_table_names = 1
sql-mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES

explicit_defaults_for_timestamp = true
max_connections = 500
max_connect_errors = 100
open_files_limit = 65535

log-bin=mysql-bin
binlog_format=mixed
server-id = 1
binlog_expire_logs_seconds = 600000
slow_query_log=1
slow-query-log-file=/usr/local/mysql/data/mysql-slow.log
long_query_time=3
early-plugin-load = ""

innodb_data_home_dir = /usr/local/mysql/data
innodb_data_file_path = ibdata1:10M:autoextend
innodb_log_group_home_dir = /usr/local/mysql/data
innodb_buffer_pool_size = 128M
innodb_log_file_size = 64M
innodb_log_buffer_size = 16M
innodb_flush_log_at_trx_commit = 1
innodb_lock_wait_timeout = 50
innodb_max_dirty_pages_pct = 90
innodb_read_io_threads = 1
innodb_write_io_threads = 1

[mysqldump]
quick
max_allowed_packet = 500M

[mysql]
no-auto-rehash

[myisamchk]
key_buffer_size = 32M
sort_buffer_size = 768K
read_buffer = 2M
write_buffer = 2M

[mysqlhotcopy]
interactive-timeout

使用php映象開啟php-frm應用容器

[root@localhost docker]# docker run -p 3306:3306 -d --name mysql -v /etc/my.cnf:/etc/mysql/my.cnf --privileged=true -e MYSQL_ROOT_PASSWORD=root mysql

-p 3306:3306 :將容器的3306埠對映到主機的3306-d 後臺執行(守護程式)
--name mysql:將容器命名為mysql
-v 將主機中的mysql配置掛載到容器的/etc/mysql/my.cnf

進入容器,連線mysql配置一個自己的使用者,用於專案使用。

[root@localhost docker]# docker exec -it mysql bash
root@0ead771c95b4:/#

#連線mysql,密碼就是我們在構建容器時映象設定的MYSQL_ROOT_PASSWORD引數值
root@0ead771c95b4:/# mysql -uroot -p
Enter password:
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 11
Server version: 8.0.24 MySQL Community Server - GPL

Copyright (c) 2000, 2021, Oracle and/or its affiliates.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql>
mysql> create user `starsky`@`%` identified by "root";
mysql> grant all on *.* to `starsky`@`%` with grant option;
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