我是Docker的新手。我設法用我想要的東西(CentOS與Apache,PHP,MySQL,MailHog和supervisord)構建一個映像。它工作正常。現在Docker「無法通過套接字連接到本地MySQL服務器」
,我想要做的就是把我的形象(一個容器)分成多張圖片/容器:一爲web
,一個用於db
等
我設法建立這些不同的圖像,但我無法通過docker-composer.yml
連接web
和db
。以下是我有:
web:
container_name: centosweb
image: fab/centosweb
ports:
- "80:80"
volumes:
# Single files
- ./config/httpd.conf:/etc/httpd/conf/httpd.conf
# Directories
- ./vhosts:/var/www/html
- /Users/fabien/Dropbox/AppData/XAMPP/web/bilingueanglais/public_html:/var/www/html/bilingueanglais
- ./logs/apache:/etc/httpd/logs # This will include access_log(s) and error_log(s), including PHP errors.
links:
- db
db:
container_name: centosdb
image: fab/centosdb
volumes:
# Single files
- ./config/my.cnf:/etc/my.cnf
# Directories
- ./mysqldata:/var/lib/mysql
- ./logs/mysql:/var/log/mysql
的docker ps
輸出是這樣的:
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
95048de7a6c4 fab/centosweb "supervisord -n" 14 minutes ago Up 14 minutes 22/tcp, 8025/tcp, 0.0.0.0:80->80/tcp centosweb
eab3047a2dde fab/centosdb "supervisord -n" 14 minutes ago Up 14 minutes 22/tcp, 80/tcp, 8025/tcp centosdb
試圖連接到我的虛擬主機,我得到一個數據庫錯誤:
Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock'
然而,我可以連接到centosdb,輸入MySQL,並確認數據庫在那裏(即:數據庫服務器本身運行良好。)
我的理解到目前爲止是我錯過了一種方法來告訴MySQL允許連接從web
應用程序而不是默認行爲(連接來自localhost
。)但是,我很困惑如何做到這一點。
這與this question非常相似,但後者不包含我正在尋找的細節。
編輯:Dockerfile
爲db
容器的來源。
FROM centos:6.9
# Install MySQL (MariaDB)
# Warning: the repo is super slow in my experience (e.g.: 15 min for 191 MB.)
RUN yum -y update
ADD MariaDB.repo /etc/yum.repos.d/MariaDB.repo
RUN yum install -y MariaDB-server MariaDB-client
# Install supervisord
# EPEL = Extra Packages for Enterprise Linux -- used for python
RUN rpm -Uvh http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
RUN yum install -y python-pip && pip install "pip>=1.4,<1.5" --upgrade
RUN pip install supervisor
##
# START SERVER
# port 22: SSH
# port 80: TCP, HTTP
# port 8025: MailHog UI (web)
##
ADD supervisord-db.conf /etc/supervisord.conf
EXPOSE 22 80 8025
CMD ["supervisord", "-n"]
# MEMO · BUILD THE IMAGE:
# docker build -t fab/centosdb .
你是否指向mysql? db:3306('web'看到的主機名是'db' – Robert
我的意思是,在應用程序配置文件 – Robert
請發佈'fab/centosdb'圖片的'Dockerfile'。另外,確保你指向'db' service as @Robert said。 – kstromeiraos