如何在 Rocky Linux 8 上安裝 Docker 和 Docker-Compose

眾所周知,Docker容器是IT世界中技術需求量很大。在 Docker Container協助下,開發人員和基礎設施管理員可以打包他們的應用程式及其依賴項目,並可以在一個computer將其deploy,換到另一個computer中一樣可行。

以下將介紹如何逐步在Rocky Linux 8(AlamLinux)上安裝Docker和Docker Compose。

Step 1 安裝所需套件及repository

 sudo yum install -y yum-utils
 sudo yum-config-manager \
    --add-repo \
    https://download.docker.com/linux/centos/docker-ce.repo

Step 2 安裝docker 及docker compose

sudo yum install docker-ce docker-ce-cli containerd.io docker-compose-plugin

Step 3 啟動docker

sudo systemctl start docker

Step 4 測試一下

sudo docker run hello-world

設定啟動Linux自動啟動

sudo systemctl enable docker

wordpress昇級php版本-使用docker phpFPM

1.上wordpress docker 找到要的版本

wordpress docker hub

2.把Dockerfile下方下載wordpress tar功能拿掉

#
# NOTE: THIS DOCKERFILE IS GENERATED VIA "apply-templates.sh"
#
# PLEASE DO NOT EDIT IT DIRECTLY.
#

FROM php:7.4-fpm

# persistent dependencies
RUN set -eux; \
	apt-get update; \
	apt-get install -y --no-install-recommends \
# Ghostscript is required for rendering PDF previews
		ghostscript \
	; \
	rm -rf /var/lib/apt/lists/*

# install the PHP extensions we need (https://make.wordpress.org/hosting/handbook/handbook/server-environment/#php-extensions)
RUN set -ex; \
	\
	savedAptMark="$(apt-mark showmanual)"; \
	\
	apt-get update; \
	apt-get install -y --no-install-recommends \
		libfreetype6-dev \
		libjpeg-dev \
		libmagickwand-dev \
		libpng-dev \
		libzip-dev \
	; \
	\
	docker-php-ext-configure gd \
		--with-freetype \
		--with-jpeg \
	; \
	docker-php-ext-install -j "$(nproc)" \
		bcmath \
		exif \
		gd \
		mysqli \
		zip \
	; \
	pecl install imagick-3.4.4; \
	docker-php-ext-enable imagick; \
	rm -r /tmp/pear; \
	\
# reset apt-mark's "manual" list so that "purge --auto-remove" will remove all build dependencies
	apt-mark auto '.*' > /dev/null; \
	apt-mark manual $savedAptMark; \
	ldd "$(php -r 'echo ini_get("extension_dir");')"/*.so \
		| awk '/=>/ { print $3 }' \
		| sort -u \
		| xargs -r dpkg-query -S \
		| cut -d: -f1 \
		| sort -u \
		| xargs -rt apt-mark manual; \
	\
	apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false; \
	rm -rf /var/lib/apt/lists/*

# set recommended PHP.ini settings
# see https://secure.php.net/manual/en/opcache.installation.php
RUN set -eux; \
	docker-php-ext-enable opcache; \
	{ \
		echo 'opcache.memory_consumption=128'; \
		echo 'opcache.interned_strings_buffer=8'; \
		echo 'opcache.max_accelerated_files=4000'; \
		echo 'opcache.revalidate_freq=2'; \
		echo 'opcache.fast_shutdown=1'; \
	} > /usr/local/etc/php/conf.d/opcache-recommended.ini
# https://wordpress.org/support/article/editing-wp-config-php/#configure-error-logging
RUN { \
# https://www.php.net/manual/en/errorfunc.constants.php
# https://github.com/docker-library/wordpress/issues/420#issuecomment-517839670
		echo 'error_reporting = E_ERROR | E_WARNING | E_PARSE | E_CORE_ERROR | E_CORE_WARNING | E_COMPILE_ERROR | E_COMPILE_WARNING | E_RECOVERABLE_ERROR'; \
		echo 'display_errors = Off'; \
		echo 'display_startup_errors = Off'; \
		echo 'log_errors = On'; \
		echo 'error_log = /dev/stderr'; \
		echo 'log_errors_max_len = 1024'; \
		echo 'ignore_repeated_errors = On'; \
		echo 'ignore_repeated_source = Off'; \
		echo 'html_errors = Off'; \
	} > /usr/local/etc/php/conf.d/error-logging.ini


COPY docker-entrypoint.sh /usr/local/bin/
 

ENTRYPOINT ["docker-entrypoint.sh"]
CMD ["php-fpm"]

3.倒數第三行加上執行權限

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Mariadb Tomcat Docker environment

This is a docker-compose yml,Integrated Mariadb、phpMyAdmin、tomcat Docker

How to start

  • install docker-ce and docker-compose
  • change to project directory to build and run docker
    sudo docker-compose up -d --build
  • use phpMyAdmin restore database (options)
  • build project war file and put to tomcat-webapps directory
  • browse http://yourip:8080/warFileName

docker information

  • mariadb:latest
  • phpmyadmin/phpmyadmin:latest
  • tomcat:8.5.49-jkd8-openjdk

default information

  • tomcat manager account and password admin / mypassword112233
  • mariadb root default password myadmin123
  • phpMyAdmin default port 8088
  • tomcat default port 8080 ;AJP port 8009
  • tomcat workspace is tomcat-webapps
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docker佈署Postgresql and PgAdmin

修改 khezen/compose-postgres

如果需要程式php或java可以考慮把postgresql 5432對外或是另外建一個docker link到postgres網路

系統需求

docker >= 17.12.0+
docker-compose

Github

https://github.com/catyku/postgresql-pgadmin

布署方式

git clonse https://github.com/catyku/postgresql-pgadmin
cd postgresql-pgadmin
sudo docker-compose -d up

可以由sudo docker ps -a 看到postgresql 及pgadmin二個container已經在執行中

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