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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Jenkins use docker agent with maven Compile and build Environment

github : https://github.com/catyku/JenkinsAgentMaven

docker hub :

docker pull catyku/jenkins-slave-maven3.5

Dockerfile include

  • openjdk 1.8
  • maven 3.5
  • jenkins/jnlp-slave

Dockfile

FROM jenkins/jnlp-slave:latest
USER root
ARG USER_HOME_DIR="/jenkins"
RUN apt-get update  -y
RUN apt-get install -y --no-install-recommends tzdata 
ENV TZ Asia/Taipei
#RUN apt-get upgrade  -y
#RUN apt-get install -y software-properties-common
#RUN add-apt-repository ppa:openjdk-r/ppa -y
RUN apt-get install -y maven
USER jenkins 
ENV MAVEN_HOME /usr/share/maven
ENV MAVEN_CONFIG "$USER_HOME_DIR/.m2"
COPY settings-docker.xml /usr/share/maven/ref/
USER jenkins 
ENTRYPOINT ["jenkins-slave"]
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