mineos-node

MineOS Webui on CentOS 8

The MineOS user interface can be installed on CentOS systems using the yum package manager and either init.d or supervisord.

As written, these steps will install the webui with the following properties:

Installation steps

The following steps much be executed as root.

DEPENDENCIES

NODE.JS 14.x

# yum -y install curl
# curl -sL https://deb.nodesource.com/setup_14.x | bash -
# yum -y install nodejs

JAVA

The following steps install openjdk16 into a neutral space (/opt) and then symlinks it to /usr/bin/java. Note, that so long as root has a java binary in its $PATH, any version you choose–and even different installation methods–are permissible. This particular openjdk binary is chosen because CentOS 8 does not yet have Java 16 available in its normal repos at time of writing.

# wget https://github.com/AdoptOpenJDK/openjdk16-binaries/releases/download/jdk-16.0.1%2B9/OpenJDK16U-jre_x64_linux_hotspot_16.0.1_9.tar.gz -O openjdk-16-jre.tgz
# tar xf openjdk-16-jre.tgz
# mv jdk-16.0.* /opt/openjdk-16.0-jre
# ln -s /opt/openjdk-16.0-jre/bin/java /usr/bin/java
# rm openjdk-16-jre.tgz

ADDITIONAL DEPENDENCIES

# yum -y install git wget openssl openssl-devel gcc-c++ make rsync screen rdiff-backup

DOWNLOAD WEBUI FILES

# cd /usr/games
# git clone https://github.com/hexparrot/mineos-node minecraft
# cd minecraft
# git config core.filemode false
# chmod +x generate-sslcert.sh mineos_console.js webui.js
# cp mineos.conf /etc/mineos.conf

BUILD NODE DEPENDENCIES

# cd /usr/games/minecraft
# npm install --unsafe-perm

USE HTTPS FOR SECURE TRANSPORT

# cd /usr/games/minecraft
# ./generate-sslcert.sh

SELECTING SERVICE INIT TYPE

CentOS 8 offers systemd by default, which you can use to have the webui start at boot. You may, alternatively, use supervisord–but be sure to only choose one.

SYSTEMD

# cp /usr/games/minecraft/init/systemd_conf /etc/systemd/system/mineos.service
# systemctl enable mineos

Then, to manage the service:

# systemctl status mineos
# systemctl start mineos
# systemctl stop mineos

SUPERVISORD

# apt install -y supervisord
# cp /usr/games/minecraft/init/supervisor_conf /etc/supervisor/conf.d/mineos.conf
# supervisorctl reload

Then, to manage the service:

# supervisorctl status mineos
# supervisorctl start mineos
# supervisorctl stop mineos

USAGE

Once the background daemon is running, you can visit https://[ipaddress]:8443 in your web browser and you will see a user and password prompt. When creating minecraft and managing Minecraft servers, use an unprivileged user to log into the webui. Creating an unprivileged user (a user that is not root) can be accomplished with the adduser username command. The password you set during user creation will also be the password used for the web-ui.

FIREWALLD

CentOS8 installs firewalld by default. Using a firewall is highly recommended, but note that system rules will prohibit connectivity to the webui without adding in targetted rules.

Firewalld is outside the scope of this specific page. It is recommended to properly implement firewall rules, but to address firewalls at a different time after confirming webui operability; you can stop the firewall until next reboot with:

systemctl stop firewalld

If you prefer iptables to firewalld, you can change the firewall selected with:

systemctl disable firewalld
yum remove firewalld