一、安装erlang
# 添加仓库
curl -s https://packagecloud.io/install/repositories/rabbitmq/erlang/script.rpm.sh | sudo bash
Detected operating system as centos/8.
# 安装erlang
dnf install erlang
# 添加仓库
curl -s https://packagecloud.io/
阅读背景：
centos8安装RabbitMQ
来源：互联网
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