Build a microservice cluster environment locally and learn to deploy automatically

problem ： Set up a microservice cluster locally , Learn to automate deployment

Build a local virtual machine cluster

• Download... On the official website VirtualBox Software , Installed locally windows In machine
• download ubuntu20.04 Server Edition , stay VirtualBox Install the image in
• Copy the prepared system , Create other systems
• In the installed system , Generate static IP
• To configure windows,IP Be able to visit each other

Automated Deployment

gitlab: Local code management center
nexus maven： Local package management center
Docker Register： Local docker Management Center
Jeckins： Keep releasing tools

Corresponding problem record

remarks 1：VirtualBox An error message appears when opening ：“VirtualBox Not for virtual computers Ubuntu Open a new task ：The VM session was closed before any attempt to power it on”
resolvent ： Open with administrator privileges VirtualBox
remarks 2：ubuntu20.024 Generate static IP Method

# ubuntu20.04 It's using netplan To manage network
cd /etc/netplan
#  Copy the file before modifying 
sudo cp 00-installer-config.yaml 00-installer-config.yaml.copy

Change the configuration file to

network:
	ehernets:
		ens33:
			dhcp4: no
			addresses: [192.168.1.100/24]  #  static state IP Address 
			gateway4: 192.168.1.1 #  default gateway 
	version： 2

Make configuration effective

sudo netplan apply

But then there will be a problem , You can't access the Internet , Need configuration DNS Information

#  Go to configuration file 
vim /etc/systemd/resolved.conf
#  Set as follows ：
DNS=8.8.8.8
#  restart 

remarks 2：win10 Two computers under the LAN cannot ping Same as ： Unable to access target host
https://blog.csdn.net/qq_35132089/article/details/114385192
remarks 3： stay ubuntu Install in nexus3, Its localhost:8081 Can't access ,nexus Can only be