Try Ubuntu Landscape on Xenial (by quqi99)

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Landscape is used for manage your Ubuntu Cluster remotely. You can install Landscape directly on a machine running Xenial (Ubuntu 16.04),this is called “Landscape On Premises.” It is free for up to 10 physical machines and 10 more virtual machines for a total of 20.

Install Landscape Server

; refer https://askubuntu.com/questions/549809/how-do-i-install-landscape-for-personal-use
sudo ufw disable
sudo add-apt-repository ppa:landscape/17.03
sudo apt update
sudo apt install landscape-server-quickstart  
; register the landscape account using text based web brower,or visit 'https://<server-hostname>'
sudo apt install links  
links https://<server-hostname>

Register Landscape Clients

; now register ubuntu node
; copy /etc/landscape/landscape_server.pem from landscape server to every ubuntu nodes
sudo nano /etc/landscape/client.conf
  ssl_public_key = /etc/landscape/landscape_server.pem
sudo apt install landscape-client
sudo landscape-config --computer-title "node2" --account-name standalone  --url https://xenial/message-system --ping-url http://xenial/ping --ok-no-register --silent
; then accept this node in GUI page

Customized Installation for Landscape by Preseed

1,Prepare preseed.cfg and a customized script lds.sh

export DEBIAN_FRONTEND=noninteractive
apt-get install -y landscape-client
landscape-client --daemon --pid-file /run/landscape.pid
landscape-config --computer-title "node2" --account-name standalone  --url https://xenial/message-system --ping-url http://xenial/ping --ok-no-register --silent --http-proxy PROXY-URL --https-proxy PROXY-URL
kill $(cat /run/landscape.pid)

2,Use ‘python -m SimpleHTTPServer 8080’ to setup web server for them
3,After selecting language press F6 at installer welcome screen
4,Edit boot command and replace “file=/cdrom/preseed/ubuntu-server.seed” with “preseed/url=http://IP/preseed.cfg
5,Press Enter and complete installation

Appendix - How to Create Certificate

; above /etc/landscape/landscape_server.pem is created automatically by landscape-server-quickstart,you can also do it by hand.
; create your own CA (Certificate Authority),then we will have ./demoCA/private/cakey.pem
; refer https://help.landscape.canonical.com/LDS/SSL
/usr/lib/ssl/misc/CA.pl -newca
; generate an SSL certificate signed by your new CA,then we will have newkey.pem
/usr/lib/ssl/misc/CA.pl -newreq-nodes
; sign your newly created SSL certificate with your newly created CA,then we will have newcert.pem
/usr/lib/ssl/misc/CA.pl -signreq
; install the files to Landscape
sudo mv newcert.pem /etc/ssl/certs/landscape.pem
sudo mv newkey.pem /etc/ssl/private/landscape.key
sudo cp demoCA/cacert.pem /etc/ssl/certs/landscape_server_ca.crt
; make Landscape Clients trust the newly created CA
copy /etc/ssl/certs/landscape_server_ca.crt from the LDS server to the client's directory /usr/local/share/ca-certificates/ and run 'sudo update-ca-certificates'. ; adding the certificate file to /etc/landscape/client.conf ssl_public_key = /usr/local/share/ca-certificates/landscape_server_ca.crt
原文链接:https://www.f2er.com/ubuntu/351891.html

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