Creating LXC/LXD Images

Get the local ip address of server

lxcmachine@lxcuser:~$ ifconfig eth0      Link encap:Ethernet  HWaddr 0a:74:c8:bb:b3:2c            inet addr:172.31.32.48  Bcast:172.31.47.255  Mask:255.255.240.0          inet6 addr: fe80::874:c8ff:febb:b32c/64 Scope:Link          UP BROADCAST RUNNING MULTICAST  MTU:9001  Metric:1          RX packets:6621 errors:0 dropped:0 overruns:0 frame:0          TX packets:1465 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:1000           RX bytes:8209848 (8.2 MB)  TX bytes:769272 (769.2 KB)lo        Link encap:Local Loopback            inet addr:127.0.0.1  Mask:255.0.0.0          inet6 addr: ::1/128 Scope:Host          UP LOOPBACK RUNNING  MTU:65536  Metric:1          RX packets:192 errors:0 dropped:0 overruns:0 frame:0          TX packets:192 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:1           RX bytes:15864 (15.8 KB)  TX bytes:15864 (15.8 KB)

Set the https port to listen to

lxcmachine@lxcuser:~$ lxc config set core.https_address "[::]:8443"
Generating a client certificate. This may take a minute...
If this is your first time using LXD, you should also run: sudo lxd init
To start your first container, try: lxc launch ubuntu:16.04

Set the password for the lxc remote host

lxcmachine@lxcuser:~$ lxc config set core.trust_password yourpassword

Login to local lxc server and add remote lxc server

lxcmachine@lxcuser:~$ lxc remote add remotelxc 172.31.32.48
Certificate fingerprint: a50785a6bae49089567b111d1d443f258662cc1fcf3fcd7a2085afb8c6391893ok (y/n)? y
Admin password for remotelxc:
Client certificate stored at server:  remotelxc

List remote lxc server

lxcmachine@lxcuser:~$ lxc list remotelxc:
+------+-------+------+------+------+-----------+
| NAME | STATE | IPV4 | IPV6 | TYPE | SNAPSHOTS |
+------+-------+------+------+------+-----------+

Publish container image

lxcmachine@lxcuser:~$ lxc publish web/initialconfig --alias nginx-example 
Container published with fingerprint: c6bd5aaeaff448349f58f6afe6cfe2735ead6e466a8bee9ac70b6ad0498338db

Launch container on remote

lxcmachine@lxcuser:~$ lxc launch nginx-example remotelxc:new-nginx-server
Creating new-nginx-server
Starting new-nginx-server        
 lxcmachine@lxcuser:~$ lxc list remotelxc:
+------------------+---------+------+------+------------+-----------+|       NAME       |  STATE  | IPV4 | IPV6 |    TYPE    | SNAPSHOTS |
+------------------+---------+------+------+------------+-----------+| new-nginx-server | RUNNING | 10.191.207.251 (eth0) |  d85:4265:5a21:1307:216:3eff:fe13:3c4e (eth0)| PERSISTENT | 0       |
+------------------+---------+------+------+------------+-----------+

Export container image

lxcmachine@lxcuser:~$ mkdir export-nginx
lxcmachine@lxcuser:~$ lxc image export nginx-example export-nginx/
Image exported successfully!
lxcmachine@lxcuser:~$ ls export-nginx/
c6bd5aaeaff448349f58f6afe6cfe2735ead6e466a8bee9ac70b6ad0498338db.tar.gz