Provisioning Scripts that I use for managing containers running DOTNET 6 projects on LXD/LXC installs under Ubuntu server.

adduser.sh

#!/bin/bash
if [ -z "$1" ]
then
  echo "User name must be provided on first parameter"
  echo "USAGE: createuser.sh <username> <containername>"
  exit 1
fi

if [ -z "$2" ]
then
  echo "Container name must be provided on second parameter"
  echo "USAGE: createuser.sh <username> <containername>"
  exit 1
fi

lxc exec $2 -- adduser --disabled-password --gecos "" $1

createsshkey.sh

#!/bin/bash
if [ -z "$1" ]
then
  echo "User name must be provided on first parameter"
  echo "USAGE: createsshkey.sh <username> <containername>"
  exit 1
fi

if [ -z "$2" ]
then
  echo "Container name must be provided on second parameter"
  echo "USAGE: createsshkey.sh <username> <containername>"
  exit 1
fi

echo "Creating SSH keys for user $1 on container $2"

echo "" > empty

puttygen -t rsa -b 2048 -C "$1@$2" -q --old-passphrase empty -o $1-$2.ppk
puttygen -L $1-$2.ppk > $1-$2.pub

rm empty

echo "Adding keys to container"
lxc exec $2 -- mkdir /home/$1/.ssh
lxc file push $1-$2.pub $2/home/$1/.ssh/authorized_keys
lxc exec $2 -- chown $1:$1 /home/$1/.ssh
lxc exec $2 -- chown $1:$1 /home/$1/.ssh/authorized_keys
lxc exec $2 -- chmod 700 /home/$1/.ssh
lxc exec $2 -- chmod 600 /home/$1/.ssh/authorized_keys

rm $1-$2.pub

ipaddr=`lxc list -c4 --format csv $2 | cut -d' ' -f1`

echo "DONE! - Please copy $1-$2.ppk to your windows machine,"
echo "store it in a safe place,"
echo "then add it to a putty profile to login to container"
echo " '$2' at '$ipaddr'"

deleteuser.sh

#!/bin/bash
if [ -z "$1" ]
then
  echo "User name must be provided on first parameter"
  echo "USAGE: createuser.sh <username> <containername>"
  exit 1
fi

if [ -z "$2" ]
then
  echo "Container name must be provided on second parameter"
  echo "USAGE: createuser.sh <username> <containername>"
  exit 1
fi

lxc exec $2 -- deluser --remove-home $1