Installing Plex in a systemd-nspawn container

plex-systemd-nspawn-setup.sh

CONTAINER_NAME="plex"
CONTAINER_ROOT="/var/lib/machines/$CONTAINER_NAME"
BRIDGE_INTERFACE=br0

mkdir "$CONTAINER_ROOT"
sudo dnf --releasever=25 --installroot="$CONTAINER_ROOT" install systemd passwd dnf fedora-release NetworkManager
systemd-nspawn -D "$CONTAINER_ROOT" --network-bridge="$BRIDGE_INTERFACE"
# Install Plex RPM here, then 'exit' or press Ctrl+] 3x to kill container

mkdir -p /etc/systemd/nspawn
cat << EOF > "/etc/systemd/nspawn/${CONTAINER_NAME}.nspawn"
[Network]
VirtualEthernet=no
Bridge=$BRIDGE_INTERFACE

[Files]
BindReadOnly=/your/plex/media
TemporaryFileSystem=/tmp
EOF
systemctl enable machines.target
systemctl enable "systemd-nspawn@${CONTAINER_NAME}"
systemctl start "systemd-nspawn@${CONTAINER_NAME}"

# If you ever want to open a shell to the container
machinectl login "$CONTAINER_NAME"

# If you want a read-write bind, to avoid 'permission denied' errors you'll want to chown any R/W mapped folders (on the host)
# to be based on the container's UID offset. The commands below demonstrate how to determine the UID offset for the plex user
# for a given container container.
CONTAINER_PLEX_UID=$(systemd-run -q -t id plex | grep -Eo 'uid=([0-9]+)' | cut -d'=' -f2)
let HOST_PLEX_ID=$CONTAINER_BASE_UID+$CONTAINER_PLEX_UID
chown -R $HOST_PLEX_ID /your/rw/mapped/folder