Historic „hexopi.sh” removed.
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31ca3ec4fe
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203
hexopi.sh
203
hexopi.sh
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#!/usr/bin/env sh
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# SPDX-License-Identifier: GPL-3.0
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# Denis Kanuf <https://denkn.at>
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die() {
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>&2 printf '\e[1;31mdied: %s\e[0m\n' "$*"
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exit 1
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}
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l() {
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>&2 printf '\e[1m%s\e[0m\n' "$*"
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}
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d() {
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>&2 printf '\e[1;34m# %s\e[0m\n' "$*"
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"$@" || die "$*"
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}
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MNAME=octoprint
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MDIR=/var/lib/machines/$MNAME
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TDIR=/var/lib/machines/$MNAME-template
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DEVPTN='/dev/ttyUSB*'
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LICENSE="$(cat <<EOF
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# SPDX-License-Identifier: GPL-3.0
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# Denis Knauf <https://denkn.at>
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EOF
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)"
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alias OP='d systemd-nspawn --machine=$MNAME --hostname=$MNAME --directory="$MDIR" --tmpfs=/run --tmpfs=/run/lock'
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t_mkdir() {
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for d
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do
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d install -d "$TDIR/$d"
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done
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}
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###############################################################################
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ho_install() {
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d apt install -y systemd-container debootstrap cron-apt dnsmasq
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d dd of=/etc/cron-apt/action.d/6-upgrade <<EOF
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safe-upgrade -y
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EOF
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if [ -d "$MDIR" ]
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then
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l skipping debootstrap
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else
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d rm -rf "$MDIR".tmp
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d debootstrap --include=systemd-container stable "$MDIR".tmp
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d mv "$MDIR".tmp "$MDIR"
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fi
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OP apt update
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OP apt dist-upgrade -y
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OP apt install -y nullmailer python3-pip cron-apt ffmpeg
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OP pip3 install octoprint
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OP sh -c 'getent passwd octoprint || useradd -mrUd /var/lib/octoprint -G dialout octoprint'
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d install -o root -g root -m 0755 "$0" /usr/local/sbin/hexapi
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d install -o root -g root -m 0755 "$0" "$MDIR"/usr/local/sbin/hexapi
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d dd of="$MDIR"/etc/cron-apt/action.d/6-upgrade <<EOF
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safe-upgrade -y
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EOF
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d dd of=/etc/systemd/system/octoprint-container@.service <<EOF
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${LICENSE}
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# Based on systemd-nspawn@.service
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[Unit]
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Description=OctoPrint Container for %i
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Documentation=man:systemd-nspawn(1)
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PartOf=machines.target
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Before=machines.target
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After=network.target systemd-resolved.service
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RequiresMountsFor=/var/lib/machines
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BindTo=dev-%i.device
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[Service]
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ExecStart=/usr/bin/systemd-nspawn --quiet --keep-unit --boot --link-journal=try-guest \
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--settings=override \
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--directory=/var/lib/machines/octoprint@ttyUSB0 --template=/var/lib/machines/octoprint-template \
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--overlay=/var/lib/machines/octoprint/etc:/var/lib/machines/octoprint@%i/etc:/etc \
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--bind-ro=/var/lib/machines/octoprint/usr:/usr --bind=/dev/%i --machine=%i --hostname=%i
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KillMode=mixed
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Type=notify
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RestartForceExitStatus=133
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SuccessExitStatus=133
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WatchdogSec=3min
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Slice=machine.slice
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Delegate=yes
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TasksMax=16384
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# Enforce a strict device policy, similar to the one nspawn configures when it
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# allocates its own scope unit. Make sure to keep these policies in sync if you
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# change them!
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DevicePolicy=closed
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DeviceAllow=/dev/net/tun rwm
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DeviceAllow=char-pts rw
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# nspawn itself needs access to /dev/loop-control and /dev/loop, to implement
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# the --image= option. Add these here, too.
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DeviceAllow=/dev/loop-control rw
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DeviceAllow=block-loop rw
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DeviceAllow=block-blkext rw
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# nspawn can set up LUKS encrypted loopback files, in which case it needs
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# access to /dev/mapper/control and the block devices /dev/mapper/*.
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DeviceAllow=/dev/mapper/control rw
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DeviceAllow=block-device-mapper rw
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# octoprint needs access to serial-interfaces.
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DeviceAllow=/dev/%i rw
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DeviceAllow=char-ttyUSB rw
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[Install]
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WantedBy=machines.target
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EOF
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d dd of="/etc/udev/rules.d/50-octoprint-container.rules" <<EOF
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SUBSYSTEMS=="usb", KERNEL=="ttyUSB*", ACTION=="add", TAG+="systemd", ENV{SYSTEMD_WANTS}+="octoprint-container@%k.service" ENV{SYSTEMD_ALIAS}+="/dev/%k"
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EOF
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d dd of="$MDIR"/etc/systemd/system/octoprint-init.service <<EOF
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${LICENSE}
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[Unit]
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Description=Initialize Octoprint 3d-printer web interface
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Before=octoprint.service
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[Service]
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Type=oneshot
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ExecStart=/usr/local/sbin/hexapi install_env
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[Install]
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WantedBy=multi-user.target
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EOF
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d ln -fs ../octoprint-init.service "$MDIR"/etc/systemd/system/multi-user.target.wants/octoprint-init.service
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d dd of="$MDIR"/etc/systemd/system/octoprint.service <<EOF
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${LICENSE}
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[Unit]
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Description=OctoPrint 3D-printer web interface
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After=octoprint-init.service
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[Service]
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EnvironmentFile=/local/env
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EnvironmentFile=-/env
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ExecStart=/usr/local/bin/octoprint serve --host=\${OCTOPRINT_HOST} --port=\${OCTOPRINT_PORT}
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User=octoprint
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Group=octoprint
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[Install]
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WantedBy=multi-user.target
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EOF
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t_mkdir /dev /media /opt /etc /mnt /usr /usr/lib /local /home /srv /run /boot /tmp /root /var \
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/var/backups /var/opt /var/lib /var/local /var/spool /var/spool/cron /var/spool/rsyslog \
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/var/spool/mail /var/log /var/cache /var/tmp /var/mail /proc /sys
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d systemctl daemon-reload
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}
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###############################################################################
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ho_list() {
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for f in $DEVPTN
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do
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echo "found: $f"
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done
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}
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###############################################################################
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ho_environment() {
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device=$(hostname)
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if [ "$device" = "${device#ttyUSB}" ]
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then
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>&2 echo "not a container for running octoprint - no device"
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exit 0
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elif [ -e "/dev/$device" ]
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then
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> /local/env echo OCTOPRINT_HOST=0.0.0.0
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>>/local/env echo OCTOPRINT_PORT=$((2000+${device#*USB}))
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install -o octoprint -g octoprint -m 700 -d /var/lib/octoprint
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/usr/bin/systemctl enable --no-block --now octoprint.service
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/usr/bin/systemctl disable octoprint-init.service
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else
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>&2 echo "Device not found: $device"
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exit 1
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fi
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}
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###############################################################################
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case "$1" in
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install) ho_install ;;
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list) ho_list ;;
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install_env) ho_environment ;;
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*)
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>&2 echo "Usage: $0 install"
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exit 1
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;;
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esac
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