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409 lines
12 KiB
409 lines
12 KiB
#!/bin/bash
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MIAOU_BASEDIR=$(readlink -f "$(dirname "$0")/..")
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# shellcheck source=/dev/null
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. "$MIAOU_BASEDIR/lib/functions.sh"
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readonly MIAOU_BASEDIR
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miaou_init
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EXPANDED_CONF="$MIAOU_CONFIGDIR/miaou.expanded.yaml"
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NEW_GROUP=lxd
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readonly NEW_GROUP EXPANDED_CONF
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on_exit() {
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if [[ "$SESSION_RELOAD_REQUIRED" == true ]]; then
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echo "======================================================"
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echo "Session Reload is required (due to new group <$NEW_GROUP>)"
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echo "======================================================"
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fi
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if [ -n "${1:-}" ]; then
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echo "Aborted by $1"
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elif [ "${status:-}" -ne 0 ]; then
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echo "Failure (status $status)"
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fi
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}
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function prepare_lxd {
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local PREFIX="lxd:prepare"
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# test group lxd assign to current user
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if ! groups | grep -q lxd; then
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echo "define lxd and assign to user <$USER>"
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sudo groupadd --force "$NEW_GROUP"
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sudo usermod --append --groups "$NEW_GROUP" "$(whoami)"
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exec sg "$NEW_GROUP" "exec '$0' $(printf "'%s' " SESSION_RELOAD_REQUIRED "$@")"
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# no further processing because exec has been called!
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else
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echo "user <$USER> already belongs to group <lxd>!"
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fi
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sudo /opt/debian-bash/tools/idem_apt_install lxd btrfs-progs
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# test lxdbr0
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if ! lxc network info lxdbr0 &>/dev/null; then
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echo "bridge <lxdbr0> down, so initialization will use default preseed..."
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sudo lxd init
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# cat <<EOF | sudo lxd init --preseed
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# NEW
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# networks:
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# - config:
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# ipv4.address: auto
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# ipv6.address: none
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# description: ""
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# name: lxdbr0
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# type: ""
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# project: default
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# storage_pools:
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# - config:
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# source: /dev/sda4
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# description: ""
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# name: default
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# driver: btrfs
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# profiles:
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# - config: {}
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# description: ""
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# devices:
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# eth0:
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# name: eth0
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# network: lxdbr0
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# type: nic
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# root:
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# path: /
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# pool: default
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# type: disk
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# name: default
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# projects: []
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# cluster: null
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# OLD
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# networks:
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# - config:
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# ipv4.address: auto
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# ipv6.address: none
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# description: ""
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# name: lxdbr0
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# type: ""
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# project: default
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# storage_pools:
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# - config:
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# source: /dev/sda4
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# description: ""
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# name: default
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# driver: btrfs
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# profiles:
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# - config: {}
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# description: ""
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# devices:
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# eth0:
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# name: eth0
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# network: lxdbr0
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# type: nic
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# root:
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# path: /
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# pool: default
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# type: disk
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# name: default
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# projects: []
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# cluster: null
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echo OK
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else
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echo "bridge <lxdbr0> found implies it has been already initialized!"
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fi
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set_alias 'sameuser' "exec @ARG1@ -- su --whitelist-environment container_hostname - $(whoami)"
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set_alias 'login' 'exec @ARGS@ --mode interactive -- /bin/bash -c $@${user:-root} - exec su --whitelist-environment container_hostname - '
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set_alias 'll' 'list -c ns4mDN'
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# test environment container hostname
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local env_container_hostname=$(lxc profile get default environment.container_hostname)
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if [[ -z "$env_container_hostname" ]]; then
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env_container_hostname=$(hostname -s)
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if env | grep -q container_hostname; then
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local previous_container_hostname=$(env | grep container_hostname | cut -d '=' -f2)
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env_container_hostname="$previous_container_hostname $env_container_hostname"
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fi
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echo -n "set environment container_hostname to <$env_container_hostname> ... "
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lxc profile set default environment.container_hostname "$env_container_hostname"
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PREFIX="" echoinfo OK
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else
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echo "environment container_hostname <$env_container_hostname> already defined!"
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fi
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if ! grep -q "root:$(id -u):1" /etc/subuid; then
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echo -n "subuid, subgid allowing <$(whoami)> ..."
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printf "root:$(id -u):1\n" | sudo tee -a /etc/subuid /etc/subgid
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PREFIX="" echoinfo DONE
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# root:1000:1
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# root:100000:65536
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# _lxd:100000:65536
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# <USER>:100000:65536
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else
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echo "subuid, subgid allowing <$(whoami)> already done!"
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fi
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if [[ ! -d "$HOME/LXD/SHARED" ]]; then
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echo -n "$HOME/LXD/SHARED creating ... "
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mkdir "$HOME/LXD/SHARED" -p
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PREFIX="" echoinfo DONE
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else
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echo "folder <$HOME/LXD/SHARED> already created!"
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fi
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if [[ ! -d "$HOME/LXD/BACKUP" ]]; then
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echo -n "$HOME/LXD/SHARED creating ... "
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mkdir "$HOME/LXD/SHARED" -p
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PREFIX="" echoinfo DONE
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else
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echo "folder <$HOME/LXD/BACKUP> already created!"
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fi
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}
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function set_alias {
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local name="$1"
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local command="$2"
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if ! lxc alias list -f csv | grep -q "^$name,"; then
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echo -n "define lxc alias $name ..."
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lxc alias add "$name" "$command"
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PREFIX="" echoinfo OK
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else
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echo "lxc alias "$name" already defined!"
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fi
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}
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function miaou_evalfrombashrc() {
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local PREFIX="miaou:bashrc"
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output=$(
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/opt/debian-bash/tools/append_or_replace \
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"^eval \"\\$\($MIAOU_BASEDIR/lib/install.sh shellenv\)\"$" \
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"eval \"\$($MIAOU_BASEDIR/lib/install.sh shellenv)\"" \
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"$HOME/.bashrc"
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)
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if [[ "$output" == "appended" ]]; then
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echo "new path <$MIAOU_BASEDIR> created!"
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SESSION_RELOAD_REQUIRED=true
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else
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echo "path <$MIAOU_BASEDIR> already loaded!"
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fi
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}
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function ask_target() {
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PS3='Choose miaou target purpose: '
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foods=("Dev" "Beta" "Prod")
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select ans in "${foods[@]}"; do
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builtin echo "${ans^^}"
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break
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done
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}
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function check_credential {
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local PREFIX="check:credential"
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check_yaml_defined_value /etc/miaou/defaults.yaml 'credential.username' &&
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check_yaml_defined_value /etc/miaou/defaults.yaml 'credential.shadow' &&
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check_yaml_defined_value /etc/miaou/defaults.yaml 'credential.email' &&
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check_yaml_defined_value /etc/miaou/defaults.yaml 'credential.password'
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}
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function check_target() {
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case "${TARGET^^}" in
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DEV) ;;
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BETA) ;;
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PROD) ;;
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*)
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if [[ -f /etc/miaou/defaults.yaml ]]; then
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# load already defined target in expanded conf
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TARGET=$(grep -Es "^target:" /etc/miaou/defaults.yaml | cut -d ' ' -f2)
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else
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TARGET=$(ask_target)
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fi
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;;
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esac
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TARGET=${TARGET,,} # downcase
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return 0
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}
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function miaou_configfiles() {
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local PREFIX="miaou:config"
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if [[ ! -d /etc/miaou ]]; then
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echo -n "configuration initializing ..."
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sudo mkdir -p /etc/miaou
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sudo chown "$USER" /etc/miaou
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PREFIX="" echoinfo OK
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fi
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if [[ ! -f /etc/miaou/defaults.yaml ]]; then
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echo -n "building /etc/miaou/defaults.yaml for the first time..."
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shadow_passwd=$(sudo grep "$CURRENT_USER" /etc/shadow | cut -d ':' -f2)
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env current_user="$CURRENT_USER" shadow_passwd="$shadow_passwd" tera -e --env-key env --env-only -t "$MIAOU_BASEDIR/templates/etc/defaults.yaml.j2" -o /etc/miaou/defaults.yaml >/dev/null
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yq ".target=\"$TARGET\"" /etc/miaou/defaults.yaml -i
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PREFIX="" echoinfo OK
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fi
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if [[ ! -f /etc/miaou/miaou.yaml ]]; then
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echo -n "building /etc/miaou/miaou.yaml for the first time..."
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cp "$MIAOU_BASEDIR/templates/etc/miaou.yaml.j2" /etc/miaou/miaou.yaml
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PREFIX="" echoinfo OK
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fi
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PREVIOUS_TARGET=""
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echo "expanded configuration stored in <$MIAOU_CONFIGDIR>!"
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[[ -f "$EXPANDED_CONF" ]] && PREVIOUS_TARGET=$(grep -Es "^target:" "$EXPANDED_CONF" | cut -d ' ' -f2)
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if [[ "$PREVIOUS_TARGET" != "$TARGET" ]]; then
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if [[ -z "$PREVIOUS_TARGET" ]]; then
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echo "new target defined <$TARGET>"
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else
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echowarnn "TARGET has changed from <$PREVIOUS_TARGET> to <$TARGET>, do you agree?"
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if askConfirmation N; then
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echowarn "removing previous settings, please restart <miaou> to apply changes"
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rm "$MIAOU_CONFIGDIR" -rf
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else
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echoerr "TARGET not accepted, exit"
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exit 102
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fi
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fi
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yq ".target=\"$TARGET\"" /etc/miaou/defaults.yaml -i
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else
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echo "target <$TARGET> already defined!"
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fi
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}
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function opt_link() {
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if [[ $MIAOU_BASEDIR != '/opt/miaou' ]]; then
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if [[ -L '/opt/miaou' && -d '/opt/miaou' && $(readlink /opt/miaou) == "$MIAOU_BASEDIR" ]]; then
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echo "symbolic link /opt/miaou already set up!"
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else
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sudo rm -f /opt/miaou
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sudo ln -s "$MIAOU_BASEDIR" /opt/miaou
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echo "symbolic link /opt/miaou successfully defined!"
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fi
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else
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echo "real path /opt/miaou already set up!"
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fi
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}
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function miaou_resolver() {
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local PREFIX="miaou:resolver"
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bridge=$(ip addr show lxdbr0 | grep "inet\b" | awk '{print $2}' | cut -d/ -f1)
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gateway=$(ip route | grep default | cut -d' ' -f3)
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if command -v nmcli &>/dev/null; then
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if [[ ! -f /etc/NetworkManager/dispatcher.d/50-miaou-resolver ]]; then
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echo -n "use NetworkManager dispatcher to deal with LXD bridge automatically..."
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sudo cp "$MIAOU_BASEDIR/templates/network-manager/50-miaou-resolver" /etc/NetworkManager/dispatcher.d/
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sudo chmod +x /etc/NetworkManager/dispatcher.d/50-miaou-resolver
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ACTIVE_CONNECTION=$(nmcli -g NAME connection show --active | head -n1)
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nmcli connection up "$ACTIVE_CONNECTION" &>/dev/null
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PREFIX="" echoinfo OK
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else
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echo "miaou-resolver in NetworkManager dispatcher already initialized!"
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fi
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else
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if ! grep -q "nameserver $bridge" /etc/resolv.conf; then
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echo "customize resolv.conf from scratch (SERVER)..."
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sudo tee /etc/resolv.conf &>/dev/null <<EOF
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nameserver $bridge
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nameserver $gateway
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EOF
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PREFIX="" echoinfo OK
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else
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echo "customize resolv.conf already already defined!"
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fi
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fi
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}
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function extra_dev_desktop {
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# detect if DEV
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# detect if DESKTOP
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:
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}
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function override_lxd_service_to_reload_nftables {
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local PREFIX="lxd:override"
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if [[ ! -d /etc/systemd/system/lxd.service.d ]]; then
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echo -n "override lxd service..."
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sudo mkdir -p /etc/systemd/system/lxd.service.d
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cat <<EOF | sudo tee /etc/systemd/system/lxd.service.d/override.conf
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[Service]
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ExecStartPost=systemctl reload nftables.service
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EOF
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sudo systemctl daemon-reload
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PREFIX="" echo "OK"
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else
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echo "lxd service already overridden!"
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fi
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}
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function ask_for_credential {
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local PREFIX="ask:credential"
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if ! check_credential 2>/dev/null; then
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echo "further details required, please replace any <TO BE DEFINED> by a proper value ...press any key to open editor"
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read -rn1
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editor /etc/miaou/defaults.yaml
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fi
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check_credential
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echo "successfully checked!"
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}
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### MAIN
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if [[ "${1:-}" == "SESSION_RELOAD_REQUIRED" ]]; then
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SESSION_RELOAD_REQUIRED=true
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shift
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else
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SESSION_RELOAD_REQUIRED=false
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fi
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if [[ "${1:-}" == "shellenv" ]]; then
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unset PREFIX
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echo "export MIAOU_BASEDIR=$MIAOU_BASEDIR"
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echo "export PATH=\"\$MIAOU_BASEDIR/scripts\":\$PATH"
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else
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. "$MIAOU_BASEDIR/lib/init.sh"
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trap 'status=$?; on_exit; exit $status' EXIT
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trap 'trap - HUP; on_exit SIGHUP; kill -HUP $$' HUP
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trap 'trap - INT; on_exit SIGINT; kill -INT $$' INT
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trap 'trap - TERM; on_exit SIGTERM; kill -TERM $$' TERM
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PREFIX="miaou"
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: $PREFIX
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TARGET=${1:-}
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CURRENT_USER=$(id -un)
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check_target
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sudo_required
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install_debian_bash
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install_mandatory_commands
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prepare_toolbox
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add_toolbox_sudoers
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prepare_nftables
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prepare_lxd "$@"
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override_lxd_service_to_reload_nftables
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miaou_resolver
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miaou_evalfrombashrc
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miaou_configfiles
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ask_for_credential
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prepare_nftables
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opt_link
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extra_dev_desktop
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if [[ "$SESSION_RELOAD_REQUIRED" == false ]]; then
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echoinfo "successful installation"
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else
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echowarn "please reload your session, .bashrc needs to be reloaded!"
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fi
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fi
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