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574 lines
16 KiB
574 lines
16 KiB
#!/bin/bash
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. /etc/shlib
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include common
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include parse
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include cmdline
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include config
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[[ "${BASH_SOURCE[0]}" != "${0}" ]] && SOURCED=true
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version=0.1
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desc='Manage 0k related installs'
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help=""
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##
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## Functions
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##
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is-port-open() {
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local host="$1" port="$2" timeout=5
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start="$SECONDS"
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debug "Testing if $host's port $2 is open ..."
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while true; do
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timeout 1 bash -c "</dev/tcp/${host}/${port}" >/dev/null 2>&1 && break
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sleep 0.2
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if [ "$((SECONDS - start))" -gt "$timeout" ]; then
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return 1
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fi
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done
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}
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resolve() {
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local ent hostname="$1"
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debug "Resolving $1 ..."
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if ent=$(getent ahosts "$hostname"); then
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ent=$(echo "$ent" | egrep ^"[0-9]+.[0-9]+.[0-9]+.[0-9]+\s+" | \
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head -n 1 | awk '{ print $1 }')
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debug " .. resolved $1 to $ent."
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echo "$ent"
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else
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debug " .. couldn't resolve $1."
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return 1
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fi
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}
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set_errlvl() { return "${1:-1}"; }
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export master_pid=$$
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ssh:open() {
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local hostname ssh_cmd ssh_options
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ssh_cmd=(ssh)
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ssh_options=()
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while [ "$#" != 0 ]; do
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case "$1" in
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"--stdin-password")
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ssh_cmd=(sshpass "${ssh_cmd[@]}")
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;;
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-o)
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ssh_options+=("$1" "$2")
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shift
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;;
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*)
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[ -z "$hostname" ] && hostname="$1" || {
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err "Surnumerous positional argument '$1'. Expecting only hostname."
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return 1
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}
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;;
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esac
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shift
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done
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full_cmd=(
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"${ssh_cmd[@]}"
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-o ControlPath=/tmp/ssh-control-master-${master_pid}-$hostname \
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-o ControlMaster=auto -o ControlPersist=900 \
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-o ConnectTimeout=5 -o StrictHostKeyChecking=no \
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"${ssh_options[@]}" \
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"$hostname" "$@" -- true)
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"${full_cmd[@]}" </dev/null >/dev/null 2>&1 || {
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err "Failed: ${full_cmd[*]}"
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return 1
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}
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trap_add EXIT,INT 'ssh:quit "$hostname"'
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}
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ssh:open-try() {
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local opts hostnames
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opts=()
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hostnames=()
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while [ "$#" != 0 ]; do
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case "$1" in
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-o)
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opts+=("$1" "$2")
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shift
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;;
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*)
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hostnames+=("$1")
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;;
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esac
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shift
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done
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password=''
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for host in "${hostnames[@]}"; do
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debug "Trying $host with publickey."
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ssh:open -o PreferredAuthentications=publickey \
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"${opts[@]}" \
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"$host" >/dev/null 2>&1 && {
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echo "$host"$'\n'"$password"$'\n'
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return 0
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}
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debug " .. failed connecting to $host with publickey."
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done
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local times=0 password
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while [ "$((++times))" -le 3 ]; do
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read -sp "$HOST's password: " password
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errlvl="$?"
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echo >&2
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if [ "$errlvl" -gt 0 ]; then
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exit 1
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fi
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for host in "${hostnames[@]}"; do
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debug "Trying $host with password ($times/3)"
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echo "$password" | ssh:open -o PreferredAuthentications=password \
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--stdin-password \
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"${opts[@]}" \
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"$host" >/dev/null 2>&1 && {
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echo "$host"$'\n'"$password"$'\n'
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return 0
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}
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debug " .. failed connecting to $host with password."
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done
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err "login failed. Try again... ($((times+1))/3)"
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done
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return 1
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}
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ssh:run() {
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local hostname="$1" ssh_options cmd
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shift
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ssh_options=()
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cmd=()
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while [ "$#" != 0 ]; do
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case "$1" in
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"--")
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shift
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cmd+=("$@")
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break
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;;
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*)
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ssh_options+=("$1")
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;;
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esac
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shift
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done
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#echo "$DARKCYAN$hostname$NORMAL $WHITE\$$NORMAL" "$@"
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debug "Running cmd: ${cmd[@]}"
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for arg in "${cmd[@]}"; do
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debug "$arg"
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done
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{
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{
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ssh -o ControlPath=/tmp/ssh-control-master-${master_pid}-$hostname \
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-o ControlMaster=auto -o ControlPersist=900 \
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-o "StrictHostKeyChecking=no" \
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"$hostname" "${ssh_options[@]}" -- "${cmd[@]}"
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} 3>&1 1>&2 2>&3 ## | sed -r "s/^/$DARKCYAN$hostname$NORMAL $DARKRED\!$NORMAL /g"
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set_errlvl "${PIPESTATUS[0]}"
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} 3>&1 1>&2 2>&3
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}
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ssh:quit() {
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local hostname="$1"
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shift
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ssh -o ControlPath=/tmp/ssh-control-master-${master_pid} \
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-o ControlMaster=auto -o ControlPersist=900 -O exit \
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"$hostname" 2>/dev/null
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}
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is_ovh_domain_name() {
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local domain="$1"
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[[ "$domain" == *.ovh.net ]] && return 0
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[[ "$domain" == "ns"*".ip-"*".eu" ]] && return 0
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return 1
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}
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is_ovh_hostname() {
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local domain="$1"
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[[ "$domain" =~ ^vps-[0-9a-f]*$ ]] && return 0
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[[ "$domain" =~ ^vps[0-9]*$ ]] && return 0
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return 1
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}
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vps_connection_check() {
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local vps="$1"
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ip=$(resolve "$vps") ||
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{ echo "${DARKRED}no-resolve${NORMAL}"; return 1; }
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is-port-open "$ip" "22" </dev/null ||
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{ echo "${DARKRED}no-port-22-open${NORMAL}"; return 1; }
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ssh:open -o ConnectTimeout=2 -o PreferredAuthentications=publickey \
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"root@$vps" >/dev/null 2>&1 ||
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{ echo "${DARKRED}no-ssh-root-access${NORMAL}"; return 1; }
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}
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vps_check() {
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local vps="$1"
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vps_connection_check "$vps" </dev/null || return 1
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if size=$(
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echo "df /srv -h | tail -n +2 | sed -r 's/ +/ /g' | cut -f 5 -d ' ' | cut -f 1 -d %" |
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ssh:run "root@$vps" -- bash); then
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if [ "$size" -gt "90" ]; then
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echo "${DARKRED}above-90%-disk-usage${NORMAL}"
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elif [ "$size" -gt "75" ]; then
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echo "${DARKYELLOW}above-75%-disk-usage${NORMAL}"
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fi
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else
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echo "${DARKRED}no-size${NORMAL}"
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fi </dev/null
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compose_content=$(ssh:run "root@$vps" -- cat /opt/apps/myc-deploy/compose.yml </dev/null) ||
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{ echo "${DARKRED}no-compose${NORMAL}"; return 1; }
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echo "$compose_content" | grep backup >/dev/null 2>&1 ||
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{ echo "${DARKRED}no-backup${NORMAL}"; return 1; }
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}
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vps_install_backup() {
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local vps="$1" admin server
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vps_connection_check "$vps" </dev/null || return 1
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read-0 admin server
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if ! type=$(ssh:run "root@$vps" -- vps get-type); then
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err "Could not get type."
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return 1
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fi
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if ! out=$(ssh:run "root@$vps" -- vps install backup "$server" 2>&1); then
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err "Command 'vps install backup $server' failed."
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return 1
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fi
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already_present=
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if e "$out" | grep "^II Entry for service .* is already present" >/dev/null 2>&1; then
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already_present=1
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info "Backup entry is already present in 'compose.yml' of '$vps'"
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fi
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out="${out%$'\n'}"
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out="${out#*$'\n'}"
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key="${out%\'*}"
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key="${key##*\'}"
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if ! [[ "$key" =~ ^"ssh-rsa "[a-zA-Z0-9/+]+" "[a-zA-Z0-9._-]+"@"[a-zA-Z0-9._-]+$ ]]; then
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err "Unexpected output from 'vps install backup $server'. Can't find key."
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echo "$out" | prefix " ${GRAY}|$NORMAL " >&2
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echo " Extracted key:" >&2
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echo "$key" | prefix " ${GRAY}|$NORMAL " >&2
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return 1
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fi
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if [ "$type" == "compose" ] && [ -z "$already_present" ]; then
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ssh:run "root@$vps" -- compose --debug up || {
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err "Command 'compose --debug up' failed."
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return 1
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}
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fi
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dest="$server"
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dest="${dest%/*}"
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ssh_options=()
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if [[ "$dest" == *":"* ]]; then
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port="${dest##*:}"
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dest="${dest%%:*}"
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ssh_options=(-p "$port")
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else
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port=""
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dest="${dest%%:*}"
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fi
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cmd=(ssh "${ssh_options[@]}" "$admin"@"$dest" ssh-key add "$key")
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echo "${WHITE}Launching:${NORMAL} ${cmd[@]}"
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"${cmd[@]}" || {
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err "Failed add key to backup server '$dest'."
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return 1
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}
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echo "${WHITE}Launching backup${NORMAL} from '$vps'"
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ssh:run "root@$vps" -- vps backup || {
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err "First backup failed to run."
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return 1
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}
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echo "Backup is ${GREEN}up and running${NORMAL}."
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}
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vps_udpate() {
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local vps="$1"
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vps_connection_check "$vps" || return 1
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ssh:run "root@$vps" -- myc-update </dev/null
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}
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vps_bash() {
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local vps="$1"
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vps_connection_check "$vps" </dev/null || return 1
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ssh:run "root@$vps" -- bash
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}
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vps_mux() {
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local fn="$1" vps_done VPS max_size vps
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shift
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VPS=($(printf "%s\n" "$@" | sort))
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max_size=0
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declare -A vps_done;
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new_vps=()
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for name in "${VPS[@]}"; do
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[ -n "${vps_done[$name]}" ] && {
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warn "duplicate vps '$name' provided. Ignoring."
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continue
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}
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vps_done["$name"]=1
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new_vps+=("$name")
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size_name="${#name}"
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[ "$max_size" -lt "${size_name}" ] &&
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max_size="$size_name"
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done
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settmpdir "_0KM_TMP_DIR"
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cat > "$_0KM_TMP_DIR/code"
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for vps in "${new_vps[@]}"; do
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label=$(printf "%-${max_size}s" "$vps")
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(
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{
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{
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"$fn" "$vps" < "$_0KM_TMP_DIR/code"
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} 3>&1 1>&2 2>&3 | sed -r "s/^/$DARKCYAN$label$NORMAL $DARKRED\!$NORMAL /g"
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set_errlvl "${PIPESTATUS[0]}"
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} 3>&1 1>&2 2>&3 | sed -r "s/^/$DARKCYAN$label$NORMAL $DARKGRAY\|$NORMAL /g"
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set_errlvl "${PIPESTATUS[0]}"
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) &
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done
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wait
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}
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[ "$SOURCED" ] && return 0
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##
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## Command line processing
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##
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cmdline.spec.gnu
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cmdline.spec.reporting
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cmdline.spec.gnu vps-setup
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cmdline.spec::cmd:vps-setup:run() {
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: :posarg: HOST 'Target host to check/fix ssh-access'
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depends sshpass shyaml
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KEY_PATH="ssh-access.public-keys"
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local keys=$(config get-value -y "ssh-access.public-keys") || true
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if [ -z "$keys" ]; then
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err "No ssh publickeys configured in config file."
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echo " Looking for keys in ${WHITE}${KEY_PATH}${NORMAL}" \
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"in config file." >&2
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config:exists --message 2>&1 | prefix " "
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if [ "${PIPESTATUS[0]}" == "0" ]; then
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echo " Config file found in $(config:filename)"
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fi
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return 1
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fi
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local tkey=$(e "$keys" | shyaml get-type)
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if [ "$tkey" != "sequence" ]; then
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err "Value type of ${WHITE}${KEY_PATH}${NORMAL} unexpected (is $tkey, expecting sequence)."
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echo " Check content of $(config:filename), and make sure to use a sequence." >&2
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return 1
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fi
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local IP NAME keys host_pass_connected
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if ! IP=$(resolve "$HOST"); then
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err "'$HOST' name unresolvable."
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exit 1
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fi
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NAME="$HOST"
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if [ "$IP" != "$HOST" ]; then
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NAME="$HOST ($IP)"
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fi
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if ! is-port-open "$IP" "22"; then
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err "$NAME unreachable or port 22 closed."
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exit 1
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fi
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debug "Host $IP's port 22 is open."
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if ! host_pass_connected=$(ssh:open-try \
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{root,debian}@"$HOST"); then
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err "Could not connect to {root,debian}@$HOST with publickey nor password."
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exit 1
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fi
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read-0a host password <<<"$host_pass_connected"
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sudo_if_necessary=
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if [ "$password" -o "${host%%@*}" != "root" ]; then
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if ! ssh:run "$host" -- sudo -n true >/dev/null 2>&1; then
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err "Couldn't do a password-less sudo from $host."
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echo " This is not yet supported."
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exit 1
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else
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sudo_if_necessary=sudo
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fi
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fi
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Section Checking access
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while read-0 key; do
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prefix="${key%% *}"
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if [ "$prefix" != "ssh-rsa" ]; then
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err "Unsupported key:"$'\n'"$key"
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return 1
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fi
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label="${key##* }"
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Elt "considering adding key ${DARKYELLOW}$label${NORMAL}"
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dest="/root/.ssh/authorized_keys"
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if ssh:run "$host" -- $sudo_if_necessary grep "\"$key\"" "$dest" >/dev/null 2>&1 </dev/null; then
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print_info "already present"
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print_status noop
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Feed
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else
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if echo "$key" | ssh:run "$host" -- $sudo_if_necessary tee -a "$dest" >/dev/null; then
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print_info added
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else
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echo
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Feedback failure
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return 1
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fi
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Feedback success
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fi
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done < <(e "$keys" | shyaml get-values-0)
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Section Checking ovh hostname file
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Elt "Checking /etc/ovh-hostname"
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if ! ssh:run "$host" -- $sudo_if_necessary [ -e "/etc/ovh-hostname" ]; then
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print_info "creating"
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ssh:run "$host" -- $sudo_if_necessary cp /etc/hostname /etc/ovh-hostname
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ovhname=$(ssh:run "$host" -- $sudo_if_necessary cat /etc/ovh-hostname)
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Elt "Checking /etc/ovh-hostname: $ovhname"
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Feedback || return 1
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else
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ovhname=$(ssh:run "$host" -- $sudo_if_necessary cat /etc/ovh-hostname)
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Elt "Checking /etc/ovh-hostname: $ovhname"
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print_info "already present"
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print_status noop
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Feed
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fi
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if ! is_ovh_domain_name "$HOST" && ! str_is_ipv4 "$HOST"; then
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Section Checking hostname
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Elt "Checking /etc/hostname..."
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if [ "$old" != "$HOST" ]; then
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old="$(ssh:run "$host" -- $sudo_if_necessary cat /etc/hostname)"
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Elt "Hostname is '$old'"
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if is_ovh_hostname "$old"; then
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Elt "Hostname '$old' --> '$HOST'"
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print_info "creating"
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echo "$HOST" | ssh:run "$host" -- $sudo_if_necessary tee /etc/hostname >/dev/null &&
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ssh:run "$host" -- $sudo_if_necessary hostname "$HOST"
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Feedback || return 1
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else
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print_info "not changing"
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print_status noop
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Feed
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fi
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else
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print_info "already set"
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print_status noop
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Feed
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fi
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else
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info "Not changing domain as '$HOST' doesn't seem to be final domain."
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fi
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}
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cmdline.spec.gnu vps-check
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cmdline.spec::cmd:vps-check:run() {
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: :posarg: [VPS...] 'Target host(s) to check'
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echo "" |
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vps_mux vps_check "${VPS[@]}"
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}
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cmdline.spec.gnu vps-install
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cmdline.spec::cmd:vps-install:run() {
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:
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}
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cmdline.spec.gnu backup
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cmdline.spec:vps-install:cmd:backup:run() {
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: :posarg: BACKUP_TARGET 'Backup target.
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(ie: myadmin@backup.domain.org:10023/256)'
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: :posarg: [VPS...] 'Target host(s) to check'
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if [ "${#VPS[@]}" == 0 ]; then
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warn "VPS list provided in command line is empty. Nothing will be done."
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return 0
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fi
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if ! [[ "$BACKUP_TARGET" == *"@"* ]]; then
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err "Missing admin account identifier in backup target."
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|
echo " Have you forgottent to specify an account, ie 'myadmin@<MYBACKUP_SERVER>' ?)"
|
|
return 1
|
|
fi
|
|
|
|
admin=${BACKUP_TARGET%%@*}
|
|
server=${BACKUP_TARGET#*@}
|
|
p0 "$admin" "$server" |
|
|
vps_mux vps_install_backup "${VPS[@]}"
|
|
}
|
|
|
|
|
|
|
|
cmdline.spec.gnu vps-update
|
|
cmdline.spec::cmd:vps-update:run() {
|
|
|
|
: :posarg: [VPS...] 'Target host to check'
|
|
|
|
echo "" |
|
|
vps_mux vps_update "${VPS[@]}"
|
|
}
|
|
|
|
|
|
cmdline.spec.gnu vps-mux
|
|
cmdline.spec::cmd:vps-mux:run() {
|
|
|
|
: :posarg: [VPS...] 'Target host(s) to check'
|
|
|
|
cat | vps_mux vps_bash "${VPS[@]}"
|
|
}
|
|
|
|
|
|
cmdline.spec.gnu vps-space
|
|
cmdline.spec::cmd:vps-space:run() {
|
|
|
|
: :posarg: [VPS...] 'Target host(s) to check'
|
|
|
|
echo "df /srv -h | tail -n +2 | sed -r 's/ +/ /g' | cut -f 2-5 -d ' '" |
|
|
vps_mux vps_bash "${VPS[@]}"
|
|
}
|
|
|
|
|
|
|
|
|
|
cmdline::parse "$@"
|