105 lines
2.9 KiB
Bash
Executable File
105 lines
2.9 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (c) 2019 Mischa Peters <mischa @ openbsd.amsterdam>
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#
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# Permission to use, copy, modify, and distribute this software for any
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# purpose with or without fee is hereby granted, provided that the above
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# copyright notice and this permission notice appear in all copies.
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#
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# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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#
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main () {
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CONF_FILE="$PWD/_deploy.conf"
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[ -f "$CONF_FILE" ] && . "$CONF_FILE"
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file=${VMS}/$1
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if [ -f "$file" ]; then
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echo "reading $file"
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. "$file"
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backup_image "$file"
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remove_user "$file"
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move_file "$file"
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else
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echo "ERROR file doesn't exist: ${file}"
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fi
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}
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check_instance() {
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# Check if the instance name exists, otherwise return filename as VM.
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# Takes vm*.txt and instance
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# prints either filename or instance variable
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if test -z "$2"
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then echo "$1" | sed "s@^$VMS@@;s@^/@@;s/\\.txt$//"
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else echo "$2"
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fi
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}
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check_owner() {
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# Check if the owner name exists, otherwise returns username.
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# Takes username and owner
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# prints either owner or username
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if test -z "$2"
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then echo "$1"
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else echo "$2"
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fi
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}
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check_format() {
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# Check if the image format exists, otherwise returns img.
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# Takes format
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# prints either format or img
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if test -z "$1"
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then echo "${FORMAT}"
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else echo "$1"
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fi
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}
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backup_image() {
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filename=$1
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_instance=$(check_instance "$filename" "$instance")
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_format=$(check_format "$format")
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if [ -f "${IMAGES}/${_instance}.${_format}" ]; then
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mv ${IMAGES}/${_instance}.${_format} ${IMAGES}/${_instance}.${_format}-backup
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echo "vmm(4)/vmd(8) files moved: ${IMAGES}/${_instance}.${_format} ${IMAGES}/${_instance}.${_format}-backup"
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else
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echo "ERROR vmm(4)/vmd(8) files moved: ${IMAGES}/${_instance}.${_format} doesn't exist"
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fi
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}
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remove_user() {
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_owner=$(check_owner "$username" "$owner")
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if [ -n "$_owner" ]; then
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if grep -e "^${_owner}:" /etc/passwd > /dev/null; then
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userdel -r "$_owner"
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echo "userdel(8) removal: $_owner"
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else
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echo "ERROR userdel(8) removal: $_owner doesn't exist"
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fi
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if grep -e "^${_owner}:" /etc/group > /dev/null; then
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groupdel "$_owner"
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echo "groupdel(8) removal: $_owner"
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else
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echo "ERROR groupdel(8) removal: $_owner doesn't exist"
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fi
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fi
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}
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move_file() {
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filename=$1
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cp ${filename} ${filename}-backup
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echo "cp(1): ${filename} ${filename}-backup"
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mv ${filename} ${filename}.free
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echo "mv(1): ${filename} ${filename}.free"
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chown -R mischa:mischa ${filename}-backup ${filename}.free
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}
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main "$@"
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