65 lines
2.0 KiB
Bash
65 lines
2.0 KiB
Bash
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#! /bin/bash
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#
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# s3restore.sh
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# Companion script to s3backup.sh, this script obtains a listing of recent
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# backups and offers the user a choice to restore from.
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#
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# This script offers no automation; it is intended for use by hand.
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#
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# NOTICE: THIS FILE CONTAINS SECRETS
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# This file may contain the following secrets depending on configuration:
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# * An AWS access key
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# * An AWS session token
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# These are NOT things you want arbitrary readers to access! Ansible will
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# attempt to ensure this file has 0700 permissions, but that won't stop you
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# from changing that yourself
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# DO NOT ALLOW THIS FILE TO BE READ BY NON-ROOT USERS
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# NOTICE: DO NOT MODIFY THIS FILE
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# Any changes made will be clobbered by Ansible
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# Please make any configuration changes in the main repo
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set -e
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url="s3://{{ backup_s3_bucket}}/{{ inventory_hostname }}/"
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# AWS S3 configuration
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# NOTE: THIS IS SECRET INFORMATION
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export AWS_ACCESS_KEY_ID="{{ backup_s3_aws_access_key_id }}"
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export AWS_SECRET_ACCESS_KEY="{{ backup_s3_aws_secret_access_key }}"
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# Obtain a list possible restorable for this host
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declare -a BACKUPS
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printf "Querying S3 for restoreable backups (\e[35m$url\e[0m)...\n"
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while read line; do
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filename="$(echo "$line" | awk '{print $NF}')"
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BACKUPS+=("$filename")
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done < <(aws s3 ls "$url")
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# Present the user with some options
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printf "Possible restorable backups:\n"
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printf "\e[37m\t%s\t%s\n\e[0m" "Index" "Filename"
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for index in "${!BACKUPS[@]}"; do
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printf "\t\e[32m%s\e[0m\t\e[34m%s\e[0m\n" "$index" "${BACKUPS[$index]}"
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done
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# Ensure we can write to pwd
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if ! [ -w "$PWD" ]; then
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printf "To restore a backup, please navigate to a writeable directory\n"
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exit 1
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fi
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# Query for a backup to pull down
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printf "Please select a backup by \e[32mindex\e[0m to pull down\n"
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printf "It will be copied into the current directory as a tarball\n"
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read -p "?" restoreindex
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# Sanity check user input
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if [ -z "${BACKUPS[$restoreindex]}" ]; then
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printf "Invalid selection, aborting: $restoreindex\n"
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exit 2
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fi
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# Copy the thing
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printf "Pulling backup...\n"
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aws s3 cp "$url${BACKUPS[$restoreindex]}" ./
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