Amazon-Ec2
ec2-automate-backup-awscli.sh - 清除不起作用？
我最近實現了一個創建卷快照的腳本。我通過一個 cron 作業執行這個腳本，該作業執行良好，除了刪除快照的部分。
當我執行創建快照的命令時，我包含“
-k 3”，它應該用標籤標記新創建的快照，表明它應該在三天內被刪除。這是我的 Cron 執行的命令：
sudo sh /home/ubuntu/scripts/ec2-automate-backup-awscli.sh -r eu-west-1 -v "vol-2abaf42s" -k 3 -p -n -c /root/bin/cron-primer.sh -l "os-server"這是錯誤輸出：
/home/ubuntu/scripts/ec2-automate-backup-awscli.sh: 182: /home/ubuntu/scripts/ec2-automate-backup-awscli.sh: [[: not found /home/ubuntu/scripts/ec2-automate-backup-awscli.sh: 191: /home/ubuntu/scripts/ec2-automate-backup-awscli.sh: [[: not found /home/ubuntu/scripts/ec2-automate-backup-awscli.sh: 21: /home/ubuntu/scripts/ec2-automate-backup-awscli.sh: [[: not found /home/ubuntu/scripts/ec2-automate-backup-awscli.sh: 21: /home/ubuntu/scripts/ec2-automate-backup-awscli.sh: [[: not found /home/ubuntu/scripts/ec2-automate-backup-awscli.sh: 21: /home/ubuntu/scripts/ec2-automate-backup-awscli.sh: [[: not found /home/ubuntu/scripts/ec2-automate-backup-awscli.sh: 21: /home/ubuntu/scripts/ec2-automate-backup-awscli.sh: [[: not found /home/ubuntu/scripts/ec2-automate-backup-awscli.sh: 207: /home/ubuntu/scripts/ec2-automate-backup-awscli.sh: [[: not found /home/ubuntu/scripts/ec2-automate-backup-awscli.sh: 31: /home/ubuntu/scripts/ec2-automate-backup-awscli.sh: [[: not found /home/ubuntu/scripts/ec2-automate-backup-awscli.sh: 48: /home/ubuntu/scripts/ec2-automate-backup-awscli.sh: [[: not found /home/ubuntu/scripts/ec2-automate-backup-awscli.sh: 224: /home/ubuntu/scripts/ec2-automate-backup-awscli.sh: [[: not found /home/ubuntu/scripts/ec2-automate-backup-awscli.sh: 68: /home/ubuntu/scripts/ec2-automate-backup-awscli.sh: [[: not found /home/ubuntu/scripts/ec2-automate-backup-awscli.sh: 73: /home/ubuntu/scripts/ec2-automate-backup-awscli.sh: [[: not found /home/ubuntu/scripts/ec2-automate-backup-awscli.sh: 85: /home/ubuntu/scripts/ec2-automate-backup-awscli.sh: [[: not found Snapshot Purging is Starting Now. /home/ubuntu/scripts/ec2-automate-backup-awscli.sh: 133: /home/ubuntu/scripts/ec2-automate-backup-awscli.sh: [[: not found這是我正在使用的腳本：
#!/bin/bash - # Date: 2014-04-12 # Version 0.10 # License Type: GNU GENERAL PUBLIC LICENSE, Version 3 # Author: # Colin Johnson / https://github.com/colinbjohnson / colin@cloudavail.com # Contributors: # Alex Corley / https://github.com/anthroprose # Jon Higgs / https://github.com/jonhiggs # Mike / https://github.com/eyesis # Jeff Vogt / https://github.com/jvogt # Dave Stern / https://github.com/davestern # Josef / https://github.com/J0s3f # buckelij / https://github.com/buckelij #confirms that executables required for succesful script execution are available prerequisite_check() { for prerequisite in basename cut date aws; do #use of "hash" chosen as it is a shell builtin and will add programs to hash table, possibly speeding execution. Use of type also considered - open to suggestions. hash $prerequisite &> /dev/null if [[ $? == 1 ]]; then #has exits with exit status of 70, executable was not found echo "In order to use $app_name, the executable \"$prerequisite\" must be installed." 1>&2 ; exit 70 fi done } #get_EBS_List gets a list of available EBS instances depending upon the selection_method of EBS selection that is provided by user input get_EBS_List() { case $selection_method in volumeid) if [[ -z $volumeid ]]; then echo "The selection method \"volumeid\" (which is $app_name's default selection_method of operation or requested by using the -s volumeid parameter) requires a volumeid (-v volumeid) for operation. Correct usage is as follows: \"-v vol-6d6a0527\",\"-s volumeid -v vol-6d6a0527\" or \"-v \"vol-6d6a0527 vol-636a0112\"\" if multiple volumes are to be selected." 1>&2 ; exit 64 fi ebs_selection_string="--volume-ids $volumeid" ;; tag) if [[ -z $tag ]]; then echo "The selected selection_method \"tag\" (-s tag) requires a valid tag (-t Backup,Values=true) for operation. Correct usage is as follows: \"-s tag -t Backup,Values=true.\"" 1>&2 ; exit 64 fi ebs_selection_string="--filters Name=tag:$tag" ;; *) echo "If you specify a selection_method (-s selection_method) for selecting EBS volumes you must select either \"volumeid\" (-s volumeid) or \"tag\" (-s tag)." 1>&2 ; exit 64 ;; esac #creates a list of all ebs volumes that match the selection string from above ebs_backup_list=$(aws ec2 describe-volumes --region $region $ebs_selection_string --output text --query 'Volumes[*].VolumeId') #takes the output of the previous command ebs_backup_list_result=$(echo $?) if [[ $ebs_backup_list_result -gt 0 ]]; then echo -e "An error occurred when running ec2-describe-volumes. The error returned is below:\n$ebs_backup_list_complete" 1>&2 ; exit 70 fi } create_EBS_Snapshot_Tags() { #snapshot tags holds all tags that need to be applied to a given snapshot - by aggregating tags we ensure that ec2-create-tags is called only onece snapshot_tags="" #if $name_tag_create is true then append ec2ab_${ebs_selected}_$current_date to the variable $snapshot_tags if $name_tag_create then snapshot_tags="$snapshot_tags Key=Name,Value=ec2ab_${ebs_selected}_$current_date" fi #if $hostname_tag_create is true then append --tag InitiatingHost=`hostname -f` to the variable $snapshot_tags if $hostname_tag_create then snapshot_tags="$snapshot_tags Key=InitiatingHost,Value='`hostname -f`'" fi #if $purge_after_date_fe is true, then append $purge_after_date_fe to the variable $snapshot_tags if [[ -n $purge_after_date_fe ]] then snapshot_tags="$snapshot_tags Key=PurgeAfterFE,Value=$purge_after_date_fe Key=PurgeAllow,Value=true" fi if [[ -n $label ]] then snapshot_tags="$snapshot_tags Key=Name,Value=$label" fi #if $user_tags is true, then append Volume=$ebs_selected and Created=$current_date to the variable $snapshot_tags if $user_tags then snapshot_tags="$snapshot_tags Key=Volume,Value=${ebs_selected} Key=Created,Value=$current_date" fi #if $snapshot_tags is not zero length then set the tag on the snapshot using aws ec2 create-tags if [[ -n $snapshot_tags ]] then echo "Tagging Snapshot $ec2_snapshot_resource_id with the following Tags: $snapshot_tags" tags_arugment="--tags $snapshot_tags" aws_ec2_create_tag_result=`aws ec2 create-tags --resources $ec2_snapshot_resource_id --region $region $tags_arugment --output text 2>&1` fi } get_date_binary() { #$(uname -o) (operating system) would be ideal, but OS X / Darwin does not support to -o option #$(uname) on OS X defaults to $(uname -s) and $(uname) on GNU/Linux defaults to $(uname -s) uname_result=$(uname) case $uname_result in Darwin) date_binary="posix" ;; FreeBSD) date_binary="posix" ;; Linux) date_binary="linux-gnu" ;; *) date_binary="unknown" ;; esac } get_purge_after_date_fe() { case $purge_after_input in #any number of numbers followed by a letter "d" or "days" multiplied by 86400 (number of seconds in a day) [0-9]*d) purge_after_value_seconds=$(( ${purge_after_input%?} * 86400 )) ;; #any number of numbers followed by a letter "h" or "hours" multiplied by 3600 (number of seconds in an hour) [0-9]*h) purge_after_value_seconds=$(( ${purge_after_input%?} * 3600 )) ;; #any number of numbers followed by a letter "m" or "minutes" multiplied by 60 (number of seconds in a minute) [0-9]*m) purge_after_value_seconds=$(( ${purge_after_input%?} * 60 ));; #no trailing digits default is days - multiply by 86400 (number of minutes in a day) *) purge_after_value_seconds=$(( $purge_after_input * 86400 ));; esac #based on the date_binary variable, the case statement below will determine the method to use to determine "purge_after_days" in the future case $date_binary in linux-gnu) echo $(date -d +${purge_after_value_seconds}sec -u +%s) ;; posix) echo $(date -v +${purge_after_value_seconds}S -u +%s) ;; *) echo $(date -d +${purge_after_value_seconds}sec -u +%s) ;; esac } purge_EBS_Snapshots() { # snapshot_purge_allowed is a string containing the SnapshotIDs of snapshots # that contain a tag with the key value/pair PurgeAllow=true snapshot_purge_allowed=$(aws ec2 describe-snapshots --region $region --filters Name=tag:PurgeAllow,Values=true --output text --query 'Snapshots[*].SnapshotId') for snapshot_id_evaluated in $snapshot_purge_allowed; do #gets the "PurgeAfterFE" date which is in UTC with UNIX Time format (or xxxxxxxxxx / %s) purge_after_fe=$(aws ec2 describe-snapshots --region $region --snapshot-ids $snapshot_id_evaluated --output text | grep ^TAGS.*PurgeAfterFE | cut -f 3) #if purge_after_date is not set then we have a problem. Need to alert user. if [[ -z $purge_after_fe ]]; then #Alerts user to the fact that a Snapshot was found with PurgeAllow=true but with no PurgeAfterFE date. echo "Snapshot with the Snapshot ID \"$snapshot_id_evaluated\" has the tag \"PurgeAllow=true\" but does not have a \"PurgeAfterFE=xxxxxxxxxx\" key/value pair. $app_name is unable to determine if $snapshot_id_evaluated should be purged." 1>&2 else # if $purge_after_fe is less than $current_date then # PurgeAfterFE is earlier than the current date # and the snapshot can be safely purged if [[ $purge_after_fe < $current_date ]]; then echo "Snapshot \"$snapshot_id_evaluated\" with the PurgeAfterFE date of \"$purge_after_fe\" will be deleted." aws_ec2_delete_snapshot_result=$(aws ec2 delete-snapshot --region $region --snapshot-id $snapshot_id_evaluated --output text 2>&1) fi fi done } app_name=$(basename $0) #sets defaults selection_method="volumeid" #date_binary allows a user to set the "date" binary that is installed on their system and, therefore, the options that will be given to the date binary to perform date calculations date_binary="" #sets the "Name" tag set for a snapshot to false - using "Name" requires that ec2-create-tags be called in addition to ec2-create-snapshot name_tag_create=true #sets the "InitiatingHost" tag set for a snapshot to false hostname_tag_create=false #sets the user_tags feature to false - user_tag creates tags on snapshots - by default each snapshot is tagged with volume_id and current_date timestamp user_tags=false #sets the Purge Snapshot feature to false - if purge_snapshots=true then snapshots will be purged purge_snapshots=true #handles options processing while getopts :l:s:c:r:v:t:k:pnhu opt do case $opt in l) label="$OPTARG";; s) selection_method="$OPTARG";; c) cron_primer="$OPTARG";; r) region="$OPTARG";; v) volumeid="$OPTARG";; t) tag="$OPTARG";; k) purge_after_input="$OPTARG";; n) name_tag_create=true;; h) hostname_tag_create=true;; p) purge_snapshots=true;; u) user_tags=true;; *) echo "Error with Options Input. Cause of failure is most likely that an unsupported parameter was passed or a parameter was passed without a corresponding option." 1>&2 ; exit 64;; esac done #sources "cron_primer" file for running under cron or other restricted environments - this file should contain the variables and environment configuration required for ec2-automate-backup to run correctly if [[ -n $cron_primer ]]; then if [[ -f $cron_primer ]]; then source $cron_primer else echo "Cron Primer File \"$cron_primer\" Could Not Be Found." 1>&2 ; exit 70 fi fi #if region is not set then: if [[ -z $region ]]; then #if the environment variable $EC2_REGION is not set set to us-east-1 if [[ -z $EC2_REGION ]]; then region="us-east-1" else region=$EC2_REGION fi fi #calls prerequisitecheck function to ensure that all executables required for script execution are available prerequisite_check #sets date variable current_date=$(date -u +%s) #sets the PurgeAfterFE tag to the number of seconds that a snapshot should be retained if [[ -n $purge_after_input ]]; then #if the date_binary is not set, call the get_date_binary function if [[ -z $date_binary ]]; then get_date_binary fi purge_after_date_fe=$(get_purge_after_date_fe) echo "Snapshots taken by $app_name will be eligible for purging after the following date (the purge after date given in seconds from epoch): $purge_after_date_fe." fi #get_EBS_List gets a list of EBS instances for which a snapshot is desired. The list of EBS instances depends upon the selection_method that is provided by user input get_EBS_List #the loop below is called once for each volume in $ebs_backup_list - the currently selected EBS volume is passed in as "ebs_selected" for ebs_selected in $ebs_backup_list; do ec2_snapshot_description="${label}" ec2_snapshot_resource_id=$(aws ec2 create-snapshot --region $region --description $ec2_snapshot_description --volume-id $ebs_selected --output text --query SnapshotId 2>&1) if [[ $? != 0 ]]; then echo -e "An error occurred when running ec2-create-snapshot. The error returned is below:\n$ec2_create_snapshot_result" 1>&2 ; exit 70 fi create_EBS_Snapshot_Tags done #if purge_snapshots is true, then run purge_EBS_Snapshots function if $purge_snapshots; then echo "Snapshot Purging is Starting Now." purge_EBS_Snapshots fi
[[是一個 bash 內置命令，在sh.您正在 sh 下執行為 bash 編寫的腳本。
嘗試添加執行權限並
chmod +x ec2-automate-backup-awscli.sh執行sudo /home/ubuntu/scripts/ec2-automate-backup-awscli.sh``sh