我正在尝试使用脚本自动备份一个卷。
我遵循这个在github上找到的EBS-Snapshot.sh脚本：github：
我遵循这个在github上找到的EBS-Snapshot.sh脚本：github：
#!/bin/bash
# export EC2_HOME='/etc/ec2' # Make sure you use the API tools, not the AMI tools
# export EC2_BIN=$EC2_HOME/bin
# export PATH=$PATH:$EC2_BIN
# I know all of the above is good to have solution, but not re-usable
# I have captured all of the above in a particular file and lemme execute it
source /etc/environment
PURGE_SNAPSHOT_IN_DAYS=10
EC2_BIN=$EC2_HOME/bin
# store the certificates and private key to your amazon account
MY_CERT='/path/to/certificate-file'
MY_KEY='/path/to/private-file'
# fetching the instance-id from the metadata repository
MY_INSTANCE_ID='your ec2-instance-id'
# temproary file
TMP_FILE='/tmp/rock-ebs-info.txt'
# get list of locally attached volumes via EC2 API:
$EC2_BIN/ec2-describe-volumes -C $MY_CERT -K $MY_KEY > $TMP_FILE
VOLUME_LIST=$(cat $TMP_FILE | grep ${MY_INSTANCE_ID} | awk '{ print $2 }')
sync
#create the snapshots
echo "Create EBS Volume Snapshot - Process started at $(date +%m-%d-%Y-%T)"
echo ""
echo $VOLUME_LIST
for volume in $(echo $VOLUME_LIST); do
NAME=$(cat $TMP_FILE | grep Name | grep $volume | awk '{ print $5 }')
DESC=$NAME-$(date +%m-%d-%Y)
echo "Creating Snapshot for the volume: $volume with description: $DESC"
echo "Snapshot info below:"
$EC2_BIN/ec2-create-snapshot -C $MY_CERT -K $MY_KEY -d $DESC $volume
echo ""
done
echo "Process ended at $(date +%m-%d-%Y-%T)"
echo ""
rm -f $TMP_FILE
#remove those snapshot which are $PURGE_SNAPSHOT_IN_DAYS old
我有两个X509认证文件，实例ID，但我不理解脚本以及如何将要备份的卷参数化。
我不理解第一行（源代码）和EC2_BIN。通过这种配置，它会列出所有的卷并对其进行快照...
关于快照的注释，我该如何更改此行以添加文本？
DESC=$NAME-$(date +%m-%d-%Y)
很抱歉我是初学者，不太理解整个脚本。
编辑：
我使用这段新代码时出现了以下错误：
为卷创建快照：([ec2-describe-volumes])，描述为：-03-13-2012。快照信息如下： Client.InvalidParameterValue: 参数volumeId的值(([ec2-describe-volumes]))无效。期望值：'vol-...'。进程在03-13-2012-08:11:35结束。
以下是代码：
#!/bin/bash
#Java home for debian default install path:
export JAVA_HOME=/usr
#add ec2 tools to default path
#export PATH=~/.ec2/bin:$PATH
#export EC2_HOME='/etc/ec2' # Make sure you use the API tools, not the AMI tools
export EC2_BIN=/usr/bin/
#export PATH=$PATH:$EC2_BIN
# I know all of the above is good to have solution, but not re-usable
# I have captured all of the above in a particular file and lemme execute it
source /etc/environment
PURGE_SNAPSHOT_IN_DAYS=60
#EC2_BIN=$EC2_HOME/bin
# store the certificates and private key to your amazon account
MY_CERT='cert-xx.pem'
MY_KEY='pk-xx.pem'
# fetching the instance-id from the metadata repository
MY_INSTANCE_ID=`curl http://169.254.169.254/1.0/meta-data/instance-id`
# temproary file
TMP_FILE='/tmp/rock-ebs-info.txt'
# get list of locally attached volumes via EC2 API:
$EC2_BIN/ec2-describe-volumes -C $MY_CERT -K $MY_KEY > $TMP_FILE
#VOLUME_LIST=$(cat $TMP_FILE | grep ${MY_INSTANCE_ID} | awk '{ print $2 }')
VOLUME_LIST=(`ec2-describe-volumes --filter attachment.instance-id=$MY_INSTANCE_ID | awk '{ print $2 }'`)
sync
#create the snapshots
echo "Create EBS Volume Snapshot - Process started at $(date +%m-%d-%Y-%T)"
echo ""
echo $VOLUME_LIST
echo "-------------"
for volume in $(echo $VOLUME_LIST); do
NAME=$(cat $TMP_FILE | grep Name | grep $volume | awk '{ print $5 }')
DESC=$NAME-$(date +%m-%d-%Y)
echo "Creating Snapshot for the volume: $volume with description: $DESC"
echo "Snapshot info below:"
$EC2_BIN/ec2-create-snapshot -C $MY_CERT -K $MY_KEY -d $DESC $volume
echo ""
done
echo "Process ended at $(date +%m-%d-%Y-%T)"
echo ""
rm -f $TMP_FILE
#remove those snapshot which are $PURGE_SNAPSHOT_IN_DAYS old