EC2 인스턴스 내에서 지역 찾기

EC2 인스턴스 내에서 지역 찾기

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인스턴스 내에서 인스턴스 영역을 찾는 방법이 있습니까?

인스턴스 id 를 찾는 방법과 비슷한 것을 찾고 있습니다.

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해당 URL ( http://169.254.169.254/latest/dynamic/instance-identity/document )이 더 이상 작동하지 않는 것 같습니다. 사용하려고하면 404가 나타납니다. 그래도 작동하는 것으로 보이는 다음 코드가 있습니다.

EC2_AVAIL_ZONE=`curl -s http://169.254.169.254/latest/meta-data/placement/availability-zone`
EC2_REGION="`echo \"$EC2_AVAIL_ZONE\" | sed 's/[a-z]$//'`"

도움이 되었기를 바랍니다.

편집 :sed 의견을 기반으로 개선

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이를 달성하는 또 다른 방법이 있습니다.

REGION=`curl http://169.254.169.254/latest/dynamic/instance-identity/document|grep region|awk -F\" '{print $4}'`

echo $REGION

us-east-1

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를 사용해도 괜찮다 jq면 다음을 실행할 수 있습니다.

curl -s http://169.254.169.254/latest/dynamic/instance-identity/document | jq .region -r

가장 깨끗한 방법이라고 생각합니다.

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ec2-metadata --availability-zone | sed 's/.$//'

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ec2-metadata를 사용할 수 있습니다 :

ec2-metadata -z | grep -Po "(us|sa|eu|ap)-(north|south|central)?(east|west)?-[0-9]+"

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정규 표현식을 피하려면 다음을 사용하여 파이썬으로 할 수있는 한 줄짜리입니다.

curl -s http://169.254.169.254/latest/dynamic/instance-identity/document | python -c "import json,sys; print json.loads(sys.stdin.read())['region']"

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내가 찾은 가장 쉬운

 curl -s 169.254.169.254/latest/meta-data/placement/availability-zone | sed 's/.$//'

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매우 간단한 하나의 라이너

export AVAILABILITY_ZONE=`wget -qO- http://instance-data/latest/meta-data/placement/availability-zone`
export REGION_ID=${AVAILABILITY_ZONE:0:${#AVAILABILITY_ZONE} - 1}

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jq를 설치 했다면 다음 과 같이 할 수도 있습니다 (아마도 가장 "우아한"방법).

curl -s http://169.254.169.254/latest/dynamic/instance-identity/document | jq -c -r .region

예쁘게 인쇄하거나 다른 형식을 지정하지 않고 "region"의 원시 값을 반환합니다. 참조 : AWS 포럼

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가용 영역에서 지역을 가져 와서 마지막 문자를 제거하십시오.

ec2-metadata -z | awk '{print $2}' | sed 's/[a-z]$//'

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JQ 사용 :

curl -s http://169.254.169.254/latest/dynamic/instance-identity/document | jq -r .region

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AWS Java SDK를 사용할 수있는 경우 현재 지역 이름 (예 : "us-east-1", "eu-west-1")을 반환하는 방법이 있습니다.

http://docs.aws.amazon.com/AWSJavaSDK/latest/javadoc/com/amazonaws/regions/Regions.html#getCurrentRegion ()

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이것이 내가 찾은 가장 깨끗한 솔루션입니다.

curl -s http://169.254.169.254/latest/dynamic/instance-identity/document |sed -n 's/  "region" : "\(.*\)"/\1/p'

예 :

export REGION=$(curl -s http://169.254.169.254/latest/dynamic/instance-identity/document |sed -n 's/  "region" : "\(.*\)"/\1/p')

• API 호출을하지 않고 EC2 인스턴스 메타 데이터를 사용합니다.
• curl 및 기본 sed 만 사용하므로 SDK 또는 도구에 종속되지 않습니다.
• Doesn't attempt to parse the Availability Zone name, so no worries if AWS changes AZ/Region name format

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Thanks to https://unix.stackexchange.com/a/144330/135640, with bash 4.2+ we can just strip the last char from the availability zone:

$ region=`curl -s 169.254.169.254/latest/meta-data/placement/availability-zone`
$ region=${region::-1}
$ echo $region
us-east-1

This assumes AWS continues to use a single character for availability zones appended to the region.

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Or don't make Ubuntu or this tool a requirement and simply do:

: "${EBS_VOLUME_AVAILABILITY_ZONE:=$(curl -s http://169.254.169.254/latest/meta-data/placement/availability-zone)}"
: ${EBS_VOLUME_REGION:="${EBS_VOLUME_AVAILABILITY_ZONE%%*([![:digit:]])}"}

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If you work with json - use right tools. jq much powerful in this case.

# curl -s curl -s http://169.254.169.254/latest/dynamic/instance-identity/document | jq -r '.region'
eu-west-1

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2 liner that works as long as you are using ec2.internal as your search domain:

az=$(curl -s http://instance-data/latest/meta-data/placement/availability-zone)
region=${az:0:${#az} - 1}

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For anyone wanting to do this with good ol powershell

$var = (curl http://169.254.169.254/latest/dynamic/instance-identity/document | Select-String-Pattern "Zone" | ConvertFrom-Json | Select-Object -ExpandProperty "region")
echo $var

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This works for eu-central-1 as well as the various letter zones. (I don't have enough rep to reply to the sed answer above)

ec2-metadata --availability-zone | sed 's/[a-z]$//'

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If you're running on windows, you can use this powershell one-liner:

$region=(Invoke-RestMethod "http://169.254.169.254/latest/dynamic/instance-identity/document").region

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Was also looking for a solution to find region from the instance and here is my pure Bash solution:

az=$(curl -s http://169.254.169.254/latest/meta-data/placement/availability-zone)
region=${az:0:${#az}-1}

unless there are regions where AZ has more than two letters, which I'm not aware of.

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For finding out information about the EC2 you are logged into, you can use the ec2-metadata tool.

You can install the tool by following this link. After installing the tool, you can run

# ec2-metadata -z

to find out the region.

This tools comes installed with the latest (10.10) Ubuntu AMIs,

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If you are looking to get region using JS, this should work :

meta.request("/latest/meta-data/placement/availability-zone",function(err,data){
        if(err)
                console.log(err);
        else{
                console.log(data);
                str = data.substring(0, data.length - 1);
                AWS.config.update({region:str});
                ec2 = new AWS.EC2();
            }
     });

This was the mapping found from AWS DOCS, in response to metadata API call, just trim the last character should work.

  eu-west-1a :eu-west-1
  eu-west-1b :eu-west-1
  eu-west-1c :eu-west-1
  us-east-1a :us-east-1
  us-east-1b :us-east-1
  us-east-1c :us-east-1
  us-east-1d :us-east-1
  ap-northeast-1a :ap-northeast-1
  ap-northeast-1b :ap-northeast-1
  us-west-1a :us-west-1
  us-west-1b :us-west-1
  us-west-1c :us-west-1
  ap-southeast-1a :ap-southeast-1
  ap-southeast-1b :ap-southeast-1

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ec2metadata (no dash) is the current command to provide you all the aws hosting info about your ec2 box. this is the most elegant and secure approach. (ec2-metadata is the old, no longer valid command.)

참고URL : https://stackoverflow.com/questions/4249488/find-region-from-within-an-ec2-instance