Question

我正在使用python访问elasticsearch集群。现在我想使用快照备份我的索引。最困难的是：python-elasticsearch的doc只给我一个API描述。没有示例向我展示如何创建快照。我尝试了一些参数，但都失败了。任何人都可以使用python提供弹性搜索的快照示例吗？以下是我的代码：

from elasticsearch import Elasticsearch
es = Elasticsearch()
snapshot_body = {
"type": "url",
"settings": {
        "url":  "http://download.elasticsearch.org/definitiveguide/sigterms_demo/"
    }
}
body = {"snapshot": snapshot_body}
es.snapshot.create_repository(repository='test', body=body)

Answer 1

您的存储库创建几乎是正确的，您不需要行body = {"snapshot": snapshot_body}，只需像这样创建您的存储库：

es.snapshot.create_repository(repository='test', body=snapshot_body)

现在，为了创建快照，您只需要这样做：

es.snapshot.create(repository='test', snapshot='my_snapshot')

如果你只想存储几个指数而不是全部，你也可以提供这样的身体：

index_body = {
  "indices": "index_1,index_2"
}
es.snapshot.create(repository='test', snapshot='my_snapshot', body=index_body)

Answer 2

将以下示例Python代码保存为Python文件，例如register-repo.py。客户端需要适用于Python的AWS开发工具包（Boto3），请求和request-aws4auth软件包。客户端包含其他快照操作的注释示例。

import boto3
import requests
from requests_aws4auth import AWS4Auth

host = '' # include https:// and trailing /
region = '' # e.g. us-west-1
service = 'es'
credentials = boto3.Session().get_credentials()
awsauth = AWS4Auth(credentials.access_key, credentials.secret_key, region, service, session_token=credentials.token)

# Register repository

path = '_snapshot/my-snapshot-repo-name' # the Elasticsearch API endpoint
url = host + path

payload = {
  "type": "s3",
  "settings": {
    "bucket": "s3-bucket-name",
    # "endpoint": "s3.amazonaws.com", # for us-east-1
    "region": "us-west-1", # for all other regions
    "role_arn": "arn:aws:iam::123456789012:role/TheSnapshotRole"
  }
}

headers = {"Content-Type": "application/json"}

r = requests.put(url, auth=awsauth, json=payload, headers=headers)

print(r.status_code)
print(r.text)

# # Take snapshot
#
# path = '_snapshot/my-snapshot-repo/my-snapshot'
# url = host + path
#
# r = requests.put(url, auth=awsauth)
#
# print(r.text)
#
# # Delete index
#
# path = 'my-index'
# url = host + path
#
# r = requests.delete(url, auth=awsauth)
#
# print(r.text)
#
# # Restore snapshot (all indices except Kibana and fine-grained access control)
#
# path = '_snapshot/my-snapshot-repo/my-snapshot/_restore'
# url = host + path
#
# payload = {
#   "indices": "-.kibana*,-.opendistro_security",
#   "include_global_state": false
# }
#
# headers = {"Content-Type": "application/json"}
#
# r = requests.post(url, auth=awsauth, json=payload, headers=headers)
#
# # Restore snapshot (one index)
#
# path = '_snapshot/my-snapshot-repo/my-snapshot/_restore'
# url = host + path
#
# payload = {"indices": "my-index"}
#
# headers = {"Content-Type": "application/json"}
#
# r = requests.post(url, auth=awsauth, json=payload, headers=headers)
#
# print(r.text)

不要在美国东部1使用此功能，那么您必须使用此功能重要如果S3存储桶位于us-east-1区域，则必须使用“ endpoint”：“ s3.amazonaws.com”而不是“ region”：“ us-east-1”。

要为快照存储库启用由S3管理的密钥进行服务器端加密，请在“设置” JSON中添加“ server_side_encryption”：true。

https://docs.aws.amazon.com/elasticsearch-service/latest/developerguide/es-managedomains-snapshots.html#es-managedomains-snapshot-registerdirectory

有人能用python给出弹性搜索的快照示例吗？

2 个答案: