OpenSearch Docker Image无法建立一个新连接：[ERRNO 111]连接拒绝）

Question

我正在使用Docker Desktop（Windows）中的OpenSearch。

使用docker-compose.yml file- file-

https://opensearch.org/down.org/downloads.html

code-

!pip install opensearch-py

from opensearchpy import OpenSearch

host = 'localhost'
port = 9200
auth = ('admin', 'admin') # For testing only. Don't store credentials in code.
# ca_certs_path = '/full/path/to/root-ca.pem' # Provide a CA bundle if you use intermediate CAs with your root CA.

# Optional client certificates if you don't want to use HTTP basic authentication.
# client_cert_path = '/full/path/to/client.pem'
# client_key_path = '/full/path/to/client-key.pem'

# Create the client with SSL/TLS enabled, but hostname verification disabled.
client = OpenSearch(
    hosts = [{'host': host, 'port': port}],
    http_compress = True, # enables gzip compression for request bodies
    http_auth = auth,
    # client_cert = client_cert_path,
    # client_key = client_key_path,
    use_ssl = True,
    verify_certs = True,
    ssl_assert_hostname = False,
    ssl_show_warn = False,
    # ca_certs = ca_certs_path
)
# Create an index with non-default settings.
index_name = 'python-test-index'
index_body = {
  'settings': {
    'index': {
      'number_of_shards': 4
    }
  }
}
response = client.indices.create(index_name, body=index_body)
print('\nCreating index:')
print(response)

error-

---------------------------------------------------------------------------
ConnectionRefusedError                    Traceback (most recent call last)
/usr/local/lib/python3.7/dist-packages/urllib3/connection.py in _new_conn(self)
    158             conn = connection.create_connection(
--> 159                 (self._dns_host, self.port), self.timeout, **extra_kw)
    160 
16 frames
ConnectionRefusedError: [Errno 111] Connection refused

During handling of the above exception, another exception occurred:

NewConnectionError                        Traceback (most recent call last)
NewConnectionError: <urllib3.connection.VerifiedHTTPSConnection object at 0x7f1f3be83690>: Failed to establish a new connection: [Errno 111] Connection refused

During handling of the above exception, another exception occurred:

ConnectionError                           Traceback (most recent call last)
/usr/local/lib/python3.7/dist-packages/opensearchpy/connection/http_urllib3.py in perform_request(self, method, url, params, body, timeout, ignore, headers)
    262             if isinstance(e, ReadTimeoutError):
    263                 raise ConnectionTimeout("TIMEOUT", str(e), e)
--> 264             raise ConnectionError("N/A", str(e), e)
    265 
    266         # raise warnings if any from the 'Warnings' header.

ConnectionError: ConnectionError(<urllib3.connection.VerifiedHTTPSConnection object at 0x7f1f3be83690>: Failed to establish a new connection: [Errno 111] Connection refused) caused by: NewConnectionError(<urllib3.connection.VerifiedHTTPSConnection object at 0x7f1f3be83690>: Failed to establish a new connection: [Errno 111] Connection refused)

在另一个站点上找到类似的查询 -

https://solveforum.com/forums/threads/solved-how-to-connect-amazon-opensearch- docker-image-to-streamlit-python-application-docker-image.509702/＃登录

在Docker桌面上运行的OpenSearch Instances。

我在互联网上搜索，但没有找到答案，请告诉我。

snap-

谢谢

Answer 1

问题是我试图使用Google Colab笔记本电脑连接连接OpenSearch Docker实例。

在Python Virtual Env中运行脚本后，我能够连接Docker实例。

ref link- docker：opensearch拒绝与与示例的连接Docker中的OpenSearch文档

工作代码 -

from opensearchpy import OpenSearch

def connect_to_os():
    host = 'localhost'
    port = 9200
    auth = ('admin', 'admin') # For testing only. Don't store credentials in code.
# ca_certs_path = '/full/path/to/root-ca.pem' # Provide a CA bundle if you use intermediate CAs with your root CA.

# Optional client certificates if you don't want to use HTTP basic authentication.
# client_cert_path = '/full/path/to/client.pem'
# client_key_path = '/full/path/to/client-key.pem'

# Create the client with SSL/TLS enabled, but hostname verification disabled.
    try:
        client = OpenSearch(
            hosts = [{'host': host, 'port': port}],
            http_compress = True, # enables gzip compression for request bodies
            http_auth = auth,
        # client_cert = client_cert_path,
        # client_key = client_key_path,
            use_ssl = True,
            verify_certs = False,
            ssl_assert_hostname = False,
            ssl_show_warn = False,
            # ca_certs = ca_certs_path
             )
    except BaseException: 
        #connection error; send error message
        print("ERROR unable to connect opensearch instance")
        return False
    
    return client

# Create an index with non-default settings.
index_name = 'python-test-index'
index_body = {
  'settings': {
    'index': {
      'number_of_shards': 4
    }
  }
}
client = connect_to_os()
response = client.indices.create(index_name, body=index_body)
print('\nCreating index:')
print(response)