我们如何从其他存储桶(而不是作曲家存储桶)访问任何配置文件 [英] How we can access any configuration file from other bucket (instead of composer bucket)

问题描述

我是python和google composer的新手. 我正在尝试从python脚本中从Google云存储中读取配置(.properties)文件.配置文件包含密钥&价值对. 我尝试使用configparser读取配置文件&与操作员也正常 如果我们在相同的作曲家环境中拥有相同的文件，那么我们可以给出路径 像'/home/airflow/gcs/dags/config.properties'

I am new in python and google composer. I am trying to read configuration(.properties) file from google cloud storage from my python script. configuration files contain key & value pair. I tried with configparser for reading the config file & normal with operator also If same file we have in same composer environment then we can give the path like '/home/airflow/gcs/dags/config.properties'

但是对于其他存储桶，我可以提供什么路径?

But for other bucket what path I can give ??

我正在尝试使用以下代码访问路径storage_client

I am trying to access path storage_client using below code

separator = "="
keys = {}

def iterate_bucket():
    bucket_name = 'other-bucket'
    storage_client = storage.Client.from_service_account_json(
    '/home/airflow/gcs/data/*************.json')
    bucket = storage_client.get_bucket(bucket_name)
    blobs = bucket.list_blobs()
    return blobs

def read_Prop():
    blobs = iterate_bucket()

    for blob in blobs:
        if "config.properties" in blob.name:
            print("hello : ", blob.name)
            #file_name = "/home/airflow/gcs/" + blob.name
            file_name = blob.name

    with open(file_name, 'r') as f: 
       for line in f:
       if separator in line:

            name, value = line.split(separator, 1)
           keys[name.strip()] = value.strip()

print(keys.get('any_key'))

我也使用了configparser

I used configparser also

config = configparser.ConfigParser()
config.read(blob.name)

在这两个条件下，我的python脚本都无法访问其他Google云存储(存储桶). 我没有得到这样的文件或目录错误

In both the condition for other google cloud storage(bucket) is not accesible from my python script. I am getting no such file or directory error

我们可以提供什么路径或任何其他方式来访问??

What path we can give or any other way to access ??

示例2-

def readYML():
bucket_name = 'external-bucket'
storage_client = storage.Client.from_service_account_json(
    '/home/airflow/gcs/data/private-key.json')
bucket = storage_client.get_bucket(bucket_name)
file_name = ""
blobs = bucket.list_blobs()
print("blobs : ",blobs)
for blob in blobs:
    if "sample_config.yml" in blob.name:
        print("hello : ", blob.name)
        file_name = blob.name
        print("file_name : ",file_name)
with open(file_name, 'r') as ymlfile:
    CFG = yaml.load(ymlfile)
    print("inside readYML method : ", CFG['configs']['project_id'])
    return CFG

请参阅日志-打印语句中的文件名即将到来，但是当我们读取错误时会发现没有此类文件或目录错误.

see the logs - Here in print statement file name is coming but when we are reading getting error for NO such file or directory error.

[2020-01-02 12:39:12,853] {base_task_runner.py:101} INFO - Job 11782: 
Subtask Raw1 [2020-01-02 12:39:12,852] {logging_mixin.py:95} INFO - hello :  
sample_config.yml
[2020-01-02 12:39:12,853] {logging_mixin.py:95} INFO - file_name :  
sample_config.yml
[2020-01-02 12:39:12,853] {base_task_runner.py:101} INFO - Job 11782: 
Subtask Raw1 [2020-01-02 12:39:12,853] {logging_mixin.py:95} INFO - 
file_name :  sample_config.yml
[2020-01-02 12:39:12,855] {models.py:1846} ERROR - [Errno 2] No such file or 
directory: 'sample_config.yml'

预先感谢

推荐答案

我们无法从composer存储桶中访问任何配置文件.我们只能使用存储访问API来访问文件，但是直接我们不能从任何其他存储桶中读取任何属性文件.

We can't access any configuration file from composer bucket. we can only access the file using storage access API but directly we can't read any property file from any other bucket.

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