在本地设置Bluemix VCAP_SERVICES环境变量，以便可以在本地进行开发? [英] Set Bluemix VCAP_SERVICES environment variable locally so that I can develop locally?

问题描述

我正在尝试设置Bluemix VCAP_SERVICES环境变量在本地，但是在终端中出现此错误:

I am trying to set my Bluemix VCAP_SERVICES environment variable locally, but I'm getting this error in the terminal:

NoSQL:找不到命令

NoSQL: command not found

复制步骤

1. 登录到Bluemix.net
2. 部署你好世界烧瓶应用程序
3. 将Bluemix Cloudant服务绑定到应用程序
4. 从适用于Python的应用程序上的运行时/环境变量中复制VCAP_SERVICES环境变量
5. 在本地编辑器中，删除Mac终端上的所有换行符
6. vi ~/.bash_profile
7. 使用i
进入插入模式

8. 粘贴到VCAPSERVICES中，我的样子是这样的:

1. Login to Bluemix.net
2. Deploy a hello world flask application
3. Bind a Bluemix Cloudant Service to the application
4. Copy the VCAP_SERVICES Environment Variables from the Runtime / Environment Variables on the application for Python
5. In local editor remove all the line breaks on Mac terminal
6. vi ~/.bash_profile
7. Enter insert mode with i

8. paste in VCAPSERVICES, mine looks like this:

VCAP_SERVICES="{"VCAP_SERVICES":{"cloudantNoSQLDB": [{"credentials": {"host": "fakehostc-bluemix.cloudant.com","password":"fakepassword4da6de3a12a83362b26a","port": 443,"url": "https://fakeURLc-bluemix:fakeab96175c-bluemix.cloudant.com","username": "fakeusername-b749-399cfbd1175c-bluemix"},"label":"cloudantNoSQLDB","name":"Cloudant NoSQL DB-p2","plan":"Lite","provider":null,"syslog_drain_url":null,"tags":["data_management","ibm_created","ibm_dedicated_public"]}]}}"
export VCAP_SERVICES

保存文件并使用:wq!

我在复制和设置本地Bluemix VCAP_Services环境变量时做错了什么?

What am I doing wrong copying and setting my local Bluemix VCAP_Services Environment Variable?

如果我复制整个内容，则会收到错误消息，提示该行太长.我如何轻松地将整个Bluemix Python Runtime VCAP_SERVICES变量复制并粘贴到我的本地Mac .bash_profile环境设置中，而无需手动按摩JSON和所有这些换行符等?

If I copy the whole thing I get errors that the line is too long. How can I easily copy and paste the entire Bluemix Python Runtime VCAP_SERVICES Variable into my local Mac .bash_profile environment settings without manually massaging JSON and all these line breaks etc?

我不想使用本地文件来存储这些文件，因为从开发，测试，暂存和生产阶段迁移起来，它并不十分安全.

I don't want to use a local file to store those since it isn't very secure as I move from dev, test, staging and production.

推荐答案

我想出了答案，在VCAP_SERVICES的开头和结尾都使用单引号

I figured out the answer use single quotes at the beginning and end of VCAP_SERVICES

VCAP_SERVICES ='{"cloudantNoSQLDB":[{凭据":{主机":"fakehostc-bluemix.cloudant.com"，密码":"fakepassword4da6de3a12a83362b26a"，端口":443，"URL": " https://fakeURLc-bluemix:fakeab96175c-bluemix.cloudant.com "， "username":"fakeusername-b749-399cfbd1175c-bluemix"}，"label":"cloudantNoSQLDB"，"name":"Cloudant NoSQL DB-p2"，"plan":"Lite"，"provider":null，"syslog_drain_url:null，"标记:[" data_management，" ibm_created，" ibm_dedicated_public]}]}''

VCAP_SERVICES='{"cloudantNoSQLDB": [{"credentials": {"host": "fakehostc-bluemix.cloudant.com","password":"fakepassword4da6de3a12a83362b26a","port": 443,"url": "https://fakeURLc-bluemix:fakeab96175c-bluemix.cloudant.com","username": "fakeusername-b749-399cfbd1175c-bluemix"},"label":"cloudantNoSQLDB","name":"Cloudant NoSQL DB-p2","plan":"Lite","provider":null,"syslog_drain_url":null,"tags":["data_management","ibm_created","ibm_dedicated_public"]}]}'

以下是用于检索VCAP Services环境变量并在Cloudant上执行基本操作的相应代码:

Here is the corresponding code to retrieve VCAP Services environment variables and do basic operations on Cloudant:

# 1. Parse VCAP_SERVICES Variable and connect to DB         
vcap = json.loads(os.getenv("VCAP_SERVICES"))['cloudantNoSQLDB']        
serviceUsername = vcap[0]['credentials']['username']
servicePassword = vcap[0]['credentials']['password']    
serviceURL = vcap[0]['credentials']['url']

# Create Cloudant DB connection
# This is the name of the database we are working with.
databaseName = "databasedemo"

# This is a simple collection of data,
# to store within the database.
sampleData = [
    [1, "one", "boiling", 100],
    [2, "two", "hot", 40],
    [3, "three", "warm", 20],
    [4, "four", "cold", 10],
    [5, "five", "freezing", 0]
]

# Use the Cloudant library to create a Cloudant client.
client = Cloudant(serviceUsername, servicePassword, url=serviceURL)

# Connect to the server
client.connect()

# 2.  Creating a database within the service instance.

# Create an instance of the database.
myDatabaseDemo = client.create_database(databaseName)

# Check that the database now exists.
if myDatabaseDemo.exists():
    print "'{0}' successfully created.\n".format(databaseName)

# 3.  Storing a small collection of data as documents within the database.

# Create documents using the sample data.
# Go through each row in the array
for document in sampleData:
    # Retrieve the fields in each row.
    number = document[0]
    name = document[1]
    description = document[2]
    temperature = document[3]

    # Create a JSON document that represents
    # all the data in the row.
    jsonDocument = {
        "numberField": number,
        "nameField": name,
        "descriptionField": description,
        "temperatureField": temperature
    }

    # Create a document using the Database API.
    newDocument = myDatabaseDemo.create_document(jsonDocument)

    # Check that the document exists in the database.
    if newDocument.exists():
        print "Document '{0}' successfully created.".format(number)

# 4.  Retrieving a complete list of the documents.

# Simple and minimal retrieval of the first
# document in the database.
result_collection = Result(myDatabaseDemo.all_docs)
print "Retrieved minimal document:\n{0}\n".format(result_collection[0])

# Simple and full retrieval of the first
# document in the database.
result_collection = Result(myDatabaseDemo.all_docs, include_docs=True)
print "Retrieved full document:\n{0}\n".format(result_collection[0])

# Use a Cloudant API endpoint to retrieve
# all the documents in the database,
# including their content.

# Define the end point and parameters
end_point = '{0}/{1}'.format(serviceURL, databaseName + "/_all_docs")
params = {'include_docs': 'true'}

# Issue the request
response = client.r_session.get(end_point, params=params)

# Display the response content
print "{0}\n".format(response.json())

# 5.  Deleting the database.

# Delete the test database.
try :
    client.delete_database(databaseName)
except CloudantException:
    print "There was a problem deleting '{0}'.\n".format(databaseName)
else:
    print "'{0}' successfully deleted.\n".format(databaseName)

# 6.  Closing the connection to the service instance.

# Disconnect from the server
client.disconnect()

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