Debugging
Libcloud has a special debug mode which when enabled outputs all the outgoing HTTP requests and all the incoming HTTP responses. Output also includes cURL commands which can be used to re-produce the requests.
When this mode is enabled and if paramiko library is installed (used for
deployment), paramiko library log level is also set to DEBUG which helps with
debugging the deployment issues.
To enable it, set LIBCLOUD_DEBUG environment variable and make it point to a
file where the output should be saved.
For example if you want the output to be logged to the standard error (on Unix)
you can set it to /dev/stderr - LIBCLOUD_DEBUG=/dev/stderr python my_script.py.
Example output:
# -------- begin 4431824872 request ---------- curl -i -X GET -H 'Host: s3.amazonaws.com' -H 'X-LC-Request-ID: 4431824872' -H 'Content-Length: 0' -H 'User-Agent: libcloud/0.6.0-beta1 (Amazon S3 (standard))' 'https://s3.amazonaws.com:443/?AWSAccessKeyId=foo&Signature=bar' # -------- begin 4431824872:4431825232 response ---------- HTTP/1.1 200 OK X-Amz-Id-2: 1234 Server: AmazonS3 Transfer-Encoding: chunked X-Amz-Request-Id: FFFFFFFFFF Date: Tue, 01 Nov 2011 22:29:11 GMT Content-Type: application/xml 171 <?xml version="1.0" encoding="UTF-8"?> <ListAllMyBucketsResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/"><Owner><ID>sada8932dsa8d30i</ID><DisplayName>kami</DisplayName></Owner><Buckets><Bucket><Name>test34324323</Name><CreationDate>2011-11-01T22:17:23.000Z</CreationDate></Bucket></Buckets></ListAllMyBucketsResult> 0 # -------- end 4431824872:4431825232 response ----------