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Added better example for boto3 exception handling (#2204)

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Rob 2016-05-11 20:33:52 +10:00 committed by Matt Clay
parent 5e3c3741dd
commit 94e7fae06a
1 changed files with 17 additions and 2 deletions
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19
lib/ansible/modules/extras/cloud/amazon/GUIDELINES.md
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@ -178,6 +178,8 @@ except BotoServerError, e:
For more information on botocore exception handling see [http://botocore.readthedocs.org/en/latest/client_upgrades.html#error-handling] For more information on botocore exception handling see [http://botocore.readthedocs.org/en/latest/client_upgrades.html#error-handling]
Boto3 provides lots of useful info when an exception is thrown so pass this to the user along with the message.
```python ```python
# Import ClientError from botocore # Import ClientError from botocore
try: try:
@ -193,7 +195,20 @@ except ImportError:
try: try:
result = connection.aws_call() result = connection.aws_call()
except ClientError, e: except ClientError, e:
module.fail_json(msg=e.message) module.fail_json(msg=e.message, **camel_dict_to_snake_dict(e.response))
```
If you need to perform an action based on the error boto3 returned, use the error code.
```python
# Make a call to AWS
try:
result = connection.aws_call()
except ClientError, e:
if e.response['Error']['Code'] == 'NoSuchEntity':
return None
else:
module.fail_json(msg=e.message, **camel_dict_to_snake_dict(e.response))
``` ```
### Helper functions ### Helper functions
@ -220,7 +235,7 @@ key and the dict value is the tag value.
Opposite of above. Converts an Ansible dict to a boto3 tag list of dicts. Opposite of above. Converts an Ansible dict to a boto3 tag list of dicts.
### get_ec2_security_group_ids_from_names #### get_ec2_security_group_ids_from_names
Pass this function a list of security group names or combination of security group names and IDs and this function will Pass this function a list of security group names or combination of security group names and IDs and this function will
return a list of IDs. You should also pass the VPC ID if known because security group names are not necessarily unique return a list of IDs. You should also pass the VPC ID if known because security group names are not necessarily unique