cloudwatch-mon-scripts-python

Linux monitoring scripts for the AWS CloudWatch Service.

Initially, this project was created, because the original AWS monitoring scripts lacked support for the eu-central-1 (Frankfurt) region for about 4 months (2014-10-23 to 2015-02-25).

Now, this project has a couple of additional features (compared to v1.1.0 of the original AWS monitoring scripts):

Memory monitoring incl. buffers
Load monitoring (overall and per CPU core)
Monitoring of disk inode usage
Process monitoring
Fewer dependencies
Simpler installation

Requirements

Python 2 (>= 2.6) or Python 3 (>= 3.3)
Boto >= 2.33.0

Installation

Optionally create a virtual environment and activate it. Then just run pip install cloudwatchmon. Install the scripts in /usr/local/bin folder.

For script usage, run:

mon-put-instance-stats.py --help

Examples

To perform a simple test run without posting data to Amazon CloudWatch:

mon-put-instance-stats.py --mem-util --verify --verbose

Report memory and disk space utilization to Amazon CloudWatch:

mon-put-instance-stats.py --mem-util --disk-space-util --disk-path=/

To get utilization statistics for the last 12 hours:

mon-get-instance-stats.py --recent-hours=12

Configuration

To allow an EC2 instance to read and post metric data to Amazon CloudWatch, this IAM policy is required:

{
  "Statement": [
    {
      "Action": [
        "cloudwatch:ListMetrics",
        "cloudwatch:GetMetricStatistics",
        "cloudwatch:PutMetricData",
        "autoscaling:DescribeAutoScalingInstances"
      ],
      "Effect": "Allow",
      "Resource": "*"
    }
  ]
}

If the policy is configured via an IAM role that is assigned to the EC2 server this script runs on, you're done.

Otherwise you can configure the policy for a user account and export the credentials before running the script:

export AWS_ACCESS_KEY_ID=[Your AWS Access Key ID]
export AWS_SECRET_ACCESS_KEY=[Your AWS Secret Access Key]

Third option is to create a ~/.boto file with this content:

[Credentials]
aws_access_key_id = Your AWS Access Key ID
aws_secret_access_key = Your AWS Secret Access Key

Copyright

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.