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# awslog agent
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this role install awslog agent which sends syslog to cloudwatch. the default config sends /var/log/messages to cloudwatch. the default config is shown below.
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```
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[/var/log/messages]
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datetime_format = %Y-%m-%d %H:%M:%S
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file = /var/log/messages
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buffer_duration = 5000
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log_stream_name = {hostname}
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initial_position = start_of_file
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log_group_name = /var/log/messages
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```
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## requirements
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instances need the following permissions:
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- CreateLogStream
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- DescribeLogStreams
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- CreateLogGroup
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- PutLogEvents
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## references:
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- https://docs.aws.amazon.com/AmazonCloudWatch/latest/logs/QuickStartEC2Instance.html
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---
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- name: Download awslogs
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get_url:
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url: https://s3.amazonaws.com//aws-cloudwatch/downloads/latest/awslogs-agent-setup.py
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dest: /tmp/awslogs-agent-setup.py
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mode: 0755
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- name: Create awslogs config directory
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file:
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path: /etc/awslogs
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state: directory
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- name: Create awslogs config from template
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template:
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src: awslogs.conf
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dest: /etc/awslogs/awslogs.conf
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- name: Install awslogs
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shell: python /tmp/awslogs-agent-setup.py -c /etc/awslogs/awslogs.conf -n --region {{ REGION }}
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- name: Enable and start awslogs service
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service:
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name: awslogs
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state: started
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enabled: yes
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#
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# ------------------------------------------
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# CLOUDWATCH LOGS AGENT CONFIGURATION FILE
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# ------------------------------------------
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#
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# --- DESCRIPTION ---
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# This file is used by the CloudWatch Logs Agent to specify what log data to send to the service and how.
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# You can modify this file at any time to add, remove or change configuration.
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#
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# NOTE: A running agent must be stopped and restarted for configuration changes to take effect.
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#
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# --- CLOUDWATCH LOGS DOCUMENTATION ---
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# https://aws.amazon.com/documentation/cloudwatch/
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#
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# --- CLOUDWATCH LOGS CONSOLE ---
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# https://console.aws.amazon.com/cloudwatch/home?region=us-east-1#logs:
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#
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# --- AGENT COMMANDS ---
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# To check or change the running status of the CloudWatch Logs Agent, use the following:
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#
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# To check running status: /etc/init.d/awslogs status
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# To stop the agent: /etc/init.d/awslogs stop
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# To start the agent: /etc/init.d/awslogs start
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#
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# --- AGENT LOG OUTPUT ---
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# You can find logs for the agent in /var/log/awslogs.log
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# You can find logs for the agent script in /var/log/awslogs-agent-setup.log
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#
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# ------------------------------------------
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# CONFIGURATION DETAILS
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# ------------------------------------------
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# Refer to http://docs.aws.amazon.com/AmazonCloudWatch/latest/DeveloperGuide/AgentReference.html for details.
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[general]
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# Path to the CloudWatch Logs agent's state file. The agent uses this file to maintain
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# client side state across its executions.
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state_file = /var/awslogs/state/agent-state
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## This queue size determine the max number of event batch loaded into memory. 10 is the default value.
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## It can be reduced if the program consumes too much memory. 1 is the valid minimum value.
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#queue_size = 10
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#
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## Each log file is defined in its own section. The section name doesn't
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## matter as long as its unique within this file.
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#[kern.log]
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#
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## Path of log file for the agent to monitor and upload.
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#file = /var/log/kern.log
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#
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## Name of the destination log group.
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#log_group_name = kern.log
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#
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## Name of the destination log stream. You may use {hostname} to use target machine's hostname.
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#log_stream_name = {instance_id} # Defaults to ec2 instance id
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#
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## Format specifier for timestamp parsing. Here are some sample formats:
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## Use '%b %d %H:%M:%S' for syslog (Apr 24 08:38:42)
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## Use '%d/%b/%Y:%H:%M:%S' for apache log (10/Oct/2000:13:55:36)
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## Use '%Y-%m-%d %H:%M:%S' for rails log (2008-09-08 11:52:54)
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#datetime_format = %b %d %H:%M:%S # Specification details in the table below.
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#
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## A batch is buffered for buffer-duration amount of time or 32KB of log events.
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## Defaults to 5000 ms and its minimum value is 5000 ms.
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#buffer_duration = 5000
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#
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# Use 'end_of_file' to start reading from the end of the file.
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# Use 'start_of_file' to start reading from the beginning of the file.
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#initial_position = start_of_file
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#
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## Encoding of file
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#encoding = utf-8 # Other supported encodings include: ascii, latin-1
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#
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#
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#
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# Following table documents the detailed datetime format specification:
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# ----------------------------------------------------------------------------------------------------------------------
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# Directive Meaning Example
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# ----------------------------------------------------------------------------------------------------------------------
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# %a Weekday as locale's abbreviated name. Sun, Mon, ..., Sat (en_US)
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# ----------------------------------------------------------------------------------------------------------------------
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# %A Weekday as locale's full name. Sunday, Monday, ..., Saturday (en_US)
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# ----------------------------------------------------------------------------------------------------------------------
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# %w Weekday as a decimal number, where 0 is Sunday and 6 is Saturday. 0, 1, ..., 6
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# ----------------------------------------------------------------------------------------------------------------------
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# %d Day of the month as a zero-padded decimal numbers. 01, 02, ..., 31
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# ----------------------------------------------------------------------------------------------------------------------
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# %b Month as locale's abbreviated name. Jan, Feb, ..., Dec (en_US)
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# ----------------------------------------------------------------------------------------------------------------------
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# %B Month as locale's full name. January, February, ..., December (en_US)
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# ----------------------------------------------------------------------------------------------------------------------
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# %m Month as a zero-padded decimal number. 01, 02, ..., 12
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# ----------------------------------------------------------------------------------------------------------------------
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# %y Year without century as a zero-padded decimal number. 00, 01, ..., 99
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# ----------------------------------------------------------------------------------------------------------------------
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# %Y Year with century as a decimal number. 1970, 1988, 2001, 2013
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# ----------------------------------------------------------------------------------------------------------------------
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# %H Hour (24-hour clock) as a zero-padded decimal number. 00, 01, ..., 23
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# ----------------------------------------------------------------------------------------------------------------------
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# %I Hour (12-hour clock) as a zero-padded decimal numbers. 01, 02, ..., 12
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# ----------------------------------------------------------------------------------------------------------------------
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# %p Locale's equivalent of either AM or PM. AM, PM (en_US)
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# ----------------------------------------------------------------------------------------------------------------------
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# %M Minute as a zero-padded decimal number. 00, 01, ..., 59
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# ----------------------------------------------------------------------------------------------------------------------
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# %S Second as a zero-padded decimal numbers. 00, 01, ..., 59
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# ----------------------------------------------------------------------------------------------------------------------
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# %f Microsecond as a decimal number, zero-padded on the left. 000000, 000001, ..., 999999
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# ----------------------------------------------------------------------------------------------------------------------
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# %z UTC offset in the form +HHMM or -HHMM (empty string if the the object is naive). (empty), +0000, -0400, +1030
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# ----------------------------------------------------------------------------------------------------------------------
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# %j Day of the year as a zero-padded decimal number. 001, 002, ..., 365
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# ----------------------------------------------------------------------------------------------------------------------
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# %U Week number of the year (Sunday as the first day of the week) as a zero padded 00, 01, ..., 53
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# decimal number. All days in a new year preceding the first Sunday are considered
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# to be in week 0.
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# ----------------------------------------------------------------------------------------------------------------------
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# %W Week number of the year (Monday as the first day of the week) as a decimal number. 00, 01, ..., 53
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# All days in a new year preceding the first Monday are considered to be in week 0.
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# ----------------------------------------------------------------------------------------------------------------------
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# %c Locale's appropriate date and time representation. Tue Aug 16 21:30:00 1988 (en_US)
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# ----------------------------------------------------------------------------------------------------------------------
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[/var/log/messages]
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datetime_format = %Y-%m-%d %H:%M:%S
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file = /var/log/messages
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buffer_duration = 5000
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log_stream_name = {hostname}
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initial_position = start_of_file
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log_group_name = /var/log/messages
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