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CloudWatch エージェントをインストール

CloudWatch エージェントのインストール

$ cd /usr/local/src #自分でインストールしたライブラリはここに入れてる

$ sudo wget https://s3.amazonaws.com/amazoncloudwatch-agent/amazon_linux/amd64/latest/amazon-cloudwatch-agent.rpm

$ sudo rpm -U ./amazon-cloudwatch-agent.rpm

その後
IAMでアカウントを作成
シークレットコード、アクセスキーを取得する
アタッチするロールはよくわからないので
CloudWatch*
の名のついたものすべてにしてみた。

CloudWatch エージェント設定ファイルを作成

ウィザードで簡単に作成してみる

$ sudo /opt/aws/amazon-cloudwatch-agent/bin/amazon-cloudwatch-agent-config-wizard

# 全部デフォルトで。
# 追加ログいる?って聞かれたところで2. noを選択

Do you want to specify any additional log files to monitor?
1. yes
2. no
default choice: [1]:
2
Saved config file to /opt/aws/amazon-cloudwatch-agent/bin/config.json successfully.
Current config as follows:

# 設定ファイルの中身が表示される

Please check the above content of the config.
The config file is also located at /opt/aws/amazon-cloudwatch-agent/bin/config.json.
Edit it manually if needed.
Do you want to store the config in the SSM parameter store?
1. yes
2. no
default choice: [1]:

What parameter store name do you want to use to store your config? (Use 'AmazonCloudWatch-' prefix if you use our managed AWS policy)
default choice: [AmazonCloudWatch-linux]

Trying to fetch the default region based on ec2 metadata...
Which region do you want to store the config in the parameter store?
default choice: [ap-northeast-1]

Please provide credentials to upload the json config file to parameter store.
AWS Access Key:
[AMIで取得したアクセスキー]
AWS Secret Key:
[AMIで取得したシークレットキーを入力]
Successfully put config to parameter store AmazonCloudWatch-linux.
Program exits now.

IAM 認証情報とAWS リージョンの指定

$ sudo aws configure
Traceback (most recent call last):
  File "/usr/bin/aws", line 19, in <module>
    import awscli.clidriver
ImportError: No module named awscli.clidriver

# ↑ awscli.clidriver がないといわれる
# 念のためアップデート

$ sudo /usr/local/bin/pip install --upgrade pip
$ sudo /usr/local/bin/pip uninstall awscli
$ sudo /usr/local/bin/pip install awscli

# 再度実行
$ sudo aws configure
Traceback (most recent call last):
  File "/usr/bin/aws", line 19, in <module>
    import awscli.clidriver
ImportError: No module named awscli.clidriver

# まだawscli.clidriverがないといわれる、パッケージがあるかチェック
$ locate clidriver
/usr/local/lib/python2.6/site-packages/awscli/clidriver.py
/usr/local/lib/python2.6/site-packages/awscli/clidriver.pyc
/usr/local/lib/python2.6/site-packages/awscli/clidriver.pyo

# ある、対話モードでパスを確認
$ python
>>import sys
>>print sys.path
['', '/usr/local/lib/python26.zip', '/usr/local/lib/python2.6', '/usr/local/lib/python2.6/plat-linux4', 
'/usr/local/lib/python2.6/lib-tk', '/usr/local/lib/python2.6/lib-old', '/usr/local/lib/python2.6/lib-dynload', 
'/usr/local/lib/python2.6/site-packages', '/usr/local/lib/python2.6/site-packages/pip-9.0.1-py2.6.egg', 
'/usr/local/lib/python2.6/site-packages/setuptools-33.1.1-py2.6.egg']

# 見づらいけど「/usr/local/lib/python2.6/site-packages/」はあるなー
# 対話モードを[ctr +D]で終了

# 再度実行するとなぜかできた、パス認識してなかったのかも
aws configureaws 
AWS Access Key ID [None]: [AMIで取得したアクセスキー]
AWS Secret Access Key [None]: [AMIで取得したシークレットキーを入力]
Default region name [None]: ap-northeast-1 #東京リージョンを入力
Default output format [None]: 

#できたか確認
$ aws ec2 describe-instances
# 所有しているインスタンス情報が確認できればOK

cloudwatchエージェントを実行

$ sudo /opt/aws/amazon-cloudwatch-agent/bin/amazon-cloudwatch-agent-ctl -a fetch-config -m ec2 -c file:/opt/aws/amazon-cloudwatch-agent/bin/config.json -s

# エラー

E! Error parsing /opt/aws/amazon-cloudwatch-agent/etc/amazon-cloudwatch-agent.toml, 
open /usr/share/collectd/types.db: no such file or directory

# types.dbがないといわれる
# これは、「collectd」をインストールすることで解決

$ sudo vi /etc/yum.repos.d/epel.repo 
[epel]
name=Extra Packages for Enterprise Linux 6 - $basearch
#baseurl=http://download.fedoraproject.org/pub/epel/6/$basearch
mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-6&arch=$basearch
failovermethod=priority
enabled=0 → ここを1に変更
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6

#保存してインストール

$ sudo yum install collectd

# もう一度、cloudwatchエージェントを実行

$ sudo /opt/aws/amazon-cloudwatch-agent/bin/amazon-cloudwatch-agent-ctl -a fetch-config -m ec2 -c file:/opt/aws/amazon-cloudwatch-agent/bin/config.json -s

Successfully fetched the config and saved 
in /opt/aws/amazon-cloudwatch-agent/etc/amazon-cloudwatch-agent.d/file_config.json.tmp

止めるのはこう

$ sudo /opt/aws/amazon-cloudwatch-agent/bin/amazon-cloudwatch-agent-ctl -m ec2 -a stop

OK!みたいな雰囲気だけどどうかな?

設定ファイル「config.json」を変更した場合のパラメータリストへの手動アップ方法

$ cd /opt/aws/amazon-cloudwatch-agent/bin/
$ aws ssm put-parameter --name "AmazonCloudWatch-linux" --type "String" --overwrite --value file://config.json
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