This document appears to be notes from a Mackerel user group meeting. It discusses using the Mackerel monitoring service and fluentd plugin to monitor and visualize various metrics from applications and devices. Specific examples covered include monitoring Fitbit activity data and Google Analytics visitor counts, and displaying the metrics in a Dashing dashboard using custom widgets. The document also mentions restricting access to metrics collection via Nginx and standardizing the Mackerel API.

1. Mackerel standard
@a_know
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2. Who am I ?
• @a_know / id:a-know / /
• a-know.me
•
• Rails
•
• Chef, serverspec / GCP / Team Building
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3. Mackerel User Group Meeting Vol.1, 2016/6/14 3

4. Mackerel
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5. • ...
• A Mackerel
• B fluent-plugin-mackerel
• C
• D
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8. ... !
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9. a-know.me
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10. !
¥ 1,800 / month
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11. ≧
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12. Mackerel
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13. Mackerel
•
• fluent-plugin-mackerel
•
•
•
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15. Mackerel
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16. Dashing
• Dashing plugin widget
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18. • https://github.com/Shopify/dashing/wiki/Additional-
Widgets
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19. • Dashing widget Ruby
• fitbit Widget
• Google Analytics visitor count widget
• 1 widget
• Mackerel
• Web API
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21. • fitgem gem
fitbit = Fitbit.new unit_system: 'METRIC'
fluent_logger('a-know-metricks')
.post('activity', { todays_steps: fitbit.todays_steps })
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22. • td-agent.conf
<match a-know-metricks.activity.**>
type mackerel
api_key <%= @mackerel_api_key %>
service <%= @mackerel_service_name %>
metrics_name a-know-metricks-activity.todays_steps
out_keys todays_steps
</match>
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25. • google-api-client gem
client = Google::APIClient.new(appinfo_hash)
client.authorization = Signet::OAuth2::Client.new(credentials_hash)
client.authorization.fetch_access_token!
analytics = client.discovered_api('analytics','v3')
# Execute the query, get the value `[["1"]]`
response = client.execute(api_method: analytics.data.realtime.get, parameters: {
ids: "ga:" + profile_id,
metrics: "ga:activeVisitors",
}).data.rows.flatten
number = response.empty? ? 0 : response.first.to_i
fluent_logger('blog-metricks')
.post('active-visitors', { number: number })
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26. • td-agent.conf
<match blog-metricks.active-visitors.**>
type mackerel
api_key <%= @mackerel_api_key %>
service <%= @mackerel_service_name %>
metrics_name blog-metricks-active-visitors.number
out_keys number
</match>
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29. !
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30. wkwk ...
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31. Mackerel
•
• fluent-plugin-mackerel
•
• a-know
•
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32. (?)
...
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33. Mackerel User Group Meeting Vol.1, 2016/6/14 33

34. • API
• standard (?)
• a-know.me https
•
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35. !
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36. API
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37. API
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39. nginx
location ~ /(blog_metricks|a_know_metricks)/.+ {
allow 59.106.108.64/26;
deny all;
try_files $uri @unicorn;
}
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40. ...
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41. End ✋
• http://goo.gl/fLWGhp
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