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dangerousbeans / scuttle_god



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Joran committed on 4/13/2017, 10:36:03 PM

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Readme.mdadded
sbot.godadded
sbot_notifier.rbadded
Readme.mdView
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1 …+Scuttle God
2 …+================
3 …+
4 …+A god process monitor setup for the Secure Scuttlebutt Server (pub)
5 …+
6 …+### Things
7 …+
8 …+- **Notifications:** webhook, email, twitter etc
9 …+- CPU and memory **boundaries**
10 …+- **Lifecycle management** with restarts, cool off periods and 'flapping' detection
11 …+
12 …+
13 …+### Install
14 …+
15 …+ git clone ssb://%p2XzNsMYEWAVdZg0uIHJMp7JWoZe1ezcAc4IaeSYe08=.sha256 scuttle_god
16 …+ cd scuttle_god
17 …+ gem install god
18 …+
19 …+### Setup
20 …+
21 …+ # Setup accounts etc
22 …+ vim sbot.god
23 …+
24 …+### Run
25 …+
26 …+ # detached
27 …+ god -c sbot.god
28 …+
29 …+ # attached
30 …+ god -c sbot.god -D
sbot.godView
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1 …+require './sbot_notifier.rb'
2 …+
3 …+# Webhook to send notification events
4 …+God.contact(:webhook) do |c|
5 …+ c.name = 'god'
6 …+ c.group = 'chatroom'
7 …+ c.url = "http://donkey.project-entropy.com:3000/"
8 …+ c.format = :json
9 …+end
10 …+
11 …+# SSB notifier to send events
12 …+God.contact(:sbot_notifier) do |c|
13 …+ c.name = 'god'
14 …+ c.group = 'chatroom'
15 …+ c.channel = "#test"
16 …+end
17 …+
18 …+God.watch do |w|
19 …+ w.name = "Secure Scuttlebutt Server"
20 …+ w.start = "sbot server"
21 …+ w.keepalive
22 …+
23 …+ # restart if memory or cpu is too high
24 …+ w.transition(:up, :restart) do |on|
25 …+ on.condition(:memory_usage) do |c|
26 …+ c.interval = 20
27 …+ c.above = 900.megabytes
28 …+ c.times = [3, 5]
29 …+ end
30 …+
31 …+ on.condition(:cpu_usage) do |c|
32 …+ c.interval = 10
33 …+ c.above = 98.percent
34 …+ c.times = [3, 5]
35 …+ end
36 …+ end
37 …+
38 …+ # Handle the process lifecycle
39 …+ w.lifecycle do |on|
40 …+
41 …+ # If this watch is started or restarted five times withing 5 minutes, then unmonitor it
42 …+ # then after ten minutes, monitor it again to see if it was just a temporary problem;
43 …+ # if the process is seen to be flapping five times within two hours, then give up completely.
44 …+ on.condition(:flapping) do |c|
45 …+ c.to_state = [:start, :restart]
46 …+ c.times = 5
47 …+ c.within = 5.minute
48 …+ c.transition = :unmonitored
49 …+ c.retry_in = 10.minutes
50 …+ c.retry_times = 5
51 …+ c.retry_within = 2.hours
52 …+
53 …+ c.notify = {:contacts => ['chatroom'], :priority => 1, :category => 'flapping'}
54 …+ end
55 …+ end
56 …+end
sbot_notifier.rbView
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1 …+# Send a notice to ssb as current user.
2 …+#
3 …+
4 …+module God
5 …+ module Contacts
6 …+
7 …+ class SbotNotifier < Contact
8 …+
9 …+ class << self
10 …+ attr_accessor :channel
11 …+ end
12 …+
13 …+ def valid?
14 …+ valid = true
15 …+ valid &= complain("Attribute 'channel' must be specified", self) unless arg(:channel)
16 …+ valid
17 …+ end
18 …+
19 …+ attr_accessor :url, :format
20 …+
21 …+ def notify(message, time, priority, category, host)
22 …+ data = {
23 …+ :message => message,
24 …+ :time => time,
25 …+ :priority => priority,
26 …+ :category => category,
27 …+ :host => host
28 …+ }
29 …+
30 …+ `sbot publish --type post --text "#{message}" --channel #{arg(:channel)}`
31 …+
32 …+ rescue Object => e
33 …+ applog(nil, :info, "failed to send sbot: #{e.message}")
34 …+ applog(nil, :debug, e.backtrace.join("\n"))
35 …+ end
36 …+
37 …+ end
38 …+
39 …+ end
40 …+end

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