atlantis monitoring

[ivomarino]

as suggested by @grappler we should provide atlantis with adequate monitoring, options are:

• monit (bottom-up)
• https://github.com/prometheus/node_exporter
• icinga2 (top-down)
• munin (top-down)
• https://nicolargo.github.io/glances/

[ivomarino]

munin has been implemented with https://github.com/ttssdev/appflow/commit/07afbc56470cdfc5bde26826fea4bf0696c7e948.

[ocean90]

Plugins which I think are also interesting for us:

• mysql_bytes
• mysql_queries
• mysql_threads
• mysql_slowqueries
• varnish_
  • Plugin requires the XML::Parser module

    Can't locate XML/Parser.pm in @INC (you may need to install the XML::Parser module) (@INC contains: /etc/perl /usr/local/lib/perl/5.18.2 /usr/local/share/perl/5.18.2 /usr/lib/perl5 /usr/share/perl5 /usr/lib/perl/5.18 /usr/share/perl/5.18 /usr/local/lib/site_perl .) at /usr/share/munin/plugins/varnish_ line 94.
    BEGIN failed--compilation aborted at /usr/share/munin/plugins/varnish_ line 94.

To install the plugins on atlantis I did the following steps:

# Install perl module (My answers were: yes, sudo)
cpan XML::Parser

# Create symlinks
sudo ln -s /usr/share/munin/plugins/varnish_ /etc/munin/plugins/varnish_memory_usage;
sudo ln -s /usr/share/munin/plugins/varnish_ /etc/munin/plugins/varnish_expunge;
sudo ln -s /usr/share/munin/plugins/varnish_ /etc/munin/plugins/varnish_hit_rate;
sudo ln -s /usr/share/munin/plugins/varnish_ /etc/munin/plugins/varnish_objects;
sudo ln -s /usr/share/munin/plugins/varnish_ /etc/munin/plugins/varnish_bad;
sudo ln -s /usr/share/munin/plugins/varnish_ /etc/munin/plugins/varnish_backend_traffic;
sudo ln -s /usr/share/munin/plugins/varnish_ /etc/munin/plugins/varnish_transfer_rates;
sudo ln -s /usr/share/munin/plugins/varnish_ /etc/munin/plugins/varnish_request_rate;
sudo ln -s /usr/share/munin/plugins/varnish_ /etc/munin/plugins/varnish_threads;
sudo ln -s /usr/share/munin/plugins/varnish_ /etc/munin/plugins/varnish_uptime;

sudo ln -s /usr/share/munin/plugins/mysql_bytes /etc/munin/plugins/;
sudo ln -s /usr/share/munin/plugins/mysql_queries /etc/munin/plugins/;
sudo ln -s /usr/share/munin/plugins/mysql_threads /etc/munin/plugins/;
sudo ln -s /usr/share/munin/plugins/mysql_slowqueries /etc/munin/plugins/;

# Restart munin node
sudo service munin-node restart

Varnish graphs:

MySQL graphs:

[ivomarino]

@ocean90 maybe a plugin for HAProxy could also be relevant.

[ivomarino]

Implemented.