This cookbook provides custom Chef resources for installing and configuring node_exporter, cadvisor, prometheus and grafana. Currently node_exporter and cadvisor support systemd implementation and prometheus/grafana support docker implementation.
- Systemd
- CentOS 6
Using this cookbook's resources it is possible to build complete monitoring system with prometheus scraping metrics from node_exporter and cadvisor, then visualizing these data in grafana by adding promethus datasource. You can provide any of your existing grafana dashboards as json files and have chef import them to grafana.
There is a lot of configuration options available, check attributes folder for the whole list. All binaries including docker are version-controlled, for docker implementatios you can disable version locks if latest versions are preferred. Every resource has "args" or "env" attribute that is used for configuring native parameters for underlying software, for example:
default['chef-ncpg']['cadvisor']['args'] = [
'-port 8080',
'-log_file /tmp/cadvisor.log'
]
default['chef-ncpg']['prometheus']['args'] = [
'--web.listen-address="0.0.0.0:9090"',
'--config.file="/etc/prometheus/prometheus.yml"',
'--storage.tsdb.retention.time="5d"'
]You can add any underlying software supported configuration to those attributes to have fine-grain control for all the components.
default.rb
default['chef-ncpg']['user_shell'] = '/bin/false'
default['chef-ncpg']['bin_path'] = '/usr/local/bin'docker.rb
default['chef-ncpg']['docker']['version'] = '19.03.5'
default['chef-ncpg']['docker']['version_lock'] = true
default['chef-ncpg']['docker']['net']['name'] = 'ncpg'
default['chef-ncpg']['docker']['net']['subnet'] = '192.168.13.0/29'
default['chef-ncpg']['docker']['net']['gateway'] = '192.168.13.1'
default['chef-ncpg']['docker']['bridge_ip'] = '172.17.0.1/24'
default['chef-ncpg']['docker']['grafana']['docker_host_port'] = '3000'
default['chef-ncpg']['docker']['grafana']['container_ip'] = '192.168.13.3'
default['chef-ncpg']['docker']['prometheus']['docker_host_port'] = '9090'
default['chef-ncpg']['docker']['prometheus']['container_ip'] = '192.168.13.2'cadvisor.rb
default['chef-ncpg']['cadvisor']['user'] = 'cadvisor'
default['chef-ncpg']['cadvisor']['group'] = 'cadvisor'
default['chef-ncpg']['cadvisor']['implement_via_docker'] = false
default['chef-ncpg']['cadvisor']['version'] = '0.34.0'
default['chef-ncpg']['cadvisor']['bin_name'] = 'cadvisor'
default['chef-ncpg']['cadvisor']['release_url'] = 'https://github.com/'\
'google/cadvisor/releases/download/vXX.XX.XX/cadvisor'
default['chef-ncpg']['cadvisor']['checksum_url'] = 'https://github.com'\
'/google/cadvisor/releases/tag/vXX.XX.XX'
default['chef-ncpg']['cadvisor']['args'] = [
'-port 8080',
'-log_file /tmp/cadvisor.log'
]grafana.rb
default['chef-ncpg']['grafana']['user'] = 'grafana'
default['chef-ncpg']['grafana']['group'] = 'grafana'
# this will override GF_SERVER_HTTP_PORT in env
default['chef-ncpg']['grafana']['port'] = '3000'
# this will override GF_SECURITY_ADMIN_PASSWORD in env
default['chef-ncpg']['grafana']['pass'] = ''
default['chef-ncpg']['grafana']['implement_via_docker'] = true
default['chef-ncpg']['grafana']['version'] = '6.5.3'
default['chef-ncpg']['grafana']['version_lock'] = true
default['chef-ncpg']['grafana']['env'] = [
'GF_SECURITY_ADMIN_PASSWORD=will_get_overridden',
'GF_SERVER_HTTP_PORT=2000',
'GF_SECURITY_ADMIN_USER=root'
]
default['chef-ncpg']['grafana']['auto_add_prometheus_datasource'] = true
# below option will only trigger action
# when "auto_add_prometheus_datasource" is "true" as well
default['chef-ncpg']['grafana']['auto_add_dashboards'] = true
default['chef-ncpg']['grafana']\
['dashboards_folder_name_in_cookbook_files'] = 'dashboards'node_exporter.rb
default['chef-ncpg']['node_exporter']['user'] = 'node_exporter'
default['chef-ncpg']['node_exporter']['group'] = 'node_exporter'
default['chef-ncpg']['node_exporter']['implement_via_docker'] = false
default['chef-ncpg']['node_exporter']['version'] = '0.18.1'
default['chef-ncpg']['node_exporter']['bin_name'] = 'node_exporter'
default['chef-ncpg']['node_exporter']['release_url'] = 'https://github.com/'\
'prometheus/node_exporter/releases/'\
'download/vXX.XX.XX/node_exporter-XX.XX.XX.linux-amd64.tar.gz'
default['chef-ncpg']['node_exporter']['checksum_url'] = 'https://github.com/'\
'prometheus/node_exporter/releases/download/vXX.XX.XX/sha256sums.txt'
default['chef-ncpg']['node_exporter']['args'] = [
'--web.listen-address=":9100"',
'--collector.filesystem.ignored-mount-points='\
'"^/(dev|proc|sys|var/lib/docker/.+)($|/)"'
]prometheus.rb
default['chef-ncpg']['prometheus']['user'] = 'prometheus'
default['chef-ncpg']['prometheus']['group'] = 'prometheus'
default['chef-ncpg']['prometheus']['port'] = '9090'
default['chef-ncpg']['prometheus']['implement_via_docker'] = true
default['chef-ncpg']['prometheus']['version'] = 'v2.9.2'
default['chef-ncpg']['prometheus']['version_lock'] = true
default['chef-ncpg']['prometheus']['args'] = [
'--web.listen-address="0.0.0.0:9090"',
'--config.file="/etc/prometheus/prometheus.yml"',
'--storage.tsdb.retention.time="5d"'
]node_exporter_service 'ncpg'
cadvisor_service 'ncpg'
grafana_docker 'ncpg' do
password 'pass'
end)
prometheus_docker 'ncpg'
# restart node_exporter service if
# different version installed or service args change
service node['chef-ncpg']['node_exporter']['bin_name'] do
action :nothing
end
# restart cadvisor service if different version installed or service args change
service node['chef-ncpg']['cadvisor']['bin_name'] do
action :nothing
endCheck full version in default.rb recipe that is controlled by attributes to decide which components to implement via docker and which via systemd, this recipe as well supports restarting systemd services if configuration changes.
Please, check libraries folder for details on implemented resources and their attributes.
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