Add ceph integration (DataDog#293)

Author: stamak

manifests/integrations/ceph.pp

@@ -0,0 +1,29 @@
+# Class: datadog_agent::integrations::ceph
+#
+# This class will install the necessary configuration for the ceph integration
+#
+# Parameters:
+
+# Sample Usage:
+#
+#  class { 'datadog_agent::integrations::ceph' :
+#  }
+#
+class datadog_agent::integrations::ceph(
+) inherits datadog_agent::params {
+  include datadog_agent
+
+  file { '/etc/sudoers.d/datadog_ceph':
+    content => "# This file is required for dd ceph \ndd-agent ALL=(ALL) NOPASSWD:/usr/bin/ceph\n"
+  }
+
+  file { "${datadog_agent::params::conf_dir}/ceph.yaml":
+    ensure  => file,
+    owner   => $datadog_agent::params::dd_user,
+    group   => $datadog_agent::params::dd_group,
+    mode    => '0600',
+    content => template('datadog_agent/agent-conf.d/ceph.yaml.erb'),
+    require => Package[$datadog_agent::params::package_name],
+    notify  => Service[$datadog_agent::params::service_name]
+  }
+}

spec/classes/datadog_agent_integrations_ceph_spec.rb

@@ -0,0 +1,31 @@
+require 'spec_helper'
+
+describe 'datadog_agent::integrations::ceph' do
+  let(:facts) {{
+    operatingsystem: 'Ubuntu',
+  }}
+  let(:conf_dir) { '/etc/dd-agent/conf.d' }
+  let(:dd_user) { 'dd-agent' }
+  let(:dd_group) { 'root' }
+  let(:dd_package) { 'datadog-agent' }
+  let(:dd_service) { 'datadog-agent' }
+  let(:conf_file) { "#{conf_dir}/ceph.yaml" }
+  let(:sudo_conf_file) { '/etc/sudoers.d/datadog_ceph' }
+
+  it { should compile.with_all_deps }
+  it { should contain_file(conf_file).with(
+    owner: dd_user,
+    group: dd_group,
+    mode: '0600',
+  )}
+  it { should contain_file(conf_file).that_requires("Package[#{dd_package}]") }
+  it { should contain_file(conf_file).that_notifies("Service[#{dd_service}]") }
+
+  context 'with default parameters' do
+    it { should contain_file(conf_file).with_content(/tags:\s+- name:ceph_cluster\s*?[^-]/m) }
+    it { should contain_file(conf_file).with_content(/^\s*ceph_cmd:\s*\/usr\/bin\/ceph\s*?[^-]/m) }
+    it { should contain_file(conf_file).with_content(/^\s*use_sudo:\sTrue$/) }
+    it { should contain_file(sudo_conf_file).with_content(/^dd-agent\sALL=.*NOPASSWD:\/usr\/bin\/ceph$/) }
+  end
+
+end

templates/agent-conf.d/ceph.yaml.erb

@@ -0,0 +1,13 @@
+init_config:
+
+instances:
+  - tags:
+    - name:ceph_cluster
+
+    ceph_cmd: /usr/bin/ceph
+
+# If your environment requires sudo, please add a line like:
+#          dd-agent ALL=(ALL) NOPASSWD:/usr/bin/ceph
+# to your sudoers file, and uncomment the below option.
+
+    use_sudo: True