test(archive): add tests to check service names

this commit makes `service name` to consider pillar provided values,
fallback to a consistent `service name` when {archive|package} is available
for the component, or to `service name == name` when no other value
is provided

prometheus/archive/install.sls

@@ -82,6 +82,8 @@ prometheus-archive-install-{{ name }}-file-directory:
       - user: prometheus-config-user-install-{{ name }}-user-present
       - group: prometheus-config-user-install-{{ name }}-user-present
 
+            {%- if grains.kernel|lower == 'linux' %}
+
 prometheus-archive-install-{{ name }}-managed-service:
   file.managed:
     - name: {{ p.dir.service }}/{{ p.pkg.component[name]['service'].get('name', name) }}.service
@@ -117,4 +119,5 @@ prometheus-archive-install-{{ name }}-managed-service:
       - archive: prometheus-archive-install-{{ name }}
 
             {%- endif %}
+        {%- endif %}
     {%- endfor %}

test/integration/default/controls/archive_spec.rb

@@ -3,12 +3,13 @@
 control 'prometheus components' do
   title 'should be installed'
 
-  service_dir =
   case platform[:family]
   when 'debian'
-      '/lib/systemd/system'
+    service_dir = '/lib/systemd/system'
+    alert_manager_service = 'prometheus-alertmanager'
   else
-      '/usr/lib/systemd/system'
+    service_dir = '/usr/lib/systemd/system'
+    alert_manager_service = 'alertmanager'
   end
 
   # describe package('cron') do
@@ -64,7 +65,7 @@ control 'prometheus components' do
     it { should exist }
     its('group') { should eq 'alertmanager' }
   end
-  describe file("#{service_dir}/alertmanager.service") do
+  describe file("#{service_dir}/#{alert_manager_service}.service") do
     it { should exist }
     its('group') { should eq 'root' }
     its('mode') { should cmp '0644' }

test/integration/default/controls/service_spec.rb

@@ -1,8 +1,10 @@
 # frozen_string_literal: true
 
-control 'prometheus services' do
+control 'services with a consistent service name across distros' do
   title 'should be running'
 
+  # we forced node_exporter's service name to `node_exporter` in the pillar,
+  # so its name will be the same across distros for this test
   describe service('node_exporter') do
     it { should be_enabled }
     it { should be_running }
@@ -13,3 +15,47 @@ control 'prometheus services' do
     it { should be_listening }
   end
 end
+
+control 'services with a consistent service name on each distro' do
+  title 'should be running'
+
+  # if we don't set a service name in the pillar,
+  # its name will be the same on each distro, no matter what the
+  # install method we choose
+
+  distro_service =
+    case platform[:family]
+    when 'debian'
+      'prometheus-blackbox-exporter'
+    else
+      'blackbox_exporter'
+    end
+
+  describe service(distro_service) do
+    it { should be_enabled }
+    it { should be_running }
+  end
+
+  # blackbox_exporter port
+  describe port(9115) do
+    it { should be_listening }
+  end
+end
+
+control 'services with any service name we want to give them' do
+  title 'should be running'
+
+  # if we set a service name in the pillar,
+  # the formula should work, no matter what it is or the
+  # install method we choose
+
+  describe service('my-fancy-consul-exporter-service') do
+    it { should be_enabled }
+    it { should be_running }
+  end
+
+  # consul_exporter port
+  describe port(9107) do
+    it { should be_listening }
+  end
+end

test/integration/repo/controls/service_spec.rb

@@ -3,18 +3,30 @@
 control 'prometheus services' do
   title 'should be running'
 
-  service =
+  services =
     case platform[:family]
     when 'redhat'
-      'node_exporter'
+      %w[
+        node_exporter
+        prometheus
+        blackbox_exporter
+        alertmanager
+      ]
     else
-      'prometheus-node-exporter'
+      %w[
+        prometheus
+        prometheus-node-exporter
+        prometheus-blackbox-exporter
+        prometheus-alertmanager
+      ]
     end
 
+  services.each do |service|
     describe service(service) do
       it { should be_enabled }
       it { should be_running }
     end
+  end
 
   # prometheus-node-exporter port
   describe port(9100) do

test/salt/pillar/default.sls

@@ -13,6 +13,8 @@ prometheus:
       - prometheus
       - alertmanager
       - node_exporter
+      - blackbox_exporter
+      - consul_exporter
       # - memcached_exporter  # not in upstream repo, only archive
 
   exporters:
@@ -93,11 +95,21 @@ prometheus:
         archive:
           source_hash: b2503fd932f85f4e5baf161268854bf5d22001869b84f00fd2d1f57b51b72424
         service:
-          name: node_exporter
           args:
             web.listen-address: ":9110"
             # collector.textfile.directory: /var/tmp/node_exporter
 
+      blackbox_exporter:
+        service:
+          args:
+            web.listen-address: ":9115"
+        config_file: /opt/prometheus/blackbox_exporter-v0.14.0/blackbox.yml
+
+      consul_exporter:
+        service:
+          # This is to test that any fancy name we use, will work in archive mode
+          name: my-fancy-consul-exporter-service
+
       prometheus:
         service:
           args:

test/salt/pillar/repo.sls

@@ -12,7 +12,6 @@ prometheus:
       - alertmanager
       - node_exporter
       - blackbox_exporter
-      # - memcached_exporter  # not in upstream repo, only archive
 
   exporters:
     node_exporter:
@@ -72,20 +71,6 @@ prometheus:
               email_configs:
                 - to: 'team-X+alerts@example.org'
 
-          inhibit_rules:
-            - name: opsGenie-receiver
-              opsgenie_configs:
-                - api_key: mysecret
-            - name: slack-receiver
-              slack_configs:
-                - channel: '#my-channel'
-                  image_url: 'http://some.img.com/img.png'
-
-        {% if grains['os_family'] == 'Debian' %}
-        service:
-          name: prometheus-alertmanager
-        {% endif %}
-
       node_exporter:
         version: v0.18.1
         archive:
@@ -94,9 +79,11 @@ prometheus:
           args:
             web.listen-address: ":9110"
             # collector.textfile.directory: /var/tmp/node_exporter
-          {% if grains['os_family'] == 'Debian' %}
+
-          name: prometheus-node-exporter
+      blackbox_exporter:
-          {% endif %}
+        service:
+          args:
+            web.listen-address: ":9115"
 
       prometheus:
         service: