Add UI options for Alerting feature

4 options:
- disable alerting (default)
- use a local node provided by the LMA Infrastructure Plugin
- use a remote Nagios server
- use the "standalone" SMTP support

implements blueprint alerting-lma-collector

Change-Id: If84275428b3d4b1b4b70177b8f87ec8b5bf6ee80

deployment_scripts/puppet/manifests/check_environment_configuration.pp

@@ -56,8 +56,8 @@ if $influxdb_mode == 'local' {
   }
 }
 
-$nagios_mode = $lma_collector['nagios_mode']
-if $nagios_mode == 'local' {
+$alerting_mode = $lma_collector['alerting_mode']
+if $alerting_mode == 'local' {
   # Check that the LMA-Infrastructure-Alerting plugin is enabled for that environment
   # and that the node names match
   $infra_alerting = hiera('lma_infrastructure_alerting', false)

deployment_scripts/puppet/manifests/controller.pp

@@ -160,15 +160,15 @@ if $lma_collector['influxdb_mode'] != 'disabled' {
   }
 }
 
-$nagios_mode = $lma_collector['nagios_mode']
-if $nagios_mode != 'disabled' {
+$alerting_mode = $lma_collector['alerting_mode']
+if $alerting_mode != 'disabled' {
 
   $deployment_id = hiera('deployment_id')
-  if $nagios_mode == 'remote' {
+  if $alerting_mode == 'remote' {
     $nagios_url = $lma_collector['nagios_url']
     $nagios_user = $lma_collector['nagios_user']
     $nagios_password = $lma_collector['nagios_password']
-  } elsif $nagios_mode == 'local' {
+  } elsif $alerting_mode == 'local' {
     $lma_infra_alerting = hiera('lma_infrastructure_alerting', false)
     $nagios_node_name = $lma_infra_alerting['node_name']
     $nagios_nodes = filter_nodes(hiera('nodes'), 'user_node_name', $nagios_node_name)
@@ -182,7 +182,7 @@ if $nagios_mode != 'disabled' {
     $http_path = $lma_collector::params::nagios_http_path
     $nagios_url = "http://${nagios_server}:${http_port}/${http_path}"
   } else {
-    fail("'${nagios_mode}' mode not supported for the infrastructure alerting service")
+    fail("'${alerting_mode}' mode not supported for the infrastructure alerting service")
   }
 
   class { 'lma_collector::nagios':

environment_config.yaml

@@ -106,20 +106,87 @@ attributes:
         - condition: "true"
           action: "hide"
 
-  nagios_mode:
+  alerting_mode:
     type: "radio"
     weight: 90
-    value: "local"
+    value: "disabled"
     label: "Alerting"
     values:
       - data: "disabled"
         label: "Disabled"
+      - data: "standalone"
+        label: "Alerts sent by email (requires a SMTP server)"
       - data: "local"
-        label: "Local node"
+        label: "Alerts sent to a local node running the LMA Infrastructure Alerting plugin"
       - data: "remote"
-        label: "Remote server"
+        label: "Alerts sent to a remote Nagios server"
     restrictions: *all_disabled_msg
 
+  alerting_send_to:
+    value: ''
+    label: 'The recipient email address'
+    description: ''
+    weight: 91
+    type: "text"
+    restrictions: &not_standalone
+        - condition: "settings:lma_collector.alerting_mode.value != 'standalone'"
+          action: "disable"
+    regex: &email
+      source: '[a-z0-9!#$%&*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.?)?[a-z0-9]?(?:[a-z0-9-]*[a-z0-9])?'
+      error: "Invalid email address"
+
+  alerting_send_from:
+    value: ''
+    label: 'The sender email address'
+    description: ''
+    weight: 92
+    type: "text"
+    restrictions: *not_standalone
+    regex: *email
+
+  alerting_smtp_host:
+    value: ''
+    label: 'SMTP server address'
+    description: 'IP address (or fully qualified domain name) and port of the SMTP server'
+    weight: 93
+    type: "text"
+    restrictions: *not_standalone
+    regex:
+      source: '^[a-zA-Z\d][a-zA-Z\d_\-.]+(:[0-9]+)?$'
+      error: 'Invalid address or name'
+
+  alerting_smtp_auth:
+    type: "radio"
+    weight: 93
+    value: "none"
+    label: "SMTP authentication method"
+    restrictions: *not_standalone
+    values:
+      - data: "none"
+        label: "None"
+      - data: "Plain"
+        label: "Plain"
+      - data: "CRAMMD5"
+        label: "CRAMMD5"
+
+  alerting_smtp_user:
+    value: ''
+    label: 'SMTP user'
+    description: ''
+    weight: 96
+    type: "text"
+    restrictions: &not_standalone_and_no_auth
+        - condition: "settings:lma_collector.alerting_mode.value != 'standalone' or settings:lma_collector.alerting_smtp_auth.value == 'none'"
+          action: "disable"
+
+  alerting_smtp_password:
+    value: ''
+    label: 'SMTP password'
+    description: ''
+    weight: 97
+    type: "password"
+    restrictions: *not_standalone_and_no_auth
+
   nagios_url:
     value: ''
     label: 'Nagios URL'
@@ -130,7 +197,7 @@ attributes:
       source: '^(http(s?):\/\/)?([a-zA-Z\d]+[a-zA-Z\d_\-.]*)(:[0-9]+)?(\/[a-zA-Z0-9_\-\s.\/\?%#&=]*)?$'
       error: "Invalid URL"
     restrictions: &not_remote
-        - condition: "settings:lma_collector.nagios_mode.value != 'remote'"
+        - condition: "settings:lma_collector.alerting_mode.value != 'remote'"
           action: "disable"
 
   nagios_user: