chore(proc): change repo layout and config workflow

Change layout of configurations and configuration schemas (see #1037)
Add schema validation to configurations-ci job.

.github/workflows/configurations.yaml

@@ -22,19 +22,50 @@ on:
   pull_request:
     types: [opened,synchronize,reopened]
     paths:
-    - 'applications/**/*.yaml'
+    - 'configurations/**/*.yaml'
+    - 'provisioning/schemas/configuration/**/*.json'
 
 
 jobs:
 
-  yamllint:
+  ci:
     runs-on: ubuntu-latest
     permissions:
       contents: read
 
     steps:
     - name: Checkout source code
       uses: actions/checkout@v3
-
-    - name: Check CLI script
-      run: yamllint configurations/**/*.yaml configurations/**/*.yml
+
+    - name: install ajv
+      run: npm install ajv-cli
+
+    - name: Lint configurations
+      run: |-
+        cd "${{ github.workspace }}"
+        CONFIG_FILES=$(find configurations -mindepth 2 -maxdepth 2 -type f \( -name "*.yaml" -o -name "*.yml" \))
+        if [[ -n "$CONFIG_FILES" ]]; then
+          yamllint configurations/**/*.yaml configurations/**/*.yml
+        fi
+    
+    - name: Lint schemas
+      run: echo "JSON liniting will be here"
+
+    - name: Schema validation
+      run: |-
+        cd "${{ github.workspace }}"
+        for CONFIG_FILE in $(find configurations -mindepth 2 -maxdepth 2 -type f -name "*.yaml"); do
+          FILENAME=$(basename -s '.yaml' "${CONFIG_FILE@L}")
+          case "${FILENAME}" in
+            alerts | dashboards | healthchecks | metrics | services | slos)
+              ;;
+            *)
+              echo "Unknown file "${CONFIG_FILE}" 1>&2
+              continue
+              ;;
+          esac
+          ajv --spec=draft2020 -s "provisioning/schemas/configuration/${FILENAME}.json" -d "${CONFIG_FILE}"
+        done
+  
+    - name: Dry run
+      run: echo "Validation of Terraform plan for test configuration will be here"

provisioning/configurations/schemas/alert.json → provisioning/schemas/configuration/alerts.json

@@ -1,7 +1,6 @@
 {
-    "$id": "https://github.com/GoogleCloudPlatform/cloud-ops-sandbox/provisioning/schemas/alert.json",
     "$schema": "https://json-schema.org/draft/2020-12/schema",
-    "title": "Monitoring alert schema",
+    "title": "Monitoring alerts and notification channels schema",
     "type": "object",
     "required": [
         "app-id",
@@ -19,10 +18,17 @@
         },
         "alerts": {
             "type": "array",
-            "description": "A collection of alerts",
+            "description": "A collection of alert policy definitions",
             "items": {
                 "$ref": "#/$defs/alert"
             }
+        },
+        "channels": {
+            "type": "array",
+            "description": "A collection of notification channel definitions",
+            "items": {
+                "$ref": "#/$defs/channel"
+            }
         }
     },
     "$defs": {
@@ -67,6 +73,49 @@
                 }
             }
         },
+        "channel": {
+            "type": "object",
+            "description": "",
+            "required": [
+                "name",
+                "type",
+                "labels"
+            ],
+            "properties": {
+                "name": {
+                    "type": "string",
+                    "description": "A unique resource name for this notification channel",
+                    "maxLength": 30
+                },
+                "display-name": {
+                    "type": "string",
+                    "description": "A human-readable name for this notification channel",
+                    "maxLength": 512
+                },
+                "type": {
+                    "enum": [
+                        "email",
+                        "pubsub",
+                        "sms"
+                    ],
+                    "description": "Supports sending notifications to email, PubSub and SMS"
+                },
+                "labels": {
+                    "description": "Configuration fields that define the channel and its behavior for one of:",
+                    "anyOf": [
+                        {
+                            "$ref": "#/$defs/emailLabels"
+                        },
+                        {
+                            "$ref": "#/$defs/pubsubLabels"
+                        },
+                        {
+                            "$ref": "#/$defs/smsLabels"
+                        }
+                    ]
+                }
+            }
+        },
         "condition": {
             "type": "object",
             "description": "A true/false test that determines when an alerting policy should open an incident",
@@ -130,6 +179,45 @@
         },
         "conditionAbsent": {},
         "conditionMatchedLog": {},
-        "conditionMonitoringQueryLanguage": {}
+        "conditionMonitoringQueryLanguage": {},
+        "emailLabels": {
+            "type": "object",
+            "description": "Configuration for email notification channel",
+            "required": [
+                "email_address"
+            ],
+            "properties": {
+                "email_address": {
+                    "type": "string",
+                    "description": "An address to send email"
+                }
+            }
+        },
+        "pubsubLabels": {
+            "type": "object",
+            "description": "Configuration for PubSub notification channel",
+            "required": [
+                "topic"
+            ],
+            "properties": {
+                "topic": {
+                    "type": "string",
+                    "description": "A fully qualified resource name of the Pub/Sub topic to post notifications"
+                }
+            }
+        },
+        "smsLabels": {
+            "type": "object",
+            "description": "Configuration for SMS notification channel",
+            "required": [
+                "number"
+            ],
+            "properties": {
+                "number": {
+                    "type": "string",
+                    "describing": "A phone number to text notifications"
+                }
+            }
+        }
     }
 }

provisioning/configurations/schemas/dashboard.json → provisioning/schemas/configuration/dashboards.json

@@ -1,5 +1,4 @@
 {
-    "$id": "https://github.com/GoogleCloudPlatform/cloud-ops-sandbox/provisioning/schemas/dashboard.json",
     "$schema": "https://json-schema.org/draft/2020-12/schema",
     "title": "Monitoring dashboard schema",
     "type": "object",

provisioning/configurations/schemas/uptime_check.json → provisioning/schemas/configuration/healthchecks.json

@@ -1,5 +1,4 @@
 {
-    "$id": "https://github.com/GoogleCloudPlatform/cloud-ops-sandbox/provisioning/schemas/uptime_check.json",
     "$schema": "https://json-schema.org/draft/2020-12/schema",
     "title": "Uptime check schema",
     "type": "object",

provisioning/configurations/schemas/log_based_metric.json → provisioning/schemas/configuration/metrics.json

@@ -1,5 +1,4 @@
 {
-    "$id": "https://github.com/GoogleCloudPlatform/cloud-ops-sandbox/provisioning/schemas/log_based_metric.json",
     "$schema": "https://json-schema.org/draft/2020-12/schema",
     "title": "Log-based metric schema",
     "type": "object",

provisioning/configurations/schemas/slo.json → provisioning/schemas/configuration/slos.json

@@ -1,5 +1,4 @@
 {
-    "$id": "https://github.com/GoogleCloudPlatform/cloud-ops-sandbox/provisioning/schemas/slo.json",
     "$schema": "https://json-schema.org/draft/2020-12/schema",
     "title": "Service's SLO schema",
     "type": "object",