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Database - create postgresql backend and support backend switch with kusto (#117)
## Pull Request Overview This PR adds PostgreSQL as an alternative storage backend alongside the existing Kusto implementation. It introduces a storage abstraction layer through `ltp-storage-common`, implements a PostgreSQL SDK with schema management, and updates all services to support dual backends via a factory pattern. - Introduces `ltp-storage-common` package with shared data schemas, and storage factory - Implements `postgresql-sdk` with full CRUD operations, Alembic migrations, and Kusto-compatible interface and add a schema management service with health checks and migration support - Updates `kusto-sdk`, `alert-manager`, and `cluster-local-storage` to use the factory pattern for backend selection
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‎src/alert-manager/.gitignore‎

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@@ -3,4 +3,6 @@ node_modules/
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deploy/icm-certs/
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**/postgresql-sdk/
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**/kusto-sdk/
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**/ltp-storage-common/

‎src/alert-manager/build/alert-handler.common.dockerfile‎

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@@ -18,4 +18,8 @@ COPY ./src/alert-handler .
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RUN corepack enable && corepack install -g [email protected]
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RUN yarn install
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# install python and dependencies
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RUN apt-get install -y python3-pip
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RUN pip3 install --no-cache-dir -r requirements.txt --break-system-packages
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ENTRYPOINT ["npm", "start"]

‎src/alert-manager/build/build-pre.sh‎

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pushd $(dirname "$0") > /dev/null
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# Copy ltp-storage-common (shared data schemas, interfaces, and factory)
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cp -arfT "../../ltp-storage-common" "../src/node-recycler/ltp-storage-common"
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cp -arfT "../../ltp-storage-common" "../src/node-issue-classifier/ltp-storage-common"
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cp -arfT "../../ltp-storage-common" "../src/alert-parser/ltp-storage-common"
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cp -arfT "../../ltp-storage-common" "../src/job-data-recorder/ltp-storage-common"
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cp -arfT "../../ltp-storage-common" "../src/alert-handler/ltp-storage-common"
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# Copy SDKs (backend implementations)
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cp -arfT "../../kusto-sdk" "../src/node-recycler/kusto-sdk"
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cp -arfT "../../postgresql-sdk/sdk" "../src/node-recycler/postgresql-sdk"
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cp -arfT "../../kusto-sdk" "../src/node-issue-classifier/kusto-sdk"
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cp -arfT "../../postgresql-sdk/sdk" "../src/node-issue-classifier/postgresql-sdk"
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cp -arfT "../../kusto-sdk" "../src/alert-parser/kusto-sdk"
21+
cp -arfT "../../postgresql-sdk/sdk" "../src/alert-parser/postgresql-sdk"
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cp -arfT "../../kusto-sdk" "../src/job-data-recorder/kusto-sdk"
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cp -arfT "../../postgresql-sdk/sdk" "../src/job-data-recorder/postgresql-sdk"
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cp -arfT "../../postgresql-sdk/sdk" "../src/alert-handler/postgresql-sdk"
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# Copy other dependencies
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cp -arfT "../src/node-failure-detection/monitor/data_sources.py" "../src/job-data-recorder/data_sources.py"
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cp -arfT "../../database-controller/sdk" "../src/job-status-change-notification/openpaidbsdk"
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‎src/alert-manager/config/alert-manager.yaml‎

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@@ -12,6 +12,32 @@ actions-available:
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- drain-nodes
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- fix-nvidia-gpu-low-perf
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- cert-expiration-checker
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# ============================================================================
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# Storage Backend Configuration
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# ============================================================================
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# Global storage backend setting (applies to all services unless overridden)
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# Options: 'kusto' or 'postgresql'
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storage-backend: kusto
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# Kusto (Azure Data Explorer) Configuration
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# Only required if using Kusto backend (storage-backend: kusto)
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kusto:
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kusto-cluster: "" # e.g., https://your-cluster.kusto.windows.net
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kusto-database: "" # e.g., YourDatabase
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kusto-user-assigned-client-id: "" # For managed identity authentication
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node-status-table: NodeStatusRecord
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node-action-table: NodeActionRecord
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kusto-vm-table: "" # VM info table name
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# PostgreSQL Configuration
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# Only required if using PostgreSQL backend (storage-backend: postgresql)
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postgresql:
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schema: ltp_sdk # Default schema name
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# ============================================================================
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# Service Configuration
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# ============================================================================
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alert-handler:
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log-level: 'info'
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port: 9095
@@ -30,10 +56,8 @@ job-status-change-notification:
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db-poller-interval-second: 600
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node-issue-classifier:
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configured: False
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kusto: False
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node-recycler:
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configured: False
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kusto: False
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icm:
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host: prod.microsofticm.com
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crt_name: cert.pem

‎src/alert-manager/deploy/alert-manager-deployment.yaml.template‎

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Original file line numberDiff line numberDiff line change
@@ -80,6 +80,14 @@ spec:
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{%- endif %}
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- name: LOG_LEVEL
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value: {{ cluster_cfg["alert-manager"]["alert-handler"]["log-level"] }}
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- name: LTP_STORAGE_BACKEND_DEFAULT
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value: "{{ cluster_cfg['alert-manager']['alert-handler'].get('storage-backend', cluster_cfg['alert-manager'].get('storage-backend', 'kusto')) }}"
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{% if cluster_cfg["alert-manager"]["alert-handler"].get("storage-backend", cluster_cfg["alert-manager"].get("storage-backend", "kusto")) == "postgresql" %}
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- name: POSTGRES_CONNECTION_STR
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value: "{{ cluster_cfg['postgresql']['connection-str'] }}"
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- name: POSTGRES_SCHEMA
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value: "{{ cluster_cfg['alert-manager']['postgresql'].get('schema', 'ltp_sdk') }}"
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{% endif %}
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{% if 'email-admin' in cluster_cfg["alert-manager"]["actions-available"] %}
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- name: EMAIL_CONFIGS_ADMIN_RECEIVER
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value: {{ cluster_cfg["alert-manager"]["alert-handler"]["email-configs"]["admin-receiver"] }}
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value: {{ cluster_cfg["alert-manager"]["node-issue-classifier"]["log-level"] | default(cluster_cfg["alert-manager"]["log-level"]) | default("INFO") }}
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- name: CLASSIFICATION_INTERVAL_MINUTES
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value: "{{ cluster_cfg["alert-manager"]["node-issue-classifier"]["classification-interval-minutes"] | default("10") }}"
144-
{% if cluster_cfg["alert-manager"]["node-issue-classifier"]["kusto"] %}
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- name: COOCCURRED_HARDWARE_FAILURE_LIMIT
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value: "{{ cluster_cfg["alert-manager"]["node-issue-classifier"]["coccurred-hardware-failure-node-limit"] | default("5") }}"
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{% if cluster_cfg["alert-manager"]["node-issue-classifier"].get("storage-backend", cluster_cfg["alert-manager"].get("storage-backend", "kusto")) == "kusto" %}
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- name: KUSTO_USER_ASSIGNED_CLIENT_ID
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value: {{ cluster_cfg["alert-manager"]["kusto-user-assigned-client-id"] }}
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value: {{ cluster_cfg["alert-manager"]["kusto"]["kusto-user-assigned-client-id"] }}
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- name: LTP_KUSTO_CLUSTER_URI
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value: {{ cluster_cfg["alert-manager"]["node-issue-classifier"]["kusto-cluster"] | default(cluster_cfg["alert-manager"]["kusto-cluster"]) }}
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value: {{ cluster_cfg["alert-manager"]["node-issue-classifier"].get("kusto-cluster", cluster_cfg["alert-manager"]["kusto"]["kusto-cluster"]) }}
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- name: LTP_KUSTO_DATABASE_NAME
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value: {{ cluster_cfg["alert-manager"]["node-issue-classifier"]["kusto-database"] | default(cluster_cfg["alert-manager"]["kusto-database"]) }}
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value: {{ cluster_cfg["alert-manager"]["node-issue-classifier"].get("kusto-database", cluster_cfg["alert-manager"]["kusto"]["kusto-database"]) }}
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- name: KUSTO_NODE_STATUS_TABLE_NAME
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value: {{ cluster_cfg["alert-manager"]["node-issue-classifier"]["node-status-table"]
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| default(cluster_cfg["alert-manager"]["node-status-table"])
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| default("NodeStatusRecord") }}
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value: {{ cluster_cfg["alert-manager"]["node-issue-classifier"].get("node-status-table", cluster_cfg["alert-manager"]["kusto"]["node-status-table"]) }}
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- name: KUSTO_NODE_ACTION_TABLE_NAME
156-
value: {{ cluster_cfg["alert-manager"]["node-issue-classifier"]["node-action-table"]
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| default(cluster_cfg["alert-manager"]["node-action-table"])
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| default("NodeActionRecord") }}
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- name: COOCCURRED_HARDWARE_FAILURE_LIMIT
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value: "{{ cluster_cfg["alert-manager"]["node-issue-classifier"]["coccurred_hardware_failure_node_limit"] | default("5") }}"
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value: {{ cluster_cfg["alert-manager"]["node-issue-classifier"].get("node-action-table", cluster_cfg["alert-manager"]["kusto"]["node-action-table"]) }}
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{% endif %}
166+
# Storage backend selection
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- name: LTP_STORAGE_BACKEND_DEFAULT
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value: "{{ cluster_cfg['alert-manager']['node-issue-classifier'].get('storage-backend', cluster_cfg['alert-manager'].get('storage-backend', 'kusto')) }}"
169+
{% if cluster_cfg["alert-manager"]["node-issue-classifier"].get("storage-backend", cluster_cfg["alert-manager"].get("storage-backend", "kusto")) == "postgresql" %}
170+
- name: POSTGRES_CONNECTION_STR
171+
value: "{{ cluster_cfg['postgresql']['connection-str'] }}"
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- name: POSTGRES_SCHEMA
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value: "{{ cluster_cfg['alert-manager']['postgresql'].get('schema', 'ltp_sdk') }}"
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{% endif %}
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resources:
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requests:
@@ -187,30 +200,37 @@ spec:
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value: {{ cluster_cfg["alert-manager"]["alert-parser"]["uri"] | default(cluster_cfg["alert-manager"]["prometheus-uri"]) }}
188201
- name: PAI_TOKEN
189202
value: {{ cluster_cfg["alert-manager"]["pai-bearer-token"] }}
203+
{% if cluster_cfg["alert-manager"]["alert-parser"].get("storage-backend", cluster_cfg["alert-manager"].get("storage-backend", "kusto")) == "kusto" %}
190204
- name: KUSTO_USER_ASSIGNED_CLIENT_ID
191-
value: {{ cluster_cfg["alert-manager"]["kusto-user-assigned-client-id"] }}
205+
value: {{ cluster_cfg["alert-manager"]["kusto"]["kusto-user-assigned-client-id"] }}
192206
- name: LTP_KUSTO_CLUSTER_URI
193-
value: {{ cluster_cfg["alert-manager"]["alert-parser"]["kusto-cluster"] | default(cluster_cfg["alert-manager"]["kusto-cluster"]) }}
207+
value: {{ cluster_cfg["alert-manager"]["alert-parser"].get("kusto-cluster", cluster_cfg["alert-manager"]["kusto"]["kusto-cluster"]) }}
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- name: LTP_KUSTO_DATABASE_NAME
195-
value: {{ cluster_cfg["alert-manager"]["alert-parser"]["kusto-database"] | default(cluster_cfg["alert-manager"]["kusto-database"]) }}
209+
value: {{ cluster_cfg["alert-manager"]["alert-parser"].get("kusto-database", cluster_cfg["alert-manager"]["kusto"]["kusto-database"]) }}
196210
- name: KUSTO_NODE_STATUS_TABLE_NAME
197-
value: {{ cluster_cfg["alert-manager"]["alert-parser"]["node-status-table"]
198-
| default(cluster_cfg["alert-manager"]["node-status-table"])
199-
| default("NodeStatusRecord") }}
211+
value: {{ cluster_cfg["alert-manager"]["alert-parser"].get("node-status-table", cluster_cfg["alert-manager"]["kusto"]["node-status-table"]) }}
200212
- name: KUSTO_NODE_ACTION_TABLE_NAME
201-
value: {{ cluster_cfg["alert-manager"]["alert-parser"]["node-action-table"]
202-
| default(cluster_cfg["alert-manager"]["node-action-table"])
203-
| default("NodeActionRecord") }}
213+
value: {{ cluster_cfg["alert-manager"]["alert-parser"].get("node-action-table", cluster_cfg["alert-manager"]["kusto"]["node-action-table"]) }}
204214
- name: KUSTO_ALERT_CLUSTER
205-
value: "{{ cluster_cfg['alert-manager']['alert-parser']['alert-kusto-cluster'] | default('https://ltp-kusto-alerts.westus2.kusto.windows.net') }}"
215+
value: "{{ cluster_cfg['alert-manager']['alert-parser'].get('alert-kusto-cluster', 'https://ltp-kusto-alerts.westus2.kusto.windows.net') }}"
206216
- name: KUSTO_ALERT_DATABASE
207-
value: "{{ cluster_cfg['alert-manager']['alert-parser']['alert-kusto-database'] | default('DefaultWorkspace-id-westus2') }}"
217+
value: "{{ cluster_cfg['alert-manager']['alert-parser'].get('alert-kusto-database', 'DefaultWorkspace-id-westus2') }}"
208218
- name: LTP_KUSTO_VM_INFO_TABLE_NAME
209-
value: {{ cluster_cfg["alert-manager"]["alert-parser"]["kusto-vm-table"] | default(cluster_cfg["alert-manager"]["kusto-vm-table"]) }}
219+
value: {{ cluster_cfg["alert-manager"]["alert-parser"].get("kusto-vm-table", cluster_cfg["alert-manager"]["kusto"].get("kusto-vm-table", "")) }}
220+
{% endif %}
210221
- name: LTP_VMSS_IDS
211222
value: {{ cluster_cfg["alert-manager"]["alert-parser"]["vmss_ids"] | default(cluster_cfg["alert-manager"]["vmss_ids"]) }}
212223
- name: AZURE_CLIENT_ID
213224
value: {{ cluster_cfg["alert-manager"]["alert-parser"]["vmss_client_id"] | default(cluster_cfg["alert-manager"]["vmss_client_id"]) }}
225+
# Storage backend selection
226+
- name: LTP_STORAGE_BACKEND_DEFAULT
227+
value: "{{ cluster_cfg['alert-manager']['alert-parser'].get('storage-backend', cluster_cfg['alert-manager'].get('storage-backend', 'kusto')) }}"
228+
{% if cluster_cfg["alert-manager"]["alert-parser"].get("storage-backend", cluster_cfg["alert-manager"].get("storage-backend", "kusto")) == "postgresql" %}
229+
- name: POSTGRES_CONNECTION_STR
230+
value: "{{ cluster_cfg['postgresql']['connection-str'] }}"
231+
- name: POSTGRES_SCHEMA
232+
value: "{{ cluster_cfg['alert-manager']['postgresql'].get('schema', 'ltp_sdk') }}"
233+
{% endif %}
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resources:
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requests:
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memory: "2Gi"
@@ -232,21 +252,17 @@ spec:
232252
value: {{ cluster_cfg["cluster"]["common"]["cluster-id"] }}
233253
- name: ENVIRONMENT
234254
value: {{ cluster_cfg["alert-manager"]["node-recycler"]["environment"] | default("prod") }}
235-
{% if cluster_cfg["alert-manager"]["node-recycler"]["kusto"] %}
255+
{% if cluster_cfg["alert-manager"]["node-recycler"].get("storage-backend", cluster_cfg["alert-manager"].get("storage-backend", "kusto")) == "kusto" %}
236256
- name: KUSTO_USER_ASSIGNED_CLIENT_ID
237-
value: {{ cluster_cfg["alert-manager"]["kusto-user-assigned-client-id"] }}
257+
value: {{ cluster_cfg["alert-manager"]["kusto"]["kusto-user-assigned-client-id"] }}
238258
- name: LTP_KUSTO_CLUSTER_URI
239-
value: {{ cluster_cfg["alert-manager"]["node-recycler"]["kusto-cluster"] | default(cluster_cfg["alert-manager"]["kusto-cluster"]) }}
259+
value: {{ cluster_cfg["alert-manager"]["node-recycler"].get("kusto-cluster", cluster_cfg["alert-manager"]["kusto"]["kusto-cluster"]) }}
240260
- name: LTP_KUSTO_DATABASE_NAME
241-
value: {{ cluster_cfg["alert-manager"]["node-recycler"]["kusto-database"] | default(cluster_cfg["alert-manager"]["kusto-database"]) }}
261+
value: {{ cluster_cfg["alert-manager"]["node-recycler"].get("kusto-database", cluster_cfg["alert-manager"]["kusto"]["kusto-database"]) }}
242262
- name: KUSTO_NODE_STATUS_TABLE_NAME
243-
value: {{ cluster_cfg["alert-manager"]["node-recycler"]["node-status-table"]
244-
| default(cluster_cfg["alert-manager"]["node-status-table"])
245-
| default("NodeStatusRecord") }}
263+
value: {{ cluster_cfg["alert-manager"]["node-recycler"].get("node-status-table", cluster_cfg["alert-manager"]["kusto"]["node-status-table"]) }}
246264
- name: KUSTO_NODE_ACTION_TABLE_NAME
247-
value: {{ cluster_cfg["alert-manager"]["node-recycler"]["node-action-table"]
248-
| default(cluster_cfg["alert-manager"]["node-action-table"])
249-
| default("NodeActionRecord") }}
265+
value: {{ cluster_cfg["alert-manager"]["node-recycler"].get("node-action-table", cluster_cfg["alert-manager"]["kusto"]["node-action-table"]) }}
250266
{% endif %}
251267
{% if "icm" in cluster_cfg["alert-manager"]["node-recycler"] %}
252268
- name: ICM_HOST
@@ -272,6 +288,15 @@ spec:
272288
value: {{ cluster_cfg["rest-server"]["uri"] }}
273289
- name: REST_SERVER_TOKEN
274290
value: {{ cluster_cfg["alert-manager"]["pai-bearer-token"] }}
291+
# Storage backend selection
292+
- name: LTP_STORAGE_BACKEND_DEFAULT
293+
value: "{{ cluster_cfg['alert-manager']['node-recycler'].get('storage-backend', cluster_cfg['alert-manager'].get('storage-backend', 'kusto')) }}"
294+
{% if cluster_cfg["alert-manager"]["node-recycler"].get("storage-backend", cluster_cfg["alert-manager"].get("storage-backend", "kusto")) == "postgresql" %}
295+
- name: POSTGRES_CONNECTION_STR
296+
value: "{{ cluster_cfg['postgresql']['connection-str'] }}"
297+
- name: POSTGRES_SCHEMA
298+
value: "{{ cluster_cfg['alert-manager']['postgresql'].get('schema', 'ltp_sdk') }}"
299+
{% endif %}
275300
resources:
276301
requests:
277302
memory: "1Gi"
@@ -377,26 +402,35 @@ spec:
377402
value: "{{ cluster_cfg["alert-manager"]["job-data-recorder"]["run-interval"] | default("3h") }}"
378403
- name: RECORD_RETAIN_TIME
379404
value: "{{ cluster_cfg["alert-manager"]["job-data-recorder"]["record-retain-time"] | default("30d") }}"
380-
- name: KUSTO_METRICS_TABLE
381-
value: "{{ cluster_cfg["alert-manager"]["job-data-recorder"]["kusto-metrics-table"] | default("JobSummary") }}"
382-
- name: KUSTO_REACT_TABLE
383-
value: "{{ cluster_cfg["alert-manager"]["job-data-recorder"]["kusto-react-table"] | default("JobReactTime") }}"
384-
- name: KUSTO_USER_ASSIGNED_CLIENT_ID
385-
value: {{ cluster_cfg["alert-manager"]["kusto-user-assigned-client-id"] }}
386-
- name: LTP_KUSTO_CLUSTER_URI
387-
value: {{ cluster_cfg["alert-manager"]["job-data-recorder"]["kusto-cluster"] | default(cluster_cfg["alert-manager"]["kusto-cluster"]) }}
388-
- name: LTP_KUSTO_DATABASE_NAME
389-
value: {{ cluster_cfg["alert-manager"]["job-data-recorder"]["kusto-database"] | default(cluster_cfg["alert-manager"]["kusto-database"]) }}
390405
- name: REST_SERVER_URI
391406
value: {{ cluster_cfg["rest-server"]["uri"] }}
392407
- name: PROMETHEUS_SERVER_URI
393408
value: {{ cluster_cfg["alert-manager"]["job-data-recorder"]["prometheus-uri"] | default(cluster_cfg["alert-manager"]["prometheus-uri"]) }}
394-
- name: KUSTO_NODE_ACTION_TABLE_NAME
395-
value: {{ cluster_cfg["alert-manager"]["job-data-recorder"]["node-action-table"]
396-
| default(cluster_cfg["alert-manager"]["node-action-table"])
397-
| default("NodeActionRecord") }}
398409
- name: PAI_TOKEN
399410
value: {{ cluster_cfg["alert-manager"]["pai-bearer-token"] }}
411+
{% if cluster_cfg["alert-manager"]["job-data-recorder"].get("storage-backend", cluster_cfg["alert-manager"].get("storage-backend", "kusto")) == "kusto" %}
412+
- name: KUSTO_METRICS_TABLE
413+
value: "{{ cluster_cfg["alert-manager"]["job-data-recorder"].get("kusto-metrics-table", "JobSummary") }}"
414+
- name: KUSTO_REACT_TABLE
415+
value: "{{ cluster_cfg["alert-manager"]["job-data-recorder"].get("kusto-react-table", "JobReactTime") }}"
416+
- name: KUSTO_USER_ASSIGNED_CLIENT_ID
417+
value: {{ cluster_cfg["alert-manager"]["kusto"]["kusto-user-assigned-client-id"] }}
418+
- name: LTP_KUSTO_CLUSTER_URI
419+
value: {{ cluster_cfg["alert-manager"]["job-data-recorder"].get("kusto-cluster", cluster_cfg["alert-manager"]["kusto"]["kusto-cluster"]) }}
420+
- name: LTP_KUSTO_DATABASE_NAME
421+
value: {{ cluster_cfg["alert-manager"]["job-data-recorder"].get("kusto-database", cluster_cfg["alert-manager"]["kusto"]["kusto-database"]) }}
422+
- name: KUSTO_NODE_ACTION_TABLE_NAME
423+
value: {{ cluster_cfg["alert-manager"]["job-data-recorder"].get("node-action-table", cluster_cfg["alert-manager"]["kusto"]["node-action-table"]) }}
424+
{% endif %}
425+
# Storage backend selection
426+
- name: LTP_STORAGE_BACKEND_DEFAULT
427+
value: "{{ cluster_cfg['alert-manager']['job-data-recorder'].get('storage-backend', cluster_cfg['alert-manager'].get('storage-backend', 'kusto')) }}"
428+
{% if cluster_cfg["alert-manager"]["job-data-recorder"].get("storage-backend", cluster_cfg["alert-manager"].get("storage-backend", "kusto")) == "postgresql" %}
429+
- name: POSTGRES_CONNECTION_STR
430+
value: "{{ cluster_cfg['postgresql']['connection-str'] }}"
431+
- name: POSTGRES_SCHEMA
432+
value: "{{ cluster_cfg['alert-manager']['postgresql'].get('schema', 'ltp_sdk') }}"
433+
{% endif %}
400434
resources:
401435
requests:
402436
memory: "2Gi"

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