init devops repo

Mirrors cipherdolls/devops layout. Hostinger Swarm stacks for the t4t
hosted-gateway and local docker-compose for development + e2e tests.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

hostinger/prometheus.yml

@@ -0,0 +1,48 @@
+global:
+  scrape_interval: 15s
+  evaluation_interval: 15s
+
+scrape_configs:
+  - job_name: "traefik"
+    static_configs:
+      - targets: ["traefik:8080"]
+
+  - job_name: "prometheus"
+    static_configs:
+      - targets: ["localhost:9090"]
+
+  - job_name: "grafana"
+    static_configs:
+      - targets: ["grafana:3000"]
+
+  - job_name: "loki"
+    static_configs:
+      - targets: ["loki:3100"]
+
+  - job_name: "node-exporter"
+    dns_sd_configs:
+      - names:
+          - "tasks.system_node-exporter"
+        type: A
+        port: 9100
+
+  - job_name: "postgres-exporter"
+    dns_sd_configs:
+      - names:
+          - "tasks.prod_postgres-exporter"
+        type: A
+        port: 9187
+
+  - job_name: "cadvisor"
+    dns_sd_configs:
+      - names:
+          - "tasks.system_cadvisor"
+        type: A
+        port: 8080
+
+  - job_name: "hosted-gateway"
+    dns_sd_configs:
+      - names:
+          - "tasks.prod_api"
+        type: A
+        port: 8080