Chore/add pushgateway to stg env

compose.yml

@@ -35,6 +35,10 @@ services:
       retries: 10
       start_period: "10s"
       test: ["CMD", "wget", "http://localhost:9090"]
+  pushgateway:
+    <<: *default_policy
+    container_name: pushgateway
+    image: prom/pushgateway:v1.10.0
   https-portal:
     <<: *default_policy
     container_name: https-portal
@@ -49,6 +53,7 @@ services:
     depends_on:
       - grafana
       - prometheus
+      - pushgateway
       - loki
 
 volumes:

stg/compose.stg.yml

@@ -16,5 +16,9 @@ services:
       - ./stg/prometheus/config/web.yaml:/etc/prometheus/web.yaml
   https-portal:
     environment:
-      DOMAINS: "stg.grafana.cloudnativedays.jp -> http://grafana:3000, stg.loki.cloudnativedays.jp -> http://loki:3100, stg.prometheus.cloudnativedays.jp -> http://prometheus:9090"
+      DOMAINS: >
+        stg.grafana.cloudnativedays.jp -> http://grafana:3000,
+        stg.loki.cloudnativedays.jp -> http://loki:3100,
+        stg.prometheus.cloudnativedays.jp -> http://prometheus:9090,
+        stg.pushgateway.cloudnativedays.jp -> http://pushgateway:9091
       STAGE: production

stg/prometheus/config/prometheus.yaml

@@ -36,4 +36,8 @@ scrape_configs:
     scheme: https
     static_configs:
       - targets:
-          - staging.dev.cloudnativedays.jp
+          - staging.dev.cloudnativedays.jp
+  - job_name: pushgateway
+    static_configs:
+      - targets:
+        - pushgateway:9091