Add watchdog config to start being able to port from superset to prom…

…etheus/grafana (#104)

per [#77 over in
watchdog](medic/cht-watchdog#77)

.gitignore

@@ -1,3 +1,4 @@
+.idea
 .vscode/
 node_modules/
 secrets/

watchdog-config/extra-sql-compose.yml

@@ -0,0 +1,35 @@
+services:
+
+  prometheus:
+    volumes:
+      - ./app-monitoring-data-ingest/extra-sql-prometheus.yml:/etc/prometheus/scrape_configs/extra-sql-prometheus.yml:ro
+
+  grafana:
+    volumes:
+      - ./app-monitoring-data-ingest/extra-sql-dashboard.json:/etc/grafana/provisioning/dashboards/CHT/cht_admin_extra_sql.json:ro
+
+  extra_sql_exporter:
+    image: prometheuscommunity/postgres-exporter:latest
+    command:
+#      - '--config.file=/etc/postgres-exporter/postgres_exporter.yml'
+      # disables the collection of all metrics except for custom queries (https://github.com/medic/cht-watchdog/issues/70)
+      - '--no-collector.database'
+      - '--no-collector.postmaster'
+      - '--no-collector.process_idle'
+      - '--no-collector.replication'
+      - '--no-collector.replication_slot'
+      - '--no-collector.stat_bgwriter'
+      - '--no-collector.stat_database'
+      - '--no-collector.statio_user_tables'
+      - '--no-collector.stat_statements'
+      - '--no-collector.stat_user_tables'
+      - '--disable-default-metrics'
+      - '--disable-settings-metrics'
+    volumes:
+      - ./app-monitoring-data-ingest/extra-sql-queries.yml:/extra-sql-queries.yml
+    environment:
+      DATA_SOURCE_NAME: "postgresql://${EXTRA_SQL_USER:-NO DB USER SPECIFIED}:${EXTRA_SQL_PASS:-NO DB PASSWORD SPECIFIED}@${EXTRA_SQL_SERVER:-.NO DB SERVER SPECIFIED}:${EXTRA_SQL_PORT:-5431}/${EXTRA_SQL_DATABASE:-dwh_impact}?sslmode=disable"
+      PG_EXPORTER_EXTEND_QUERY_PATH: "/extra-sql-queries.yml"
+    restart: always
+    networks:
+      - cht-watchdog-net