documentation updates

docker-compose/influxdb/docker-compose.yml

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+version: '3'
+
+services:
+  influxdb:
+    container_name: influxdb
+    image: influxdb:2.1-alpine
+    ports:
+      - '8086:8086'
+    volumes:
+      - influxdb-data:/var/lib/influxdb2
+    # # Automatically setup influxdb
+    # environment:
+    #   - DOCKER_INFLUXDB_INIT_MODE=setup
+    #   - DOCKER_INFLUXDB_INIT_USERNAME=my-user
+    #   - DOCKER_INFLUXDB_INIT_PASSWORD=my-password
+    #   - DOCKER_INFLUXDB_INIT_ORG=my-org
+    #   - DOCKER_INFLUXDB_INIT_BUCKET=my-bucket
+    # # (optional) Configure Data Retention
+    #   - DOCKER_INFLUXDB_INIT_RETENTION=1w
+    # # (optional) Admin Token
+    #   - DOCKER_INFLUXDB_INIT_ADMIN_TOKEN=my-super-secret-auth-token
+    # # (optional) Configure TLS
+    # TODO: no tested
+    # command: influxd --tls-cert=/etc/ssl/cert.pem --tls-key=/etc/ssl/cert-key.pem