configure telegraf

compose.telegraf.yaml

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+services:
+  telegraf:
+    container_name: telegraf
+    image: telegraf:1.36.2
+    restart: unless-stopped
+    environment:
+      - TELEGRAF_DEBUG=true
+      - MQTT_USER=${TELEGRAF_MQTT_USER}
+      - MQTT_PASS=${TELEGRAF_MQTT_PASS}
+      - DATABASE_HOST=${TELEGRAF_DATABASE_HOST}
+      - DATABASE_PORT=${TELEGRAF_DATABASE_PORT}
+      - DATABASE_USER=${TELEGRAF_DATABASE_USER}
+      - DATABASE_PASS=${TELEGRAF_DATABASE_PASS}
+      - DATABASE_NAME=${TELEGRAF_DATABASE_NAME}
+    extra_hosts:
+    - host:192.168.2.200
+    volumes:
+      - /opt/telegraf/telegraf.conf:/etc/telegraf/telegraf.conf:ro

telegraf/telegraf.conf

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+###############################################################################
+#                            GENERAL
+###############################################################################
+
+[agent]
+  ## Global collection frequency
+  interval = "30s"
+  ## How often to flush data to outputs
+  flush_interval = "30s"
+  ## Random jitter to avoid all agents syncing at once
+  collection_jitter = "2s"
+  flush_jitter = "2s"
+  ## Precision of timestamps
+  precision = "1s"
+  ## Enable for more verbose logging
+  # debug = true
+  ## If true, processors do not run again after aggregators. Default is false.
+  skip_processors_after_aggregators=true
+
+###############################################################################
+#                            SYSTEM
+###############################################################################
+
+# CPU usage (user, system, idle)
+# [[inputs.cpu]]
+#   percpu = false
+#   totalcpu = true
+#   fielddrop = ["usage_nice", "usage_iowait", "usage_irq", "usage_softirq", "usage_steal", "usage_guest", "usage_guest_nice"]
+#   interval = "30s"
+
+# Memory (used, free)
+# [[inputs.mem]]
+#   fieldpass = ["used", "free", "used_percent"]
+#   interval = "30s"
+
+# Swap (used, free)
+# [[inputs.swap]]
+#   fieldpass = ["used", "free", "used_percent"]
+#   interval = "30s"
+
+# Disk usage (like df)
+# [[inputs.disk]]
+#   mount_points = ["/media/docker"]
+#   fieldpass = ["used", "free", "used_percent"]
+#   ignore_fs = ["tmpfs", "devtmpfs"]
+#   interval = "30s"
+
+# Disk I/O
+# [[inputs.diskio]]
+#   devices = ["sda", "sdb", "nvme0n1"]
+#   fieldpass = ["reads", "writes", "read_bytes", "write_bytes"]
+#   interval = "30s"
+
+# Load and uptime
+# [[inputs.system]]
+#   fieldpass = ["load1", "load5", "load15", "uptime"]
+#   interval = "1m"
+
+###############################################################################
+#                            MQTT
+###############################################################################
+
+[[inputs.mqtt_consumer]]
+  servers     = ["tcp://host:1883"]
+  username    = "${MQTT_USER}"
+  password    = "${MQTT_PASS}"
+  topics      = ["borgmatic/stats/#"]
+  data_format = "json"
+
+###############################################################################
+#                            DATABASE
+###############################################################################
+
+[[inputs.postgresql_extensible]]
+  address = "host=${DATABASE_HOST} port=${DATABASE_PORT} user=${DATABASE_USER} password=${DATABASE_PASS} dbname=${DATABASE_NAME} sslmode=disable"
+  interval = "1m"
+
+  [[inputs.postgresql_extensible.query]]
+    sqlquery = """
+      SELECT
+        datname,
+        pg_database_size(datname) AS size_bytes
+      FROM pg_database WHERE datname NOT IN ('template0', 'template1')
+    """
+    withdbname = false
+    measurement = "postgresql_database_size"
+
+  [[inputs.postgresql_extensible.query]]
+    sqlquery = """
+      SELECT
+          schemaname AS schema_name,
+          tablename AS table_name,
+          pg_total_relation_size(schemaname || '.' || tablename) AS size_bytes
+      FROM pg_tables
+      WHERE schemaname NOT IN ('pg_catalog', 'information_schema') AND schemaname NOT like '_timescaledb_%'
+    """
+    withdbname = true
+    measurement = "postgresql_table_size"
+
+###############################################################################
+#                            OUTPUTS
+###############################################################################
+
+[[outputs.sql]]
+  driver = "pgx"
+  data_source_name = "host=${DATABASE_HOST} port=${DATABASE_PORT} user=${DATABASE_USER} password=${DATABASE_PASS} dbname=${DATABASE_NAME} sslmode=disable"
+
+  # Only include specific measurements
+  # include_metrics = ["cpu", "mem", "swap", "disk", "diskio", "system"]
+
+  [outputs.sql.convert]
+    conversion_style     = "literal"
+    integer              = "BIGINT"
+    real                 = "DOUBLE PRECISION"
+    text                 = "TEXT"
+    timestamp            = "TIMESTAMPTZ"
+    defaultvalue         = "TEXT"
+    bool                 = "BOOLEAN"
+    unsigned             = "BIGINT"
+
+[[outputs.loki]]
+  domain = "http://host:3100"
+  timeout = "10s"
+
+  [[outputs.mqtt]]
+    servers     = ["tcp://host:1883"]
+    username    = "${MQTT_USER}"
+    password    = "${MQTT_PASS}"
+    topic       = "telegraf/metrics"
+    qos         = 0
+    retain      = false
+    client_id   = "telegraf"
+    data_format = "json"