Grafana

Install and Setup TIG Stack on Ubuntu 20.04

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In this tutorial, we are going to learn how to install and setup TIG Stack on Ubuntu 20.04.

TIG stack is a group of powerful open-source monitoring tools, Telegraf, InfluxDB and Grafana where;

  • Telegraf is an open-source server agent for collecting and sending metrics and events from databases, systems, and IoT sensors.
  • InfluxDB is an open-source time series database and provides datastore for metrics, events, and real-time analytics.
  • Grafana is a data visualization and monitoring tool and supports time series datastores such as Graphite, InfluxDB, Prometheus, Elasticsearch.

TIG stack can be used for monitoring system metrics such as memory, disk, logged in users, system load, swap usage, system uptime, system processes. 

Installing and Setup TIG Stack on Ubuntu 20.04

In order to install TIG stack, you need to install and setup each individual component of the stack, Telegraf, InfluxDB, Grafana.

Run System Update
To begin with, ensure that your system packages are up-to-date;

apt update
apt upgrade

Install Telegraf on Ubuntu 20.04

You can install Telegraf on Ubuntu 20.04 either by downloading the DEB package file or directly from the InfluxData repos.

Install Telegraf using DEB Package File

To install Telegraf using the DEB binary, grab the binary installer from the InfluxData downloads page. You can simply obtain the link to binary installer and pull it with wget;

wget https://dl.influxdata.com/telegraf/releases/telegraf_1.14.3-1_amd64.deb

Once you have the binary downloaded, you can install it as follows

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Linux Monitoring using Grafana InfluxDB and Telegraf on Debian 10

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The basic installation of Grafana InfluxDB and Telegraf is described in my other post here-

Install Grafna, InfluxDB, Telegraf for Jitsi Video Meet Monitoring on Debian 10

All is needed is to create a telegraf configuration file:

nano /etc/telegraf.d/dashboard.conf

# Global tags can be specified here in key="value" format.
[global_tags]
# dc = "us-east-1" # will tag all metrics with dc=us-east-1
# rack = "1a"
## Environment variables can be used as tags, and throughout the config file
# user = "$USER"

# Configuration for telegraf agent
[agent]
interval = "10s"
round_interval = true
metric_batch_size = 1000
metric_buffer_limit = 10000
collection_jitter = "0s"
flush_interval = "10s"
flush_jitter = "0s"
precision = ""
debug = false
quiet = false
hostname = ""
omit_hostname = false

### OUTPUT

# Configuration for influxdb server to send metrics to
[[outputs.influxdb]]
urls = ["http://your_host:8086"]
database = "telegraf_metrics"

## Retention policy to write to. Empty string writes to the default rp.
retention_policy = ""
## Write consistency (clusters only), can be: "any", "one", "quorum", "all"
write_consistency = "any"

## Write timeout (for the InfluxDB client), formatted as a string.
## If not provided, will default to 5s. 0s means no timeout (not recommended).
timeout = "5s"
# username = "telegraf"
# password = "2bmpiIeSWd63a7ew"
## Set the user agent for HTTP POSTs (can be useful for log differentiation)
# user_agent = "telegraf"
## Set UDP payload size, defaults to InfluxDB UDP Client default (512 bytes)
# udp_payload = 512

# Read metrics about cpu usage
[[inputs.cpu]]
## Whether to report per-cpu stats or not
percpu = true
## Whether to report total system cpu stats or not
totalcpu = true
## Comment this line if you want the raw CPU time metrics
fielddrop = ["time_*"]

# Read metrics about disk usage by mount point
[[inputs.disk]]
## By default, telegraf gather stats for all mountpoints.
## Setting mountpoints will restrict the stats to the specified mountpoints.
# mount_points = ["/"]

## Ignore some mountpoints by filesystem type. For example (dev)tmpfs (usually
## present on /run, /var/run, /dev/shm or /dev).
ignore_fs = ["tmpfs", "devtmpfs"]

# Read metrics about disk IO by device
[[inputs.diskio]]
## By default, telegraf will gather stats for all devices including
## disk partitions.
## Setting devices will restrict the stats to the specified devices.
# devices = ["sda", "sdb"]
## Uncomment the following line if you need disk serial numbers.
# skip_serial_number = false

# Get kernel statistics from /proc/stat
[[inputs.kernel]]
# no configuration

# Read metrics about memory usage
[[inputs.mem]]
# no configuration

# Get the number of processes and group them by status
[[inputs.processes]]
# no configuration

# Read metrics about swap memory usage
[[inputs.swap]]
# no configuration

# Read metrics about system load & uptime
[[inputs.system]]
# no configuration

# Read metrics about network interface usage
[[inputs.net]]
# collect data only about specific interfaces
# interfaces = ["eth0"]

[[inputs.netstat]]
# no configuration

[[inputs.interrupts]]
# no configuration

[[inputs.linux_sysctl_fs]]
# no configuration

Update the necessary paramaters accordign to your installations.

Import the Grafana Dashboard Template from here-

https://grafana.com/grafana/dashboards/928

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