Meter Passport Relayer
A dashboard for Meter blockchain node and Meter Passport Relayer key metrics monitoring. Includes relayer's logs as well as ETH, MTR and BNB balances monitoring. Uses InfluxDB as a data source.
### Do not forget to replace {{ template_variables }} in all given examples of Telegraf configuration files

# Dashboard description
The dasboard has 3 sections

The first one shows balances for relayer's address in ETH, MTR and BNB as well as bridge balances in all these blockchains

The second section shows relayer's host key metrics such as CPU, RAM and disk usage, number of running docker containers and logs from relayer's container

The last section is for Meter node. Use it if you host your own node. It shows node's CPU, RAM and Disk utilization, number of running containers and tracks the tip of the blockachain. You can find there a panel with highest imported block number and a panel with blocks imported per minute information

You can find `telegraf.conf` example for meter-passport-relayer in the Collector Configuration Details section

Telegraf configuration for meter node uses the same `cpu`, `mem`, `disk` and `docker` inputs as for relayer with some additions for blockchain metrics. Here is the `telegraf.conf` for meter-node:

```ini
[global_tags]
[agent]
  interval = "30s"
  round_interval = true
  metric_batch_size = 1000
  metric_buffer_limit = 10000
  collection_jitter = "0s"
  flush_interval = "10s"
  flush_jitter = "0s"
  hostname = "meter"
  omit_hostname = false
  logfile = "/var/log/telegraf/telegraf.log"

[[inputs.cpu]]
  percpu = false
  totalcpu = true
  collect_cpu_time = false
  fieldpass = ["usage_idle"]

[[inputs.mem]]
  fieldpass = ["used_percent"]

[[inputs.disk]]
  ignore_fs = ["tmpfs", "devtmpfs", "devfs", "iso9660", "overlay", "aufs", "squashfs"]
  fieldpass = ["used_percent","free"]

# Node container
[[inputs.docker]]
  endpoint = "unix:///var/run/docker.sock"
  gather_services = false
  container_name_include = ["*"]
  timeout = "5s"
  perdevice = false
  total = false
  fieldpass = ["n_containers_running"]

## Meter blockchain metrics
# Highest block number
[[inputs.http]]
  urls = ["http://localhost:8669/blocks/best"]
  method = "GET"
  headers = {"Content-Type" = "application/json"}
  data_format = "json"
  json_string_fields = ["number"]
  [inputs.http.tags]
    api_endpoint = "blocks"
```
```ini
[global_tags]
[agent]
  interval = "30s"
  round_interval = true
  metric_batch_size = 1000
  metric_buffer_limit = 10000
  collection_jitter = "0s"
  flush_interval = "10s"
  flush_jitter = "0s"
  hostname = "meter-relayer"
  omit_hostname = false
  logfile = "/var/log/telegraf/telegraf.log"

[[inputs.cpu]]
  percpu = false
  totalcpu = true
  collect_cpu_time = false
  fieldpass = ["usage_idle"]

[[inputs.mem]]
  fieldpass = ["used_percent"]

[[inputs.disk]]
  ignore_fs = ["tmpfs", "devtmpfs", "devfs", "iso9660", "overlay", "aufs", "squashfs"]
  fieldpass = ["used_percent","free"]

# Relayer container
[[inputs.docker]]
  endpoint = "unix:///var/run/docker.sock"
  gather_services = false
  container_name_include = ["*"]
  timeout = "5s"
  perdevice = false
  total = false
  fieldpass = ["n_containers_running"]

[[inputs.docker_log]]

## Inputs to monitor relayer and bridge balances
# ETH balance
[[inputs.http]]
  urls = ["{{ eth_rpc_endpoint }}"]
  method = "POST"
  body = '{"jsonrpc":"2.0","method":"eth_getBalance","params":["{{ relayer_address }}", "latest"],"id":3}'
  headers = {"Content-Type" = "application/json"}
  data_format = "json"
  json_string_fields = ["result"]
  [inputs.http.tags]
    blockchain = "ethereum"
    address = "relayer"

[[inputs.http]]
  urls = ["{{ eth_rpc_endpoint }}"]
  method = "POST"
  body = '{"jsonrpc":"2.0","method":"eth_getBalance","params":["{{ eth_bridge_address }}", "latest"],"id":3}'
  headers = {"Content-Type" = "application/json"}
  data_format = "json"
  json_string_fields = ["result"]
  [inputs.http.tags]
    blockchain = "ethereum"
    address = "bridge"

# MTR balance
[[inputs.http]]
  urls = ["{{ mtr_rpc_endpoint }}"]
  method = "POST"
  body = '{"jsonrpc":"2.0","method":"eth_getBalance","params":["{{ relayer_address }}", "latest"],"id":3}'
  headers = {"Content-Type" = "application/json"}
  data_format = "json"
  json_string_fields = ["result"]
  [inputs.http.tags]
    blockchain = "meter"
    address = "relayer"

[[inputs.http]]
  urls = ["{{ mtr_rpc_endpoint }}"]
  method = "POST"
  body = '{"jsonrpc":"2.0","method":"eth_getBalance","params":["{{ mtr_bridge_address }}", "latest"],"id":3}'
  headers = {"Content-Type" = "application/json"}
  data_format = "json"
  json_string_fields = ["result"]
  [inputs.http.tags]
    blockchain = "meter"
    address = "bridge"

# BNB balance
[[inputs.http]]
  urls = ["{{ bsc_rpc_endpoint }}"]
  method = "POST"
  body = '{"jsonrpc":"2.0","method":"eth_getBalance","params":["{{ relayer_address }}", "latest"],"id":3}'
  headers = {"Content-Type" = "application/json"}
  data_format = "json"
  json_string_fields = ["result"]
  [inputs.http.tags]
    blockchain = "bsc"
    address = "relayer"

[[inputs.http]]
  urls = ["{{ bsc_rpc_endpoint }}"]
  method = "POST"
  body = '{"jsonrpc":"2.0","method":"eth_getBalance","params":["{{ bsc_bridge_address }}", "latest"],"id":3}'
  headers = {"Content-Type" = "application/json"}
  data_format = "json"
  json_string_fields = ["result"]
  [inputs.http.tags]
    blockchain = "bsc"
    address = "bridge"

## Convert "result" field from hexadecimal string to float
[[processors.converter]]
  [processors.converter.fields]
    float = ["result"]

[[outputs.influxdb]]
  urls = ["{{ telegraf_influxdb_url }}"]
  database = "{{ telegraf_influxdb_database }}"
  username = "{{ telegraf_influxdb_username }}"
  password = "{{ telegraf_influxdb_password }}"
```
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      "panels": [],
      "title": "Relayer",
      "type": "row"
    },
    {
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              "type": "gt"
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