Query idle terraform cloud agent count and send as metric to datadog

tfc.sh

#!/bin/bash
# Before running this script, be sure to set the secrets
# export TFC_TOKEN=secret_token
# export DD_API_KEY=another_secret
# export AGENT_POOL_ID=some_id

idle_agent_count=$(curl \
  --header "Authorization: Bearer $TFC_TOKEN" \
  --header "Content-Type: application/vnd.api+json" \
  --request GET \
  https://app.terraform.io/api/v2/agent-pools/${AGENT_POOL_ID}/agents | grep -o -i idle | wc -l | xargs)

## Dynamic Points
# Post time-series data that can be graphed on Datadog’s dashboards.
# Template variables
now="$(date +%s)"
# Curl command
curl -X POST "https://api.datadoghq.com/api/v2/series" \
-H "Accept: application/json" \
-H "Content-Type: application/json" \
-H "DD-API-KEY: ${DD_API_KEY}" \
-d @- << EOF
{
  "series": [
    {
      "metric": "tfc_christian.idle_agent_count",
      "type": 3,
      "points": [
        {
          "timestamp": ${now},
          "value": ${idle_agent_count}
        }
      ]
    }
  ]
}
EOF