opsgenie_maintenance.sh

#!/bin/bash
# create and delete maintenance

set -e

GENIEKEY=YourOpsGenieKey
INTEGRATION_ID=YourIntegrationId
MAINTENANCE_DESCRIPTION="RepositorySyncronization"

# OpsGenie expects a format like yyyy-MM-dd'T'HH:mm:ssZ) (e.g. 2017-01-15T08:00:00+02:00)
DURATION=30
FROM_TIME=$(date --iso-8601=seconds)
TO_TIME=$(date --iso-8601=seconds -d "+$DURATION min")

echo "Setting maintenance from $FROM_TIME to $TO_TIME"

# create the maintenance, store the ID in a variable for later reference
MAINTENANCE_ID=$(curl -s -X POST 'https://api.opsgenie.com/v1/maintenance' --header "Authorization: GenieKey $GENIEKEY" --header 'Content-Type: application/json' --data '{
    "description": "'$MAINTENANCE_DESCRIPTION'",
    "time": {
        "type" : "schedule",
        "startDate": "'$FROM_TIME'",
        "endDate": "'$TO_TIME'"
    },
    "rules": [
        {
            "entity": {
                "id": "'$INTEGRATION_ID'",
                "type": "integration"
            }
        }
    ]
}' | jq '.data.id')

echo "Maintenance created: $MAINTENANCE_ID"

# delete created maintenance
curl -X DELETE https://api.opsgenie.com/v1/maintenance/"$MAINTENANCE_ID" --header 'Authorization: GenieKey $GENIEKEY'

echo "Maintenance deleted: $MAINTENANCE_ID"