Using google_monitoring_dashboard with templates

[Rob Clark]

Hey All, has anyone tried to use the data template_file with google_monitoring_dashboard resource?

Here is what I am trying to do.

Basically we want to create a dashboard template for our pubsub subscriptions, this template would take 1 or many subs (It's up to the user to pass to the module). 

Here is my header template.

 "displayName": "${dash_name}",

  "gridLayout": {

    "columns": "2",

    "widgets": [

      ${chart_output}

    ]

    }

}

Basic chart template.

        "title": "Unread Messages",

        "xyChart": {

          "chartOptions": {

            "mode": "COLOR"

          },

          "dataSets": [

            {

              "minAlignmentPeriod": "60s",

              "plotType": "LINE",

              "timeSeriesQuery": {

                "timeSeriesFilter": {

                  "aggregation": {

                    "crossSeriesReducer": "REDUCE_SUM",

                    "groupByFields": [

                      "resource.label.\"subscription_id\""

                    ],

                    "perSeriesAligner": "ALIGN_SUM"

                  },

                  "filter": "metric.type=\"pubsub.googleapis.com/subscription/num_undelivered_messages\" resource.type=\"pubsub_subscription\" resource.label.\"subscription_id\"=\"${sub_name}\""

                },

                "unitOverride": "1"

              }

            }

          ],

          "timeshiftDuration": "0s",

          "yAxis": {

            "label": "y1Axis",

            "scale": "LINEAR"

          }

        }

Code:

resource "google_monitoring_dashboard" "pubsub-overview" {

dashboard_json = data.template_file.header_chart.rendered

}

data template_file "header_chart" {

template = "{${file("${path.module}/templates/header.tmpl")}"

vars = {

dash_name = var.dash_name

chart_output = jsonencode(join("\n" ,data.template_file.pubsub_chart.*.rendered))

}

}

data template_file "pubsub_chart" {

template = "{${file("${path.module}/templates/charts2.tmpl")}"

vars = {

sub_name = "${var.sub_name}"

}

}

Here is the error I am getting:

google_monitoring_dashboard.pubsub-overview: Creating...

Error: Error creating Dashboard: googleapi: Error 400: Invalid value at 'dashboard.grid_layout.widgets[0]' (type.googleapis.com/google.monitoring.dashboard.v1.Widget)

Thanks!