monitoring/

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Published: Feb 8, 2018 License: Apache-2.0

README

Cloud Monitoring Sample

Simple command-line program to demonstrate connecting to the Google Monitoring API to retrieve API data.

listresources demonstrates how to read the Google Cloud Monitoring v3 environment such as Monitored Resources and Metric Descriptors.

custommetric demonstrates how to create a custom metric, write a timeseries value to it, and read it back.

Prerequisites to run locally:

Create local credentials by running the following command and following the oauth2 flow:

gcloud beta auth application-default login

Set Up Your Local Dev Environment

go get the code and change into the directory:

go get -u github.com/GoogleCloudPlatform/golang-samples/monitoring/...
cd $GOPATH/src/github.com/GoogleCloudPlatform/golang-samples/monitoring

To run the example that prints the environment, run:

go run listresources/*.go <your-project-id>

To run the example that creates a custom metric and writes to it, run:

go run custommetric/*.go <your-project-id>

Running on GCE, GAE, or other environments

On Google App Engine, the credentials should be found automatically.

On Google Compute Engine, the credentials should be found automatically, but require that you create the instance with the correct scopes.

gcloud compute instances create --scopes="https://www.googleapis.com/auth/cloud-platform,https://www.googleapis.com/auth/compute,https://www.googleapis.com/auth/compute.readonly" test-instance

If you did not create the instance with the right scopes, you can still upload a JSON service account and set GOOGLE_APPLICATION_CREDENTIALS as described below.

Using a Service Account

In non-Google Cloud environments, GCE instances created without the correct scopes, or local workstations if the gcloud beta auth application-default login command fails, use a Service Account by doing the following:

  • Go to API Manager -> Credentials
  • Click 'New Credentials', and create a Service Account or click here.
  • Download the JSON for this service account, and set the GOOGLE_APPLICATION_CREDENTIALS environment variable to point to the file containing the JSON credentials.

export GOOGLE_APPLICATION_CREDENTIALS=~/Downloads/<project-id>-0123456789abcdef.json

Directories

Path Synopsis
Command custommetric creates a custom metric and writes TimeSeries value to it.
Command custommetric creates a custom metric and writes TimeSeries value to it.
Command listresources lists the Google Cloud Monitoring v3 Environment against an authenticated user.
Command listresources lists the Google Cloud Monitoring v3 Environment against an authenticated user.
[START monitoring_quickstart] Sample monitoring-quickstart writes a data point to Stackdriver Monitoring.
[START monitoring_quickstart] Sample monitoring-quickstart writes a data point to Stackdriver Monitoring.

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