John Hanley

Security, software development and devops in a cloud world - AWS, Azure, Google, IBM & Alibaba

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DevOps

Google OAuth 2.0 – Testing with Curl – Refresh Access Token

In my earlier article on how to test Google OAuth 2.0 flows from the command line I showed how to generate Google OAuth 2.0 Access Token, Refresh Token, and ID Token. In this article, I will show how to refresh… Continue Reading →

Google OAuth 2.0 – Testing with Curl – Version 2

If you have ever wanted to test Google OAuth 2.0 flows from the command line, you will like this short article. This article is the second version. I wrote a previous article on using curl, but that version did not… Continue Reading →

Google Cloud IAM – Listing Projects

This article shows how to display a list of Google Cloud Projects that you have access to list. This article includes two examples in Python that use two different Google Cloud Python libraries. These examples produce the same output as the… Continue Reading →

Google Cloud – Creating OAuth Access Tokens for REST API Calls

The following example shows several important steps to call Google Cloud APIs without using an SDK in Python. Similar code works in just about any language (c#, java, php, nodejs). Change the source code with the filename of your service… Continue Reading →

Google Cloud – Converting Service Account Credentials from P12 to Json Format

I have written a number of articles about Google Cloud Credentials. For Service Account credentials, there are two on-disk formats: P12 and Json. This article shows how to convert these credentials from P12 to Json.

 

Google Cloud – Extracting Private Key from Service Account P12 Credentials

Google Service Account Credentials are available in two file formats: Json and P12. P12 is also known as PFX. The following code shows how to process a P12 file and split into Private Key and Certificate. This code also works… Continue Reading →

Google Cloud – Creating Access Tokens from Service Account P12 Credentials

Google Service Account Credentials are available in two file formats: Json and P12. P12 is also known as PFX. The following code shows how to use P12 credentials to list the buckets in Google Cloud Storage without using an SDK…. Continue Reading →

Google Cloud Stackdriver – IP Addresses

I have worked with Google Cloud Stackdriver for about three months. The more I learn about Stackdriver the more I like it. Great product for logging, monitoring, error reporting, application tracing and application debugging and more. One of the items… Continue Reading →

Google OAuth 2.0 – Testing with Curl

Introduction If you have ever wanted to test Google OAuth 2.0 flows from the command-line, you will like this short article. [Update: I thought about the problem below with the copy and paste requirement. I created a simple python web… Continue Reading →

Google Cloud – Creating and Authorizing Service Account Credentials with the CLI

This article is written for Windows, but the same principles apply to Linux and Mac. A service account is a special Google account that is used with applications or services, such as, Google Compute Engine. Service account credentials are stored… Continue Reading →

Google Cloud – Where are my credentials stored

Google Cloud stores your credentials in a database on your system. These credentials can then be used over and over. Google’s choice of a database means that the CLI and SDK tools can manage a huge number of credentials efficiently…. Continue Reading →

Google Cloud – Setting up Gcloud with Service Account Credentials

In this article we will download and install the Google gcloud CLI. Then we will setup gcloud with Google Service Account credentials. This article is for Windows based system but the same principles apply to Linux and Mac systems. Step… Continue Reading →

Google Cloud – Understanding Gcloud Configurations

This article is written for Windows, but the same principles apply to Linux and Mac. I need to work with multiple Google Cloud accounts and be able to easily switch my credentials between accounts. For those of you with AWS… Continue Reading →

Google Cloud Private DNS Zones

On October 23, 2018, Google introduced private DNS zones for Google Cloud DNS. This is an important announcement as this keeps internal DNS names private. Today’s article covers how to implement this new feature in Google Cloud Platform. Update: May… Continue Reading →

Let’s Encrypt – Debian 9 on Google Compute Instance

Let’s Encrypt is a Certificate Authority (CA) that issues free SSL certifications. I have used these certificates on web servers, cloud functions, load balancers, and many more. In this article I will show how to obtain an SSL certificate from… Continue Reading →

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