api

GCP: publishing and reading from Google PubSub Topic using Python client libraries


Categories: Hyperscaler, Python

Google Pub/Sub is a managed messaging platform providing a scalable, asynchronous, loosely-coupled solution for communication between application entities. It centers around the concept of a Topic (queue).  A Publisher can put messages on the Topic, and a Subscriber can read messages from the Subscription on a Topic. In this article, I will first use the … GCP: publishing and reading from Google PubSub Topic using Python client libraries

GitLab: self-managed runner for CI/CD jobs on GCP VM instances


Categories: DevOps

The globally shared set of GitLab runners for CI/CD jobs works well for building binaries, publishing images, and reaching out to publicly available endpoints for services and infrastructure building. But the ability to run a private, self-managed runner can grant pipelines entirely new levels of functionality on several fronts: Can communicate openly to private, internal … GitLab: self-managed runner for CI/CD jobs on GCP VM instances

GitLab: generating URL that can be used for Merge Request from fork to upstream


Categories: Development

The forked workflow is popularized by the Open Source community where your personal contributions are made by having your own personal fork of a repository and pushing a GitLab Merge Request to a central repository. A GitLab Merge Request can be submitted from the web UI by clicking on “Merge requests” and manually selecting the … GitLab: generating URL that can be used for Merge Request from fork to upstream

Kubernetes: Using Downward API metadata from a GoLang application


Categories: Containers

In a previous post, I described the Kubernetes Downward API and how it allows us to inject pod/container metadata into our runtime container. In this article, I’ll show how you can read the environment variables and mounted files from inside a containerized GoLang based application.

Kubernetes: Using Downward API metadata from a Python application


Categories: Containers

In a previous post, I described the Kubernetes Downward API and how it allows us to inject pod/container metadata into our runtime container. In this article, I’ll show how you can read the environment variables and mounted files from inside a containerized Python based application.

CloudFoundry: Determining buildpack used by application


Categories: Containers

The “cf app” command will provide a brief expansion of a buildpack’s settings, but does not provide an exact buildpack name.  Luckily, this can easily be pulled using “cf curl” and the CloudFoundry API. Assuming you have the jq utility for parsing/querying json output: # set name of cloudfoundry app app=”my-cf-app” # using name, pull … CloudFoundry: Determining buildpack used by application

CloudFoundry: Installing a BOSH Director on AWS


Categories: Containers, Virtualization

BOSH is a project that unifies release, deployment, and lifecycle management of cloud based software.  It also serves as the underlying infrastructure for deploying the CloudFoundry PaaS. In this article, I will lead you through deploying the BOSH Director to Amazon EC2 which is the first step in deploying both CloudFoundry CFAR as well as CFCR … CloudFoundry: Installing a BOSH Director on AWS

Zabbix: Zabbix REST API using a Go client


Categories: Scripting

The open-source Zabbix monitoring solution has a REST API that provides the ability for deep integrations with your existing monitoring, logging, and alerting systems. This fosters development of community-driven modules like Ryan Day’s zabbix Go language package, which is an easy way to automate Zabbix tasks like creating hosts and manipulating other back end structures. One of the nice things … Zabbix: Zabbix REST API using a Go client

Zabbix: Accessing Zabbix using the py-zabbix Python module


Categories: Monitoring, Python

The open-source Zabbix monitoring solution has a REST API that provides the ability for deep integrations with your existing monitoring, logging, and alerting systems. This fosters development of community-driven modules like the py-zabbix Python module, which is an easy way to automate Zabbix as well as send/retrieve metrics.