deployment

GitLab: Continuous Deployment with Agent for Kubernetes and GitLab pipeline


Categories: DevOps

GitLab pipelines are frequently used for the building of binaries and publishing of images to container registries, but do not always follow through with Continuous Deployment to a live environment. One reason is that pipelines do not usually have access to the internal systems where these applications are meant to be deployed. In this article, … GitLab: Continuous Deployment with Agent for Kubernetes and GitLab pipeline

GitLab: automated build and publish of multi-platform container image with GitLab pipeline


Categories: Containers, DevOps

GitLab CI/CD pipelines can be used to automatically build and push Docker images to the GitLab Container Registry. Beyond building a simple image, in this article I will show how to define a workflow that builds and pushes a multi-platform image (amd64,arm64,arm32) with manifest index to the GitLab Container Registry.  This is enabled by using … GitLab: automated build and publish of multi-platform container image with GitLab pipeline

Github: automated build and publish of multi-platform container image with Github Actions


Categories: Containers, DevOps

Github Actions provide the ability to define a build workflow based on Github repository events.  The workflow steps are defined as yaml and can be triggered by various events, including a code push, branch, or tagging in the repository. In this article, I will show how to define workflow steps that build and push a … Github: automated build and publish of multi-platform container image with Github Actions

Kubernetes: patching container arguments array with kubectl and jq


Categories: Kubernetes

The need to configure a specific pod’s container arguments is a common Kubernetes administration task.  As examples, you might need to enable verbose logging, set an explicit value to override a default, or configure a host name or port set in a container’s arguments. In the example below, we are targeting the ‘metrics-server’ in the … Kubernetes: patching container arguments array with kubectl and jq

GCP: Cloud Run with build trigger coming from remote GitHub repository


Categories: Containers, Development, Hyperscaler

GCP build triggers can easily handle Continuous Deployment (CD) when the source code is homed in a Google Cloud Source repository.  But even if the system of record for your source is a remote GitHub repository, these same type of push and tag events can be consumed if you configure a connection and repository link. … GCP: Cloud Run with build trigger coming from remote GitHub repository

Kubernetes: list all pods in deployment


Categories: Kubernetes, Scripting

Listing all the pods belonging to a deployment can be done by querying its selectors, but using the deployment’s synthesized replicaset identifier allows for easier automation. # deployment name and namespace deployment_name=mydeployment deployment_ns=mynamespace # get replica set identifier for deployment dep_rs=$(kubectl describe deployment $deployment_name -n $deployment_ns | grep ^NewReplicaSet | awk ‘{print $2}’) # get … Kubernetes: list all pods in deployment

Github: automated build and publish of containerized GoLang app with Github Actions


Categories: Containers, Development

Github Actions provide the ability to define a build workflow based on Github repository events.  The workflow steps are defined as yaml and can be triggered by various events, including a code push, branch, or tagging in the repository. In this article I will detail the steps of creating a statically-linked GoLang binary that when … Github: automated build and publish of containerized GoLang app with Github Actions

Github: automated Github release for Spring Boot jar using Github Actions


Categories: Development, Java

Github Actions provide the ability to define a build workflow directly in Github.  The workflow steps are defined as yaml and can be triggered by various events, including a code push, branch, or tagging in the repository. In this article I will detail the steps of creating a simple Spring Boot web application that when … Github: automated Github release for Spring Boot jar using Github Actions

Github: automated build and publish of containerized Spring Boot app using GitHub Actions


Categories: Containers, Development, Java

Github Actions provide the ability to define a build workflow directly in Github.  The workflow steps are defined as yaml and can be triggered by various events, including a code push, branch, or tagging in the repository. In this article I will detail the steps of creating a simple Spring Boot web application that when … Github: automated build and publish of containerized Spring Boot app using GitHub Actions

Kubernetes: running a mail container for testing email during development


Categories: Containers

If you are in the development lifecycle and need to quickly test email functionality, you can deploy the codecentric/mailhog image directly within Kubernetes.  It will receive all email regardless of address, and from its web interface show you all the email that has been received. In this article, I will show you how to deploy … Kubernetes: running a mail container for testing email during development

CloudFoundry: Using Blue-Green deloyment and route mapping for continuous deployment


Categories: Containers

One of the goals of Continuous Deployment (CD) is an automated deployment and patching process.  And as your  organization becomes more efficient at deployment and velocity increases, you want to ensure that availability is maintained while keeping risk to a minimum. Cloud Foundry supports route mapping that allows you to stand up a new live … CloudFoundry: Using Blue-Green deloyment and route mapping for continuous deployment