Kostis Kapelonis (author) - Page 3

Kostis Kapelonis is a Principal Developer Advocate at Octopus Deploy. He lives and breathes automation, good testing practices and stress-free deployments with GitOps. He is also a member of the Argo team focusing mainly on Argo Rollouts and Argo CD.

How to Preview and Diff Your Argo CD Deployments

Kostis KapelonisJuly 24, 2023 • 17 min read
How to install and upgrade Argo CD

Kostis KapelonisOctober 14, 2022 • 6 min read
Recover automatically from failed deployments with Argo Rollouts and Prometheus metrics

Kostis KapelonisApril 14, 2022 • 9 min read
How to model your GitOps environments

Kostis KapelonisMarch 23, 2022 • 19 min read
Stop using branches for deploying to different GitOps environments

Kostis KapelonisDecember 17, 2021 • 11 min read
Using GitOps for infrastructure and applications with Crossplane and Argo CD

Kostis KapelonisDecember 13, 2021 • 6 min read
How to handle secrets like a pro using GitOps

Kostis KapelonisSeptember 3, 2021 • 7 min read
Unlimited preview environments with Kubernetes namespaces

Kostis KapelonisJuly 9, 2021 • 11 min read
Minimize failed deployments with Argo Rollouts and smoke tests

Kostis KapelonisMarch 26, 2021 • 7 min read
Using Helm to deploy Kubernetes to multiple environments

Kostis KapelonisDecember 22, 2020 • 10 min read
Enterprise CI/CD best practices – part 1

Kostis KapelonisNovember 12, 2020 • 13 min read
Enterprise CI/CD best practices – part 2

Kostis KapelonisNovember 12, 2020 • 11 min read

Three illustrated figures collaborate around a large code editor window, set against a dark blue background with a DevOps infinity loop symbol.

Optional ephemeral environments using GitHub PR labels

Ephemeral environments are great for PR reviews, but they're not always needed. In this post, I walk through how I used a simple GitHub PR label to make ephemeral environment deployments optional without breaking branch protection rules.

Matthew AllfordJune 23, 2026 • 7 min read

Octopus Deploy and GitHub logos connected by arrows.

GitHub Connections now available for self-hosted Octopus Server customers

GitHub Connections, via the Octopus Deploy App for GitHub, are now available for self-hosted Octopus Server customers

Michael RichardsonJune 18, 2026 • 3 min read

GitOps secrets with the CSI Secret Store driver

Securing your GitOps secrets with the Secret Store CSI driver

Learn how to use the Kubernetes secret store csi driver for your Argo CD secrets

Kostis KapelonisJune 18, 2026 • 9 min read

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