Kostis Kapelonis (author) - Page 2

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.

Securing Argo CD in a multi-tenant environment with application projects

Kostis KapelonisOctober 17, 2024 • 11 min read
The 4 stages of the Argo maturity curve

Kostis KapelonisOctober 9, 2024 • 11 min read
GitOps secrets with Argo CD, HashiCorp Vault, and External Secret Operator

Kostis KapelonisAugust 1, 2024 • 11 min read
Create temporary Argo CD preview environments based on pull requests

Kostis KapelonisJuly 26, 2024 • 12 min read
Multi-service progressive delivery with Argo Rollouts

Kostis KapelonisJuly 2, 2024 • 9 min read
Introducing GitOps versions: A unified way to version your Argo CD applications

Kostis KapelonisJune 21, 2024 • 6 min read
10 Docker anti-patterns

Kostis KapelonisApril 26, 2024 • 21 min read
Progressive delivery for stateful services using Argo Rollouts

Kostis KapelonisFebruary 1, 2024 • 9 min read
Introducing Products: A tool to model Argo CD application relationships and promotions

Kostis KapelonisDecember 8, 2023 • 6 min read
Using GitOps for databases

Kostis KapelonisSeptember 12, 2023 • 7 min read
Progressive delivery for Kubernetes config maps using Argo Rollouts

Kostis KapelonisSeptember 1, 2023 • 8 min read
Database migrations in the era of Kubernetes microservices

Kostis KapelonisAugust 16, 2023 • 12 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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