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Ivan Delić

Ivan Delić
in
Oracle Developers

Tweaking Installation of Ingress Nginx on OKE With Helm

Kubernetes workloads are often exposed through an Ingress rather than the plain Service itself. Ingress is the de facto standard when…

Sep 6

Tweaking Installation of Ingress Nginx on OKE With Helm

Sep 6

Ivan Delić

Best Kept OKE’s Secrets: Storing Secrets in OCI Vault

Secret management is a hot topic around Kubernetes security. Common challenges, such as secrets stored as plain text ¹ or the lack of…

May 17

Best Kept OKE’s Secrets: Storing Secrets in OCI Vault

May 17

Ivan Delić

Best Kept OKE's Secrets: Storing Secrets in Etcd

Keeping secrets safe is one of the leading security concerns in cloud-native architectures. We often store critical credentials as…

May 15

Best Kept OKE's Secrets: Storing Secrets in Etcd

May 15

Ivan Delić
in
Oracle Developers

Safeguarding OKE: Super-Admin vs. Regular User

OCI IAM policies significantly influence OKE internals and security. Depending on the Policy verbs for the cluster resource (e.g., manage…

Apr 18

Safeguarding OKE: Super-Admin vs. Regular User

Apr 18

Ivan Delić
in
Oracle Developers

Safeguarding OKE: Kubernetes API Server Access Control With OCI IAM and RBAC Explained

Every cluster owner’s mission is to safeguard the OKE API server perimeter. You probably don’t want to expose kubectl access to the public…

Apr 16

Safeguarding OKE: Kubernetes API Server Access Control With OCI IAM and RBAC Explained

Apr 16

Ivan Delić
in
Oracle Developers

Safeguarding OKE: Kubernetes Authentication and Authorization

Safeguarding OKE starts with access control for the Kubernetes API Server. The API Server is a part of the managed control plane of OKE…

Apr 10

Safeguarding OKE: Kubernetes Authentication and Authorization

Apr 10

Ivan Delić

How to Resolve Multi-Attach Error With Block Storage PVC in OKE Properly

If you faced an error Multi-Attach error for volume "csi-..." Volume is already used by pod(s) when creating a pod, it means that…

Apr 9

How to Resolve Multi-Attach Error With Block Storage PVC in OKE Properly

Apr 9

Ivan Delić

How to Define Cloud-Init Script in OKE Terraform Resource

The OCI provider for Terraform often provides minimalistic documentation around OKE, especially popular oci_containerengine_cluster and…

Apr 3

Apr 3

Ivan Delić

How to Customize Kube Reserved Resources in OKE

Did you ever experience sudden kubelet failure at runtime, resulting in disconnected worker nodes? It’s easy to spot since worker nodes are…

Mar 26

How to Customize Kube Reserved Resources in OKE

Mar 26

Ivan Delić
in
Oracle Developers

Pulling the OCIR images to OKE without Secrets

Wouldn’t it be nice for OKE to pull the container images from private OCIR repos in a passwordless mode, without stored secrets and…

Mar 22

Pulling the OCIR images to OKE without Secrets

Mar 22

Ivan Delić

Ivan Delić

I’m a solution engineer, developer, and architect with strong technical and social skills. My specialties are application development, architecture, and cloud.

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