FTP server on K8s with F5
FTP is a legacy protocol that requires specific knowledge. Most young engineers have never used it. Kubernetes is modern, but complicated. Most senior engine...
Posts by Tag
- kubernetes 10
- blogging 8
- aws 8
- azure 7
- linux 5
- redhat 4
- f5 4
- big-ip 3
- home projects 3
- sslo 3
- centos 3
- openshift 2
- meetup 2
- gke 2
- eks 2
- openssl 2
- ai 2
- minikube 1
- docker 1
- aks 1
- terraform 1
- palo-alto 1
- nginx 1
- nodejs 1
- windows 1
kubernetes
My experience installing Ollama and Open WebUI - part 2
Ugh, installing Ollama and Open Web UI locally (not with containers) was a pain, so here’s why I don’t prefer it
My experience installing Ollama and Open WebUI
Ugh, installing Ollama and Open Web UI locally (not with containers) was a pain, so here’s why I don’t prefer it
Making K8s shutdowns more graceful
This post discusses measures a K8s admin can take to allow for more graceful shutdowns, using preStop hooks and terminationGracePeriodSeconds.
Quickly get your kubeconfig file
Quick notes to copy and grab your kubeconfig file when using hosted clusters.
GKE cluster with ‘GKE Dataplane V2’ deploy via cmd line
GKE Dataplane V2 GKE Dataplane V2 is a new eBPF-based dataplane that replaces iptables. Previously GKE used Calico but this v2 dataplane uses Cilium. Y...
How I deploy OpenShift in a hurry
Like many posts, this one is going to be quick and rough. Today is Nov 2, 2023, and the latest release of OpenShift is curently version 4.14. If you wan...
kubectl commands to remember
Easy kubectl commands This is a short list of kubectl commands that I use frequently. The idea of this blog post is to save me from searching my Notepad++ ta...
Get, List, Watch verbs in Kubernetes RBAC
This post describes the watch verb, which I had taken for granted before today
Exposing apps in Minikube to remote hosts
Minikube is a handy tool for a quick K8s cluster running locally. But it’s only available locally, not to other machines on the network. Here’s a few ways to...
blogging
Migrate Bitnami Wordpress between servers, Part 3
I hate Wordpress, so I’m creating a post to remember how I migrated this site.
Migrate Bitnami Wordpress between servers, Part 2
I hate Wordpress, so I’m creating a post to remember how I migrated this site.
Migrate Bitnami Wordpress between servers
I hate Wordpress, so I’m creating a post to remember how I migrated this site.
Let’s Encrypt cert automation for Bitnami Wordpress
I will forget if I don’t document this. How to configure SSL certs for Bitnami Wordpress.
Migrating my Jekyll theme to Minimal Mistakes
This post covers the changes I made to move from the default Jekyll theme to the current theme, Minimal Mistakes
More tips I learned about Jekyll
These are the tips I’ve learned to use while blogging with Jekyll this week
Tips I learned about Jekyll today
This is a short post intended to take note of the changes I made to this blog today. Today’s learning tips Categories vs Tags When I started using ...
Why I’m blogging here
How did we end up here? Hi! I’m Michael O’Leary, and this is my first blog post on this site. I’m a Senior Solutions Architect at F5, and I love my job. My g...
aws
Use topology labels to reduce cross-AZ ingress traffic with F5 CIS and EKS
This solution outlines how to use CIS when you are looking to reduce cross-AZ traffic in AWS EKS
Terraform, AWS AMI and the DeprecationTime attribute
Today I learned the hard way about AWS AMI deprecation times. Here’s some quick notes that may save you some time one day.
Quickly get your kubeconfig file
Quick notes to copy and grab your kubeconfig file when using hosted clusters.
Inbound SSLo and AWS notes - part 3
Brief notes about AWS, SSLO, PA and Fortinet. These are rough notes I made during my first successful deployment of SSLo in AWS using GWLB and Fortinet.
Quickly search for F5 images in Azure and AWS
This post contains commands for searching the AWS and Azure VM image marketplaces, so that I can quickly copy and paste next time.
Inbound SSLo and AWS notes - part 2
Brief notes about AWS, SSLO, PA and Fortinet. These are rough notes I made during my first successful deployment of SSLo in AWS using GWLB and Fortinet.
Inbound SSLo and AWS notes
My first article on F5 SSLo deployed in AWS.
Argh. BIG-IP IPSEC VPN to AWS TGW
Sorry in advance. This is a rushed post intended for rough note taking for myself. Argh, IPSec VPN Typically I don’t like to use appliance-based VPN connect...
azure
F5 CFE, private endpoints, and custom DNS
Recently a customer had a trifecta of conditions that forced me to think of a new solution, so I thought to document this.
Transparent load balancing in Azure, Part 2
Here’s the details for a specific BIG-IP set up behind Azure LB.
Quickly get your kubeconfig file
Quick notes to copy and grab your kubeconfig file when using hosted clusters.
Using Azure’s Cross-region Load Balancer with F5 BIG-IP
This post covers the new Azure Cross-region load balancer.
Quickly search for F5 images in Azure and AWS
This post contains commands for searching the AWS and Azure VM image marketplaces, so that I can quickly copy and paste next time.
More on Azure LB and flow symmetry
Yesterday I wrote a blog post with some notes on Azure LB and thought out loud about Azure LB and flow symmetry. I still think it acts more like DAG than a n...
Azure LB and a few advanced notes
I deal with Azure Load Balancer a lot, and occasionally the Azure Gateway Load Balancer (GWLB) and, once in a while, other PaaS offerings like Application Ga...
linux
My Ubuntu server post-deploy script
This is intended to be updated. This is my post deploy steps when using Hyper-V and Quick Create for Ubuntu 22.04
Centos and Red Hat notes, part 3
Unlike Windows Server, which I learned ‘from the ground up’ by reading textbooks, I’ve just sort of learned Linux on the job over the years. Now I’m going ba...
Centos and Red Hat notes, part 2
Unlike Windows Server, which I learned ‘from the ground up’ by reading textbooks, I’ve just sort of learned Linux on the job over the years. Now I’m going ba...
Centos and Red Hat notes, part 1
Unlike Windows Server, which I learned ‘from the ground up’ by reading textbooks, I’ve just sort of learned Linux on the job over the years. Now I’m going ba...
Exposing apps in Minikube to remote hosts
Minikube is a handy tool for a quick K8s cluster running locally. But it’s only available locally, not to other machines on the network. Here’s a few ways to...
redhat
Centos and Red Hat notes, part 3
Unlike Windows Server, which I learned ‘from the ground up’ by reading textbooks, I’ve just sort of learned Linux on the job over the years. Now I’m going ba...
Centos and Red Hat notes, part 2
Unlike Windows Server, which I learned ‘from the ground up’ by reading textbooks, I’ve just sort of learned Linux on the job over the years. Now I’m going ba...
Centos and Red Hat notes, part 1
Unlike Windows Server, which I learned ‘from the ground up’ by reading textbooks, I’ve just sort of learned Linux on the job over the years. Now I’m going ba...
How I deploy OpenShift in a hurry
Like many posts, this one is going to be quick and rough. Today is Nov 2, 2023, and the latest release of OpenShift is curently version 4.14. If you wan...
f5
Achieving BIG-IP High Availability with Azure Route Server
This one is a draft and will probably be a DevCentral Article.
Quickly test UDP on XC with NTP
I can never remember this one-liner so here it is to bookmark.
Deploying OpenShift with metal nodes
OpenShift can be expensive to try out, so this is a cheap(ish) way to deploy that is still fast
F5 CFE, private endpoints, and custom DNS
Recently a customer had a trifecta of conditions that forced me to think of a new solution, so I thought to document this.
big-ip
Use topology labels to reduce cross-AZ ingress traffic with F5 CIS and EKS
This solution outlines how to use CIS when you are looking to reduce cross-AZ traffic in AWS EKS
Quickly deploy a BIG-IP VM in Azure
This one is for the times I don’t want to use F5’s quickstart example. I want a single template (not nested templates)
Argh. BIG-IP IPSEC VPN to AWS TGW
Sorry in advance. This is a rushed post intended for rough note taking for myself. Argh, IPSec VPN Typically I don’t like to use appliance-based VPN connect...
home projects
Lessons learned building my own workbench - part 3
Lessons learned and a few pictures, part 3
Lessons learned building my own workbench - part 2
Lessons learned and a few pictures, part 2
Lessons learned building my own workbench
Lessons learned and a few pictures, part 1
sslo
Inbound SSLo and AWS notes - part 3
Brief notes about AWS, SSLO, PA and Fortinet. These are rough notes I made during my first successful deployment of SSLo in AWS using GWLB and Fortinet.
Inbound SSLo and AWS notes - part 2
Brief notes about AWS, SSLO, PA and Fortinet. These are rough notes I made during my first successful deployment of SSLo in AWS using GWLB and Fortinet.
Inbound SSLo and AWS notes
My first article on F5 SSLo deployed in AWS.
centos
Centos and Red Hat notes, part 3
Unlike Windows Server, which I learned ‘from the ground up’ by reading textbooks, I’ve just sort of learned Linux on the job over the years. Now I’m going ba...
Centos and Red Hat notes, part 2
Unlike Windows Server, which I learned ‘from the ground up’ by reading textbooks, I’ve just sort of learned Linux on the job over the years. Now I’m going ba...
Centos and Red Hat notes, part 1
Unlike Windows Server, which I learned ‘from the ground up’ by reading textbooks, I’ve just sort of learned Linux on the job over the years. Now I’m going ba...
openshift
Deploying OpenShift with metal nodes
OpenShift can be expensive to try out, so this is a cheap(ish) way to deploy that is still fast
How I deploy OpenShift in a hurry
Like many posts, this one is going to be quick and rough. Today is Nov 2, 2023, and the latest release of OpenShift is curently version 4.14. If you wan...
meetup
The benefits of publishing tech articles
This post explains why I think writing technical articles has many benefits beyond the immediate purpose of specific knowledge sharing.
The benefits of hosting a Meetup
This post explains why every engineer can benefit from the experience of hosting a community or professional meetup
gke
Quickly get your kubeconfig file
Quick notes to copy and grab your kubeconfig file when using hosted clusters.
GKE cluster with ‘GKE Dataplane V2’ deploy via cmd line
GKE Dataplane V2 GKE Dataplane V2 is a new eBPF-based dataplane that replaces iptables. Previously GKE used Calico but this v2 dataplane uses Cilium. Y...
eks
Use topology labels to reduce cross-AZ ingress traffic with F5 CIS and EKS
This solution outlines how to use CIS when you are looking to reduce cross-AZ traffic in AWS EKS
Quickly get your kubeconfig file
Quick notes to copy and grab your kubeconfig file when using hosted clusters.
openssl
When OpenSSL knowledge helps
This week I wasted time unnecessarily converting certificate and key file formats, and this post explains why.
Quickly create openssl cert and key
I can never remember this one-liner so here it is to bookmark.
ai
My experience installing Ollama and Open WebUI - part 2
Ugh, installing Ollama and Open Web UI locally (not with containers) was a pain, so here’s why I don’t prefer it
My experience installing Ollama and Open WebUI
Ugh, installing Ollama and Open Web UI locally (not with containers) was a pain, so here’s why I don’t prefer it
minikube
Exposing apps in Minikube to remote hosts
Minikube is a handy tool for a quick K8s cluster running locally. But it’s only available locally, not to other machines on the network. Here’s a few ways to...
docker
Docker install and run hello world
This is purely for my own note taking I run these commands a few times a month when I’m setting up a VM for troubleshooting purposes. Hopefully I can find t...
aks
Quickly get your kubeconfig file
Quick notes to copy and grab your kubeconfig file when using hosted clusters.
terraform
Terraform, AWS AMI and the DeprecationTime attribute
Today I learned the hard way about AWS AMI deprecation times. Here’s some quick notes that may save you some time one day.
palo-alto
Quickly deploy a Palo Alto VM in Azure
After too many one-off ARM templates, I’m documenting a simple and reusable ARM template for myself. Use this when deploying a PA firewall in Azure.
nginx
Google LB and PROXY protocol demo using NGINX
This started as a quick and dirty demo to show NGINX and PROXY protocol, and turned into a Node JS web app that I’ll re-use one day.
nodejs
Google LB and PROXY protocol demo using NGINX
This started as a quick and dirty demo to show NGINX and PROXY protocol, and turned into a Node JS web app that I’ll re-use one day.
windows
New laptop set up details and tricks
My laptop SSD died and I’ve been issued a replacement. This documents my workstation set up in case I need to do it again.