Notes

Static Pods using Kubelet on Fedora

Extension to the Kelsey Hightower's tutorial on 'Standalone Kubelet'

Suraj Deshmukh

2 minute read

I wanted to try out Standalone Kubelet Tutorial of Kelsey Hightower by myself but I could not follow it as it is, because it was firstly on GCE and secondly it uses CoreOS, but since I am very familiar to Fedora I thought of following that tutorial on it. To get a quick setup of a fresh Fedora machine use Vagrant. I have used Vagrantfile available here. This blog is only replacement of section Install the Standalone Kubelet in tutorial.

Clean Node setup

This will help in intalling node without sudo

Suraj Deshmukh

1 minute read

Make sure you have npm installed. $ sudo dnf -y install npm Package npm-1:3.10.10-1.6.10.3.1.fc25.x86_64 is already installed, skipping. Dependencies resolved. Nothing to do. Complete! Taken from this post. mkdir "${HOME}/.npm-packages" echo ‘prefix=${HOME}/.npm-packages’ | tee -a ~/.npmrc echo ‘ #====================================== # npm related stuff NPM_PACKAGES="${HOME}/.npm-packages" PATH="$NPM_PACKAGES/bin:$PATH" # Unset manpath so we can inherit from /etc/manpath via the manpath command unset MANPATH # delete if you already modified MANPATH elsewhere in your config export MANPATH="$NPM_PACKAGES/share/man:$(manpath)" #====================================== ‘ | tee -a ~/.

Quick PV for local Kubernetes cluster

A hostPath based local PV creation process for using via PVC

Suraj Deshmukh

1 minute read

I do lot of Kubernetes related work either on minikube or local OpenShift cluster setup in a VM. Often I need to create a PersistentVolumeClaim a.k.a. pvc. But to use pvc you have to have a PersistentVolume or pv defined. Enter into the machine running k8s If using minikube you can do minikube ssh Create a local directory for storage mkdir /tmp/pv0001 chmod 777 /tmp/pv0001 If you are on a machine that has SELinux enabled do the following

k8s on CRI-O - single node

How to make kubernetes use CRI-O as container runtime

Suraj Deshmukh

2 minute read

Here is a single node Kubernetes on CRI-O. This setup is done on Fedora 25. Installing OS dependencies dnf -y install \ go \ git \ btrfs-progs-devel \ device-mapper-devel \ glib2-devel \ glibc-devel \ glibc-static \ gpgme-devel \ libassuan-devel \ libgpg-error-devel \ libseccomp-devel \ libselinux-devel \ pkgconfig \ wget \ etcd \ iptables Creating go environment cd ~ mkdir -p ~/go export GOPATH=~/go export GOBIN=$GOPATH/bin export PATH=$PATH:$GOBIN echo ‘GOPATH=~/go’ >> ~/.

rpm Notes

General notes about rpm packaging and references to upstream docs

Suraj Deshmukh

2 minute read

Setup of the system for building rpms $ dnf -y install fedora-packager fedora-review $ sudo usermod -a -G mock vagrant $ fedora-packager-setup $ kinit surajd@FEDORAPROJECT.ORG My Notes Start reading from: Fedora packager’s guide Some macros come from redhat-rpm-config and fedora-rpm-macros. $ sudo rpm -ql redhat-rpm-config-45-1.fc25.noarch To see all macros on the system: $ rpm –showrc Koji - fedora build system fedora uses fedpkg for doing builds, while rpmbuild is for CentOS To get general info about the package $ rpm -qip .

Intellij Shortcuts

Shortcuts of intellij and also some short notes

Suraj Deshmukh

5 minute read

Note: This is a living document and will be updated as I discover new things. Shortcuts Ctrl + Shift + A Find any action in IDE Ctrl + Shift + F Find in Path Alt + 1 Open project navigator. You can search here, just start typing here, after the project navigator window is opened. Shift + Insert in Project window Here you can add new file to the project.

Suraj Deshmukh

4 minute read

Note: This is a living document and will be updated from time to time. Following are steps to package kompose for CentOS PAAS SIG. CentOS PAAS SIG is a repository of packages where rpms related to OpenShift and eco-system around it are delivered. Setup your machine Install packages needed sudo yum update -y && \ sudo yum install -y epel-release && \ sudo yum install -y rpm-build go redhat-rpm-config make koji \ gcc byobu rpmlint rpmdevtools centos-packager Setup certs

Suraj Deshmukh

2 minute read

I generally do kompose package testing for fedora and CentOS. So here are the steps I follow. Fedora For respective fedora version use the tag respectively for e.g. 25 for fedora 25. Starting the environment: docker run -it registry.fedoraproject.org/fedora:26 bash Running tests:

Inside the container # Pull packages from the testing repository dnf –enablerepo updates-testing -y install kompose # Check the kompose version kompose version # Install the testing dependencies dnf install -y jq make # Pull the git repository to run the functional tests git clone https://github.