Skip to content

Latest commit

 

History

History
177 lines (139 loc) · 4.07 KB

README.md

File metadata and controls

177 lines (139 loc) · 4.07 KB
Raw

OpenShift 4 UPI Installation

Branch

  • fedora35_ocp411_podman <tested 2022.10.07>
  • fedora31_ocp43_podman <tested 2020.01.28>
  • fedora31_ocp42_podman <tested 2020.01.15>
  • fedora28_ocp41_docker <tested 2019.07>

This script is for the demonstration how you can install Openshift 4 by UPI for bare metal with KVM.

The script is created by ansible, terraform.

Environment:

Overview

Please refer this slide

Video

OpenShift 4 installation using UPI(Bare metal) with KVM Overview

OpenShift 4 installation using UPI(Bare metal) with KVM Demo

Pre-requisites

  • Use non-root user which is added to sudoers 
    jooho	ALL=(ALL) 	NOPASSWD: ALL
%wheel	ALL=(ALL)	NOPASSWD: ALL
  • Add libvirt group to the user (Change %USER_NAME) 
    usermod -G libvirt %USER_NAME
  • Export LIBVIRT_DEFAULT_URI 
    export LIBVIRT_DEFAULT_URI=qemu:///system
or 
export LIBVIRT_DEFAULT_URI=qemu:///system?socket=/var/run/libvirt/virtqemud-sock

Steps

Normal installation with internet

1. Init (using ansible)

  • Create:
    • terraform
      • terraform.tfvars
      • connection.tf
    • ansible
      • inventory
    • cloud-init
      • user-data
      • meta-data

2. Prep (using ansible + terraform)

  • install_packages.yml (ansible)

    • podman

    • httpd

    • download_files.yml (ansible)

      • terraform_binary
      • terraform_provider_libvirt
      • terraform_provider_matchbox
      • rhcos_kernel
      • rhcos_initramfs
      • rhcos_bios
      • openshift_installer
      • matchbox_git_repo

    • dns_config.yml (ansible)

      • DSNMasq

    • matchbox_config.yml (ansible)

      • Generate certs
      • Deploy matchbox server

    • ocp_vm_config.yml (ansible)

      • Create ocp_module.tf file

    • Network (terrraform)

    • MatchBox config (terraform)

      • config matchbox

    • Deploy LB

      • Deploy VM (terraform)
      • Config haproxy (ansible)

3. OCP

  • Deploy OCP VM

4. Post

  • Patch registry storage to emptyDir
  • Wait for bootstrap-complete
  • Remove bootstrap from lb pool
  • Wait for install-complete

Disconnected Installation

1. Quay Deploy Quay Registry as a local registry and mirror required images

jkit commands

jkit is python script to provide easier way to config each steps.

1. Init ./jkit.py init -t [disconnect]

2. Prep ./jkit.py prep -t [disconnect] -op [apply,dtr] # dtr = destory

3. OCP ./jkit.py ocp -op [apply,dtr] # dtr = destory 4. Post ./jkit.py post 5. Quay ./jkit.py quay

  • Additional cmds

    • Clean

      • Delete default list 
        ./jkit.py clean
      • Delete quay/matchbox/network + default list 
        ./jkit.py clean --type=all
      • Delete quay 
        ./jkit.py clean --type=disconnected

    • Update

      jkit.py update -t [inventory(default),ocp,ocp_module]

    • Oneshot

      ./jkit.py oneshot

OCP debugging cmds

certificate

oc --config ${INSTALL_DIR}/auth/kubeconfig get nodes
oc --config ${INSTALL_DIR}/auth/kubeconfig get csr
oc --config ${INSTALL_DIR}/auth/kubeconfig get csr -o json | jq -r '.items[] | select(.status == {}) | .metadata.name' | xargs oc --config ${INSTALL_DIR}/auth/kubeconfig adm certificate approve

cluster operator

oc --config ${INSTALL_DIR}/auth/kubeconfig get clusteroperators

Errors

  • Network is not started

    • Solution: Restart libvirtd

  • Network upi and storage ocp4 already exist

    • Solution: Delete libvirt component Network upi and Storage ocp4 manaully