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@bh7cw
bh7cw / FCOS-Fedora CoreOS
Created June 6, 2020 19:14
Launch FCOS:
Launch FCOS on AWS with Ignition: FCOS reads and applies configuration files with Ignition.
Launching with QEMU-hypervisor(temporary/persistent storage) or libvirt
Install FCOS on bare metal with live ISO or PXE
Migrating from Fedora Atomic Host (FAH) to Fedora CoreOS (FCOS)
OS:
1. Red Hat CoreOS: a focused OS for OpenShift, released and life-cycled in tandem with the platform.
2. Fedora CoreOS (FCOS): combine the best of both CoreOS Container Linux and Fedora Atomic Host,
provide the best container host to run containerized workloads securely and at scale.
@bh7cw
bh7cw / Producing an Ignition File
Created June 7, 2020 01:23
Ref:
https://docs.fedoraproject.org/en-US/fedora-coreos/producing-ign/
@bh7cw
bh7cw / rpm-ostree
Created June 7, 2020 02:14
OSTree is an upgrade system for Linux-based operating systems that performs atomic upgrades of complete filesystem trees.
It is not a package system; rather, it is intended to complement them.
A primary model is composing packages on a server, and then replicating them to clients.
The underlying architecture might be summarized as "git for operating system binaries".
It operates in userspace, and will work on top of any Linux filesystem.
rpm: "Red Hat Package Manager" but now "RPM Package Manager".
Build rpm:
https://docs.google.com/document/d/1KrxNdQOUY3Jzw0GDA1P3VcXbMAn-JYy_pc6Bz4IdKTQ/edit
@bh7cw
bh7cw / Build RHCOS with COSA
Last active June 26, 2020 03:51
sudo curl -kL -o /etc/pki/ca-trust/source/anchors/Red_Hat_IT_Root_CA.crt https://password.corp.redhat.com/RH-IT-Root-CA.crt
sudo update-ca-trust
# fetch the Red Hat CoreOS configuration
cosa init https://gitlab.cee.redhat.com/coreos/redhat-coreos.git
cosa fetch
cosa build
@bh7cw
bh7cw / add cosa and rhcos commit
Last active June 26, 2020 21:12
I am trying to tackle this issue https://issues.redhat.com/browse/GRPA-2086
This is my commit in cosa https://github.com/bh7cw/coreos-assembler/commit/1cf18ba390af2083b16516b9a6da9ac9d446041e
Then, I tested the code:
1) create a trigger on quay.io to build image after Git repo is pushed https://quay.io/repository/bh7cw/coreos-assembler?tab=builds
2) Run the cosa on local machine:
cosa file:
#!/usr/bin/env bash
# this script will use podman, but docker will work too
rpm -qa | grep -q podman || (echo "podman not installed!" ; exit 1)
@bh7cw
bh7cw / cosa
Created July 14, 2020 17:20
#!/usr/bin/env bash
rpm -qa | grep -q podman || (echo "podman not installed!" ; exit 1)
podman pull quay.io/coreos-assembler/coreos-assembler
mkdir -p fcos && cd fcos
cosa() {
env | grep COREOS_ASSEMBLER
@bh7cw
bh7cw / Ignition Partition File
Created July 17, 2020 20:07
Works on FCOS and RHCOS. "device: /dev/vda" depends on the device we are using, maybe vda, sda, xvda
variant: fcos
version: 1.1.0
passwd:
users:
- name: core
ssh_authorized_keys:
- ssh-rsa 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 jingzhan@localhost.localdomain
storage:
disks:
- device: /dev/vda
@bh7cw
bh7cw / autologin
Created July 20, 2020 21:11
{
"ignition": {
"version": "3.1.0"
},
"passwd": {
"users": [
{
"name": "core",
"sshAuthorizedKeys": [
"ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCRvfOoVVuVw0+Pjv2wMYhr0h2J9LAc2ptz9ghsZXe1beTgYeJrH3ZezEdXLxZsAmgZAgwlf191K74idSJbM+8HhJAFPf5rQcB2EZzwXtwANCMGVnezavtJJlwZsr8+l9Y2xfKQ9bBwuoAQ6Rsp6Llav+QblI2rxYeNOv/4+jNcziwWjDWtsGNor/pcV6lIy6XCRzdgu8Mk9a1Z7itwH/WyNJE2mqEIljch4H5AjZbMA++9jb5jwYjg1RN5Tlmt+/GWgDn5TvQZKMtTt9mlkeE972E8vym9o1R8IQGoixKGuBmDuNEPUZ+b+wSc8+iZU8MIi3pNt6KNm25lJab9iuAB"
@bh7cw
bh7cw / test manifest by overriding the image
Last active July 28, 2020 04:00
[jingzhan@jing cluster_0715]$ OPENSHIFT_INSTALL_OS_IMAGE_OVERRIDE=ami-0b7dd156ccbd25423 ./openshift-install create manifests
? SSH Public Key /home/jingzhan/.ssh/cluster-0715.pub
? Platform aws
INFO Credentials loaded from the "default" profile in file "/home/jingzhan/.aws/credentials"
? Region us-east-2
? Base Domain devcluster.openshift.com
? Cluster Name cluster-bh7cw-727-06
? Pull Secret [? for help] ***************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************
@bh7cw
bh7cw / 99_openshift-machineconfig_99-master-ssh.yaml
Last active August 21, 2020 17:32
create from zero, works /var on master node
apiVersion: machineconfiguration.openshift.io/v1
kind: MachineConfig
metadata:
labels:
machineconfiguration.openshift.io/role: master
name: 99-master-ssh
spec:
config:
ignition:
version: 3.1.0