Renames and readmes

* Add readme for cloud templates
* Modify readme for repo in general
* Change Rocky-X-OCP to be a base variant
This commit is contained in:
Louis Abel 2023-04-12 23:48:02 -07:00
parent 9f18a95d63
commit 51989ace15
Signed by untrusted user: label
GPG Key ID: B37E62D143879B36
4 changed files with 400 additions and 4 deletions

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@ -8,13 +8,21 @@ mirrors.
In the root of the repository are the general kickstarts in use that any
user can pick up, use, or modify to their liking to make their own Rocky
Linux live images. For those who are curious, in the `live` directory are
the split parts that make the live kickstarts what they are, which you can
use `ksflatten` on if you so choose.
Linux live images, cloud images, and so on. These kickstarts are generated
by templates that live in the various directories in this repository.
* `cloud` -> Cloud image templates
* `live` -> Live image templates
* `container` -> Container image templates
These kickstarts are generated using `ksflatten`. Changes made to the
kickstarts generally match between the templates and the full kickstarts
in the root.
For SIG/Core's usage, we use the `live` area as a "working" directory,
where we use the split parts in our automation for the images and the
pre-flattened versions are there for the convenience of all users.
pre-flattened versions are there for the convenience of all users. This
is easier than using the pre-made ones in empanadas.
## Building Live Images

49
cloud/README.md Normal file
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@ -0,0 +1,49 @@
# Cloud Templates
This directory contains templated versions of the cloud images. This is
extremely useful for us to be able to create more variants or modify
all variants at once if need be.
The general guidelines/ideas work like this:
* Start with a basic name, such as `rocky-${provider}-${variant}.ks`
* Optionally create additional kickstarts, such as an additional packages file
* Include the very base as necessary:
* rocky-cloud-base.ks
* rocky-cloud-parts-base.ks or rocky-cloud-parts-lvm.ks
* Include other customizations from another kickstart as necessary, such as an additional packages kickstart
* bootloader configuration and then final %post ... %end section
The most basic example of our most basic generic cloud image goes like this. See comments for details.
```
# rocky-genclo-base.ks
# Imports the absolute base for the cloud images. This is general setup settings.
%include rocky-cloud-base.ks
# Imports partition scheme and creation for the image. This is non-LVM.
%include rocky-cloud-parts-base.ks
# Imports base packages that all cloud images are expected to have
%include rocky-cloud-base-packages.ks
# bootloader information, each cloud will have different settings, so better we put it here.
bootloader --append="console=ttyS0,115200n8 no_timer_check crashkernel=auto net.ifnames=0" --location=mbr --timeout=1
# Anything else can go here that isn't fulfilled by custom or base templates.
# This can be repos if needed.
# the final post section is done here (we've removed all of it for the sake of the example)
%post --erroronfail
. . .
%end
```
At the end, you would run run ksflatten, and you now have a customized kickstart.
```
ksflatten -c rocky-genclo-base.ks -o Rocky-X-GenericCloud-Base.ks
```

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cloud/rocky-ocp-base.ks Normal file
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%include rocky-cloud-base.ks
%include rocky-cloud-parts-lvm.ks
%include rocky-cloud-ocp-packages.ks
repo --name "sig-cloud-common" --baseurl=http://dl.rockylinux.org/stg/sig/9/cloud/$basearch/cloud-common/ --includepkgs="oci-utils,python3-circuitbreaker,python3-daemon,python3-sdnotify,python39-oci-sdk" --cost=100
repo --name "extras" --baseurl=http://dl.rockylinux.org/stg/rocky/9/extras/$basearch/os/
repo --name=epel --cost=200 --baseurl=https://dl.fedoraproject.org/pub/epel/9/Everything/$basearch/
bootloader --append="console=ttyS0,115200n8 console=tty0 no_timer_check crashkernel=auto net.ifnames=0 LANG=en_US.UTF-8 transparent_hugepage=never rd.luks=0 rd.md=0 rd.dm=0 rd.lvm.vg=rocky rd.lvm.lv=rocky/root rd.net.timeout.dhcp=10" --location=mbr --timeout=1 --boot-drive=vda
%post --erroronfail
# Attempting to force legacy BIOS boot if we boot from UEFI
if [ "$(arch)" = "x86_64" ]; then
dnf install grub2-pc-modules grub2-pc -y
grub2-install --target=i386-pc /dev/vda
fi
# Ensure that the pmbr_boot flag is off
parted /dev/vda disk_set pmbr_boot off
# setup systemd to boot to the right runlevel
rm -f /etc/systemd/system/default.target
ln -s /lib/systemd/system/multi-user.target /etc/systemd/system/default.target
echo .
dnf -C -y remove linux-firmware
# Remove firewalld; it is required to be present for install/image building.
# but we dont ship it in cloud
dnf -C -y remove firewalld --setopt="clean_requirements_on_remove=1"
dnf -C -y remove avahi\*
sed -i '/^#NAutoVTs=.*/ a\
NAutoVTs=0' /etc/systemd/logind.conf
cat > /etc/sysconfig/network << EOF
NETWORKING=yes
NOZEROCONF=yes
EOF
# Remove build-time resolvers to fix #16948
echo > /etc/resolv.conf
# For cloud images, 'eth0' _is_ the predictable device name, since
# we don't want to be tied to specific virtual (!) hardware
rm -f /etc/udev/rules.d/70*
ln -s /dev/null /etc/udev/rules.d/80-net-name-slot.rules
# simple eth0 config, again not hard-coded to the build hardware
cat > /etc/sysconfig/network-scripts/ifcfg-eth0 << EOF
DEVICE="eth0"
BOOTPROTO="dhcp"
ONBOOT="yes"
TYPE="Ethernet"
USERCTL="yes"
PEERDNS="yes"
IPV6INIT="no"
PERSISTENT_DHCLIENT="1"
EOF
echo "virtual-guest" > /etc/tuned/active_profile
# generic localhost names
cat > /etc/hosts << EOF
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
EOF
echo .
systemctl mask tmp.mount
cat <<EOL > /etc/sysconfig/kernel
# UPDATEDEFAULT specifies if new-kernel-pkg should make
# new kernels the default
UPDATEDEFAULT=yes
# DEFAULTKERNEL specifies the default kernel package type
DEFAULTKERNEL=kernel
EOL
# make sure firstboot doesn't start
echo "RUN_FIRSTBOOT=NO" > /etc/sysconfig/firstboot
# rocky cloud user
sed -i '1i # Modified for cloud image' /etc/cloud/cloud.cfg
echo -e 'rocky\tALL=(ALL)\tNOPASSWD: ALL' >> /etc/sudoers
sed -i 's/name: cloud-user/name: rocky/g' /etc/cloud/cloud.cfg
# disable cloud kernel repo as it's not needed
sed -i 's/enabled=1/enabled=0/' /etc/yum.repos.d/Rocky-SIG-Cloud-Kernel.repo
dnf clean all
# XXX instance type markers - MUST match Rocky Infra expectation
echo 'oci' > /etc/yum/vars/infra
# change dhcp client retry/timeouts to resolve #6866
cat >> /etc/dhcp/dhclient.conf << EOF
timeout 300;
retry 60;
EOF
# OCI - Import repo GPG key
cat <<EOF > /tmp/key
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EOF
rpm --import /tmp/key
rm -rf /var/log/yum.log
rm -rf "/var/lib/yum/*"
rm -rf /root/install.log
rm -rf /root/install.log.syslog
rm -rf /root/anaconda-ks.cfg
rm -rf /var/log/anaconda*
rm -f /var/lib/systemd/random-seed
cat /dev/null > /etc/machine-id
echo "Fixing SELinux contexts."
touch /var/log/cron
touch /var/log/boot.log
mkdir -p /var/cache/yum
/usr/sbin/fixfiles -R -a restore
# remove these for debugging
sed -i -e 's/ rhgb quiet//' /boot/grub/grub.conf
# enable resizing on copied AMIs
echo 'install_items+=" sgdisk "' > /etc/dracut.conf.d/sgdisk.conf
# OCI - Need iscsi as a dracut module
echo 'add_dracutmodules+=" iscsi "' > /etc/dracut.conf.d/iscsi.conf
# OCI - Virtio drivers
echo 'add_drivers+=" virtio virtio_blk virtio_net virtio_pci virtio_ring virtio_scsi virtio_console "' > /etc/dracut.conf.d/virtio.conf
# OCI - YOLO
mkdir -p /usr/lib/dracut/modules.d/95oci
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XC5uqUkjT7CZdgJ13gSdHbP+FcHebSNOr3VJFYSopGgXfWX1S21ZmgV109c3rYCuwzgxe6oJ+/Ts
xdkpbPR5oyhn15l+leR/kuw13L6BdeFAEgwehd3gn7fP372a+QdusBK9ilSYmniq9RTc1eU0MBKB
HnwI11P9n6x3/ycP3QsXme4E56VeoNr4g9GZt/az9zbLdrac//29p7f3tnn8wb9h2/dfchjdOf/D
OIns+f8j2Jz/+iD/4V8ARUWK5d4+rNCTzRkTojVCmDSEYXl/gjJdqrruJ8zNvOJ8CY0gXqt3NTg6
0vufjg5T8YXvVkeb+dkv3GKxWCwWi8VisVgsFovFYrFYLBaLxWL5jnwGdMMrBgAoAAA="
base64 -d <<<"$OCIDRACUT" | tar -xz
OCICLOUDCFG="IyBPQ0kgY2xvdWQtaW5pdCBjb25maWd1cmF0aW9uCmRhdGFzb3VyY2VfbGlzdDogWydPcmFjbGUn
LCAnT3BlblN0YWNrJ10KZGF0YXNvdXJjZToKICBPcGVuU3RhY2s6CiAgICBtZXRhZGF0YV91cmxz
OiBbJ2h0dHA6Ly8xNjkuMjU0LjE2OS4yNTQnXQogICAgdGltZW91dDogMTAKICAgIG1heF93YWl0
OiAyMAoKIyBzd2FwIGZpbGUKc3dhcDoKICAgZmlsZW5hbWU6IC8uc3dhcGZpbGUKICAgc2l6ZTog
ImF1dG8iCgpjbG91ZF9pbml0X21vZHVsZXM6CiMgT0NJOiBkaXNrX3NldHVwIGlzIGRpc2FibGVk
CiMtIGRpc2tfc2V0dXAKIC0gbWlncmF0b3IKIC0gYm9vdGNtZAogLSB3cml0ZS1maWxlcwojIE9D
STogVGhlIGdyb3dwYXJ0IG1vZHVsZSBpcyBkaXNhYmxlZCBieSBkZWZhdWx0LiBUbyBlbmFibGUg
YXV0b21hdGljIGJvb3Qgdm9sdW1lIHJlc2l6aW5nLCB1bmNvbW1lbnQKIyB0aGUgYmVsb3cgZW50
cnkgZm9yICctIGdyb3dwYXJ0JyBhbmQgcmVib290LiBBbGwgdGhlIGRlcGVuZGVudCBwYWNrYWdl
cyBmb3IgdGhlIGdyb3dwYXJ0CiMgbW9kdWxlIHRvIHdvcmsgc3VjaCBhcyBjbG91ZC11dGlscy1n
cm93cGFydCBhbmQgZ2Rpc2sgYXJlIGFscmVhZHkgaW5jbHVkZWQgaW4gdGhlIGltYWdlLgojLSBn
cm93cGFydAogLSByZXNpemVmcwojIE9DSTogc2V0X2hvc3RuYW1lLCB1cGRhdGVfaG9zdG5hbWUs
IHVwZGF0ZV9ldGNfaG9zdHMgYXJlIGRpc2FibGVkCiMtIHNldF9ob3N0bmFtZQojLSB1cGRhdGVf
aG9zdG5hbWUKIy0gdXBkYXRlX2V0Y19ob3N0cwogLSByc3lzbG9nCiAtIHVzZXJzLWdyb3Vwcwog
LSBzc2gKCmNsb3VkX2NvbmZpZ19tb2R1bGVzOgogLSBtb3VudHMKIC0gbG9jYWxlCiAtIHNldC1w
YXNzd29yZHMKIyBPQ0k6IHJoX3N1YnNjcmlwdGlvbiBpcyBkaXNhYmxlZAojLSByaF9zdWJzY3Jp
cHRpb24KIC0geXVtLWFkZC1yZXBvCiAtIHBhY2thZ2UtdXBkYXRlLXVwZ3JhZGUtaW5zdGFsbAog
LSB0aW1lem9uZQogLSBudHAKIC0gcHVwcGV0CiAtIGNoZWYKIC0gc2FsdC1taW5pb24KIC0gbWNv
bGxlY3RpdmUKIC0gZGlzYWJsZS1lYzItbWV0YWRhdGEKIC0gcnVuY21kCgpjbG91ZF9maW5hbF9t
b2R1bGVzOgogLSByaWdodHNjYWxlX3VzZXJkYXRhCiAtIHNjcmlwdHMtcGVyLW9uY2UKIC0gc2Ny
aXB0cy1wZXItYm9vdAogLSBzY3JpcHRzLXBlci1pbnN0YW5jZQogLSBzY3JpcHRzLXVzZXIKIC0g
c3NoLWF1dGhrZXktZmluZ2VycHJpbnRzCiAtIGtleXMtdG8tY29uc29sZQogLSBwaG9uZS1ob21l
CiAtIGZpbmFsLW1lc3NhZ2UKIyBPQ0k6IHBvd2VyLXN0YXRlLWNoYW5nZSBpcyBkaXNhYmxlZAoj
LSBwb3dlci1zdGF0ZS1jaGFuZ2UKCg=="
base64 -d <<<"$OCICLOUDCFG" >> /etc/cloud/cloud.cfg.d/99_oci.cfg
# Rerun dracut for the installed kernel (not the running kernel):
KERNEL_VERSION=$(rpm -q kernel --qf '%%{V}-%%{R}.%%{arch}\n')
dracut -f /boot/initramfs-$KERNEL_VERSION.img $KERNEL_VERSION
# OCI needs Iscsi
grubby --args="libiscsi.debug_libiscsi_eh=1 netroot=iscsi:169.254.0.2:::1:iqn.2015-02.oracle.boot:uefi ip=dhcp rd.iscsi.bypass rd.iscsi.param=node.session.timeo.replacement_timeout=6000" --update-kernel "/boot/vmlinuz-$KERNEL_VERSION"
passwd -d root
passwd -l root
# Copyright (C) 2020 Oracle Corp., Inc. All rights reserved.
# Licensed under the Universal Permissive License v 1.0 as shown at http://oss.oracle.com/licenses/upl
#
# /usr/lib/oci-linux-config/cloud/scripts/initramfs-mod/net.sh
#
echo "$(date) - OCI initramfs network modification script started."
# Symlink network config files where cloud-init >= 19.4 expects them
DRACUT_CFG=/run/initramfs/state/etc/sysconfig/network-scripts
CI_DIR=/run
if [ -d $DRACUT_CFG ]; then
FILE_COUNT=`ls $DRACUT_CFG | wc -l`
if [ $FILE_COUNT -eq 0 ]; then
# Create dummy file if dracut did not create network device config
dummycfg=$CI_DIR/net-dummy.conf
echo "DEVICE=\"dummy\"" > $dummycfg
echo "BOOTPROTO=dhcp" >> $dummycfg
echo "$(date) - Creating dummy config $dummycfg."
else
for dcfg in $DRACUT_CFG/*; do
filename=${dcfg##*/}
devname=${filename##ifcfg-}
cicfg=$CI_DIR/net-$devname.conf
if [ ! -e $cicfg ]; then
echo "$(date) - Creating symlink from $dcfg to $cicfg."
ln -s $dcfg $cicfg
fi
done
fi
fi
echo "$(date) - OCI initramfs network modification script done."
true
%end