From 51dece94abb3340912607a29e09ee08b2c03d14f Mon Sep 17 00:00:00 2001
From: Jarrod Johnson <jjohnson2@lenovo.com>
Date: Wed, 12 May 2021 18:13:55 -0400
Subject: [PATCH] Add draft for what will be genimage

Still very much prototype, but put it in github
to prepare to bring it together.
---
 .../diskless/build/dracut/add_root            | Bin 0 -> 16984 bytes
 .../diskless/build/dracut/install             |  36 ++++++++++++++++++
 .../diskless/build/dracut/installkernel       |  11 ++++++
 .../diskless/build/dracut/start_root          | Bin 0 -> 14464 bytes
 confluent_osdeploy/diskless/build/genimage    |  15 ++++++++
 confluent_osdeploy/diskless/build/pkglist     |   2 +
 6 files changed, 64 insertions(+)
 create mode 100755 confluent_osdeploy/diskless/build/dracut/add_root
 create mode 100644 confluent_osdeploy/diskless/build/dracut/install
 create mode 100644 confluent_osdeploy/diskless/build/dracut/installkernel
 create mode 100755 confluent_osdeploy/diskless/build/dracut/start_root
 create mode 100644 confluent_osdeploy/diskless/build/genimage
 create mode 100644 confluent_osdeploy/diskless/build/pkglist

diff --git a/confluent_osdeploy/diskless/build/dracut/add_root b/confluent_osdeploy/diskless/build/dracut/add_root
new file mode 100755
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diff --git a/confluent_osdeploy/diskless/build/dracut/install b/confluent_osdeploy/diskless/build/dracut/install
new file mode 100644
index 00000000..9799ff13
--- /dev/null
+++ b/confluent_osdeploy/diskless/build/dracut/install
@@ -0,0 +1,36 @@
+dracut_install /usr/bin/clevis-encrypt-tpm2 /usr/bin/clevis-decrypt-tpm2 /usr/bin/jose /usr/bin/mktemp
+dracut_install /lib64/libtss2-tcti-device.so.0
+dracut_install /usr/bin/tpm2_create /usr/bin/tpm2_pcrread /usr/bin/tpm2_createpolicy /usr/bin/tpm2_createprimary /usr/bin/tpm2_load /usr/bin/tpm2_unseal
+dracut_install curl openssl tar cpio gzip lsmod ethtool xz lsmod ethtool
+dracut_install modprobe touch echo cut wc bash netstat uniq grep ip hostname
+dracut_install awk egrep dirname expr sort
+dracut_install ssh sshd reboot parted mkfs mkfs.ext4 mkfs.xfs xfs_db mkswap
+dracut_install efibootmgr
+dracut_install du df ssh-keygen scp clear dhclient
+dracut_install /lib64/libnss_dns-2.28.so /lib64/libnss_dns.so.2
+dracut_install /usr/lib64/libnl-3.so.200
+dracut_install /etc/nsswitch.conf /etc/services /etc/protocols
+dracut_install chmod whoami head tail basename tr 
+inst /bin/bash /bin/sh
+dracut_install /lib64/libfuse.so.2 /lib64/libfuse.so.2.9.7
+dracut_install chown chroot dd expr kill parted rsync sort blockdev findfs insmod lvm
+dracut_install /usr/lib/udev/rules.d/10-dm.rules /usr/sbin/dmsetup /usr/lib/udev/rules.d/95-dm-notify.rules
+
+
+
+
+
+
+
+
+#this would be nfs with lock, but not needed, go nolock
+#dracut_install mount.nfs rpcbind rpc.statd /etc/netconfig sm-notify
+dracut_install mount.nfs  /etc/netconfig
+inst /usr/lib/dracut/modules.d/40network/net-lib.sh /lib/net-lib.sh
+
+
+
+# network mount, and disk imaging helpers can come from a second stage
+# this is narrowly focused on getting network up and fetching images
+# and those images may opt to do something with cloning or whatever
+
diff --git a/confluent_osdeploy/diskless/build/dracut/installkernel b/confluent_osdeploy/diskless/build/dracut/installkernel
new file mode 100644
index 00000000..c2e9cfdb
--- /dev/null
+++ b/confluent_osdeploy/diskless/build/dracut/installkernel
@@ -0,0 +1,11 @@
+#!/bin/bash
+instmods nfsv3 nfs_acl nfsv4 dns_resolver lockd fscache sunrpc
+instmods e1000 e1000e igb sfc mlx5_ib mlx5_core mlx4_en cxgb3 cxgb4 tg3 bnx2 bnx2x bna ixgb ixgbe qlge mptsas mpt2sas mpt3sas megaraid_sas ahci xhci-hcd sd_mod pmcraid be2net vfat ext3 ext4 usb_storage scsi_wait_scan ipmi_si ipmi_devintf qlcnic xfs
+instmods nvme
+instmods cdc_ether
+instmods mptctl
+instmods mlx4_ib mlx5_ub ib_umad ib_ipoib
+instmods i40e hfi1 bnxt_en qed qede
+instmods dm-mod dm-log raid0 raid1 raid10 raid456 dm-raid dm-thin-pool dm-crypt dm-snapshot linear dm-era
+# nfs root and optionally gocryptfs
+instmods fuse overlay squashfs loop
diff --git a/confluent_osdeploy/diskless/build/dracut/start_root b/confluent_osdeploy/diskless/build/dracut/start_root
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diff --git a/confluent_osdeploy/diskless/build/genimage b/confluent_osdeploy/diskless/build/genimage
new file mode 100644
index 00000000..0240aede
--- /dev/null
+++ b/confluent_osdeploy/diskless/build/genimage
@@ -0,0 +1,15 @@
+installroot=$1
+
+touch $installroot/.testcap
+if setcap cap_net_raw+p $installroot/.testcap >& /dev/null; then
+    capsargs=""
+else
+    capsargs="--setopt=tsflags=nocapps"
+fi
+rm $installroot/.testcap
+yum  $capsargs --releasever=8  --installroot=/var/tmp/testgenimage/ --releasever=8.3 install '@minimal-environment' chrony kernel net-tools nfs-utils openssh-server rsync tar util-linux python3 tar dracut dracut-network ethtool parted openssl dhclient openssh-clients bash vim-minimal rpm iputils shim-x64 grub2-efi-x64
+dracut -v --xz -N -m "stateless base terminfo" -f boot/initramfs-diskless 4.18.0-240.22.1.el8_3.x86_64
+# link kernel, initrd, grub, and shim as appropriate
+
+# use xz, minimize https burden and transfer penalty
+mksquashfs -comp xz
diff --git a/confluent_osdeploy/diskless/build/pkglist b/confluent_osdeploy/diskless/build/pkglist
new file mode 100644
index 00000000..25242303
--- /dev/null
+++ b/confluent_osdeploy/diskless/build/pkglist
@@ -0,0 +1,2 @@
+'@minimal-environment' chrony kernel net-tools nfs-utils openssh-server rsync tar util-linux python3 tar dracut dracut-network ethtool parted openssl dhclient openssh-clients bash vim-minimal rpm iputils clevis lvm2 efibootmgr shim-x64.x86_64 grub2-efi-x64 attr
+