Support CentOS previous release in subcloud remote install

This commit introduces support for installing CentOS-based previous
release (21.12) in Debian.

There are two main components in this commit:
1. Handle the label change for the backup partition:

Platform Backup in 21.12 vs 'platform_backup' in Debian
This is accomplished by ignoring the label/partlabel entirely when
searching for an existing backup partition. Instead, the partition
GUID is used to locate the partition. The GUID does not change
between distributions.

2. Use pre-bundled CentOS kickstarts for subcloud installs in Debian

Since modifications are required to the CentOS kickstart files for the
above, we copy the relevant pre-bundled centos kickstarts (for miniboot
and prestaged ISO only) into a centos-specific directory under the
Debian /var/www/pages/feed/rel-${platform_release}/kickstart directory
structure, in order to be available for the gen-bootloader-iso-centos.sh
utility. These files are included in the platform-kickstarts .deb
package.

NOTES on how the pre-bundled files are created:
- We cannot use the files under bsp-file/kickstarts/*.cfg, since they
  are not valid for 21.12 release (e.g. they refer to /var/www)
- Instead, files were taken from a valid 21.12 release and manually
  merged with the pre-bundled files generated from this repo

GOING FORWARD:
Only the bundled files at kickstart/files/centos/*.cfg will be
maintained. At a later time, we may choose to remove the partial
kickstarts under bsp-files/kickstarts/*.cfg, since they are not used
anywhere.

Test Plan

PASS:
- Build full ISO, verify that the
  /var/www/pages/feed/rel-23.09/kickstart/centos directory is populated
  with the pre-bundled kickstart files
- Verify previous-release CentOS subcloud install/deployment under
  Debian (requires patched 22.12 load)
- Verify current-release subcloud install under Debian

Story: 2010611
Task: 48268

Signed-off-by: Kyle MacLeod <kyle.macleod@windriver.com>
Change-Id: I1b7f76212e222dea7c6e586e4e9492f8a86a955e

bsp-files/kickstarts/post_miniboot_controller.cfg

@@ -178,12 +178,13 @@ if [ -n "${BACKUP_DEVICE}" ] && [ -e "${BACKUP_DEVICE}" ]; then
             wlog "${KS} ${BACKUP_MOUNT} not mounted"
         fi
     else
-        wlog "${KS} mount of ${BACKUP_DEVICE} to ${BACKUP_MOUNT} failed rc:$rc"
+        wlog "${KS} mount of '${BACKUP_DEVICE}' to ${BACKUP_MOUNT} failed rc:$rc"
     fi
 else
-    wlog "${KS} backup device ${BACKUP_DEVICE} does not exist"
+    wlog "${KS} backup device '${BACKUP_DEVICE}' does not exist"
 fi
 
+wlog "${KS} iso_check: ${iso_check} iso_mount: ${iso_mount}"
 if [ "${iso_check}" = true -a "${iso_mount}" = true ] ; then
     wlog "${KS} Local Install ready"
 elif [ "${iso_mount}" = false ] ; then
@@ -192,7 +193,7 @@ fi
 
 # Make sure the prestage directory exists, as well as the required subdirectories.
 exists_prestage=false
-ilog "${KS} Checking prestaged content PRESTAGE_DIR: ${PRESTAGE_DIR}"
+wlog "${KS} Checking prestaged content PRESTAGE_DIR: ${PRESTAGE_DIR}"
 if [ ! -e ${PRESTAGE_DIR} ] || [ ! -e ${PRESTAGE_DIR}/Packages ] || [ ! -e ${PRESTAGE_DIR}/repodata ]; then
     exists_prestage=false
     wlog "${KS} Prestaged content not present"
@@ -229,15 +230,15 @@ fi
 # If this fails, they are fetched from the System Controller - Remote Install
 #
 if [ "${exists_prestage}" = true ]; then
-    wlog "${KS} Prestage directory found: ${PRESTAGE_DIR}"
+    wlog "${KS} Prestage directory found: ${PRESTAGE_DIR}. Proceeding with prestaged install."
     cat << EOF > /tmp/repo-include
     repo --name=local-base --cost=100 --baseurl=file://${PRESTAGE_DIR}/
     repo --name=local-updates --cost=100 --baseurl=file://${PRESTAGE_DIR}/patches/
     repo --name=remote-base --cost=200 --baseurl=xxxHTTP_URLxxx/
     repo --name=remote-updates --cost=200 --baseurl=xxxHTTP_URLxxx/patches/
 EOF
-elif [ "${iso_check}" = true -a "${iso_mount}" = true ] ; then
-    wlog "${KS} Packages will be retrieved from prestage iso"
+elif [ "${iso_check}" = true ] && [ "${iso_mount}" = true ] ; then
+    wlog "${KS} Packages will be retrieved from prestage ISO. Proceeding with local (ISO) install."
     cat << EOF > /tmp/repo-include
     repo --name=local-base --cost=100 --baseurl=file://${BOOTIMAGE_MOUNT}/
     repo --name=local-updates --cost=100 --baseurl=file://${BOOTIMAGE_MOUNT}/patches/
@@ -246,7 +247,7 @@ elif [ "${iso_check}" = true -a "${iso_mount}" = true ] ; then
 EOF
 else
     # Mirror remote software repositories
-    wlog "${KS} Staging Repo"
+    wlog "${KS} Staging Repo via ${feed_url}"
 
     # Check for inst.noverifyssl
     if grep -q inst.noverifyssl /proc/cmdline; then
@@ -317,6 +318,7 @@ else
     repo --name=remote-updates --cost=200 --baseurl=xxxHTTP_URLxxx/patches/
 EOF
 fi
+wlog "Using repo config:\n$(cat /tmp/repo-include)"
 %end
 
 # Repository arguments from %pre

bsp-files/kickstarts/post_prestaging.cfg

@@ -15,11 +15,11 @@ KS="Prestaging post:"
 # much in-service controller function setup stuff.
 #
 # Therefore, it is added here to ensure that if the prestaging
-# ISO's pre_disk_aio.cfg 'created' the 'Platform Backup'
+# ISO's pre_disk_aio.cfg 'created' the 'Platform Backup/platform_backup'
 # partition then it will get labeled for prestaging group.
 #
-# This prestaging kickstart file uses the 'label' to find the
-# 'Platform Backup' partition for its prestaging function.
+# This prestaging kickstart file uses the GUID to find the
+# platform backup partition for its prestaging function.
 #
 change_guid=/tmp/backup-guid-change.sh
 if [ -f "$change_guid" ]; then
@@ -50,8 +50,8 @@ wlog "${KS} install source : $SOURCE_DIR"
 
 export SW_VERSION=xxxPLATFORM_RELEASExxx
 export STAGING_DIR="platform-backup"
-export PRESTAGING_PART_LABEL=Platform\\x20Backup
-export PRESTAGING_DEVICE=/dev/disk/by-partlabel/${PRESTAGING_PART_LABEL}
+export BACKUP_PART_GUID="BA5EBA11-0000-1111-2222-000000000002"
+export BACKUP_DEVICE=
 export PRESTAGING_REPO_DIR="${SOURCE_DIR}/opt/${STAGING_DIR}"
 export PRESTAGING_LOCAL_DIR="/mnt/${STAGING_DIR}"
 
@@ -75,59 +75,54 @@ elif [ ! -d "${PRESTAGING_REPO_DIR}/${SW_VERSION}" ] ; then
     report_prestaging_failure_with_msg "${msg}"
 fi
 
-# Poll for the Platform Backup partition label.
-# TODO: Turn this into a function.
-found=false
+# Poll for the platform backup GUID
 for i in {1..6} ; do
-
-    files=$(ls /dev/disk/by-partlabel)
-    for file in $files ; do
-        if [ "$file" == "Platform\x20Backup" ] ; then
-            if [ ${i} -gt 1 ] ; then
-                wlog "${KS} prestaging partition label found in ${i} audit"
-            fi
-            found=true
+    # Search for a backup partition, using GUID (which appears lower case in the blkid output):
+    while read -r device_path; do
+        if [ "$(blkid -p "${device_path}" | grep -c -i "${BACKUP_PART_GUID}")" -gt 0 ]; then
+            BACKUP_DEVICE=${device_path}
+            wlog "Found backup device: ${BACKUP_DEVICE}"
             break
         fi
-    done
+    done <<<"$(lsblk --noheadings --list --path --output NAME)"
 
-    if [ "$found" = true ] ; then
+    if [ -n "${BACKUP_DEVICE}" ] ; then
         break
     else
-        wlog "${KS} searching for 'Platform\x20Backup' label ${i}"
+        wlog "${KS} searching for backup partition ${BACKUP_PART_GUID} GUID [${i}/6]"
         sleep 10
     fi
 done
 
-# if the label is not visable yet then we will see it in a mount failure
-if [ ! -d "${PRESTAGING_LOCAL_DIR}" ] ; then
-    wlog "${KS} mounting ${PRESTAGING_LOCAL_DIR}"
-    mkdir -p ${PRESTAGING_LOCAL_DIR}
-    mount ${PRESTAGING_DEVICE} ${PRESTAGING_LOCAL_DIR}
-    rc=$?
-    if [ $rc -eq 0 ] ; then
-        sleep 2
-        if [ ! -d "${PRESTAGING_LOCAL_DIR}" ] ; then
-            wlog "${KS} mount of staging '${PRESTAGING_LOCAL_DIR}' does not exist"
-            error=true
-        else
-            error=false
-        fi
-    else
-        wlog "${KS} mount of '${PRESTAGING_DEVICE}' to '${PRESTAGING_LOCAL_DIR}' failed rc:${rc}"
-        error=true
-    fi
-fi
-
-if [ "$error" = true ] ; then
-    msg="Unable to mount ${PRESTAGING_LOCAL_DIR}"
+if [ -z "${BACKUP_DEVICE}" ]; then
+    msg="Could not find backup device from GUID ${BACKUP_PART_GUID}"
     wlog "${KS} Prestaging failed: ${msg}"
     report_prestaging_failure_with_msg "${msg}"
 fi
 
+errmsg=
+if [ ! -d "${PRESTAGING_LOCAL_DIR}" ] ; then
+    wlog "${KS} mounting ${PRESTAGING_LOCAL_DIR}"
+    mkdir -p "${PRESTAGING_LOCAL_DIR}"
+    mount "${BACKUP_DEVICE}" "${PRESTAGING_LOCAL_DIR}"
+    rc=$?
+    if [ $rc -eq 0 ] ; then
+        sleep 2
+        if [ ! -d "${PRESTAGING_LOCAL_DIR}" ] ; then
+            errmsg="${KS} mount of staging '${PRESTAGING_LOCAL_DIR}' does not exist"
+        fi
+    else
+        errmsg="${KS} mount of '${BACKUP_DEVICE}' to '${PRESTAGING_LOCAL_DIR}' failed rc:${rc}"
+    fi
+fi
+if [ -n "$errmsg" ] ; then
+    wlog "${KS} Prestaging failed: ${errmsg}"
+    report_prestaging_failure_with_msg "${errmsg}"
+fi
+
 # nuke local prestaging dir - cleanup operation
 if [ -d ${PRESTAGING_LOCAL_DIR}/${SW_VERSION} ] ; then
-    wlog "${KS} wiping prestaging dir '${PRESTAGING_LOCAL_DIR}/${SW_VERSION}'"
+    wlog "${KS} cleanup; wiping existing prestaging dir '${PRESTAGING_LOCAL_DIR}/${SW_VERSION}'"
     rm -rf ${PRESTAGING_LOCAL_DIR}/${SW_VERSION}
 fi
 
@@ -138,8 +133,14 @@ mkdir ${PRESTAGING_LOCAL_DIR}/${SW_VERSION}
 cd ${PRESTAGING_LOCAL_DIR}/${SW_VERSION}
 
 # copy repo prestaging files to the local mount
-wlog "${KS} copy prestaging files"
-cp -a ${PRESTAGING_REPO_DIR}/${SW_VERSION} ${PRESTAGING_LOCAL_DIR}
+wlog "${KS} copy prestaging files: from '${PRESTAGING_REPO_DIR}/${SW_VERSION}' to '${PRESTAGING_LOCAL_DIR}'"
+cp -a "${PRESTAGING_REPO_DIR}/${SW_VERSION}" "${PRESTAGING_LOCAL_DIR}/"
+rc=$?
+if [ $rc -ne 0 ] ; then
+    msg="copy failed from '${PRESTAGING_REPO_DIR}/${SW_VERSION}' to '${PRESTAGING_LOCAL_DIR}/', rc=${rc}"
+    wlog "${KS} Prestaging Failed: ${msg}"
+    report_prestaging_failure_with_msg "${msg}"
+fi
 wlog "${KS} prestaging files copy done"
 
 # loop over all the prestaged files

bsp-files/kickstarts/pre_disk_setup_common.cfg

@@ -258,6 +258,7 @@ do
     # GPT partitions, they save partition info at the start and the end of the block.
     # Do this for each partition on the disk, as well.
     part_numbers=( $(parted -s $dev print | awk '$1 == "Number" {i=1; next}; i {print $1}') )
+    wlog "WIPE_HDD: checking dev: $dev, part_numbers: $part_numbers, rootfs_device: $rootfs_device, boot_device: $boot_device"
     for part_number in "${part_numbers[@]}"; do
         part=$dev$part_number
         case $part in
@@ -267,13 +268,16 @@ do
         esac
         sgdisk_part_info=$(sgdisk -i $part_number $dev)
         part_type_guid=$(echo "$sgdisk_part_info" | grep "$part_type_guid_str" | awk '{print $4;}')
-        if [ "$dev" == "$rootfs_device" ]; then
+        if [ "$dev" = "$rootfs_device" ] || [ "$dev" = "$boot_device" ]; then
+            wlog "Checking for backup partition: $part"
             part_fstype=$(exec_retry 5 0.5 "blkid -s TYPE -o value $part")
-            if [ "$part_type_guid" == $BACKUP_PART_GUID -a "${part_fstype}" == "ext4" ]; then
+            if [ "$part_type_guid" = "$BACKUP_PART_GUID" ] && [ "${part_fstype}" = "ext4" ]; then
                 wlog "Skipping wipe backup partition $part"
                 BACKUP_CREATED=1
                 continue
-           fi
+            else
+                wlog "Skipping part:$part_number $dev GUID: $part_type_guid"
+            fi
         fi
         wlog "Wiping partition $part"
         if [[ $WIPE_CEPH_OSDS == "true" && ( "$part_type_guid" == $CEPH_REGULAR_JOURNAL_GUID || "$part_type_guid" == $CEPH_MPATH_JOURNAL_GUID ) ]]; then

bsp-files/kickstarts/pre_prestaging_install_check.cfg

@@ -82,17 +82,17 @@ fi
 # it tries to reconfigure the partition in a later step. We delete the partition now so that
 # parted succeeds in the later step.
 
-partition_id=$(parted -s ${rootfs_device} print | awk '/Platform Backup/ { print $1; }')
+# The backup partition may be labeled 'Platform Backup' (centos) or 'platform_backup' (debian)
+partition_id=$(parted -s ${rootfs_device} print | awk '/(Platform Backup|platform_backup)/ { print $1; }')
 
-# if the partition id is not empty or zero, then the partition actually exists.
+# If the partition id is not empty or zero, then the partition actually exists.
 # Delete the partition.
-if [[ "${partition_id}" -ne '' && "${partition_id}" -ne "0" ]]; then
+if [ -n "${partition_id}" ] && [ "${partition_id}" -ne 0 ]; then
     wlog "Deleting platform backup at partition ${partition_id} on ${rootfs_device}"
 
     # Delete the platform backup partition
     parted -s ${rootfs_device} rm ${partition_id}
     rc=$?
-
     if [ "${rc}" -ne "0" ]; then
         wlog "Unable to delete platform backup at partition ${partition_id} on ${rootfs_device}: [exit code ${rc}]"
         exit -1

kickstart/debian/deb_folder/rules

@@ -14,6 +14,11 @@ override_dh_auto_configure:
 
 override_dh_install:
 	install -d -m 755 $(ROOT)/var/www/pages/feed/rel-${platform_release}/kickstart
+	install -d -m 755 $(ROOT)/var/www/pages/feed/rel-${platform_release}/kickstart/centos
 	install -p -D -m 700 kickstart.cfg $(ROOT)/var/www/pages/feed/rel-${platform_release}/kickstart
 	install -p -D -m 700 miniboot.cfg $(ROOT)/var/www/pages/feed/rel-${platform_release}/kickstart
+	install -p -D -m 700 centos/miniboot_controller_ks.cfg $(ROOT)/var/www/pages/feed/rel-${platform_release}/kickstart/centos
+	install -p -D -m 700 centos/miniboot_smallsystem_ks.cfg $(ROOT)/var/www/pages/feed/rel-${platform_release}/kickstart/centos
+	install -p -D -m 700 centos/miniboot_smallsystem_lowlatency_ks.cfg $(ROOT)/var/www/pages/feed/rel-${platform_release}/kickstart/centos
+	install -p -D -m 700 centos/prestaged_installer_ks.cfg $(ROOT)/var/www/pages/feed/rel-${platform_release}/kickstart/centos
 	dh_install