From 710452d2e5c79a2f5a0d61eab19ec68324044057 Mon Sep 17 00:00:00 2001
From: Shrikumar Sharma <shrikumar.sharma@windriver.com>
Date: Fri, 4 Mar 2022 12:32:49 -0500
Subject: [PATCH] Install packages from platform backup if prestage iso is
 absent

When the %pre code in post_miniboot_controller.cfg kickstart is run,
it checks if a prestage iso is present; if one is not, then it
attempts to download from the systemcontroller. The solution is
to add /opt/platform-backup/<release-id> as a repo of higher
priority than download, but lesser than prestage-iso,
in the %pre section in post_miniboot_controller.cfg.

Test Plan

PASS: Verify that packages are retrieved from
      /opt/platform-backup/<release-id> if they have been prestaged

PASS: Verify that packages are downloaded from systemcontroller
      for installation if packages are not prestaged in
      /opt/platform-backup/<release-id>

Closes-Bug: 1963709
Change-Id: Ibd2fe8d555c47da16e181b03703374bfd73731e3
Signed-off-by: Shrikumar Sharma <shrikumar.sharma@windriver.com>
---
 .../kickstarts/post_miniboot_controller.cfg   | 35 +++++++++++++++----
 1 file changed, 29 insertions(+), 6 deletions(-)

diff --git a/bsp-files/kickstarts/post_miniboot_controller.cfg b/bsp-files/kickstarts/post_miniboot_controller.cfg
index fc2604da..fd94069d 100644
--- a/bsp-files/kickstarts/post_miniboot_controller.cfg
+++ b/bsp-files/kickstarts/post_miniboot_controller.cfg
@@ -10,6 +10,7 @@ BACKUP_DEVICE=/dev/disk/by-partlabel/${BACKUP_PART_LABEL}
 BACKUP_MOUNT=/mnt/${STAGING_DIR}
 BOOTIMAGE_ISO=""
 BOOTIMAGE_MOUNT=/mnt/bootimage
+PRESTAGE_DIR=${BACKUP_MOUNT}/${SW_VERSION}
 KS="Miniboot  pre:"
 
 wlog "${KS} local install check"
@@ -125,20 +126,42 @@ if [ "${iso_mount}" = false ] ; then
     wlog "${KS} Prestage ISO is not available"
 fi
 
+# Make sure the prestage directory exists, as well as the required subdirectories.
+exists_prestage=false
+if [ ! -e ${PRESTAGE_DIR} ] || [ ! -e ${PRESTAGE_DIR}/Packages ] || [ ! -e ${PRESTAGE_DIR}/repodata ]; then
+    exists_prestage=false
+else
+    exists_prestage=true
+fi
+
 #
 # This controls where the packages come from.
 # Lower cost has higher priority ; making local install preferred.
 #
 # If ${BOOTIMAGE_MOUNT} exists then install from local iso - Local Install
-# Otherwise, they are fetched from platform backup.
+# Otherwise, they are fetched from platform backup if the Packages have been 
+# prestaged.
 # If this fails, they are fetched from the System Controller - Remote Install
 #
-cat << EOF > /tmp/repo-include
-repo --name=local-base --cost=100 --baseurl=file://${BOOTIMAGE_MOUNT}/
-repo --name=local-updates --cost=100 --baseurl=file://${BOOTIMAGE_MOUNT}/patches/
-repo --name=remote-base --cost=200 --baseurl=xxxHTTP_URLxxx/
-repo --name=remote-updates --cost=200 --baseurl=xxxHTTP_URLxxx/patches/
+if [ "${exists_prestage}" = true ]; then
+    wlog "${KS} Prestage directory found: ${PRESTAGE_DIR}"
+    cat << EOF > /tmp/repo-include
+    repo --name=local-base --cost=100 --baseurl=file://${BOOTIMAGE_MOUNT}/
+    repo --name=local-updates --cost=100 --baseurl=file://${BOOTIMAGE_MOUNT}/patches/
+    repo --name=local-base --cost=200 --baseurl=file://${PRESTAGE_DIR}/
+    repo --name=local-updates --cost=200 --baseurl=file://${PRESTAGE_DIR}/patches/
+    repo --name=remote-base --cost=300 --baseurl=xxxHTTP_URLxxx/
+    repo --name=remote-updates --cost=300 --baseurl=xxxHTTP_URLxxx/patches/
 EOF
+else
+    wlog "${KS} Packages will either be retrieved from prestage iso or downloaded"
+    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/
+    repo --name=remote-base --cost=200 --baseurl=xxxHTTP_URLxxx/
+    repo --name=remote-updates --cost=200 --baseurl=xxxHTTP_URLxxx/patches/
+EOF
+fi
 %end
 
 # Repository arguments from %pre