Wait up to 30 seconds for config drive

Handle Virtual Media ISO (sr0) appearing later

Issue: https://bugs.launchpad.net/ironic-python-agent-builder/+bug/2126068

Change-Id: I185f0955d86767784ea6b68c01ffc484c83c61ae
Signed-off-by: Mathieu Parent <math.parent@gmail.com>
(cherry picked from commit 9aca8fd38f)

dib/ironic-python-agent-ramdisk/static/etc/systemd/system/ironic-agent-resolve-config-drive.service

@@ -3,6 +3,8 @@ Description=Ironic agent config drive setup
 Wants=network-pre.target
 Before=network-pre.target
 After=local-fs.target
+Before=glean.service
+Before=system-glean.slice
 
 [Service]
 ExecStart=/bin/bash /usr/local/bin/ironic-python-agent-resolve-configdrive.sh

dib/ironic-python-agent-ramdisk/static/usr/local/bin/ironic-python-agent-resolve-configdrive.sh

@@ -10,19 +10,27 @@ PATH=/bin:/usr/bin:/sbin:/usr/sbin
 # Inspired by/based on glean-early.sh
 # https://opendev.org/opendev/glean/src/branch/master/glean/init/glean-early.sh
 
-# NOTE(TheJulia): We care about iso images, and would expect lower case as a
-# result. In the case of VFAT partitions, they would be upper case.
-CONFIG_DRIVE_LABEL="config-2"
-
-# Identify the number of devices
-device_count=$(lsblk -o PATH,LABEL | grep -c $CONFIG_DRIVE_LABEL || true)
-
 # Identify if we have an a publisher id set
 publisher_id=""
 if grep -q "ir_pub_id" /proc/cmdline; then
     publisher_id=$(cat /proc/cmdline | sed -e 's/^.*ir_pub_id=//' -e 's/ .*$//')
 fi
 
+# NOTE(TheJulia): We care about iso images, and would expect lower case as a
+# result. In the case of VFAT partitions, they would be upper case.
+CONFIG_DRIVE_LABEL="config-2"
+
+i=0
+while [ $i -lt 30 ] ; do
+    i=$((i + 1))
+
+    # Identify the number of devices
+    device_count=$(lsblk -o PATH,LABEL | grep -c $CONFIG_DRIVE_LABEL || true)
+
+    [ $device_count -lt 1 ] || break
+    sleep 1
+done
+
 if [ $device_count -lt 1 ]; then
     # Nothing to do here, exit!
     exit 0

releasenotes/notes/wait-config-drive-30s-3c51adba5fddc8a2.yaml

@@ -0,0 +1,4 @@
+---
+fixes:
+  - |
+    Wait config drive up to 30 seconds. This ensure that network data is available to Glean.