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[Build] Ubuntu: disable snap refresh during AMI build to prevent back… #7152

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gmarciani wants to merge 1 commit into from
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[Build] Ubuntu: disable snap refresh during AMI build to prevent back… #7152

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21 changes: 21 additions & 0 deletions cli/src/pcluster/resources/imagebuilder/parallelcluster.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -34,6 +34,21 @@ phases:
*) echo "Unsupported OS: $RELEASE" && exit {{ FailExitCode }} ;;
esac

# Disable snap refresh to prevent background updates during build (Ubuntu only)
- name: DisableSnapRefresh
action: ExecuteBash
inputs:
commands:
- |
set -x
OS="{{ build.OperatingSystemName.outputs.stdout }}"
if [[ $OS =~ ^ubuntu ]]; then
# Wait for any in-progress snap operations to complete, then stop and disable
snap watch --last=auto-refresh 2>/dev/null || true
systemctl stop snapd.refresh.timer
systemctl disable snapd.refresh.timer
fi

# Initialize system information and URLs
- name: SystemInfo
action: ExecuteBash
Expand Down Expand Up @@ -260,6 +275,12 @@ phases:
echo "SSM agent is installed by default"
fi

# Re-enable snap refresh timer (Ubuntu only)
if [[ $OS =~ ^ubuntu ]]; then
systemctl enable snapd.refresh.timer
systemctl start snapd.refresh.timer
fi

# Final cleanup
rm -f /opt/parallelcluster/system_info
/usr/local/sbin/ami_cleanup.sh "${CfnParamIsOfficialAmiBuild}"
Expand Down
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