generate_ova.sh script does not act as expected

[Enaraque]

Description

When running the generate_ova.sh script from a tag instead of a branch and without passing any parameters, we get the following error.

$ git clone https://github.com/wazuh/wazuh-virtual-machines && cd wazuh-virtual-machines/ova/ && git checkout v4.10.0-alpha2

$ ./generate_ova.sh
Building Wazuh OVA version 4.10.0
Branch HEAD not found in wazuh-installation-assistant repository
==> default: VM not created. Moving on...

This is because when this command is executed from a tag it will always return HEAD.

wazuh-virtual-machines/ova/generate_ova.sh

Lines 220 to 221 in 57bdc42

	if [ -z "${INSTALLATION_ASSISTANT_BRANCH}" ]; then
	INSTALLATION_ASSISTANT_BRANCH=$(git rev-parse --abbrev-ref HEAD)

$ git rev-parse --abbrev-ref HEAD
HEAD

So when we try to do git ls-remote with the following command, it does not find that branch:

git ls-remote ${REMOTE_TYPE} ${WAZUH_INSTALLATION_ASSISTANT_URL} ${INSTALLATION_ASSISTANT_BRANCH}

Related

• Adapt the OVA package generation guide documentation #95