fix(install): fix packer version check in post install script.

[himanhsugusain]

This attempt to fix the packer version check , which on failing would trigger a new download even if the same packer version is correctly insatalled.

This is an issue where packer for the arch type does not exists ( 404 ), eg. vm, docker images etc.

--2024-11-12 07:45:06--  https://releases.hashicorp.com/packer/1.10.1/packer_1.10.1_linux_.zip
Resolving releases.hashicorp.com (releases.hashicorp.com)... 99.86.20.99, 99.86.20.59, 99.86.20.95, ...
Connecting to releases.hashicorp.com (releases.hashicorp.com)|99.86.20.99|:443... connected.
HTTP request sent, awaiting response... 404 Not Found
2024-11-12 07:45:07 ERROR 404: Not Found.

packer version output format

himanshu@ubuntu-vm:~$ /usr/bin/packer  --version
Packer v1.10.1

Your version of Packer is out of date! The latest version
is 1.11.2. You can update by downloading from www.packer.io/downloads

[jasonmcintosh]

LOOKS like this should do it, but don't have a great test for it right now ;) Still approving as these are only used in the debian installations.

[ashleykleynhans]

LOOKS like this should do it, but don't have a great test for it right now ;) Still approving as these are only used in the debian installations.

Confirmed that the previous code:

 if [ $packer_status -ne 0 ] || [ "$packer_version" != "$PACKER_VERSION" ]; then

Does NOT match the version correctly because $packer_version is Packer v1.10.1 but $PACKER_VERSION is 1.10.1.

But the new code:

if [ $packer_status -ne 0 ] || ! grep -q "$PACKER_VERSION" <<< "$packer_version" ; then

DOES match the partial version number of 1.10.1 within the $packer_version string of Packer v1.10.1,