(I am working with CentOS 7)
Requirements:
- unzip
- wget
Installing Packer
Move to /usr/local/bin, download and unpack packer.
cd /usr/local/bin/
wget https://releases.hashicorp.com/packer/1.2.5/packer_1.2.5_linux_amd64.zip
unzip packer_1.2.5_linux_amd64.zip
rm -f packer_1.2.5_linux_amd64.zip
cd
packer --version
Now you can start creating a template.