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Installing Packer by script on Linux

The installation script for a Linux machine is as follows:

PACKER_VERSION="1.4.3" #Update with your desired version

curl -Os https://releases.hashicorp.com/packer/${PACKER_VERSION}/packer_${PACKER_VERSION}_linux_amd64.zip \
&& curl -Os https://releases.hashicorp.com/packer/${PACKER_VERSION}/packer_${PACKER_VERSION}_SHA256SUMS \
&& curl https://keybase.io/hashicorp/pgp_keys.asc | gpg --import \
&& curl -Os https://releases.hashicorp.com/packer/${PACKER_VERSION}/packer_${PACKER_VERSION}_SHA256SUMS.sig \
&& gpg --verify packer_${PACKER_VERSION}_SHA256SUMS.sig packer_${PACKER_VERSION}_SHA256SUMS \
&& shasum -a 256 -c packer_${PACKER_VERSION}_SHA256SUMS 2>&1 | grep "${PACKER_VERSION}_linux_amd64.zip:\sOK" \
&& unzip -o packer_${PACKER_VERSION}_linux_amd64.zip -d /usr/local/bin

The code of this script is also available here: https://github.com/PacktPublishing/Learning_DevOps/blob/master/CHAP04/install_packer.sh.

This script performs the following actions:

Download the Packer version 1.4.0 package and check the checksum.
Unzip and copy the package into a local directory, /usr/local/bin (by default, this folder is in the PATH environment variable).

The following is a screenshot of the execution of the script for installing Packer on Linux: