[Docs] Deploy YugabyteDB in Google Cloud Platform with GCP Deployment Manager

[yogendra]

Description

This is broken. It does not deploy the database and fails in downloading step.

Main cause of failure is usage/invocation of the install_script.sh

Line with issue - https://github.com/yugabyte/gcp-deployment-manager/blob/master/script/startup-script.sh#L11

This common_scripts/install_software.sh script expects a YB_RELEASE value, i.e. YB_VERSION+ '-b' (Example: 2.19.1.0-b10). The other script scripts/install_software.sh expects YB_VERSION and finds the latest corresponding YB_RELEASE using docker hub image tags

There are 3 options to resolve this:

1. Enhance or replace common_scripts/install_software.sh with scripts/install_software.sh. I would recommend this, as this script is referred in multiple automations (gcp deployment manager/terraform, aws cloud formation/terraform, etc.)
2. Replace usage of common_scripts/install_software.sh with scripts/install_software.sh
3. Replace parameter to be YB_RELEASE

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[yogendra]

Upon additional inspection here is what I have observed.

Working	Cloud	Method	Scripts	Parameter Value Format	Link
✅	AWS	TF	scripts/install_software.sh	YB_VERSION	link
✅	AWS	Cloud Formation	common_scripts/install_software.sh	YB_RELEASE	link
✅	GCP	TF	scripts/install_software.sh	YB_VERSION	link
🚫	GCP	DM	common_scripts/install_software.sh	YB_VERSION	link
✅	Azure	TF	scripts/install_software.sh	YB_VERSION	link
✅	Azure	ARM	common_scripts/install_software.sh	YB_RELEASE	link

[ddhodge]

@iSignal Not entirely a docs issue, who can TAL?