specific tag for deploy container image as per branch

[prashantpandeygit]

Fixes #283

Enabled branch specific container image tags for urunc-deploy, removed the hardcoded latest tag, with this it is easy to deploy and test with versions.

Changes

added images field so that override can be done on the tag,
script to get tag from the git state. (also, the tag remains :latest as default, making backward compatible)

Tests

getting the tag:

kustomize build on urunc-deploy (same for cleanup):

set the tag:

verifying through build:

[netlify]

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[prashantpandeygit]

@ananos @cmainas have a look please when you get a moment. thanks!

[cmainas]

Hello @prashantpandeygit ,

thank you for this PR. Unfortunately, these changes do not resolve correctly the referenced issue:

• There is no reason for a script to obtain the current tag/hash.
• We should also update the respective documentation to also include the necessary steps to specify the version of urunc-deploy to use.
• The changes do not resolve the first point of the issue

When we push a new commit to main, we should be able to calculate the commit hash of the current tip of main, and use this as the tag to the container image built and pushed using the automated action.