feat(ui): add mustache templating in pod log url

[anantadwi13]

Description

There are so many cloud providers out there. This PR is used to add templating for pod log urls. Instead of relying only on Stackdriver logs (which is a Google product), we give our users the ability to create their own log urls. There are some variables that can be used by our users.

Image Builder Log

1. Available Variables

• cluster_name (string)
• namespace_name (string)
• job_name (string)
• start_time (string)
• end_time (string)

2. Usage

# merlin config.yaml

FeatureToggleConfig:
  LogConfig:
    LogImageBuilderURL: https://logviewer.sample.local/logs/viewer?cluster={{cluster_name}}&namespace={{namespace_name}}&job={{job_name}}

# it generates
# https://logviewer.sample.local/logs/viewer?cluster=caraml-cluster&namespace=caraml-namespace&job=job-caraml

Model Log

1. Available Variables

• cluster_name (string)
• namespace_name (string)
• pod_names (array of {value, is_first})
• start_time (string)

2. Usage

# merlin config.yaml

FeatureToggleConfig:
  LogConfig:
    LogModelURL: https://logviewer.sample.local/logs/viewer?cluster={{cluster_name}}&namespace={{namespace_name}}&pods={{#pod_names}}{{#is_first}}{{value}}{{/is_first}}{{^is_first}},{{value}}{{/is_first}}{{/pod_names}}

# it generates
# https://logviewer.sample.local/logs/viewer?cluster=caraml-cluster&namespace=caraml-namespace&pods=pod-1,pod-2,pod-3

Modifications

BE

• add LogImageBuilderURL and LogModelURL

FE

• add mustache templating
• change Stackdriver urls to custom log url with backward compatibility

Tests

Checklist

• Added PR label
• Added unit test, integration, and/or e2e tests
• Tested locally
• Updated documentation
• Update Swagger spec if the PR introduce API changes
• Regenerated Golang and Python client if the PR introduces API changes

Release Notes

[anantadwi13]

i'm going to update this pr to add backward compatibility to the stackdriver url

[deadlycoconuts]

Thanks a lot for this PR! Everything looks good 🚀 I just left one comment but that's all 😅