Configure promtail/loki to collect logs files from cold storage (azure storage account)

Following your advice here, I was also able to collect the logs from azure storage accounts using persistent volumes mounted to another promtail instance /var/log directory.

I used this config:

scrape_configs:
- job_name: system
  static_configs:
    - targets:
        - localhost
      labels:
              job: varlog
              __path__: /var/log/**/*.log

Also elaboraetd more on this [here] (Ingesting logs from Azure Blob Storage to Loki - Stack Overflow)