This script cleans up an Azure Container Registry (ACR) repository by deleting old images. It takes some inputs:
az_service_principal: The service principal name for the Azure account with access to the ACR registry.az_password: The password for the service principal.az_tenant: The tenant ID for the Azure account.acr_registry_name: The name of the acr registry.repo: The name of the repository from the above acr registry.
The script performs the following steps:
- Logs in to Azure using the service principal credentials.
- Fetches a list of all the repositories in the ACR registry.
- For each repository, gets a list of the first 7 images, sorted by date in descending order. (This number of images = 7 can be changed in the code).
- Gets a list of all the image tags in the repository.
- Compares the two lists to identify the image tags that are not in the top 7.
- Deletes the image tags that are not in the top 7.
Benefits of using the script:
- The script helps to keep your ACR registry clean and organized.
- It can help to reduce the storage costs associated with your ACR registry.
- The script can be automated to run on a regular basis, ensuring that your ACR registry is always clean.
How to use the script:
To use the script, you will need to create a new workflow in your GitHub repository. The workflow should have the following steps:
- Configure the main.yaml file as per your requirement to use the script with the github workflow.
- The bash script can be directly used from a linux machine as well ( without github actions )
Once you have created the workflow, push the changes to your repository. The workflow will be triggered and the script will be executed.