ACR Task from a Remote context

ACR Tasks can be created or run from a remote context. The context can be a zipped tar archive. The task runtime downloads the context and will execute the task file or the build.

az acr run -f mytask.yaml https://example.com/context.tar.gz

Creating and uploading the context

1. Create a tar and upload the repo to an azure blob
2. Generate a SAS URL for the blob
3. Schedule a run with the SAS URL as the remote context

Upload the context

The script below uploads the current folder as a tar.gz.

1. Tar the contents of this directory
2. Create a Azure storage container and obtain the connections string for a storage account
3. Uploads the blob

STORAGE_ACCOUNT=
CONTAINER_NAME=context
CONTENT_FILE=content.tar.gz
tar  --exclude='./.git' --exclude "./.DS_Store" -czvf  ./content.tar.gz .
STORAGE_CONNECTION_STRING=$(az storage account show-connection-string -n $STORAGE_ACCOUNT -o tsv)
az storage container create -n context  --connection-string $STORAGE_CONNECTION_STRING
az storage blob upload -c context -f $CONTENT_FILE -n $CONTENT_FILE --connection-string $STORAGE_CONNECTION_STRING

Generate SAS URL from the context

The below helper script is to generate a SAS URL for for the uploaded context. The SAS URL has an expiration of 1 day. This SAS URL is used to run the task on the configured Azure Container Registry.

STORAGE_ACCOUNT=
CONTAINER_NAME=context
CONTENT_FILE=content.tar.gz
URL=$(az storage account show -n $STORAGE_ACCOUNT --query "primaryEndpoints.blob" -o tsv)$CONTAINER_NAME/$CONTENT_FILE?
STORAGE_CONNECTION_STRING=$(az storage account show-connection-string -n $STORAGE_ACCOUNT -o tsv)
SAS_TTL=$(date -v "+1d" -u +%FT%TZ)
SAS_TOKEN=$(az storage blob generate-sas -c $CONTAINER_NAME -n $CONTENT_FILE --permissions r --expiry $SAS_TTL --connection-string $STORAGE_CONNECTION_STRING -o tsv)
SAS_URL="$URL$SAS_TOKEN"
#curl -o ./download-context.tar.gz "$SAS_URL"

RUN ACR Task from a remote context

Ensure you have run az configure --defaults acr=<REGISTRY>

az acr run -f acr-task.yaml "$SAS_URL"