--build-arg causes failed builds in Azure Container Registry

[rcarmo]

I have been trying to use --build-arg to inject Git hashes and build dates like I do in local builds, but whenever I try to use it it inevitably gives me an error in the build agent:

An image does not exist locally with the tag: acmedockerimages.azurecr.io/youtube-dl
"docker build" requires exactly 1 argument.
See 'docker build --help'.

Usage:  docker build [OPTIONS] PATH | URL | -

Build an image from a Dockerfile

Since the option is documented, I assume it works. So far I have tried:

local-build:
	docker build \
		--build-arg BUILD_DATE=$(BUILD_DATE) \
		--build-arg VCS_REF=$(VCS_REF) \
		-t $(LOCAL_IMAGE_NAME) .

cloud-build:
	az acr build \
		--registry $(REGISTRY_NAME) \
		--build-arg BUILD_DATE=$(BUILD_DATE) \
		--build-arg VCS_REF=$(VCS_REF) \
		--image $(CONTAINER_NAME) .

...and...

local-build:
	docker build \
		--build-arg BUILD_DATE=$(BUILD_DATE) \
		--build-arg VCS_REF=$(VCS_REF) \
		-t $(LOCAL_IMAGE_NAME) .

cloud-build:
	az acr build \
		--registry $(REGISTRY_NAME) \
		--build-arg "BUILD_DATE=$(BUILD_DATE)" \
		--build-arg "VCS_REF=$(VCS_REF)" \
		--image $(CONTAINER_NAME) .

but only this works:

cloud-build:
	az acr build \
		--registry $(REGISTRY_NAME) \
		--image $(CONTAINER_NAME) .

---

Document Details

⚠ Do not edit this section. It is required for docs.microsoft.com ➟ GitHub issue linking.

• ID: c608162e-cf40-9d53-da4a-51f51a0311ea
• Version Independent ID: eccbb543-be68-7de2-d41d-abee55c81452
• Content: az acr
• Content Source: src/command_modules/azure-cli-acr/azure/cli/command_modules/acr/_help.py
• Service: container-registry
• GitHub Login: @rloutlaw
• Microsoft Alias: routlaw

[jontreynes]

I am also coming across this issue:

az acr build --registry $ACR_NAME --build-arg BUILD_DATE=date -u +"%Y-%m-%dT%H:%M:%SZ" --build-arg VCS_REF=git rev-parse --short HEAD --build-arg IMAGE_TAG_REF=v1 --image test/node-web:v1 .

complains with
"docker build" requires exactly 1 argument.
See 'docker build --help'.

Usage: docker build [OPTIONS] PATH | URL | -

I can run the below, and it works fine:
docker build --build-arg BUILD_DATE=date -u +"%Y-%m-%dT%H:%M:%SZ" --build-arg VCS_REF=git rev-parse --short HEAD --build-arg IMAGE_TAG_REF=v1 --image test/node-web:v1 .

[ehotinger]

In general this issue is because of quotes. We interpret the command as if it were written directly to a shell. So if there's a space, or a special character like &, then the shell interprets that and decides how to split args. We have a related issue over at Azure/acr-builder#329 for possibly escaping these to make it easier. In general though you can fix all of these by doing something like foo='bar qux &'

[tjprescott]

Since this is a shell quoting issue, there is nothing that can be done from the CLI side as the shell interprets the command line before it reaches the CLI. Closing.

[rcarmo]

I would hesitate to close this without the appropriate notes in the docs to clarify the behaviour (and rationale for it).

[tjprescott]

I'll leave this to @ehotinger's discretion whether to take further action.