I'm having a problem with Google Cloud Build where the docker build command doesn't seem to be accepting the build-arg option, even though this same command works as expected on local:
Dockerfile:
ARG ASSETS_ENV=development
RUN echo "ASSETS_ENV is ${ASSETS_ENV}"
Build Command:
docker build --build-arg="ASSETS_ENV=production" .
Result on local:
ASSETS_ENV is production
Result on Cloud Build:
ASSETS_ENV is development
Ok the fix was in the cloud build yaml config:
Before:
- name: 'gcr.io/cloud-builders/docker'
args: ['build', '--build-arg="ASSETS_ENV=production"', '.']
After:
- name: 'gcr.io/cloud-builders/docker'
entrypoint: 'bash'
args: ['-c', 'docker build --build-arg="ASSETS_ENV=production" .']
For anyone who defines their steps like this:
- name: 'gcr.io/cloud-builders/docker'
args:
- build
- foo
- bar
The comment from @nader-ghanbari worked for me:
- name: 'gcr.io/cloud-builders/docker'
args:
- build
- --build-arg
- TF2_BASE_IMAGE=${_TF2_BASE_IMAGE}