Hello 👋 ,

load_assets_from_dbt_project

, fails if

dbt deps

are not installed. When using Serverless with FAST_DEPLOYS, this is a big issue, since there's no way to install the deps using

dagster_cloud_post_install.sh

. Can you please add the argument

run_deps_command: bool

(or ``install_deps: bool``, or similar) to

load_assets_from_dbt_project

; when set to True, it would simply run a command like

run_command(["dbt", "deps", "--project-dir", DBT_PROJECT_DIR])

before running

dbt run

/

dbt build

(Disclaimer: not a dagster cloud user) why wouldn’t post install hooks work? According to docs, these are run after python deps (I.e. dbt) are installed, so the

dbt

command should be available. You really don’t want to run

dbt deps

every time before running dbt run/build - it will slow down execution and insert potential for runs of the same dagster build to be less deterministic.

It is because

dagster_cloud_post_install.sh

is not available for fast-deploys (hooks only work for slow-deploys)

Hi Félix, for fast deploys all local files from the GitHub workflow are deployed to cloud. Can you please try the following: modify

deploy.yml

to run

dbt deps

after the fast deploys checkout:

- name: Checkout
        if: env.ENABLE_FAST_DEPLOYS == 'true'
        uses: actions/checkout@v3
        with:
          ref: ${{ github.head_ref }}
          path: project-repo
          
      # Add these two lines:

      - run: "pip install dbt-core"
      - run: "dbt deps --project-dir $GITHUB_WORKSPACE/project-repo/dbt_project"

Hello @Shalabh Chaturvedi, thank you very much for the support! I tested and it works

Do you think it would make sense to put the 'run: "dbt deps ..." ' step after the python project installation step? (This way dbt would already be installed and would have the version that is pinned in setup.py)

Hi Félix, that's a good point regarding the version. When using fast deploys, the installation of dbt-core and other dependencies doesn't really happen until the code is deployed in our cloud. I will discuss the best way to do this with the team. I will also bring your suggestions about better docs (agree!) and automatic

deps

handling to the team discussion.

Thank you @Shalabh Chaturvedi