/var/www/html/.ddev/.downloads/ doesn't appear in the web container when using mutagen

[joelpittet]

Is there an existing issue for this?

• I have searched the existing issues

Run a Diagnostic and Paste Link Here

 DDEV version     vHEAD-619a212
 architecture     arm64
 db               drud/ddev-dbserver-mariadb-10.4:v1.20.0
 dba              phpmyadmin:5
 ddev-ssh-agent   drud/ddev-ssh-agent:v1.20.0
 docker           20.10.11
 docker-compose   v2.10.1
 docker-platform  colima
 mutagen          0.15.1
 os               darwin
 router           drud/ddev-router:v1.20.0
 web              drud/ddev-webserver:20220826_path_adjusted_for_composer_root

Expected Behavior

With mutagen and using this pull command

db_pull_command:
  command: |
    set -x   # You can enable bash debugging output by uncommenting
    set -eu -o pipefail
    # This just refreshes stale NFS if possible
    ls /var/www/html/.ddev >/dev/null
    cd /var/www/html
    drush -n @self.prod sql:dump > .ddev/.downloads/db.sql
    # DDEV expects db.sql.gz to import.
    gzip .ddev/.downloads/db.sql
  service: web

Which should work (has worked) as documented in the providers README.md:

db_pull_command: A script that determines how ddev should pull a database. It's job is to create a gzipped database dump in /var/www/html/.ddev/.downloads/db.sql.gz.

I expect the /var/www/html/.ddev/.downloads to be available in the web container to store database dump files, yet it's not. It is on the host machine.

Actual Behavior

Seems that it is ignored from /var/www/html/.ddev because of mutagen.

Resulting error is

bash: line 6: .ddev/.downloads/db.sql: No such file or directory

Steps To Reproduce

No response

Anything else?

@rfay pointed out that it's available /mnt/ddev_config as a workaround.

[rfay]

BTW @joelpittet you can just remove .downloads from the mutagen.yml and take it over (remove #ddev-generated from the top) to resolve this for yourself. I think that's what we should likely do to resolve this issue.

[joelpittet]

@rfay changing to /mnt/ddev_config yields:
bash: line 4: .downloads/db.sql: Read-only file system

[joelpittet]

Part of this PR #4109
This commit:
12ec25d