The charm is not installable: 'sudo -u www-data /srv/app/venv/bin/python3 /srv/app/init.py' exit status 1.

[taurus-forever]

Hi,

The charm is not installable.

STR:

> juju deploy hello-juju
Located charm "hello-juju" in charm-hub, revision 8
Deploying "hello-juju" from charm-hub charm "hello-juju", revision 8 in channel stable on focal

Actual result:

Model     Controller  Cloud/Region         Version  SLA          Timestamp
default9  local       localhost/localhost  2.9.42   unsupported  18:36:11+02:00

App         Version  Status  Scale  Charm       Channel  Rev  Exposed  Message
hello-juju           error       1  hello-juju  stable     8  no       hook failed: "install"

Unit           Workload  Agent  Machine  Public address  Ports  Message
hello-juju/0*  error     idle   0        10.85.186.171          hook failed: "install"

Machine  State    Address        Inst id        Series  AZ  Message
0        started  10.85.186.171  juju-035d98-0  focal       Running

Debug log:

unit-hello-juju-0: 18:31:12 INFO unit.hello-juju/0.juju-log Running legacy hooks/install.
unit-hello-juju-0: 18:31:20 WARNING unit.hello-juju/0.install Traceback (most recent call last):
unit-hello-juju-0: 18:31:20 WARNING unit.hello-juju/0.install   File "/srv/app/init.py", line 3, in <module>
unit-hello-juju-0: 18:31:20 WARNING unit.hello-juju/0.install     hello_juju.db.create_all()
unit-hello-juju-0: 18:31:20 WARNING unit.hello-juju/0.install   File "/srv/app/venv/lib/python3.8/site-packages/flask_sqlalchemy/extension.py", line 884, in create_all
unit-hello-juju-0: 18:31:20 WARNING unit.hello-juju/0.install     self._call_for_binds(bind_key, "create_all")
unit-hello-juju-0: 18:31:20 WARNING unit.hello-juju/0.install   File "/srv/app/venv/lib/python3.8/site-packages/flask_sqlalchemy/extension.py", line 855, in _call_for_binds
unit-hello-juju-0: 18:31:20 WARNING unit.hello-juju/0.install     engine = self.engines[key]
unit-hello-juju-0: 18:31:20 WARNING unit.hello-juju/0.install   File "/srv/app/venv/lib/python3.8/site-packages/flask_sqlalchemy/extension.py", line 636, in engines
unit-hello-juju-0: 18:31:20 WARNING unit.hello-juju/0.install     app = current_app._get_current_object()  # type: ignore[attr-defined]
unit-hello-juju-0: 18:31:20 WARNING unit.hello-juju/0.install   File "/srv/app/venv/lib/python3.8/site-packages/werkzeug/local.py", line 513, in _get_current_object
unit-hello-juju-0: 18:31:20 WARNING unit.hello-juju/0.install     raise RuntimeError(unbound_message) from None
unit-hello-juju-0: 18:31:20 WARNING unit.hello-juju/0.install RuntimeError: Working outside of application context.
unit-hello-juju-0: 18:31:20 WARNING unit.hello-juju/0.install 
unit-hello-juju-0: 18:31:20 WARNING unit.hello-juju/0.install This typically means that you attempted to use functionality that needed
unit-hello-juju-0: 18:31:20 WARNING unit.hello-juju/0.install the current application. To solve this, set up an application context
unit-hello-juju-0: 18:31:20 WARNING unit.hello-juju/0.install with app.app_context(). See the documentation for more information.
unit-hello-juju-0: 18:31:20 ERROR unit.hello-juju/0.juju-log Uncaught exception while in charm code:
Traceback (most recent call last):
  File "./src/charm.py", line 229, in <module>
    main(HelloJujuCharm)
  File "/var/lib/juju/agents/unit-hello-juju-0/charm/venv/ops/main.py", line 404, in main
    framework.reemit()
  File "/var/lib/juju/agents/unit-hello-juju-0/charm/venv/ops/framework.py", line 732, in reemit
    self._reemit()
  File "/var/lib/juju/agents/unit-hello-juju-0/charm/venv/ops/framework.py", line 767, in _reemit
    custom_handler(event)
  File "./src/charm.py", line 64, in _on_install
    self._setup_application()
  File "./src/charm.py", line 165, in _setup_application
    self._create_database_tables()
  File "./src/charm.py", line 225, in _create_database_tables
    check_call(["sudo", "-u", "www-data", f"{VENV_ROOT}/bin/python3", f"{APP_PATH}/init.py"])
  File "/usr/lib/python3.8/subprocess.py", line 364, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['sudo', '-u', 'www-data', '/srv/app/venv/bin/python3', '/srv/app/init.py']' returned non-zero exit status 1.
unit-hello-juju-0: 18:31:21 ERROR juju.worker.uniter.operation hook "install" (via hook dispatching script: dispatch) failed: exit status 1

Env: juju 2.9.42, Ubuntu 22.04, lxd 5.0.2-838e1b2.