Heroku deployment failed of missing mariadb-config or MariaDB connector from remote DB - heroku

Question

Wanted to make run my Python Flask project via Heroku (it's the first time I am using it). The case is, that I connect to a remote MariaDB on a Ubuntu VM.
When I try to push from local git I get an error to be related to the MariaDB. Is there an idea how I can solve this problem?
× python setup.py egg_info did not run successfully.
│ exit code: 1
╰─> [19 lines of output]
/bin/sh: 1: mariadb_config: not found
Traceback (most recent call last):
File "<string>", line 2, in <module>
File "<pip-setuptools-caller>", line 34, in <module>
File "/tmp/pip-install-2j753bw3/mariadb_0c456c224d01457ab040c19f32e1f9ee/setup.py", line 26, in <module>
cfg = get_config(options)
File "/tmp/pip-install-2j753bw3/mariadb_0c456c224d01457ab040c19f32e1f9ee/mariadb_posix.py", line 63, in get_config
cc_version = mariadb_config(config_prg, "cc_version")
File "/tmp/pip-install-2j753bw3/mariadb_0c456c224d01457ab040c19f32e1f9ee/mariadb_posix.py", line 28, in mariadb_config
raise EnvironmentError(
OSError: mariadb_config not found.
This error typically indicates that MariaDB Connector/C, a dependency which must be preinstalled,
is not found.
If MariaDB Connector/C is not installed, see installation instructions
at: https://github.com/mariadb-corporation/mariadb-connector-c/wiki/install.md.
If MariaDB Connector/C is installed, either set the environment variable MARIADB_CONFIG or edit
the configuration file 'site.cfg' to set the 'mariadb_config' option to the file location of the
mariadb_config utility.
[end of output]

Answer 1

It looks like you need the mariadb_config utility at compile time. This is likely because whatever Python driver you are using requires it.
mariadb_config is available in the libmariadb-dev Ubuntu package. You'll need to install that using the Apt buildpack.
Add the buildpack:
heroku buildpacks:add --index 1 heroku-community/apt
That buildpack doesn't do dependency resolution, so you'll have to list all transitive dependencies.
Create a new file called Aptfile (no extension) that lists the dependencies you wish to install:
mysql-common
mariadb-common
libmariadb3
libmariadb-dev
Commit your Aptfile and redeploy.