Allow environment file to load variables

[enboig]

I am using it to backup mainly selfhosted docker images. If the container is running, I make a database dump, with password in config file.

Could be possible to specify a .env file (.env, .env.local, conf/.env, ...) to load variables, so they could be used in command_dumps or hooks?

(I checked documentation and couldn't find it)

[m3nu]

Already possible to expand env vars:

https://vykar.borgbase.com/configuration#environment-variable-expansion

[enboig]

I read that; I haven't expressed myself correctly. I have:

 .db.env
docker-compose.yml
.env
mariadb
files
vykar.yaml

Where .db.env contains dabase credentials, I want to use them in vykar.yaml:

    command_dumps:
      - name: fireflyiii
        command: " docker exec firefly_iii_db mariadb-dump -u '${DB_USER}' -p'${DB_PASSWORD}' '${DB_DATABASE}'"

Could this be achieved?

[m3nu]

Yes, already possible. Been doing the same with Borgmatic for a long time. You need to load the env vars before running the command. This should work:

 eval $(cat .db.env) vykar

For Borgmatic I use this:

eval $(cat /etc/podd.env) ionice -c3 borgmatic

[enboig]

This isn't working in my server:

root@docker13:~/docker/fireflyiii# eval $(cat .env) vykar  #does nothing
root@docker13:~/docker/fireflyiii# eval $(cat .env) && vykar backup
Error: configuration error: invalid config 'vykar.yaml': environment variable 'DB_USERNAME' is not set at line 32, column 146

I expected something similar to docker-compose.yaml:

    env_file:
      - .db.env                              # Loads environment variables from .db.env file.

[m3nu]

No opposed to loading a .env file in the config. Let's look into that.

For the current case, the issue could be a missing export. If the .env file is simple KEY=value pairs (Docker-style, no export):

set -a; source .env; set +a; vykar backup

set -a makes every subsequent variable assignment automatically exported. set +a turns it off after. This is the cleanest approach for Docker-style .env files.

If the file already has export KEY=value:

source .env && vykar backup

[enboig]

I am missing export in my .env. If you are adding "env files" in config, I will wait for it.