Maybe this is a little bit off-topic. I would like to ask how you manage your dockerfile.
I have a git repo hosting my configurations (docker-compose, traefik, etc). Then, I have a python script that reads data from JSON, renders the placeholder inside these files (the {{replace_me}}
) by an actual value and outputs them to another directory. Finally, I cd
to that directory and run docker-compose up -f ...
. (This approach takes inspiration from the terraform
templatefile
)
That JSON file is generated by some terraform code, along with terraform code for other stuffs (storage bucket, vps, dns, etc).
It works well for me so far. Especially for:
- templating
traefik toml
configuration (I like it a lot more than the label approach). - secret in the docker env file (so my docker.env file has the form of
secrect={{secret}}
.
I know most templating docker part can be replaced by directly interpolating with environment variables but I don’t really like it because it seems environment variables are not persistent.
Do you have any suggestions for my workflow ? I am always feel a litte bit off about this approach.
Yeah, maybe it can be used for that somehow.