This commit adds configuration files ingested an Hydra instance to
create a declarative project.
Currently, this Hydra instance builds
- the master branch
- all pull requests
We use the nix community provided Hydra instance
https://hydra.nix-community.org/project/simple-nixos-mailserver.
Before using Niv, we were following channels meaning we can not
reproduce CI jobs easily.
In this change, we use Niv to pin these dependencies. We are also
addding a tests/default.nix to be able to run these tests locally.
For instance, to run the test extern.nix on the nixpkgs-19.09 release:
nix-build tests/default.nix -A extern.nixpkgs_19_09
Fixes#178
The dh.pem file is currently created by the postfix prestart
script. If the entropy of the system is to low, the postfix prestart
can timeout. In this case, an empty file is created.
If the user restarts the postfix service, the dh.pem is not created
because the file already exists (but is empty).
When a ssl is established with dovecot, it fails with this message:
imap-login: `Error:Failed to initialize SSL server context: Couldn't parse DH parameters:
error:0906D06C:PEM routines:PEM_read_bio:no start line: Expecting: DH
PARAMETERS`
With this patch, the postfix service creates the dh.pem if the dh.pem
doesn't exist or if it is empty. It doesn't fix the entropy or
timeout issue but at least, the user knows something is failing:/
Antoine Eiche