eeva/krops
1
0
Fork 0
mirror of https://cgit.krebsco.de/krops synced 2024-11-23 03:29:48 +01:00
Code Issues Releases Wiki Activity

writeDeploy: add support for build hosts

Browse source 
This allows to evaluate & build the system on the dedicated build host,
from which the build artifacts are uploaded onto the target machine.
This commit is contained in:
Jörg Thalheim 2019-12-29 21:43:58 +00:00 committed by tv
parent fce5826802
commit 402c9cac25
2 changed files with 43 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

32
README.md
View file

@ -1,6 +1,6 @@
# krops (krebs ops)
krops is a lightweigt toolkit to deploy NixOS systems, remotely or locally.
krops is a lightweight toolkit to deploy NixOS systems, remotely or locally.
## Some Features
@ -56,7 +56,9 @@ and run `$(nix-build --no-out-link krops.nix)` to deploy the target machine.
Under the hood, this will make the sources available on the target machine
below `/var/src`, and execute `nixos-rebuild switch -I /var/src`.
## Deployment Target Attribute
## Deployment Attributes
### `target`
The `target` attribute to `writeDeploy` can either be a string or an attribute
set, specifying where to make the sources available, as well as where to run
@ -84,9 +86,31 @@ pkgs.krops.writeDeploy "deploy" {
};
}
```
For more details about the `target` attribute, please check the `mkTarget`
function in lib/default.nix.
function in [lib/default.nix](lib/defaults.nix).
### `backup` (optional, defaults to false)
Backup all paths specified in source before syncing new sources.
### `buildTarget` (optional)
If set the evaluation and build of the system will be executed on this host.
`buildTarget` takes the same arguments as target.
Sources will be synced to both `buildTarget` and `target`.
Built packages will be uploaded from the `buildTarget` to `target` directly
This requires the building machine to have ssh access to the target.
To build the system on the same machine, that runs the krops command,
set up a local ssh service and set the build host to localhost.
### `fast` (optional, defaults to false)
Run `nixos-rebuild switch` immediately without building the system
in a dedicated `nix build` step.
### `force` (optional, defaults to false)
Create the sentinel file (`/var/src/.populate`) before syncing the new source.
## Source Types

18
pkgs/krops/default.nix
View file

@ -47,21 +47,33 @@ in
writeDeploy = name: {
backup ? false,
buildTarget ? null,
fast ? false,
force ? false,
source,
target
}: let
buildTarget' =
if buildTarget == null
then target'
else lib.mkTarget buildTarget;
target' = lib.mkTarget target;
in
writeDash name ''
set -efu
${lib.optionalString (buildTarget' != target')
(populate { inherit backup force source; target = buildTarget'; })}
${populate { inherit backup force source; target = target'; }}
${lib.optionalString (! fast) ''
${rebuild ["dry-build"] target'}
${build target'}
${rebuild ["dry-build"] buildTarget'}
${build buildTarget'}
''}
${rebuild ["switch"] target'}
${rebuild ([
"switch"
] ++ lib.optionals (buildTarget' != target') [
"--build-host" "${buildTarget'.user}@${buildTarget'.host}"
"--target-host" "${target'.user}@${target'.host}"
]) buildTarget'}
'';
writeTest = name: {