75 lines
2.9 KiB
Markdown
75 lines
2.9 KiB
Markdown
# infra-rebuild
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infra-rebuild mirrors nixos-rebuild closely in its command-line interface, but focuses on making infrastructure deployment more convenient. It is built for infrastructure defined in a flake, where each hosts configuration is represented by a different `nixosConfiguration` in the flakes output.
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For building the configuration of e.g. two hosts called `web-01` and `git` one can simply run:
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```
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infra-rebuild build web-01 git
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```
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For deploying the hosts - using the switch operation - it's as simple as:
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```
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infra-rebuild switch web-01 git
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```
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Here infra-rebuild will simply run `nixos-rebuild switch` with the `target-host` option set for each host.
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Because infra-rebuild tries to be usable without any configuration, by default it queries the hosts FQDN from its `nixosConfiguration` and uses that for the target host.
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However to override aspects of the target host for specific or all hosts, infra-rebuild also accepts a `deployment_configuration.json` as configuration.
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## Configuration
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infra-rebuild accepts optional configuration in a `deployment_configuration.json`. \
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The following keys are available to be set for configuring various aspects of deployment for specific or all hosts:
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- `default.targetPort`: A default port to use for connecting to all host.
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- `default.targetUser`: A default user to use for connecting to all host.
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- `hosts.<host>.targetPort`: The port to use for connecting to `<host>`.
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- `hosts.<host>.targetUser`: The user to use for connecting to `<host>`.
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- `hosts.<host>.targetHostname`: The hostname to use for connecting to `<host>`.
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### Example
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An example `deployment_configuration.json` might look like this then:
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```json
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{
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"default": {
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"targetPort": 2222,
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"targetUser": "deploy"
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},
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"hosts": {
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"web-01": {
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"targetUser": "web-deploy",
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"targetHostname": "web-01-intern.infra.example",
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"targetPort": 22
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}
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},
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"git": {
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"targetUser": "git-deploy"
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}
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}
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```
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### Order of Precedence
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The order of precedence from least to greatest for `targetPort` and `targetUser` is the following:
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1. system default
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2. `default.targetPort/User`
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3. `hosts.<host>.targetPort/User`
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The order of precedence from least to greatest for `targetHostname` is the following:
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1. FQDN from hosts nixosConfiguration
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2. `hosts.<host>.targetHostname`
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## License
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This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>.
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