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talyztalyz
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ci: Add basic NixOS tests
1 parent 8e94a58 commit 8619df9

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Lines changed: 271 additions & 17 deletions

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‎.github/workflows/ci.yml‎

Lines changed: 20 additions & 8 deletions
Original file line numberDiff line numberDiff line change
@@ -4,16 +4,16 @@ jobs:
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nix_parsing:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v2
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- uses: cachix/install-nix-action@v12
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- uses: actions/checkout@v4
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- uses: cachix/install-nix-action@v31
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- name: Check Nix parsing
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run: |
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find . -name "*.nix" -exec nix-instantiate --parse --quiet {} >/dev/null +
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nix_formatting:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v2
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- uses: cachix/install-nix-action@v12
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- uses: actions/checkout@v4
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- uses: cachix/install-nix-action@v31
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with:
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nix_path: nixpkgs=channel:nixos-unstable
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- name: Check Nix formatting
@@ -22,8 +22,8 @@ jobs:
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shell_formatting:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v2
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- uses: cachix/install-nix-action@v12
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- uses: actions/checkout@v4
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- uses: cachix/install-nix-action@v31
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with:
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nix_path: nixpkgs=channel:nixos-unstable
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- name: Check shell script formatting
@@ -32,10 +32,22 @@ jobs:
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shell_error_checking:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v2
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- uses: cachix/install-nix-action@v12
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- uses: actions/checkout@v4
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- uses: cachix/install-nix-action@v31
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with:
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nix_path: nixpkgs=channel:nixos-unstable
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- name: Check for shell script errors
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run: |
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find . -name "*.*sh" -exec nix-shell -p shellcheck --run "shellcheck {}" \;
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tests:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v4
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- uses: cachix/install-nix-action@v31
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with:
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enable_kvm: true
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extra_nix_config: "system-features = nixos-test benchmark big-parallel kvm"
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github_access_token: ${{ secrets.GITHUB_TOKEN }}
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- name: Flake checks, NixOS tests
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run: |
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nix flake check -L

‎flake.lock‎

Lines changed: 48 additions & 0 deletions
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‎flake.nix‎

Lines changed: 203 additions & 9 deletions
Original file line numberDiff line numberDiff line change
@@ -1,13 +1,207 @@
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{
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outputs = { self }: {
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nixosModules.default = self.nixosModules.impermanence;
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nixosModules.impermanence = import ./nixos.nix;
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inputs = {
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nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
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home-manager.url = "github:nix-community/home-manager";
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home-manager.inputs.nixpkgs.follows = "nixpkgs";
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};
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6-
homeManagerModules.default = self.homeManagerModules.impermanence;
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homeManagerModules.impermanence = import ./home-manager.nix;
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outputs = { self, nixpkgs, home-manager }:
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let
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inherit (nixpkgs) lib;
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forAllSystems = lib.genAttrs lib.systems.flakeExposed;
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in
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{
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lib = import ./lib.nix { inherit lib; };
815

9-
# Deprecated
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nixosModule = self.nixosModules.impermanence;
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nixosModules.home-manager.impermanence = self.homeManagerModules.impermanence;
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};
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nixosModules.default = self.nixosModules.impermanence;
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nixosModules.impermanence = import ./nixos.nix;
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homeManagerModules.default = self.homeManagerModules.impermanence;
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homeManagerModules.impermanence = import ./home-manager.nix;
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# Deprecated
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nixosModule = self.nixosModules.impermanence;
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nixosModules.home-manager.impermanence = self.homeManagerModules.impermanence;
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devShells = forAllSystems
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(system:
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let
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pkgs = nixpkgs.legacyPackages.${system};
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in
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{
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default =
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pkgs.mkShell {
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packages = [
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pkgs.nixpkgs-fmt
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];
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};
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}
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);
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checks = forAllSystems
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(system:
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let
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pkgs = nixpkgs.legacyPackages.${system};
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mkTest = { name, configuration }:
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pkgs.nixosTest {
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inherit name;
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nodes = {
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persistence =
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{ config, ... }:
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{
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virtualisation.diskImage = "./persistent.qcow2";
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virtualisation.graphics = false;
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boot.initrd.verbose = true;
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imports = [
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self.nixosModule
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configuration
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];
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services.openssh.enable = true;
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users.users.bird = {
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isNormalUser = true;
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uid = 1000;
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};
68+
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virtualisation.fileSystems = {
70+
"/" = {
71+
fsType = lib.mkForce "tmpfs";
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device = lib.mkForce "none";
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neededForBoot = true;
74+
};
75+
"/persistent" = {
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device = "/dev/vda";
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fsType = "ext4";
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neededForBoot = true;
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};
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};
81+
82+
environment.persistence.main = {
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persistentStoragePath = "/persistent";
84+
enableDebugging = true;
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files = [
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"/etc/machine-id"
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"/etc/ssh/ssh_host_ed25519_key"
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{ file = "/etc/ssh/ssh_host_ed25519_key.pub"; method = "symlink"; }
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"/etc/ssh/ssh_host_rsa_key"
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"/etc/ssh/ssh_host_rsa_key.pub"
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];
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directories = [
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{ directory = "/etc/nixos"; mode = "0700"; user = "root"; group = "root"; }
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"/var/log"
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"/var/lib/bluetooth"
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"/var/lib/nixos"
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"/var/lib/systemd/coredump"
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"/etc/NetworkManager/system-connections"
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];
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};
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};
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};
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104+
testScript = { nodes, ... }:
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let
106+
nixos = nodes.persistence.environment.persistence.main;
107+
nixos-users = nodes.persistence.environment.persistence.main.users.bird or { };
108+
home-manager = nodes.persistence.home-manager.users.bird.home.persistence.main or { };
109+
main = lib.zipAttrsWith (_name: lib.flatten) [ nixos nixos-users home-manager ];
110+
in
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''
112+
persistence.start(allow_reboot=True)
113+
114+
persistence.wait_for_unit("sshd.service")
115+
116+
persistence.succeed("echo potato > '/home/bird/.config/persistence_test'")
117+
118+
${lib.concatMapStrings (file:
119+
let
120+
targetFile = self.lib.concatPaths [ file.persistentStoragePath file.filePath ];
121+
in ''
122+
persistence.wait_for_file("${targetFile}", 1)
123+
persistence.succeed("diff ${targetFile} ${file.filePath}")
124+
'')
125+
main.files}
126+
127+
${lib.concatMapStrings (dir:
128+
let
129+
targetDir = self.lib.concatPaths [ dir.persistentStoragePath dir.dirPath ];
130+
in ''
131+
persistence.wait_for_file("${targetDir}", 1)
132+
persistence.succeed("diff <(stat -c '%Hd %Ld %i' ${targetDir}) <(stat -c '%Hd %Ld %i' ${dir.dirPath})")
133+
'')
134+
main.directories}
135+
136+
persistence.reboot()
137+
138+
persistence.wait_for_console_text("reviving user .* with UID")
139+
140+
${lib.concatMapStrings (file:
141+
let
142+
targetFile = self.lib.concatPaths [ file.persistentStoragePath file.filePath ];
143+
in ''
144+
persistence.wait_for_file("${targetFile}", 1)
145+
${if file.method == "auto" then ''
146+
persistence.succeed("diff <(stat -c '%Hd %Ld %i' ${targetFile}) <(stat -c '%Hd %Ld %i' ${file.filePath})")
147+
'' else ''
148+
persistence.succeed("test '${targetFile}' = $(readlink -f ${file.filePath})")
149+
''}
150+
persistence.succeed("diff ${targetFile} ${file.filePath}")
151+
'')
152+
main.files}
153+
'';
154+
};
155+
in
156+
{
157+
nixos = mkTest {
158+
name = "nixos-persistence";
159+
configuration = {
160+
boot.initrd.systemd.enable = true;
161+
162+
environment.persistence.main.users.bird = {
163+
directories = [
164+
"Downloads"
165+
"Music"
166+
"Pictures"
167+
"Documents"
168+
"Videos"
169+
];
170+
files = [
171+
".config/persistence_test"
172+
];
173+
};
174+
};
175+
};
176+
home-manager = mkTest {
177+
name = "hm-persistence";
178+
configuration = { config, ... }:
179+
{
180+
home-manager.users.bird.home.stateVersion = config.system.stateVersion;
181+
182+
imports = [
183+
home-manager.nixosModules.home-manager
184+
];
185+
186+
home-manager.users.bird = {
187+
imports = [ ./home-manager.nix ];
188+
home.persistence.main = {
189+
persistentStoragePath = "/persistent";
190+
directories = [
191+
"Downloads"
192+
"Music"
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"Pictures"
194+
"Documents"
195+
"Videos"
196+
];
197+
files = [
198+
".config/persistence_test"
199+
];
200+
};
201+
};
202+
};
203+
};
204+
}
205+
);
206+
};
13207
}

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