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feat(generic): Implemented every function of Host to GenericHost

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This commit is contained in:
soyouzpanda 2024-08-24 15:26:36 +02:00
parent ab8d8b0321
commit 71200e5c17
Signed by: ecoppens
GPG key ID: 871893E37A732093
11 changed files with 175 additions and 110 deletions
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3
src/error.rs
View file

@ -55,6 +55,9 @@ pub enum ColmenaError {
#[snafu(display("Unexpected active profile: {:?}", profile))]
ActiveProfileUnexpected { profile: Profile },
#[snafu(display("Invalid JSON from activation program: {}", error))]
InvalidActivationProgramJson { error: serde_json::Error },
#[snafu(display("Could not determine current profile"))]
FailedToGetCurrentProfile,

15
src/nix/deployment/mod.rs
View file

@ -28,7 +28,7 @@ use super::{
host::Local as LocalHost,
key::{Key, UploadAt as UploadKeyAt},
ColmenaError, ColmenaResult, CopyDirection, CopyOptions, Hive, Host, NodeConfig, NodeName,
Profile, ProfileDerivation, RebootOptions, StorePath,
Profile, ProfileDerivation, RebootOptions,
};
/// A deployment.
@ -637,18 +637,7 @@ impl Deployment {
}
}
let activation_program: &StorePath =
&arc_self.hive
.get_registry_config()
.await?
.systems
.get(target.config.system_type.as_ref().unwrap_or(&"nixos".to_owned()))
.expect(&format!("System type {} does not exists",
target.config.system_type.as_ref().unwrap_or(&"nixos".to_owned())
))
.activation_program;
host.activate(&profile_r, arc_self.goal, activation_program).await?;
host.activate(&profile_r, arc_self.goal).await?;
job.success_with_message(arc_self.goal.success_str().to_string())?;

2
src/nix/hive/eval.nix
View file

@ -197,7 +197,7 @@ let
];
serializableSystemTypeConfigKeys = [
"supportsDeployment"
"supportsDeployment" "activationProgram" "protocol"
];
in rec {

13
src/nix/hive/mod.rs
View file

@ -274,6 +274,18 @@ impl Hive {
for node in selected_nodes.into_iter() {
let config = node_configs.remove(&node).unwrap();
if let Some(system_type) = config.system_type.as_ref() {
log::debug!(
"Using generic host (system_type: {}) for node {}",
system_type,
node.0
);
let system_config = registry.systems.get(system_type).unwrap();
let generic_host = config.to_generic_host(system_config);
let target = TargetNode::new(node.clone(), Some(Box::new(generic_host)), config);
targets.insert(node, target);
} else {
log::debug!("Using SSH host for node {}", node.0);
let host = config.to_ssh_host().map(|mut host| {
n_ssh += 1;
@ -294,6 +306,7 @@ impl Hive {
targets.insert(node, target);
}
}
}
let skipped = n_selected - n_ssh;

9
src/nix/hive/options.nix
View file

@ -264,6 +264,15 @@ with builtins; rec {
'';
type = types.path;
};
protocol = lib.mkOption {
type = types.str;
default = "local";
description = mdDoc ''
Which protocol to use to deploy.
It can be ssh, local, etc. but strongly depends on `activationProgram`
'';
};
};
};
registryOptions = { lib, ... }: let

148
src/nix/host/generic.rs
View file

@ -6,35 +6,31 @@ use serde::{Deserialize, Serialize};
use tokio::io::{AsyncBufReadExt, AsyncWriteExt, BufReader, BufWriter};
use tokio::process::Command;
use super::{CopyDirection, CopyOptions, Host};
use super::{CopyDirection, CopyOptions, Host, RebootOptions};
use crate::error::{ColmenaError, ColmenaResult};
use crate::job::JobHandle;
use crate::nix::{self, Profile, StorePath};
use crate::nix::{self, Key, Profile, StorePath, SystemTypeConfig};
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct TransportId(String);
pub type TransportId = String;
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct Transport {
id: TransportId,
name: String,
long_name: String,
description: String,
}
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct GoalId(String);
pub type GoalId = String;
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct Goal {
id: GoalId,
name: String,
long_name: String,
description: String,
}
/// A request to the activation program
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
#[derive(Clone, Debug, Serialize, Deserialize)]
pub enum Request {
/// Asks for activation program's capabilities
Capabilities,
@ -44,7 +40,7 @@ pub enum Request {
transport: TransportId,
path: StorePath,
to_host: bool,
options: HashMap<String, String>,
options: CopyOptions,
},
/// Deploys the profile to host
@ -52,18 +48,32 @@ pub enum Request {
transport: TransportId,
goal: GoalId,
toplevel: StorePath,
options: HashMap<String, String>,
options: CopyOptions,
},
/// Realizes the derivation
Realize {
transport: TransportId,
path: StorePath,
options: HashMap<String, String>,
},
/// Uploads keys to host
UploadKeys { transport: TransportId },
UploadKeys {
transport: TransportId,
keys: HashMap<String, Key>,
require_ownership: bool,
},
Activate {
transport: TransportId,
profile: StorePath,
goal: GoalId,
},
Reboot {
transport: TransportId,
wait_for_boot: bool,
},
}
#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
@ -96,47 +106,61 @@ impl Host for GenericHost {
direction: CopyDirection,
options: CopyOptions,
) -> ColmenaResult<()> {
self.call(Request::CopyClosure {
self.call_default_handler(Request::CopyClosure {
transport: self.transport.clone(),
path: closure.clone(),
to_host: direction == CopyDirection::ToRemote,
options: HashMap::from([(
"include_outputs".to_owned(),
if options.include_outputs {
"true".to_owned()
} else {
"false".to_owned()
},
)]),
options,
})
.await
}
async fn realize_remote(&mut self, derivation: &StorePath) -> ColmenaResult<Vec<StorePath>> {
self.call(Request::Realize {
Ok(self
.call(
Request::Realize {
transport: self.transport.clone(),
path: derivation.clone(),
options: HashMap::new(),
})
.await?;
Ok(Vec::new())
},
move |response, mut store_paths| {
match response {
Response::Progress { phase } => println!("{}", phase),
Response::NewStorePath { store_path } => store_paths.push(store_path),
_ => (),
};
store_paths
},
Vec::new(),
)
.await?)
}
fn set_job(&mut self, bar: Option<JobHandle>) {}
fn set_job(&mut self, _: Option<JobHandle>) {}
async fn deploy(
&mut self,
profile: &Profile,
goal: nix::Goal,
copy_options: CopyOptions,
activation_program: Option<&StorePath>,
) -> ColmenaResult<()> {
self.call(Request::Deploy {
self.call_default_handler(Request::Deploy {
transport: self.transport.clone(),
goal: GoalId(goal.to_string()),
goal: goal.to_string(),
toplevel: profile.as_store_path().clone(),
options: HashMap::new(),
options: copy_options,
})
.await
}
async fn upload_keys(
&mut self,
keys: &HashMap<String, Key>,
require_ownership: bool,
) -> ColmenaResult<()> {
self.call_default_handler(Request::UploadKeys {
transport: self.transport.clone(),
keys: keys.clone(),
require_ownership,
})
.await
}
@ -148,17 +172,50 @@ impl Host for GenericHost {
async fn get_main_system_profile(&mut self) -> ColmenaResult<Profile> {
Err(ColmenaError::Unsupported)
}
async fn activate(&mut self, profile: &Profile, goal: nix::Goal) -> ColmenaResult<()> {
self.call_default_handler(Request::Activate {
transport: self.transport.clone(),
profile: profile.as_store_path().clone(),
goal: goal.to_string(),
})
.await
}
async fn reboot(&mut self, options: RebootOptions) -> ColmenaResult<()> {
self.call_default_handler(Request::Reboot {
transport: self.transport.clone(),
wait_for_boot: options.wait_for_boot,
})
.await
}
}
impl GenericHost {
async fn call(&mut self, request: Request) -> ColmenaResult<()> {
pub fn new(system: &SystemTypeConfig) -> GenericHost {
Self {
activation_program: system.activation_program.clone(),
transport: system.protocol.clone(),
}
}
async fn call<F, T>(
&mut self,
request: Request,
handler: F,
initial_value: T,
) -> ColmenaResult<T>
where
F: Fn(Response, T) -> T,
{
let mut command = Command::new(self.activation_program.as_path())
.stdin(Stdio::piped())
.stdout(Stdio::piped())
.stderr(Stdio::piped())
.spawn()?;
let json = serde_json::to_string(&request).unwrap();
let json = serde_json::to_string(&request)
.map_err(|error| ColmenaError::InvalidActivationProgramJson { error })?;
let mut stdin = BufWriter::new(command.stdin.take().unwrap());
let mut stdout = BufReader::new(command.stdout.take().unwrap()).lines();
@ -172,11 +229,26 @@ impl GenericHost {
.expect("child process encountered an error");
});
let mut value = initial_value;
while let Some(line) = stdout.next_line().await? {
let response: Response = serde_json::from_str(line.as_str()).unwrap();
println!("{:?}", response);
let response: Response = serde_json::from_str(line.as_str())
.map_err(|error| ColmenaError::InvalidActivationProgramJson { error })?;
value = handler(response, value);
}
Ok(())
Ok(value)
}
async fn call_default_handler(&mut self, request: Request) -> ColmenaResult<()> {
self.call(
request,
|response, _| match response {
Response::Progress { phase } => println!("{phase}"),
_ => (),
},
(),
)
.await
}
}

11
src/nix/host/local.rs
View file

@ -78,12 +78,7 @@ impl Host for Local {
Ok(())
}
async fn activate(
&mut self,
profile: &Profile,
goal: Goal,
activation_program: &StorePath,
) -> ColmenaResult<()> {
async fn activate(&mut self, profile: &Profile, goal: Goal) -> ColmenaResult<()> {
if !goal.requires_activation() {
return Err(ColmenaError::Unsupported);
}
@ -96,9 +91,7 @@ impl Host for Local {
}
let command = {
let activation_command = profile
.activation_command(goal, activation_program)
.unwrap();
let activation_command = profile.activation_command(goal).unwrap();
self.make_privileged_command(&activation_command)
};

21
src/nix/host/mod.rs
View file

@ -1,6 +1,7 @@
use std::collections::HashMap;
use async_trait::async_trait;
use serde::{Deserialize, Serialize};
use super::{Goal, Key, Profile, StorePath};
use crate::error::{ColmenaError, ColmenaResult};
@ -15,14 +16,15 @@ pub use local::Local;
mod key_uploader;
mod generic;
pub use generic::GenericHost;
#[derive(Copy, Clone, Debug, PartialEq, Eq)]
#[derive(Copy, Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub enum CopyDirection {
ToRemote,
FromRemote,
}
#[derive(Copy, Clone, Debug)]
#[derive(Copy, Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct CopyOptions {
include_outputs: bool,
use_substitutes: bool,
@ -130,7 +132,6 @@ pub trait Host: Send + Sync + std::fmt::Debug {
profile: &Profile,
goal: Goal,
copy_options: CopyOptions,
activation_program: Option<&StorePath>,
) -> ColmenaResult<()> {
self.copy_closure(
profile.as_store_path(),
@ -140,12 +141,7 @@ pub trait Host: Send + Sync + std::fmt::Debug {
.await?;
if goal.requires_activation() {
self.activate(
profile,
goal,
activation_program.expect("Unknown activation program"),
)
.await?;
self.activate(profile, goal).await?;
}
Ok(())
@ -179,12 +175,7 @@ pub trait Host: Send + Sync + std::fmt::Debug {
///
/// The profile must already exist on the host. You should probably use deploy instead.
#[allow(unused_variables)]
async fn activate(
&mut self,
profile: &Profile,
goal: Goal,
activation_program: &StorePath,
) -> ColmenaResult<()> {
async fn activate(&mut self, profile: &Profile, goal: Goal) -> ColmenaResult<()> {
Err(ColmenaError::Unsupported)
}

11
src/nix/host/ssh.rs
View file

@ -90,12 +90,7 @@ impl Host for Ssh {
Ok(())
}
async fn activate(
&mut self,
profile: &Profile,
goal: Goal,
activation_program: &StorePath,
) -> ColmenaResult<()> {
async fn activate(&mut self, profile: &Profile, goal: Goal) -> ColmenaResult<()> {
if !goal.requires_activation() {
return Err(ColmenaError::Unsupported);
}
@ -106,9 +101,7 @@ impl Host for Ssh {
self.run_command(set_profile).await?;
}
let activation_command = profile
.activation_command(goal, activation_program)
.unwrap();
let activation_command = profile.activation_command(goal).unwrap();
let v: Vec<&str> = activation_command.iter().map(|s| &**s).collect();
let command = self.ssh(&v);
self.run_command(command).await

8
src/nix/mod.rs
View file

@ -10,8 +10,8 @@ use validator::{Validate, ValidationError as ValidationErrorType};
use crate::error::{ColmenaError, ColmenaResult};
pub mod host;
use host::Ssh;
pub use host::{CopyDirection, CopyOptions, Host, RebootOptions};
use host::{GenericHost, Ssh};
pub mod hive;
pub use hive::{Hive, HivePath};
@ -104,6 +104,8 @@ pub struct SystemTypeConfig {
#[serde(rename = "activationProgram")]
pub activation_program: StorePath,
pub protocol: String,
}
#[derive(Debug, Clone, Validate, Deserialize)]
@ -211,6 +213,10 @@ impl NodeConfig {
host
})
}
pub fn to_generic_host(&self, system_config: &SystemTypeConfig) -> GenericHost {
GenericHost::new(system_config)
}
}
impl NixFlags {

6
src/nix/profile.rs
View file

@ -26,11 +26,7 @@ impl Profile {
}
/// Returns the command to activate this profile.
pub fn activation_command(
&self,
goal: Goal,
activation_program: &StorePath,
) -> Option<Vec<String>> {
pub fn activation_command(&self, goal: Goal) -> Option<Vec<String>> {
if let Some(goal) = goal.as_str() {
let path = self.as_path().join("bin/switch-to-configuration");
let switch_to_configuration = path