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|
use std::path::PathBuf;
use diesel::{PgConnection, QueryResult};
use planetwars_matchrunner::{self as runner, docker_runner::DockerBotSpec, BotSpec, MatchConfig};
use runner::MatchOutcome;
use tokio::task::JoinHandle;
use crate::{
db::{
self,
matches::{MatchData, MatchResult},
},
util::gen_alphanumeric,
ConnectionPool, BOTS_DIR, MAPS_DIR, MATCHES_DIR,
};
const PYTHON_IMAGE: &str = "python:3.10-slim-buster";
pub struct RunMatch {
log_file_name: String,
players: Vec<MatchPlayer>,
match_id: Option<i32>,
}
pub struct MatchPlayer {
bot_spec: Box<dyn BotSpec>,
// metadata that will be passed on to database
code_bundle_id: Option<i32>,
}
impl MatchPlayer {
pub fn from_bot_version(bot: &db::bots::Bot, version: &db::bots::BotVersion) -> Self {
MatchPlayer {
bot_spec: bot_version_to_botspec(bot, version),
code_bundle_id: Some(version.id),
}
}
/// Construct a MatchPlayer from a BotVersion that certainly contains a code bundle path.
/// Will panic when this is not the case.
pub fn from_code_bundle_version(version: &db::bots::BotVersion) -> Self {
let code_bundle_path = version
.code_bundle_path
.as_ref()
.expect("no code_bundle_path found");
MatchPlayer {
bot_spec: python_docker_bot_spec(code_bundle_path),
code_bundle_id: Some(version.id),
}
}
pub fn from_bot_spec(bot_spec: Box<dyn BotSpec>) -> Self {
MatchPlayer {
bot_spec,
code_bundle_id: None,
}
}
}
impl RunMatch {
pub fn from_players(players: Vec<MatchPlayer>) -> Self {
let log_file_name = format!("{}.log", gen_alphanumeric(16));
RunMatch {
log_file_name,
players,
match_id: None,
}
}
pub fn into_runner_config(self) -> runner::MatchConfig {
runner::MatchConfig {
map_path: PathBuf::from(MAPS_DIR).join("hex.json"),
map_name: "hex".to_string(),
log_path: PathBuf::from(MATCHES_DIR).join(&self.log_file_name),
players: self
.players
.into_iter()
.map(|player| runner::MatchPlayer {
bot_spec: player.bot_spec,
})
.collect(),
}
}
pub fn store_in_database(&mut self, db_conn: &PgConnection) -> QueryResult<MatchData> {
// don't store the same match twice
assert!(self.match_id.is_none());
let new_match_data = db::matches::NewMatch {
state: db::matches::MatchState::Playing,
log_path: &self.log_file_name,
};
let new_match_players = self
.players
.iter()
.map(|p| db::matches::MatchPlayerData {
code_bundle_id: p.code_bundle_id,
})
.collect::<Vec<_>>();
let match_data = db::matches::create_match(&new_match_data, &new_match_players, &db_conn)?;
self.match_id = Some(match_data.base.id);
Ok(match_data)
}
pub fn spawn(self, pool: ConnectionPool) -> JoinHandle<MatchOutcome> {
let match_id = self.match_id.expect("match must be saved before running");
let runner_config = self.into_runner_config();
tokio::spawn(run_match_task(pool, runner_config, match_id))
}
}
pub fn bot_version_to_botspec(
bot: &db::bots::Bot,
bot_version: &db::bots::BotVersion,
) -> Box<dyn BotSpec> {
if let Some(code_bundle_path) = &bot_version.code_bundle_path {
python_docker_bot_spec(code_bundle_path)
} else if let Some(container_digest) = &bot_version.container_digest {
// TODO: put this in config
let registry_url = "localhost:9001";
Box::new(DockerBotSpec {
image: format!("{}/{}@{}", registry_url, bot.name, container_digest),
binds: None,
argv: None,
working_dir: None,
})
} else {
panic!("bad bot version")
}
}
fn python_docker_bot_spec(code_bundle_path: &str) -> Box<dyn BotSpec> {
let code_bundle_rel_path = PathBuf::from(BOTS_DIR).join(code_bundle_path);
let code_bundle_abs_path = std::fs::canonicalize(&code_bundle_rel_path).unwrap();
let code_bundle_path_str = code_bundle_abs_path.as_os_str().to_str().unwrap();
// TODO: it would be good to simplify this configuration
Box::new(DockerBotSpec {
image: PYTHON_IMAGE.to_string(),
binds: Some(vec![format!("{}:{}", code_bundle_path_str, "/workdir")]),
argv: Some(vec!["python".to_string(), "bot.py".to_string()]),
working_dir: Some("/workdir".to_string()),
})
}
async fn run_match_task(
connection_pool: ConnectionPool,
match_config: MatchConfig,
match_id: i32,
) -> MatchOutcome {
let outcome = runner::run_match(match_config).await;
// update match state in database
let conn = connection_pool
.get()
.await
.expect("could not get database connection");
let result = MatchResult::Finished {
winner: outcome.winner.map(|w| (w - 1) as i32), // player numbers in matchrunner start at 1
};
db::matches::save_match_result(match_id, result, &conn).expect("could not save match result");
outcome
}
|
