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Pass envs to AppService, name modules without .wasm extension (#16)

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folex 2020-08-14 13:28:15 +03:00 committed by GitHub
parent 181c161ffc
commit 77cd79e124
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4 changed files with 56 additions and 54 deletions
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42
fluence-app-service/src/service.rs
View File

@ -22,7 +22,6 @@ use fluence_faas::FluenceFaaS;
use fluence_faas::ModulesConfig;
use std::convert::TryInto;
use std::path::PathBuf;
const SERVICE_ID_ENV_NAME: &str = "service_id";
const SERVICE_LOCAL_DIR_NAME: &str = "local";
@ -37,41 +36,15 @@ pub struct AppService {
impl AppService {
/// Create Service with given modules and service id.
pub fn new<I, C, S>(modules: I, config: C, service_id: S) -> Result<Self>
pub fn new<C, S>(config: C, service_id: S, envs: Vec<String>) -> Result<Self>
where
I: IntoIterator<Item = String>,
C: TryInto<ModulesConfig>,
S: AsRef<str>,
AppServiceError: From<C::Error>,
{
let config: ModulesConfig = config.try_into()?;
let service_id = service_id.as_ref();
let config = Self::set_env_and_dirs(config, service_id, None)?;
let modules = modules.into_iter().collect();
let faas = FluenceFaaS::with_module_names(&modules, config)?;
Ok(Self { faas })
}
/// Create Service with given raw config, service id and service base dir.
pub fn with_raw_config<P, SI>(
config: P,
service_id: SI,
service_base_dir: Option<&str>,
) -> Result<Self>
where
P: Into<PathBuf>,
SI: AsRef<str>,
{
let service_id = service_id.as_ref();
let service_base_dir = service_base_dir;
let config_content = std::fs::read(config.into())?;
let config: crate::RawModulesConfig = toml::from_slice(&config_content)?;
let config = config.try_into()?;
let config = Self::set_env_and_dirs(config, service_id, service_base_dir)?;
let config = Self::set_env_and_dirs(config, service_id, envs)?;
let faas = FluenceFaaS::with_raw_config(config)?;
@ -106,11 +79,10 @@ impl AppService {
fn set_env_and_dirs(
mut config: ModulesConfig,
service_id: &str,
service_base_dir: Option<&str>,
mut envs: Vec<String>,
) -> Result<ModulesConfig> {
let base_dir = match (&config.service_base_dir, service_base_dir) {
(_, Some(base_dir)) => base_dir,
(Some(ref base_dir), None) => base_dir,
let base_dir = match config.service_base_dir.as_ref() {
Some(base_dir) => base_dir,
_ => {
return Err(AppServiceError::IOError(String::from(
"service_base_dir should be specified",
@ -130,19 +102,19 @@ impl AppService {
let local_dir: String = local_dir_path.to_string_lossy().into();
let tmp_dir: String = tmp_dir_path.to_string_lossy().into();
let service_id_env = vec![format!("{}={}", SERVICE_ID_ENV_NAME, service_id).into_bytes()];
let preopened_files = vec![local_dir.clone(), tmp_dir.clone()];
let mapped_dirs = vec![
(String::from(SERVICE_LOCAL_DIR_NAME), local_dir),
(String::from(SERVICE_TMP_DIR_NAME), tmp_dir),
];
envs.push(format!("{}={}", SERVICE_ID_ENV_NAME, service_id));
config.modules_config = config
.modules_config
.into_iter()
.map(|(name, module_config)| {
let module_config = module_config
.extend_wasi_envs(service_id_env.clone())
.extend_wasi_envs(envs.iter().map(|s| s.clone().into_bytes()).collect())
.extend_wasi_files(preopened_files.clone(), mapped_dirs.clone());
(name, module_config)

34
fluence-faas/src/faas.rs
View File

@ -27,24 +27,30 @@ use std::convert::TryInto;
use std::collections::HashSet;
use std::collections::HashMap;
use std::fs;
use std::path::PathBuf;
use std::path::{PathBuf, Path};
// TODO: remove and use mutex instead
unsafe impl Send for FluenceFaaS {}
/// Strategy for module loading: either `All`, or only those specified in `Named`
/// Strategies for module loading.
pub enum ModulesLoadStrategy<'a> {
/// Try to load all files in a given directory
#[allow(dead_code)]
All,
/// Try to load only files contained in the set
Named(&'a HashSet<String>),
/// In a given directory, try to load all files ending with .wasm
WasmOnly,
}
impl<'a> ModulesLoadStrategy<'a> {
#[inline]
/// Returns true if `module` should be loaded.
pub fn should_load(&self, module: &str) -> bool {
pub fn should_load(&self, module: &Path) -> bool {
match self {
ModulesLoadStrategy::All => true,
ModulesLoadStrategy::Named(set) => set.contains(module),
ModulesLoadStrategy::Named(set) => set.contains(module.to_string_lossy().as_ref()),
ModulesLoadStrategy::WasmOnly => module.extension().map_or(false, |e| e == ".wasm"),
}
}
@ -70,6 +76,19 @@ impl<'a> ModulesLoadStrategy<'a> {
_ => <_>::default(),
}
}
#[inline]
pub fn extract_module_name(&self, module: String) -> String {
match self {
ModulesLoadStrategy::WasmOnly => {
let path: &Path = module.as_ref();
path.file_stem()
.map(|s| s.to_string_lossy().to_string())
.unwrap_or(module)
}
_ => module,
}
}
}
pub struct FluenceFaaS {
@ -94,7 +113,7 @@ impl FluenceFaaS {
.modules_dir
.as_ref()
.map_or(Ok(HashMap::new()), |dir| {
Self::load_modules(dir, ModulesLoadStrategy::All)
Self::load_modules(dir, ModulesLoadStrategy::WasmOnly)
})?;
Self::with_modules::<ModulesConfig>(modules, config)
@ -171,11 +190,12 @@ impl FluenceFaaS {
.into_string()
.map_err(|name| IOError(format!("invalid file name: {:?}", name)))?;
if modules.should_load(&module_name) {
if modules.should_load(&module_name.as_ref()) {
let module_bytes = fs::read(path)?;
let module_name = modules.extract_module_name(module_name);
if hash_map.insert(module_name, module_bytes).is_some() {
return Err(FaaSError::ConfigParseError(String::from(
"config contains modules with the same name",
"module {} is duplicated in config",
)));
}
}

13
fluence-faas/src/misc/config.rs
View File

@ -21,6 +21,7 @@ use serde_derive::Serialize;
use serde_derive::Deserialize;
use std::convert::TryInto;
use std::path::PathBuf;
/*
An example of the config:
@ -60,10 +61,22 @@ service_base_dir = "/Users/user/tmp"
pub struct RawModulesConfig {
pub modules_dir: Option<String>,
pub service_base_dir: Option<String>,
#[serde(skip_serializing_if = "Vec::is_empty")]
pub module: Vec<RawModuleConfig>,
pub default: Option<RawDefaultModuleConfig>,
}
impl RawModulesConfig {
/// Load config from filesystem
pub fn load<P: Into<PathBuf>>(path: P) -> Result<Self> {
let path = path.into();
let bytes = std::fs::read(&path)?;
toml::from_slice(bytes.as_slice()).map_err(|e| {
FaaSError::ConfigParseError(format!("Error parsing config {:?}: {:?}", path, e))
})
}
}
impl TryInto<ModulesConfig> for RawModulesConfig {
type Error = FaaSError;

21
tools/repl/src/repl.rs
View File

@ -16,7 +16,7 @@
use crate::Result;
use fluence_app_service::AppService;
use fluence_app_service::{AppService, RawModulesConfig};
use std::path::PathBuf;
use std::fs;
@ -162,18 +162,15 @@ impl REPL {
let service_id = uuid::Uuid::new_v4().to_string();
let start = Instant::now();
let app_service = match config_file_path {
Some(config_file_path) => {
let config_file_path = config_file_path.into();
AppService::with_raw_config(config_file_path, &service_id, Some(&tmp_path))
}
None => {
let mut config: fluence_app_service::RawModulesConfig = <_>::default();
config.service_base_dir = Some(tmp_path);
AppService::new(std::iter::empty(), config, &service_id)
}
}?;
let mut config = config_file_path
.map(|p| RawModulesConfig::load(p.into()))
.transpose()?
.unwrap_or_default();
config.service_base_dir = Some(tmp_path);
let app_service = AppService::new(config, &service_id, vec![])?;
let duration = start.elapsed();
println!(