+ mod docker

src/docker.rs

@@ -0,0 +1,49 @@
+use anyhow::{Context, Result};
+use bollard::container::ListContainersOptions;
+use std::{collections::HashMap, sync::Arc};
+
+pub type Docker = bollard::Docker;
+pub type Containers = Vec<String>;
+
+pub fn get_query_options(label: String) -> ListContainersOptions<String> {
+    let mut filters = HashMap::new();
+    //filters.insert("status", vec!["running"]);
+    filters.insert("label".into(), vec![label]);
+    filters.insert("health".into(), vec!["unhealthy".into()]);
+
+    ListContainersOptions {
+        filters,
+        ..Default::default()
+    }
+}
+
+pub async fn query_containers<T>(
+    connection: &Docker,
+    query_options: ListContainersOptions<T>,
+) -> anyhow::Result<Vec<String>>
+where
+    T: std::cmp::Eq + std::hash::Hash + serde::ser::Serialize,
+    std::string::String: From<T>,
+{
+    Ok(connection
+        .list_containers(Some(query_options))
+        .await?
+        .into_iter()
+        .map(|container| container.id.unwrap())
+        .collect())
+}
+
+pub async fn restart_container(connection: &Docker, container_name: &str) -> anyhow::Result<()> {
+    connection.restart_container(container_name, None).await?;
+    Ok(())
+}
+
+pub async fn get_docker_connection() -> Result<Arc<Docker>> {
+    let connection = Arc::new(Docker::connect_with_defaults()?);
+    let _ = connection
+        .as_ref()
+        .ping()
+        .await
+        .context("ping on docker connection")?;
+    Ok(connection)
+}

src/main.rs

@@ -1,18 +1,20 @@
-use anyhow::Context;
-use bollard::container::ListContainersOptions;
-use bollard::Docker;
 use clap::Parser;
 use parse_duration::parse as parse_duration;
-use std::collections::HashMap;
-use std::default::Default;
-use std::sync::Arc;
-use std::time::Duration;
-use tokio::sync::mpsc;
-use tokio::time::{timeout, Instant};
+use std::{collections::HashMap, sync::Arc};
+use tokio::{
+    sync::mpsc,
+    time::{timeout, Duration, Instant},
+};
 
 mod logger;
 use logger::{create_logger, LogLevel};
 
+mod docker;
+use docker::{
+    get_docker_connection, get_query_options, query_containers, restart_container, Containers,
+    Docker,
+};
+
 #[derive(Parser, Debug)]
 #[clap(author, version, about, long_about = None)]
 #[clap(propagate_version = true)]
@@ -34,41 +36,6 @@ struct Cli {
     pub log_level: LogLevel,
 }
 
-fn get_query_options(args: &Cli) -> ListContainersOptions<String> {
-    let mut filters = HashMap::new();
-    //filters.insert("status", vec!["running"]);
-    filters.insert("label".into(), vec![args.label.clone()]);
-    filters.insert("health".into(), vec!["unhealthy".into()]);
-
-    ListContainersOptions {
-        filters,
-        ..Default::default()
-    }
-}
-
-async fn query_containers<T>(
-    connection: &Docker,
-    query_options: ListContainersOptions<T>,
-) -> anyhow::Result<Vec<String>>
-where
-    T: std::cmp::Eq + std::hash::Hash + serde::ser::Serialize,
-    std::string::String: From<T>,
-{
-    Ok(connection
-        .list_containers(Some(query_options))
-        .await?
-        .into_iter()
-        .map(|container| container.id.unwrap())
-        .collect())
-}
-
-async fn restart_container(connection: &Docker, container_name: &str) -> anyhow::Result<()> {
-    connection.restart_container(container_name, None).await?;
-    Ok(())
-}
-
-type Containers = Vec<String>;
-
 async fn scheduler_task(
     interval: Duration,
     tx: mpsc::Sender<()>,
@@ -87,9 +54,9 @@ async fn query_task(
     connection: Arc<Docker>,
     tx: mpsc::Sender<Containers>,
     mut scheduler_rx: mpsc::Receiver<()>,
-    args: Cli,
+    label: String,
 ) {
-    let query_options = get_query_options(&args);
+    let query_options = get_query_options(label);
 
     log::debug!("query_task -> start recv");
     while scheduler_rx.recv().await.is_some() {
@@ -179,13 +146,7 @@ async fn main() -> anyhow::Result<()> {
 
     let logger = create_logger(&cli.log_level)?;
 
-    let connection = Arc::new(Docker::connect_with_defaults()?);
-    let _ = connection
-        .as_ref()
-        .ping()
-        .await
-        .context("ping on docker connection")?;
-
+    let connection = get_docker_connection().await?;
     let query_connection = connection.clone();
     let restart_connection = connection.clone();
 
@@ -195,14 +156,13 @@ async fn main() -> anyhow::Result<()> {
     let (query_tx, filter_rx) = mpsc::channel::<Containers>(1);
     let (filter_tx, restart_rx) = mpsc::channel::<Containers>(1);
 
-    let interval = cli.interval;
-    let unhealthy_timeout = cli.unhealthy_timeout;
+    let (interval, unhealthy_timeout, label) = (cli.interval, cli.unhealthy_timeout, cli.label);
 
     shutdown_control(Some(shutdown_tx));
 
     tokio::try_join!(
         tokio::spawn(scheduler_task(interval, scheduler_tx, shutdown_rx)),
-        tokio::spawn(query_task(query_connection, query_tx, scheduler_rx, cli)),
+        tokio::spawn(query_task(query_connection, query_tx, scheduler_rx, label)),
         tokio::spawn(filter_task(unhealthy_timeout, filter_rx, filter_tx)),
         tokio::spawn(restart_task(restart_connection, restart_rx))
     )?;