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clear-docker-images/src/main.rs

137 lines
3.4 KiB
Rust

mod images;
use chrono::{NaiveDateTime, Utc};
use clap::Parser;
use log::{error, info};
use simple_logger::SimpleLogger;
use std::process::exit;
use crate::images::DockerActions;
const TWO_DAYS_TIMESTAMP: i64 = 172_800;
/// Clear docker images from
#[derive(Parser, Debug)]
#[clap(author, version, about, long_about = None)]
struct Args {
/// filter by date.
///
/// Can filter by a minimum age $DATE or from $START|$STOP (format example: YYYY-MM-DD or YYYY-MM-DDTHH:MM:SS) [default: $NOW - 2d]
#[clap(short, long, parse(try_from_str = parse_user_date))]
date: Option<DateArgs>,
/// filter by repository name
repository: Option<String>,
/// add tags exclusion
#[clap(short, long)]
tags: Option<Vec<String>>,
/// image cleanup will not be triggered [default: false]
#[clap(long, takes_value = false)]
dry_run: bool,
/// should force image deletion [default: false]
#[clap(short, long, takes_value = false)]
force: bool,
/// where is located the docker socket (can be a UNIX socket or TCP protocol)
#[clap(short, long, default_value = "/var/run/docker.sock")]
socket: String,
}
#[derive(Debug)]
pub struct DateArgs {
start: i64,
stop: Option<i64>,
}
#[tokio::main]
async fn main() {
let args = Args::parse();
let logger = SimpleLogger::new()
.without_timestamps()
.with_level(log::LevelFilter::Info);
if let Some(e) = logger.init().err() {
eprintln!("failed to initialize logger: {}", e);
exit(1);
}
let actions = match DockerActions::new(
args.socket,
args.repository,
args.tags.map_or(vec![], |t| t),
args.date.map_or(
DateArgs {
start: Utc::now().timestamp() - TWO_DAYS_TIMESTAMP,
stop: None,
},
|d| d,
),
) {
Ok(d) => d,
Err(e) => {
error!("failed to connect to docker socket: {}", e);
exit(1);
}
};
let images = match actions.get().await {
Ok(i) => i,
Err(e) => {
error!("failed to retrieve docker images: {}", e);
exit(1);
}
};
let saved = match actions
.delete(actions.filter(images), args.force, args.dry_run)
.await
{
Ok(s) => s,
Err(e) => {
error!("failed to delete docker images: {}", e);
exit(1);
}
};
info!(
"Total disk space saved: {}",
if saved / 1000_000 >= 1000 {
format!("{:.2}GB", saved as f64 / 1000_000_000.0)
} else {
format!("{:.2}MB", saved as f32 / 1000_000.0)
}
);
}
fn parse_user_date(date: &str) -> Result<DateArgs, &'static str> {
if date.contains("|") {
let dates: Vec<&str> = date.split("|").collect();
return Ok(DateArgs {
start: format_user_date(dates[0]),
stop: Some(format_user_date(dates[1])),
});
}
Ok(DateArgs {
start: format_user_date(date),
stop: None,
})
}
fn format_user_date(user_date: &str) -> i64 {
let date = if user_date.contains("T") {
user_date.to_string()
} else {
format!("{}T00:00:00", user_date)
};
NaiveDateTime::parse_from_str(&date, "%FT%T")
.map_or(Utc::now().timestamp() - TWO_DAYS_TIMESTAMP, |d| {
d.timestamp()
})
}