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use std::io; use std::path::Path; use super::{lxc, Location}; /// An LXD container pub struct Container(String); impl Container { /// Create a new LXD container /// /// # Arguments /// /// * `location` - The location of the host /// * `name` - The name of the container /// * `base` - The base distribution to use, `ubuntu:16.04` for example /// /// # Return /// /// The newly created LXD container /// /// # Errors /// /// Errors that are encountered while creating will be returned /// /// # Example /// /// ``` /// use lxd::{Container, Location}; /// /// let mut container = Container::new(Location::Local, "test-new", "ubuntu:16.04").unwrap(); /// ``` pub fn new(location: Location, name: &str, base: &str) -> io::Result<Self> { let full_name = match location { Location::Local => format!("{}", name), Location::Remote(remote) => format!("{}:{}", remote, name) }; lxc(&["launch", base, &full_name, "-e", "-n", "lxdbr0"])?; // Hack to wait for network up and running lxc(&["exec", &full_name, "--mode=non-interactive", "-n", "--", "dhclient"])?; Ok(Container(full_name)) } /// Run a command in an LXD container /// /// # Arguments /// /// * `command` - An array of command arguments /// /// # Return /// /// An empty tuple on success /// /// # Errors /// /// Errors that are encountered while executing will be returned /// /// # Example /// /// ``` /// use lxd::{Container, Location}; /// /// let mut container = Container::new(Location::Local, "test-exec", "ubuntu:16.04").unwrap(); /// container.exec(&["echo", "hello"]).unwrap(); /// ``` pub fn exec(&mut self, command: &[&str]) -> io::Result<()> { let mut args = vec!["exec", &self.0, "--"]; for arg in command.as_ref().iter() { args.push(arg.as_ref()); } lxc(&args) } /// Mount a path in an LXD container /// /// # Arguments /// /// * `name` - The name of the mount /// * `source` - The source path to mount /// * `dest` - The destination of the mount /// /// # Return /// /// An empty tuple on success /// /// # Errors /// /// Errors that are encountered while mounting will be returned /// /// # Example /// /// ``` /// use lxd::{Container, Location}; /// /// let mut container = Container::new(Location::Local, "test-mount", "ubuntu:16.04").unwrap(); /// container.mount("source", ".", "/root/source").unwrap(); /// ``` pub fn mount<P: AsRef<Path>>(&mut self, name: &str, source: P, dest: &str) -> io::Result<()> { lxc(&["config", "device", "add", &self.0, name, "disk", &format!("source={}", source.as_ref().display()), &format!("path={}", dest)]) } /// Push a file to the LXD container /// /// # Arguments /// /// * `source` - The source of the file in the host /// * `dest` - The destination of the file in the container /// * `recursive` - The source is a directory /// /// # Return /// /// An empty tuple on success /// /// # Errors /// /// Errors that are encountered while mounting will be returned /// /// # Example /// /// ``` /// extern crate lxd; /// extern crate tempdir; /// /// use lxd::{Container, Location}; /// use tempdir::TempDir; /// /// fn main() { /// let mut container = Container::new(Location::Local, "test-push", "ubuntu:16.04").unwrap(); /// let tmp = TempDir::new("").unwrap(); /// container.push(tmp.path(), "/root", true).unwrap(); /// } /// ``` pub fn push<P: AsRef<Path>>(&mut self, source: P, dest: &str, recursive: bool) -> io::Result<()> { if recursive { lxc(&["file", "push", "-r", &format!("{}", source.as_ref().display()), &format!("{}/{}", self.0, dest)]) } else { lxc(&["file", "push", &format!("{}", source.as_ref().display()), &format!("{}/{}", self.0, dest)]) } } /// Pull a file from the LXD container /// /// # Arguments /// /// * `source` - The source of the file in the container /// * `dest` - The destination of the file in the host /// * `recursive` - The source is a directory /// /// # Return /// /// An empty tuple on success /// /// # Errors /// /// Errors that are encountered while mounting will be returned /// /// # Example /// /// ``` /// extern crate lxd; /// extern crate tempdir; /// /// use lxd::{Container, Location}; /// use tempdir::TempDir; /// /// fn main() { /// let mut container = Container::new(Location::Local, "test-pull", "ubuntu:16.04").unwrap(); /// container.exec(&["mkdir", "artifacts"]).unwrap(); /// let tmp = TempDir::new("").unwrap(); /// container.pull("/root/artifacts", tmp.path(), true).unwrap(); /// } /// ``` pub fn pull<P: AsRef<Path>>(&mut self, source: &str, dest: P, recursive: bool) -> io::Result<()> { if recursive { lxc(&["file", "pull", "-r", &format!("{}/{}", self.0, source), &format!("{}", dest.as_ref().display())]) } else { lxc(&["file", "pull", &format!("{}/{}", self.0, source), &format!("{}", dest.as_ref().display())]) } } } impl Drop for Container { fn drop(&mut self) { let _ = lxc(&["stop", &self.0]); } }