tsiry-sandratraina.com
Prepare, configure, and manage Firecracker microVMs in seconds!
virtualization
linux
microvm
firecracker
1use anyhow::Error;
2
3use crate::date::{format_duration_ago, format_status};
4
5pub async fn list_all_instances(all: bool) -> Result<(), Error> {
6 let pool = firecracker_state::create_connection_pool().await?;
7 let mut vms = firecracker_state::repo::virtual_machine::all(&pool).await?;
8 if !all {
9 vms = vms
10 .into_iter()
11 .filter(|vm| vm.status == "RUNNING")
12 .collect::<Vec<_>>();
13 }
14
15 if vms.is_empty() {
16 println!("No Firecracker MicroVM instances found.");
17 return Ok(());
18 }
19 let distro_length = vms.iter().map(|vm| vm.distro.len()).max().unwrap_or(10) + 2;
20 let name_length = vms
21 .iter()
22 .map(|vm| vm.name.len())
23 .max()
24 .unwrap_or(10)
25 .max(10)
26 + 2;
27 let vcpu_length = vms
28 .iter()
29 .map(|vm| vm.vcpu.to_string().len())
30 .max()
31 .unwrap_or(10)
32 + 2;
33 let memory_length = vms
34 .iter()
35 .map(|vm| format!("{} MiB", vm.memory).len())
36 .max()
37 .unwrap_or(10)
38 + 2;
39 let status_length = vms
40 .iter()
41 .map(|vm| format_status(&vm.status, vm.updated_at).len())
42 .max()
43 .unwrap_or(10);
44 let pid_length = vms
45 .iter()
46 .map(|vm| vm.pid.unwrap_or(0).to_string().len())
47 .max()
48 .unwrap_or(10)
49 + 2;
50 let ip_length = vms
51 .iter()
52 .map(|vm| vm.ip_address.clone().unwrap_or_default().len())
53 .max()
54 .unwrap_or(10)
55 + 2;
56 let created_length = vms
57 .iter()
58 .map(|vm| format_duration_ago(vm.created_at).len())
59 .max()
60 .unwrap_or(10)
61 + 2;
62
63 println!(
64 "{:<name_length$} {:<distro_length$} {:<vcpu_length$} {:<memory_length$} {:<status_length$} {:<pid_length$} {:<ip_length$} {:<created_length$}",
65 "NAME", "IMAGE", "VCPU", "MEMORY", "STATUS", "PID", "IP", "CREATED"
66 );
67 for vm in vms {
68 println!(
69 "{:<name_length$} {:<distro_length$} {:<vcpu_length$} {:<memory_length$} {:<status_length$} {:<pid_length$} {:<ip_length$} {:<created_length$}",
70 vm.name,
71 vm.distro,
72 vm.vcpu,
73 format!("{} MiB", vm.memory),
74 format_status(&vm.status, vm.updated_at),
75 vm.pid.unwrap_or(0),
76 vm.ip_address.unwrap_or_default(),
77 format_duration_ago(vm.created_at),
78 );
79 }
80
81 Ok(())
82}