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use crate::utils::{err_handler, name_query, print_table};
use rusoto_core::Region;
use rusoto_ec2::{DescribeInstancesRequest, Ec2, Ec2Client};
use structopt::StructOpt;
#[derive(Debug, StructOpt)]
pub enum InstanceOpt {
#[structopt(visible_alias = "ids", about = "search instance ids with query.")]
InstanceIds(SearchQueryOpt),
#[structopt(visible_alias = "prips", about = "search private ips with query.")]
PrivateIps(SearchQueryOpt),
#[structopt(visible_alias = "prdns", about = "search private ips with query.")]
PrivateDNS(SearchQueryOpt),
#[structopt(about = "search instance basic info with query.")]
Info(SearchQueryOpt),
}
#[derive(Debug, StructOpt)]
pub struct SearchQueryOpt {
#[structopt(
short = "q",
long,
conflicts_with("exact_query"),
help = "ambiguous search with asterisk on tag name. if set comma, search OR"
)]
query: Option<String>,
#[structopt(
short,
long = "exq",
conflicts_with("query"),
help = "search by tag name exactly"
)]
exact_query: Option<String>,
#[structopt(long, help = "query with instance ids. `i-` can be omitted")]
ids: Option<String>,
}
pub async fn matcher(opt: InstanceOpt) {
match opt {
InstanceOpt::Info(opt) => info(opt).await,
InstanceOpt::InstanceIds(opt) => instance_ids(opt).await,
InstanceOpt::PrivateIps(opt) => instance_private_ips(opt).await,
InstanceOpt::PrivateDNS(opt) => instance_private_dns(opt).await,
}
}
async fn info(opt: SearchQueryOpt) {
let instances = get_instances(&opt).await;
let len = instances.len();
let rows: Vec<Vec<String>> = instances
.into_iter()
.map(|i| vec![i.id, i.name, i.status, i.instance_type])
.collect();
print_table(vec!["ID", "Name", "Status", "Type"], rows);
println!("counts: {}", len);
}
async fn instance_ids(opt: SearchQueryOpt) {
let instances = get_instances(&opt).await;
let len = instances.len();
let rows: Vec<Vec<String>> = instances.into_iter().map(|i| vec![i.id, i.name]).collect();
print_table(vec!["ID", "Name"], rows);
println!("counts: {}", len);
}
async fn instance_private_ips(opt: SearchQueryOpt) {
let instances = get_instances(&opt).await;
let len = instances.len();
let rows: Vec<Vec<String>> = instances
.into_iter()
.map(|i| vec![i.private_ip.unwrap_or_default(), i.name])
.collect();
print_table(vec!["Private IP", "Name"], rows);
println!("counts: {}", len);
}
async fn instance_private_dns(opt: SearchQueryOpt) {
let instances = get_instances(&opt).await;
let len = instances.len();
let rows: Vec<Vec<String>> = instances
.into_iter()
.map(|i| vec![i.private_dns.unwrap_or_default(), i.name])
.collect();
print_table(vec!["Private DNS", "Name"], rows);
println!("counts: {}", len);
}
struct Instance {
id: String,
name: String,
instance_type: String,
status: String,
private_ip: Option<String>,
private_dns: Option<String>,
}
async fn get_instances(opt: &SearchQueryOpt) -> Vec<Instance> {
let ec2 = Ec2Client::new(Region::ApNortheast1);
let req = DescribeInstancesRequest {
filters: name_query(&opt.query, &opt.exact_query).map(|i| {
vec![rusoto_ec2::Filter {
name: Some("tag:Name".to_string()),
values: Some(i),
}]
}),
instance_ids: id_query(opt),
dry_run: None,
max_results: None,
next_token: None,
};
match ec2.describe_instances(req).await {
Ok(res) => {
let instances = res
.reservations
.into_iter()
.flat_map(|v| v.into_iter().flat_map(|r| r.instances.unwrap_or_default()));
instances
.map(|i| Instance {
name: name(&i),
id: i.instance_id.unwrap_or_default(),
status: i.state.map(|i| i.name).flatten().unwrap_or_default(),
instance_type: i.instance_type.unwrap_or_default(),
private_ip: i.private_ip_address,
private_dns: i.private_dns_name,
})
.collect::<Vec<_>>()
}
Err(err) => panic!(err_handler(err)),
}
}
fn id_query(opt: &SearchQueryOpt) -> Option<Vec<String>> {
fn add_i(s: &str) -> String {
if !s.contains("i-") {
"i-".to_string() + s
} else {
s.to_string()
}
}
opt.ids
.as_ref()
.map(|q| q.split(',').map(|s| add_i(s)).collect())
}
#[test]
fn test_id_query() {
let opt = SearchQueryOpt {
query: None,
exact_query: None,
ids: Some("1234".to_string()),
};
assert_eq!(id_query(&opt), Some(vec!["i-1234".to_string()]));
let opt = SearchQueryOpt {
query: None,
exact_query: None,
ids: Some("i-1234".to_string()),
};
assert_eq!(id_query(&opt), Some(vec!["i-1234".to_string()]));
let opt = SearchQueryOpt {
query: None,
exact_query: None,
ids: Some("i-1234,3333".to_string()),
};
assert_eq!(
id_query(&opt),
Some(vec!["i-1234".to_string(), "i-3333".to_string()])
);
}
fn name(i: &rusoto_ec2::Instance) -> String {
i.tags
.as_ref()
.unwrap()
.iter()
.find(|t| t.key == Some("Name".to_string()))
.map(|t| t.value.as_ref().unwrap())
.unwrap()
.to_string()
}