1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
mod data;
mod error;
mod proto;
mod membership;
mod table;
mod block;
mod object_table;
mod version_table;
mod api_server;
mod http_util;
mod rpc_client;
mod rpc_server;
mod server;
use std::collections::HashSet;
use std::net::SocketAddr;
use std::path::PathBuf;
use structopt::StructOpt;
use data::*;
use error::Error;
use proto::*;
use rpc_client::RpcClient;
#[derive(StructOpt, Debug)]
#[structopt(name = "garage")]
pub struct Opt {
/// RPC connect to this host to execute client operations
#[structopt(short = "h", long = "rpc-host", default_value = "127.0.0.1:3901")]
rpc_host: SocketAddr,
#[structopt(subcommand)]
cmd: Command,
}
#[derive(StructOpt, Debug)]
pub enum Command {
/// Run Garage server
#[structopt(name = "server")]
Server(ServerOpt),
/// Get network status
#[structopt(name = "status")]
Status,
/// Configure Garage node
#[structopt(name = "configure")]
Configure(ConfigureOpt),
}
#[derive(StructOpt, Debug)]
pub struct ServerOpt {
/// Configuration file
#[structopt(short = "c", long = "config", default_value = "./config.toml")]
config_file: PathBuf,
}
#[derive(StructOpt, Debug)]
pub struct ConfigureOpt {
/// Node to configure (prefix of hexadecimal node id)
node_id: String,
/// Location (datacenter) of the node
datacenter: String,
/// Number of tokens
n_tokens: u32,
}
#[tokio::main]
async fn main() {
let opt = Opt::from_args();
let rpc_cli = RpcClient::new();
let resp = match opt.cmd {
Command::Server(server_opt) => server::run_server(server_opt.config_file).await,
Command::Status => cmd_status(rpc_cli, opt.rpc_host).await,
Command::Configure(configure_opt) => {
cmd_configure(rpc_cli, opt.rpc_host, configure_opt).await
}
};
if let Err(e) = resp {
eprintln!("Error: {}", e);
}
}
async fn cmd_status(rpc_cli: RpcClient, rpc_host: SocketAddr) -> Result<(), Error> {
let status = match rpc_cli
.call(&rpc_host, &Message::PullStatus, DEFAULT_TIMEOUT)
.await?
{
Message::AdvertiseNodesUp(nodes) => nodes,
resp => return Err(Error::Message(format!("Invalid RPC response: {:?}", resp))),
};
let config = match rpc_cli
.call(&rpc_host, &Message::PullConfig, DEFAULT_TIMEOUT)
.await?
{
Message::AdvertiseConfig(cfg) => cfg,
resp => return Err(Error::Message(format!("Invalid RPC response: {:?}", resp))),
};
println!("Healthy nodes:");
for adv in status.iter() {
if let Some(cfg) = config.members.get(&adv.id) {
println!(
"{}\t{}\t{}\t{}",
hex::encode(&adv.id),
cfg.datacenter,
cfg.n_tokens,
adv.addr
);
}
}
let status_keys = status.iter().map(|x| x.id.clone()).collect::<HashSet<_>>();
if config
.members
.iter()
.any(|(id, _)| !status_keys.contains(id))
{
println!("\nFailed nodes:");
for (id, cfg) in config.members.iter() {
if !status.iter().any(|x| x.id == *id) {
println!("{}\t{}\t{}", hex::encode(&id), cfg.datacenter, cfg.n_tokens);
}
}
}
if status
.iter()
.any(|adv| !config.members.contains_key(&adv.id))
{
println!("\nUnconfigured nodes:");
for adv in status.iter() {
if !config.members.contains_key(&adv.id) {
println!("{}\t{}", hex::encode(&adv.id), adv.addr);
}
}
}
Ok(())
}
async fn cmd_configure(
rpc_cli: RpcClient,
rpc_host: SocketAddr,
args: ConfigureOpt,
) -> Result<(), Error> {
let status = match rpc_cli
.call(&rpc_host, &Message::PullStatus, DEFAULT_TIMEOUT)
.await?
{
Message::AdvertiseNodesUp(nodes) => nodes,
resp => return Err(Error::Message(format!("Invalid RPC response: {:?}", resp))),
};
let mut candidates = vec![];
for adv in status.iter() {
if hex::encode(&adv.id).starts_with(&args.node_id) {
candidates.push(adv.id.clone());
}
}
if candidates.len() != 1 {
return Err(Error::Message(format!(
"{} matching nodes",
candidates.len()
)));
}
let mut config = match rpc_cli
.call(&rpc_host, &Message::PullConfig, DEFAULT_TIMEOUT)
.await?
{
Message::AdvertiseConfig(cfg) => cfg,
resp => return Err(Error::Message(format!("Invalid RPC response: {:?}", resp))),
};
config.members.insert(
candidates[0].clone(),
NetworkConfigEntry {
datacenter: args.datacenter,
n_tokens: args.n_tokens,
},
);
config.version += 1;
rpc_cli
.call(
&rpc_host,
&Message::AdvertiseConfig(config),
DEFAULT_TIMEOUT,
)
.await?;
Ok(())
}
|
