DeployScript/deploy.ts

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2022-11-01 11:52:44 +09:00
#!/usr/bin/env -S /home/jaeung/.deno/bin/deno run --allow-env --allow-read --unstable --allow-sys --allow-run --allow-write
import { printf } from "https://deno.land/std@0.158.0/fmt/printf.ts";
import {brightGreen, brightMagenta} from "https://deno.land/std@0.160.0/fmt/colors.ts";
import { Command } from "https://deno.land/x/cliffy@v0.25.2/command/mod.ts";
interface DeployedService{
name: string,
port: number
}
async function saveService(services: DeployedService[]){
const content = JSON.stringify(services);
await Deno.writeTextFile("services.json", content);
}
async function loadService(): Promise<DeployedService[]> {
try {
const content = await Deno.readTextFile("services.json");
return JSON.parse(content);
} catch (error) {
if(error instanceof Deno.errors.NotFound){
return [];
}
else{
throw error;
}
}
}
interface NginxConfigOption {
port: number,
name: string,
/**
* megabyte unit
*/
clientMaxBodySize?: number,
/**
* proxy pass
* @default "127.0.0.1"
*/
proxyPass?: string,
/**
* socket IO support
* @default true
*/
socketIO?: boolean,
}
function createNginxConfigContent({ port, name, clientMaxBodySize, proxyPass, socketIO }: NginxConfigOption) {
clientMaxBodySize ??= 20;
proxyPass ??= "127.0.0.1";
socketIO ??= true;
const content = `# it created by deploy script.
server {
server_name ${name}.prelude.duckdns.org;
location /{
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Scheme $scheme;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_set_header X-NginX-Proxy true;
proxy_pass http://${proxyPass}:${port};
proxy_redirect off;
# client body size
client_max_body_size ${clientMaxBodySize}M;
${ socketIO ?
`# Socket.IO Support
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";` : ""
}
}
listen 80;
}`;
return content;
}
function isRunAsRoot() {
return Deno.uid() == 0;
}
async function NginxCheck() {
const p = Deno.run({
cmd: ["nginx", "-t"]
});
const status = (await p.status())
return status.success && status.code == 0;
}
async function NginxReload() {
const p = Deno.run({
cmd: ["nginx", "-s","reload"]
});
const status = (await p.status())
return status.success && status.code == 0;
}
if (import.meta.main) {
const cmd = new Command()
.name("deployNginx")
.version("1.0.1")
.description("CLI")
.action(()=>{
console.log("sub command required");
})
.command("deploy", "deploy app")
.option("-p, --port <port:number>","port for app",{
required: true
})
.option("--disableSocket","disable socket io")
.option("--clientMaxBodySize <clientMaxBodySize:number>","client max body size: MB Unit",{
default: 20
})
.option("--proxy <proxy:string>","proxy pass for app")
.arguments("<value:string>")
.action(async (options, name)=>{
const deployPort = options.port;
const deployName = name;
if(deployName.includes("/")){
console.log("name invalid");
return;
}
if(!isRunAsRoot()){
console.log("Warning! It's not executed as root");
}
else{
console.log("run as root");
}
const services = await loadService();
const dir = [...Deno.readDirSync("/etc/nginx/sites-available")]
if (dir.map(x => x.name).includes(deployName)) {
console.log("duplicate!")
Deno.exit(1);
}
const proxyPass = options.proxy;
const socketIO = !options.disableSocket;
const content = createNginxConfigContent({
port: deployPort,
name: deployName,
proxyPass: proxyPass,
socketIO: socketIO,
clientMaxBodySize: options.clientMaxBodySize
});
await Deno.writeTextFile("/etc/nginx/sites-available/"+deployName,content);
await Deno.symlink("/etc/nginx/sites-available/"+deployName,"/etc/nginx/sites-enabled/"+deployName);
if(services.map(x=>x.name).includes(deployName)){
const target = services.find(x=>x.name == deployName);
if(target){
target.port = deployPort;
}
}
else {
services.push({
name: deployName,
port: deployPort,
});
}
await saveService(services);
if(!await NginxCheck()){
console.log("nginx config grammar failed");
Deno.exit(1);
}
if(!await NginxReload()){
console.log("nginx reload failed");
Deno.exit(1);
}
})
.command("undeploy","undeploy app")
.arguments("<value:string>")
.action(async (_,name)=>{
const services = await loadService();
const i = services.findIndex(x=>x.name == name);
if(i < 0){
console.log("not deployed");
Deno.exit(1);
}
services.splice(i,1);
await Deno.remove("/etc/nginx/sites-enabled/"+name);
await Deno.remove("/etc/nginx/sites-available/"+name);
await saveService(services);
if(!await NginxReload()){
console.log("error! nginx reload failed");
Deno.exit(1);
}
console.log(`success to unload ${name}`);
})
.command("list","list deployed service")
.action(async ()=>{
const services = await loadService();
if(!Deno.isatty(Deno.stdout.rid)){
for (const service of services) {
printf("%s %s\n",service.name, service.port.toString());
}
}
else {
const maxServiceNameLength = services.length == 0 ? 0 : services.map(x=>x.name.length).reduce((x,y)=>Math.max(x,y));
const maxPadLength = Math.max(6,maxServiceNameLength);
const prettyPrint = (name: string, port: string) => {
printf("%s %s\n",brightGreen(name) + " ".repeat(maxPadLength - name.length),
brightMagenta(port.padStart(5 - port.length)));
}
prettyPrint("NAME","PORT");
for (const service of services) {
prettyPrint(service.name,service.port.toString());
}
}
});
await cmd.parse(Deno.args);
}