Large Code Rewrite
Added 2 API Endpoints for use with useSWR, removed the service and status fetching from getStaticProps, rewrote status fetching to use async (WIP, needs testing)
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Neshura
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3 changed files with 157 additions and 99 deletions
22
pages/api/containers.tsx
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22
pages/api/containers.tsx
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@ -0,0 +1,22 @@
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import fsPromises from 'fs/promises'
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import path from 'path'
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import { Service, ServiceStatus } from '../../interfaces/LinkTypes';
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export default async function ServicesAPI(req: any, res: any) {
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try {
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var Docker = require('dockerode');
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const options = {
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socketPath: '/var/run/docker.sock',
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path: '/v1.41/containers/json'
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};
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var docker = new Docker({ socketPath: options.socketPath });
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const list = await docker.listContainers({ all: true })
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res.status(200).json(list);
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}
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catch (error) {
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console.log(error);
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res.status(500).json({ error: 'Error reading data' });
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}
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}
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21
pages/api/services.tsx
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pages/api/services.tsx
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@ -0,0 +1,21 @@
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import fsPromises from 'fs/promises'
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import path from 'path'
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import { Service, ServiceStatus } from '../../interfaces/LinkTypes';
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export default async function ServicesAPI(req: any, res: any) {
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try {
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const filePath = path.join(process.cwd(), '/public/pages.json')
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const data = await fsPromises.readFile(filePath)
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.then((file) => JSON.parse(file.toString()));
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data.services.forEach((service: Service) => {
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service.status = ServiceStatus.loading;
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});
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res.status(200).json(data.services);
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}
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catch (error) {
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console.log(error);
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res.status(500).json({ error: 'Error reading data' });
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}
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}
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@ -1,20 +1,50 @@
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import Head from 'next/head'
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import Link from 'next/link'
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import styles from '/styles/Home.module.css'
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import fsPromises from 'fs/promises'
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import path, { resolve } from 'path'
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import type { CustomLink, LinkList } from '../interfaces/LinkTypes'
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import { Service, CustomLink, EntryList, ServiceStatus, ServiceType, ServiceLocation } from '../interfaces/LinkTypes'
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import Dockerode from 'dockerode';
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import { ReactElement, useEffect, useState } from 'react'
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import useSWR, { KeyedMutator } from 'swr';
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const fetcher = (url: string) => fetch(url).then((res) => res.json())
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function Services(props: LinkList) {
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const serviceList = props.services
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//function Services(props: EntryList) {
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const Services = () => {
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const { serviceList, isLoading, isError } = useServices();
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let content: ReactElement = <></>;
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// TODO: look into asyncing this as well
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useStatus(serviceList);
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if (isError) {
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content = <div className={styles.grid}>Error Loading data</div>
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}
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else if (isLoading) {
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content = <div className={styles.grid}>Loading..</div>
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}
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else if (serviceList) {
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content =
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<div className={styles.grid}>
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{serviceList.map((item: Service) => (
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<Link key={item.name} href={item.href}>
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<a className={styles.contentcard}>
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<div className={styles.contenttitle}><h2>{item.name}</h2></div>
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<div className={item.status === ServiceStatus.online ? styles.contentonline : styles.contentoffline}>{item.status}</div>
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<div><p>{item.desc}</p></div>
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<div className={styles.cardwarn}><p>{item.warn}</p></div>
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</a>
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</Link>
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))}
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</div>
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}
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return (
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<>
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<Head>
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<title>Neshura Servers</title>
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<meta charSet='utf-8' />
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<link rel="icon" href="/favicon.ico" />
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<meta name="description" content="Lists all available Services, most likely up-to-date" />
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</Head>
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<h1 className={styles.title}>
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@ -24,75 +54,62 @@ function Services(props: LinkList) {
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<p className={styles.description}>
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Lists all available Services, most likely up-to-date
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</p>
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<div className={styles.grid}>
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{serviceList.map((item: CustomLink) => (
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<Link key={item.name} href={item.href}>
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<a className={styles.contentcard}>
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<div className={styles.contenttitle}><h2>{item.name}</h2></div>
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<div className={item.status == "Online" ? styles.contentonline : styles.contentoffline}>{item.status}</div>
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<div><p>{item.desc}</p></div>
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<div className={styles.cardwarn}><p>{item.warn}</p></div>
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</a>
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</Link>
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))}
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</div>
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{content}
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</>
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)
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}
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// Gets a List of all services specified in /public/pages.json
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export async function getServerSideProps() {
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const filePath = path.join(process.cwd(), '/public/pages.json')
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// TODO: look into asyncing this API call
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const jsonData = await fsPromises.readFile(filePath)
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const list = JSON.parse(jsonData.toString())
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for (let index = 0; index < list.services.length; index++) {
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// TODO: look into asyncing this as well
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await status(list.services[index]);
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function useStatus(serviceList: Service[] | undefined) {
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const { data, error } = useSWR('/api/containers', fetcher);
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if (data && serviceList) {
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serviceList.forEach((service: Service) => {
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getStatus(data, service);
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})
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}
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else if (error) {
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console.log(error);
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}
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return { props: list }
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}
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// reversing this to loop over given entries for every found container would probably improve latency
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async function status(entry: CustomLink) {
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function useServices(): { serviceList: Service[] | undefined, isLoading: boolean, isError: boolean } {
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const { data, error } = useSWR('/api/services', fetcher);
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return {
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serviceList: data,
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isLoading: !error && !data,
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isError: error
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};
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}
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function getStatus(containers: Dockerode.ContainerInfo[], entry: Service) {
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// for now only the BRR7-4800U can be used with Docker, needs changing once more Servers are used
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// TODO: support multiple locations for docker
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if (entry.location === "brr7-4800u") {
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if (entry.location === ServiceLocation.brr7_4800u) {
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// app in this context means any non-docker page
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if (entry.type === "app") {
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let data = new Response();
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try {
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await fetch(entry.href).then((response: Response) => data = response);
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}
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catch (e) {
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console.log(e)
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return (entry.status = "Offline");
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}
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if (entry.type === ServiceType.app) {
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fetch(entry.href)
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.then((data: Response) => {
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if (data.ok) {
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if (data.status == 200 || data.status == 301 || data.status == 302) {
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return (entry.status = "Online");
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entry.status = ServiceStatus.online;
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}
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else return (entry.status = "Offline");
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else {
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entry.status = ServiceStatus.offline;
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}
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else return (entry.status = "Offline");
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}
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else {
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entry.status = ServiceStatus.offline;
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}
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})
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.catch(error => {
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console.log(error);
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entry.status = ServiceStatus.error;
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});
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}
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else if (entry.type === "docker") {
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var Docker = require('dockerode');
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// TODO: read these paths from some config instead of hardcoding them
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const options = {
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socketPath: '/var/run/docker.sock',
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path: '/v1.41/containers/json'
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};
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var docker = new Docker({ socketPath: options.socketPath });
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// default is set as Offline, prevents uncaught cases without set status
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entry.status = "Offline";
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// TODO: async possible?
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await docker.listContainers({all: true}).then(
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((containers: Dockerode.ContainerInfo[]) => {
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entry.status = ServiceStatus.offline;
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// Loop over every found container and compare to the entry provided
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containers.forEach((element: Dockerode.ContainerInfo) => {
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element.Names.forEach((containerName: string) => {
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@ -100,40 +117,38 @@ async function status(entry: CustomLink) {
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containerName = containerName.substring(1);
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}
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if (containerName === entry.docker_container_name) {
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entry.status = "Online";
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entry.status = ServiceStatus.online;
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}
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});
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if (entry.docker_container_name == null) {
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console.log("MISSING DOCKER CONTAINER NAME FOR " + entry.name);
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entry.status = "ERROR";
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entry.status = ServiceStatus.error;
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}
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});
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})
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);
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}
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else { entry.status = "ERROR" }
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return;
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else { entry.status = ServiceStatus.error }
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}
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// for non-local locations pinging can be used to see if they're up
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else if (entry.location != "") {
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let data: Response;
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try {
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data = await fetch(entry.href);
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}
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catch (e) {
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console.log(e)
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return (entry.status = "Offline");
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}
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else if (entry.location === ServiceLocation.other) {
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fetch(entry.href)
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.then((data) => {
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if (data.ok) {
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if (data.status == 200 || data.status == 301 || data.status == 302) {
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return (entry.status = "Online");
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return (entry.status = ServiceStatus.online);
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}
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else return (entry.status = "Offline");
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else (entry.status = ServiceStatus.offline);
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}
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else return (entry.status = "Offline");
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else {
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entry.status = ServiceStatus.offline;
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}
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else { return (entry.status = "ERROR") }
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})
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.catch((error) => {
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console.log(error);
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entry.status = ServiceStatus.error;
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});
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}
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else { entry.status = ServiceStatus.error }
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return;
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}
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export default Services
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