Merge bd719d9987 into 459fb138f2

Introduces Docker service availability to monitor uptime
and status of Docker services alongside existing types.
Updates the database schema to support "docker_service".
Enhances the user interface to allow configuration of Docker
service parameters within the monitor setup.

This change allows for more granular monitoring capabilities
by checking the running state of services in a Docker environment.

Relates to implementing extended Docker monitoring functionalities.

implements #5214

Signed-off-by: Bryan Gonzalez <bryan@battleface.com>

README.md

@@ -23,7 +23,7 @@ It is a temporary live demo, all data will be deleted after 10 minutes. Sponsore
 
 ## ⭐ Features
 
-- Monitoring uptime for HTTP(s) / TCP / HTTP(s) Keyword / HTTP(s) Json Query / Ping / DNS Record / Push / Steam Game Server / Docker Containers
+- Monitoring uptime for HTTP(s) / TCP / HTTP(s) Keyword / HTTP(s) Json Query / Ping / DNS Record / Push / Steam Game Server / Docker Containers / Docker Services
 - Fancy, Reactive, Fast UI/UX
 - Notifications via Telegram, Discord, Gotify, Slack, Pushover, Email (SMTP), and [90+ notification services, click here for the full list](https://github.com/louislam/uptime-kuma/tree/master/src/components/notifications)
 - 20-second intervals

db/knex_migrations/2024-10-17-0000-add-docker-service.js

@@ -0,0 +1,11 @@
+exports.up = function (knex) {
+    return knex.schema.alterTable("monitor", function (table) {
+        table.string("docker_service", 255);
+    });
+};
+
+exports.down = function (knex) {
+    return knex.schema.alterTable("monitor", function (table) {
+        table.dropColumn("docker_service");
+    });
+};

docker/debian-base.dockerfile

@@ -1,3 +1,13 @@
+# Download Apprise deb package
+FROM node:20-bookworm-slim AS download-apprise
+WORKDIR /app
+COPY ./extra/download-apprise.mjs ./download-apprise.mjs
+RUN apt update && \
+    apt --yes --no-install-recommends install curl && \
+    npm install cheerio semver && \
+    node ./download-apprise.mjs
+
+# Base Image (Slim)
 # If the image changed, the second stage image should be changed too
 FROM node:20-bookworm-slim AS base2-slim
 ARG TARGETPLATFORM
@@ -27,8 +37,9 @@ RUN apt update && \
 # apprise = for notifications (Install from the deb package, as the stable one is too old) (workaround for #4867)
 # Switching to testing repo is no longer working, as the testing repo is not bookworm anymore.
 # python3-paho-mqtt (#4859)
-RUN curl http://ftp.debian.org/debian/pool/main/a/apprise/apprise_1.8.0-2_all.deb --output apprise.deb && \
-    apt update && \
+# TODO: no idea how to delete the deb file after installation as it becomes a layer already
+COPY --from=download-apprise /app/apprise.deb ./apprise.deb
+RUN apt update && \
     apt --yes --no-install-recommends install ./apprise.deb python3-paho-mqtt && \
     rm -rf /var/lib/apt/lists/* && \
     rm -f apprise.deb && \

extra/download-apprise.mjs

@@ -0,0 +1,57 @@
+// Go to http://ftp.debian.org/debian/pool/main/a/apprise/ using fetch api, where it is a apache directory listing page
+// Use cheerio to parse the html and get the latest version of Apprise
+// call curl to download the latest version of Apprise
+// Target file: the latest version of Apprise, which the format is apprise_{VERSION}_all.deb
+
+import * as cheerio from "cheerio";
+import semver from "semver";
+import * as childProcess from "child_process";
+
+const baseURL = "http://ftp.debian.org/debian/pool/main/a/apprise/";
+const response = await fetch(baseURL);
+
+if (!response.ok) {
+    throw new Error("Failed to fetch page of Apprise Debian repository.");
+}
+
+const html = await response.text();
+
+const $ = cheerio.load(html);
+
+// Get all the links in the page
+const linkElements = $("a");
+
+// Filter the links which match apprise_{VERSION}_all.deb
+const links = [];
+const pattern = /apprise_(.*?)_all.deb/;
+
+for (let i = 0; i < linkElements.length; i++) {
+    const link = linkElements[i];
+    if (link.attribs.href.match(pattern) && !link.attribs.href.includes("~")) {
+        links.push({
+            filename: link.attribs.href,
+            version: link.attribs.href.match(pattern)[1],
+        });
+    }
+}
+
+console.log(links);
+
+// semver compare and download
+let latestLink = {
+    filename: "",
+    version: "0.0.0",
+};
+
+for (const link of links) {
+    if (semver.gt(link.version, latestLink.version)) {
+        latestLink = link;
+    }
+}
+
+const downloadURL = baseURL + latestLink.filename;
+console.log(`Downloading ${downloadURL}...`);
+let result = childProcess.spawnSync("curl", [ downloadURL, "--output", "apprise.deb" ]);
+console.log(result.stdout?.toString());
+console.error(result.stderr?.toString());
+process.exit(result.status !== null ? result.status : 1);

extra/reset-migrate-aggregate-table-state.js

@@ -0,0 +1,24 @@
+const { R } = require("redbean-node");
+const Database = require("../server/database");
+const args = require("args-parser")(process.argv);
+const { Settings } = require("../server/settings");
+
+const main = async () => {
+    console.log("Connecting the database");
+    Database.initDataDir(args);
+    await Database.connect(false, false, true);
+
+    console.log("Deleting all data from aggregate tables");
+    await R.exec("DELETE FROM stat_minutely");
+    await R.exec("DELETE FROM stat_hourly");
+    await R.exec("DELETE FROM stat_daily");
+
+    console.log("Resetting the aggregate table state");
+    await Settings.set("migrateAggregateTableState", "");
+
+    await Database.close();
+    console.log("Done");
+};
+
+main();
+

package.json

@@ -38,8 +38,8 @@
         "build-docker-base": "docker buildx build -f docker/debian-base.dockerfile --platform linux/amd64,linux/arm64,linux/arm/v7 -t louislam/uptime-kuma:base2 --target base2 . --push",
         "build-docker-base-slim": "docker buildx build -f docker/debian-base.dockerfile --platform linux/amd64,linux/arm64,linux/arm/v7 -t louislam/uptime-kuma:base2-slim --target base2-slim . --push",
         "build-docker-builder-go": "docker buildx build -f docker/builder-go.dockerfile --platform linux/amd64,linux/arm64,linux/arm/v7 -t louislam/uptime-kuma:builder-go . --push",
-        "build-docker-slim": "node ./extra/env2arg.js docker buildx build -f docker/dockerfile --platform linux/amd64,linux/arm64,linux/arm/v7 -t louislam/uptime-kuma:2-slim -t louislam/uptime-kuma:$VERSION-slim --target release --build-arg BASE_IMAGE=louislam/uptime-kuma:base2-slim . --push",
-        "build-docker-full": "node ./extra/env2arg.js docker buildx build -f docker/dockerfile --platform linux/amd64,linux/arm64,linux/arm/v7 -t louislam/uptime-kuma:2 -t louislam/uptime-kuma:$VERSION --target release . --push",
+        "build-docker-slim": "node ./extra/env2arg.js docker buildx build -f docker/dockerfile --platform linux/amd64,linux/arm64,linux/arm/v7 -t louislam/uptime-kuma:next-slim -t louislam/uptime-kuma:2-slim -t louislam/uptime-kuma:$VERSION-slim --target release --build-arg BASE_IMAGE=louislam/uptime-kuma:base2-slim . --push",
+        "build-docker-full": "node ./extra/env2arg.js docker buildx build -f docker/dockerfile --platform linux/amd64,linux/arm64,linux/arm/v7 -t louislam/uptime-kuma:next -t louislam/uptime-kuma:2 -t louislam/uptime-kuma:$VERSION --target release . --push",
         "build-docker-nightly": "node ./extra/test-docker.js && npm run build && docker buildx build -f docker/dockerfile --platform linux/amd64,linux/arm64,linux/arm/v7 -t louislam/uptime-kuma:nightly2 --target nightly . --push",
         "build-docker-slim-rootless": "node ./extra/env2arg.js docker buildx build -f docker/dockerfile --platform linux/amd64,linux/arm64,linux/arm/v7 -t louislam/uptime-kuma:2-slim-rootless -t louislam/uptime-kuma:$VERSION-slim-rootless --target rootless --build-arg BASE_IMAGE=louislam/uptime-kuma:base2-slim . --push",
         "build-docker-full-rootless": "node ./extra/env2arg.js docker buildx build -f docker/dockerfile --platform linux/amd64,linux/arm64,linux/arm/v7 -t louislam/uptime-kuma:2-rootless -t louislam/uptime-kuma:$VERSION-rootless --target rootless . --push",
@@ -68,7 +68,8 @@
         "sort-contributors": "node extra/sort-contributors.js",
         "quick-run-nightly": "docker run --rm --env NODE_ENV=development -p 3001:3001 louislam/uptime-kuma:nightly2",
         "start-dev-container": "cd docker && docker-compose -f docker-compose-dev.yml up --force-recreate",
-        "rebase-pr-to-1.23.X": "node extra/rebase-pr.js 1.23.X"
+        "rebase-pr-to-1.23.X": "node extra/rebase-pr.js 1.23.X",
+        "reset-migrate-aggregate-table-state": "node extra/reset-migrate-aggregate-table-state.js"
     },
     "dependencies": {
         "@grpc/grpc-js": "~1.8.22",

server/database.js

@@ -6,6 +6,9 @@ const knex = require("knex");
 const path = require("path");
 const { EmbeddedMariaDB } = require("./embedded-mariadb");
 const mysql = require("mysql2/promise");
+const { Settings } = require("./settings");
+const { UptimeCalculator } = require("./uptime-calculator");
+const dayjs = require("dayjs");
 
 /**
  * Database & App Data Folder
@@ -391,9 +394,23 @@ class Database {
         // https://knexjs.org/guide/migrations.html
         // https://gist.github.com/NigelEarle/70db130cc040cc2868555b29a0278261
         try {
+            // Disable foreign key check for SQLite
+            // Known issue of knex: https://github.com/drizzle-team/drizzle-orm/issues/1813
+            if (Database.dbConfig.type === "sqlite") {
+                await R.exec("PRAGMA foreign_keys = OFF");
+            }
+
             await R.knex.migrate.latest({
                 directory: Database.knexMigrationsPath,
             });
+
+            // Enable foreign key check for SQLite
+            if (Database.dbConfig.type === "sqlite") {
+                await R.exec("PRAGMA foreign_keys = ON");
+            }
+
+            await this.migrateAggregateTable();
+
         } catch (e) {
             // Allow missing patch files for downgrade or testing pr.
             if (e.message.includes("the following files are missing:")) {
@@ -711,6 +728,152 @@ class Database {
         }
     }
 
+    /**
+     * Migrate the old data in the heartbeat table to the new format (stat_daily, stat_hourly, stat_minutely)
+     * It should be run once while upgrading V1 to V2
+     *
+     * Normally, it should be in transaction, but UptimeCalculator wasn't designed to be in transaction before that.
+     * I don't want to heavily modify the UptimeCalculator, so it is not in transaction.
+     * Run `npm run reset-migrate-aggregate-table-state` to reset, in case the migration is interrupted.
+     * @returns {Promise<void>}
+     */
+    static async migrateAggregateTable() {
+        log.debug("db", "Enter Migrate Aggregate Table function");
+
+        // Add a setting for 2.0.0-dev users to skip this migration
+        if (process.env.SET_MIGRATE_AGGREGATE_TABLE_TO_TRUE === "1") {
+            log.warn("db", "SET_MIGRATE_AGGREGATE_TABLE_TO_TRUE is set to 1, skipping aggregate table migration forever (for 2.0.0-dev users)");
+            await Settings.set("migrateAggregateTableState", "migrated");
+        }
+
+        let migrateState = await Settings.get("migrateAggregateTableState");
+
+        // Skip if already migrated
+        // If it is migrating, it possibly means the migration was interrupted, or the migration is in progress
+        if (migrateState === "migrated") {
+            log.debug("db", "Migrated aggregate table already, skip");
+            return;
+        } else if (migrateState === "migrating") {
+            log.warn("db", "Aggregate table migration is already in progress, or it was interrupted");
+            throw new Error("Aggregate table migration is already in progress");
+        }
+
+        await Settings.set("migrateAggregateTableState", "migrating");
+
+        log.info("db", "Migrating Aggregate Table");
+
+        log.info("db", "Getting list of unique monitors");
+
+        // Get a list of unique monitors from the heartbeat table, using raw sql
+        let monitors = await R.getAll(`
+            SELECT DISTINCT monitor_id
+            FROM heartbeat
+            ORDER BY monitor_id ASC
+        `);
+
+        // Stop if stat_* tables are not empty
+        for (let table of [ "stat_minutely", "stat_hourly", "stat_daily" ]) {
+            let countResult = await R.getRow(`SELECT COUNT(*) AS count FROM ${table}`);
+            let count = countResult.count;
+            if (count > 0) {
+                log.warn("db", `Aggregate table ${table} is not empty, migration will not be started (Maybe you were using 2.0.0-dev?)`);
+                return;
+            }
+        }
+
+        let progressPercent = 0;
+        let part = 100 / monitors.length;
+        let i = 1;
+        for (let monitor of monitors) {
+            // Get a list of unique dates from the heartbeat table, using raw sql
+            let dates = await R.getAll(`
+                SELECT DISTINCT DATE(time) AS date
+                FROM heartbeat
+                WHERE monitor_id = ?
+                ORDER BY date ASC
+            `, [
+                monitor.monitor_id
+            ]);
+
+            for (let date of dates) {
+                // New Uptime Calculator
+                let calculator = new UptimeCalculator();
+                calculator.monitorID = monitor.monitor_id;
+                calculator.setMigrationMode(true);
+
+                // Get all the heartbeats for this monitor and date
+                let heartbeats = await R.getAll(`
+                    SELECT status, ping, time
+                    FROM heartbeat
+                    WHERE monitor_id = ?
+                    AND DATE(time) = ?
+                    ORDER BY time ASC
+                `, [ monitor.monitor_id, date.date ]);
+
+                if (heartbeats.length > 0) {
+                    log.info("db", `[DON'T STOP] Migrating monitor data ${monitor.monitor_id} - ${date.date} [${progressPercent.toFixed(2)}%][${i}/${monitors.length}]`);
+                }
+
+                for (let heartbeat of heartbeats) {
+                    await calculator.update(heartbeat.status, parseFloat(heartbeat.ping), dayjs(heartbeat.time));
+                }
+
+                progressPercent += (Math.round(part / dates.length * 100) / 100);
+
+                // Lazy to fix the floating point issue, it is acceptable since it is just a progress bar
+                if (progressPercent > 100) {
+                    progressPercent = 100;
+                }
+            }
+
+            i++;
+        }
+
+        await Database.clearHeartbeatData(true);
+
+        await Settings.set("migrateAggregateTableState", "migrated");
+
+        if (monitors.length > 0) {
+            log.info("db", "Aggregate Table Migration Completed");
+        } else {
+            log.info("db", "No data to migrate");
+        }
+    }
+
+    /**
+     * Remove all non-important heartbeats from heartbeat table, keep last 24-hour or {KEEP_LAST_ROWS} rows for each monitor
+     * @param {boolean} detailedLog Log detailed information
+     * @returns {Promise<void>}
+     */
+    static async clearHeartbeatData(detailedLog = false) {
+        let monitors = await R.getAll("SELECT id FROM monitor");
+        const sqlHourOffset = Database.sqlHourOffset();
+
+        for (let monitor of monitors) {
+            if (detailedLog) {
+                log.info("db", "Deleting non-important heartbeats for monitor " + monitor.id);
+            }
+            await R.exec(`
+                DELETE FROM heartbeat
+                WHERE monitor_id = ?
+                AND important = 0
+                AND time < ${sqlHourOffset}
+                AND id NOT IN (
+                    SELECT id
+                    FROM heartbeat
+                    WHERE monitor_id = ?
+                    ORDER BY time DESC
+                    LIMIT ?
+                )
+            `, [
+                monitor.id,
+                -24,
+                monitor.id,
+                100,
+            ]);
+        }
+    }
+
 }
 
 module.exports = Database;

server/jobs/clear-old-data.js

@@ -1,21 +1,22 @@
 const { R } = require("redbean-node");
 const { log } = require("../../src/util");
-const { setSetting, setting } = require("../util-server");
 const Database = require("../database");
+const { Settings } = require("../settings");
+const dayjs = require("dayjs");
 
-const DEFAULT_KEEP_PERIOD = 180;
+const DEFAULT_KEEP_PERIOD = 365;
 
 /**
- * Clears old data from the heartbeat table of the database.
+ * Clears old data from the heartbeat table and the stat_daily of the database.
  * @returns {Promise<void>} A promise that resolves when the data has been cleared.
  */
-
 const clearOldData = async () => {
-    let period = await setting("keepDataPeriodDays");
+    await Database.clearHeartbeatData();
+    let period = await Settings.get("keepDataPeriodDays");
 
     // Set Default Period
     if (period == null) {
-        await setSetting("keepDataPeriodDays", DEFAULT_KEEP_PERIOD, "general");
+        await Settings.set("keepDataPeriodDays", DEFAULT_KEEP_PERIOD, "general");
         period = DEFAULT_KEEP_PERIOD;
     }
 
@@ -25,23 +26,28 @@ const clearOldData = async () => {
         parsedPeriod = parseInt(period);
     } catch (_) {
         log.warn("clearOldData", "Failed to parse setting, resetting to default..");
-        await setSetting("keepDataPeriodDays", DEFAULT_KEEP_PERIOD, "general");
+        await Settings.set("keepDataPeriodDays", DEFAULT_KEEP_PERIOD, "general");
         parsedPeriod = DEFAULT_KEEP_PERIOD;
     }
 
     if (parsedPeriod < 1) {
         log.info("clearOldData", `Data deletion has been disabled as period is less than 1. Period is ${parsedPeriod} days.`);
     } else {
-
         log.debug("clearOldData", `Clearing Data older than ${parsedPeriod} days...`);
-
         const sqlHourOffset = Database.sqlHourOffset();
 
         try {
-            await R.exec(
-                "DELETE FROM heartbeat WHERE time < " + sqlHourOffset,
-                [ parsedPeriod * -24 ]
-            );
+            // Heartbeat
+            await R.exec("DELETE FROM heartbeat WHERE time < " + sqlHourOffset, [
+                parsedPeriod * -24,
+            ]);
+
+            let timestamp = dayjs().subtract(parsedPeriod, "day").utc().startOf("day").unix();
+
+            // stat_daily
+            await R.exec("DELETE FROM stat_daily WHERE timestamp < ? ", [
+                timestamp,
+            ]);
 
             if (Database.dbConfig.type === "sqlite") {
                 await R.exec("PRAGMA optimize;");
@@ -50,6 +56,8 @@ const clearOldData = async () => {
             log.error("clearOldData", `Failed to clear old data: ${e.message}`);
         }
     }
+
+    log.debug("clearOldData", "Data cleared.");
 };
 
 module.exports = {

server/model/monitor.js

@@ -120,6 +120,7 @@ class Monitor extends BeanModel {
             dns_resolve_server: this.dns_resolve_server,
             dns_last_result: this.dns_last_result,
             docker_container: this.docker_container,
+            docker_service: this.docker_service,
             docker_host: this.docker_host,
             proxyId: this.proxy_id,
             notificationIDList: preloadData.notifications.get(this.id) || {},
@@ -757,6 +758,54 @@ class Monitor extends BeanModel {
                     } else {
                         throw Error("Container State is " + res.data.State.Status);
                     }
+                } else if (this.type === "docker-service-availability") { // TODO: add a service-health to count running vs desired (needs services api)
+                    log.debug("monitor", `[${this.name}] Prepare Options for Axios`);
+
+                    const options = {
+                        url: `/tasks?filters={"service":{"${this.docker_service}":true}}`,
+                        timeout: this.interval * 1000 * 0.8,
+                        headers: {
+                            "Accept": "*/*",
+                        },
+                        httpsAgent: new https.Agent({
+                            maxCachedSessions: 0,      // Use Custom agent to disable session reuse (https://github.com/nodejs/node/issues/3940)
+                            rejectUnauthorized: !this.getIgnoreTls(),
+                            secureOptions: crypto.constants.SSL_OP_LEGACY_SERVER_CONNECT,
+                        }),
+                        httpAgent: new http.Agent({
+                            maxCachedSessions: 0,
+                        }),
+                    };
+
+                    const dockerHost = await R.load("docker_host", this.docker_host);
+
+                    if (!dockerHost) {
+                        throw new Error("Failed to load docker host config");
+                    }
+
+                    if (dockerHost._dockerType === "socket") {
+                        options.socketPath = dockerHost._dockerDaemon;
+                    } else if (dockerHost._dockerType === "tcp") {
+                        options.baseURL = DockerHost.patchDockerURL(dockerHost._dockerDaemon);
+                        options.httpsAgent = new https.Agent(
+                            DockerHost.getHttpsAgentOptions(dockerHost._dockerType, options.baseURL)
+                        );
+                    }
+
+                    log.debug("monitor", `[${this.name}] Axios Request (get service tasks)`);
+                    let res = await axios.request(options);
+
+                    if (res.data.message) {
+                        throw Error(res.data.message);
+                    }
+
+                    if (res.data.filter((task) => task.Status.State === "running").length) {
+                        bean.status = UP;
+                        bean.msg = `Service: ${this.docker_service} is available`;
+                    } else {
+                        bean.status = DOWN;
+                        bean.msg = `Service: ${this.docker_service} is Down. No replicas available`;
+                    }
                 } else if (this.type === "sqlserver") {
                     let startTime = dayjs().valueOf();
 

server/server.js

@@ -828,6 +828,7 @@ let needSetup = false;
                 bean.dns_resolve_server = monitor.dns_resolve_server;
                 bean.pushToken = monitor.pushToken;
                 bean.docker_container = monitor.docker_container;
+                bean.docker_service = monitor.docker_service;
                 bean.docker_host = monitor.docker_host;
                 bean.proxyId = Number.isInteger(monitor.proxyId) ? monitor.proxyId : null;
                 bean.mqttUsername = monitor.mqttUsername;
@@ -1604,18 +1605,20 @@ let needSetup = false;
 
     await server.start();
 
-    server.httpServer.listen(port, hostname, () => {
+    server.httpServer.listen(port, hostname, async () => {
         if (hostname) {
             log.info("server", `Listening on ${hostname}:${port}`);
         } else {
             log.info("server", `Listening on ${port}`);
         }
-        startMonitors();
+        await startMonitors();
+
+        // Put this here. Start background jobs after the db and server is ready to prevent clear up during db migration.
+        await initBackgroundJobs();
+
         checkVersion.startInterval();
     });
 
-    await initBackgroundJobs();
-
     // Start cloudflared at the end if configured
     await cloudflaredAutoStart(cloudflaredToken);
 
@@ -1809,7 +1812,11 @@ async function startMonitors() {
     }
 
     for (let monitor of list) {
-        await monitor.start(io);
+        try {
+            await monitor.start(io);
+        } catch (e) {
+            log.error("monitor", e);
+        }
         // Give some delays, so all monitors won't make request at the same moment when just start the server.
         await sleep(getRandomInt(300, 1000));
     }

server/uptime-calculator.js

@@ -12,7 +12,6 @@ class UptimeCalculator {
      * @private
      * @type {{string:UptimeCalculator}}
      */
-
     static list = {};
 
     /**
@@ -55,6 +54,15 @@ class UptimeCalculator {
     lastHourlyStatBean = null;
     lastMinutelyStatBean = null;
 
+    /**
+     * For migration purposes.
+     * @type {boolean}
+     */
+    migrationMode = false;
+
+    statMinutelyKeepHour = 24;
+    statHourlyKeepDay = 30;
+
     /**
      * Get the uptime calculator for a monitor
      * Initializes and returns the monitor if it does not exist
@@ -189,16 +197,19 @@ class UptimeCalculator {
     /**
      * @param {number} status status
      * @param {number} ping Ping
+     * @param {dayjs.Dayjs} date Date (Only for migration)
      * @returns {dayjs.Dayjs} date
      * @throws {Error} Invalid status
      */
-    async update(status, ping = 0) {
-        let date = this.getCurrentDate();
+    async update(status, ping = 0, date) {
+        if (!date) {
+            date = this.getCurrentDate();
+        }
 
         let flatStatus = this.flatStatus(status);
 
         if (flatStatus === DOWN && ping > 0) {
-            log.warn("uptime-calc", "The ping is not effective when the status is DOWN");
+            log.debug("uptime-calc", "The ping is not effective when the status is DOWN");
         }
 
         let divisionKey = this.getMinutelyKey(date);
@@ -297,47 +308,61 @@ class UptimeCalculator {
         }
         await R.store(dailyStatBean);
 
-        let hourlyStatBean = await this.getHourlyStatBean(hourlyKey);
-        hourlyStatBean.up = hourlyData.up;
-        hourlyStatBean.down = hourlyData.down;
-        hourlyStatBean.ping = hourlyData.avgPing;
-        hourlyStatBean.pingMin = hourlyData.minPing;
-        hourlyStatBean.pingMax = hourlyData.maxPing;
-        {
-            // eslint-disable-next-line no-unused-vars
-            const { up, down, avgPing, minPing, maxPing, timestamp, ...extras } = hourlyData;
-            if (Object.keys(extras).length > 0) {
-                hourlyStatBean.extras = JSON.stringify(extras);
+        let currentDate = this.getCurrentDate();
+
+        // For migration mode, we don't need to store old hourly and minutely data, but we need 30-day's hourly data
+        // Run anyway for non-migration mode
+        if (!this.migrationMode || date.isAfter(currentDate.subtract(this.statHourlyKeepDay, "day"))) {
+            let hourlyStatBean = await this.getHourlyStatBean(hourlyKey);
+            hourlyStatBean.up = hourlyData.up;
+            hourlyStatBean.down = hourlyData.down;
+            hourlyStatBean.ping = hourlyData.avgPing;
+            hourlyStatBean.pingMin = hourlyData.minPing;
+            hourlyStatBean.pingMax = hourlyData.maxPing;
+            {
+                // eslint-disable-next-line no-unused-vars
+                const { up, down, avgPing, minPing, maxPing, timestamp, ...extras } = hourlyData;
+                if (Object.keys(extras).length > 0) {
+                    hourlyStatBean.extras = JSON.stringify(extras);
+                }
             }
+            await R.store(hourlyStatBean);
         }
-        await R.store(hourlyStatBean);
 
-        let minutelyStatBean = await this.getMinutelyStatBean(divisionKey);
-        minutelyStatBean.up = minutelyData.up;
-        minutelyStatBean.down = minutelyData.down;
-        minutelyStatBean.ping = minutelyData.avgPing;
-        minutelyStatBean.pingMin = minutelyData.minPing;
-        minutelyStatBean.pingMax = minutelyData.maxPing;
-        {
-            // eslint-disable-next-line no-unused-vars
-            const { up, down, avgPing, minPing, maxPing, timestamp, ...extras } = minutelyData;
-            if (Object.keys(extras).length > 0) {
-                minutelyStatBean.extras = JSON.stringify(extras);
+        // For migration mode, we don't need to store old hourly and minutely data, but we need 24-hour's minutely data
+        // Run anyway for non-migration mode
+        if (!this.migrationMode || date.isAfter(currentDate.subtract(this.statMinutelyKeepHour, "hour"))) {
+            let minutelyStatBean = await this.getMinutelyStatBean(divisionKey);
+            minutelyStatBean.up = minutelyData.up;
+            minutelyStatBean.down = minutelyData.down;
+            minutelyStatBean.ping = minutelyData.avgPing;
+            minutelyStatBean.pingMin = minutelyData.minPing;
+            minutelyStatBean.pingMax = minutelyData.maxPing;
+            {
+                // eslint-disable-next-line no-unused-vars
+                const { up, down, avgPing, minPing, maxPing, timestamp, ...extras } = minutelyData;
+                if (Object.keys(extras).length > 0) {
+                    minutelyStatBean.extras = JSON.stringify(extras);
+                }
             }
+            await R.store(minutelyStatBean);
         }
-        await R.store(minutelyStatBean);
 
-        // Remove the old data
-        log.debug("uptime-calc", "Remove old data");
-        await R.exec("DELETE FROM stat_minutely WHERE monitor_id = ? AND timestamp < ?", [
-            this.monitorID,
-            this.getMinutelyKey(date.subtract(24, "hour")),
-        ]);
+        // No need to remove old data in migration mode
+        if (!this.migrationMode) {
+            // Remove the old data
+            // TODO: Improvement: Convert it to a job?
+            log.debug("uptime-calc", "Remove old data");
+            await R.exec("DELETE FROM stat_minutely WHERE monitor_id = ? AND timestamp < ?", [
+                this.monitorID,
+                this.getMinutelyKey(currentDate.subtract(this.statMinutelyKeepHour, "hour")),
+            ]);
 
-        await R.exec("DELETE FROM stat_hourly WHERE monitor_id = ? AND timestamp < ?", [
-            this.monitorID,
-            this.getHourlyKey(date.subtract(30, "day")),
-        ]);
+            await R.exec("DELETE FROM stat_hourly WHERE monitor_id = ? AND timestamp < ?", [
+                this.monitorID,
+                this.getHourlyKey(currentDate.subtract(this.statHourlyKeepDay, "day")),
+            ]);
+        }
 
         return date;
     }
@@ -812,6 +837,14 @@ class UptimeCalculator {
         return dayjs.utc();
     }
 
+    /**
+     * For migration purposes.
+     * @param {boolean} value Migration mode on/off
+     * @returns {void}
+     */
+    setMigrationMode(value) {
+        this.migrationMode = value;
+    }
 }
 
 class UptimeDataResult {

src/pages/EditMonitor.vue

@@ -42,6 +42,9 @@
                                         <option value="docker">
                                             {{ $t("Docker Container") }}
                                         </option>
+                                        <option value="docker-service-availability">
+                                            {{ $t("Docker Service (Simple Availability)") }}
+                                        </option>
 
                                         <option value="real-browser">
                                             HTTP(s) - Browser Engine (Chrome/Chromium) (Beta)
@@ -414,9 +417,16 @@
                                 <input id="docker_container" v-model="monitor.docker_container" type="text" class="form-control" required>
                             </div>
 
+                            <!-- Docker Service Name / ID -->
+                            <!-- For Docker Service Type -->
+                            <div v-if="monitor.type === 'docker-service-availability'" class="my-3">
+                                <label for="docker_service" class="form-label">{{ $t("Service Name / ID") }}</label>
+                                <input id="docker_service" v-model="monitor.docker_service" type="text" class="form-control" required>
+                            </div>
+
                             <!-- Docker Host -->
                             <!-- For Docker Type -->
-                            <div v-if="monitor.type === 'docker'" class="my-3">
+                            <div v-if="['docker', 'docker-service-availability'].includes(monitor.type)" class="my-3">
                                 <div class="mb-3">
                                     <label for="docker-host" class="form-label">{{ $t("Docker Host") }}</label>
                                     <ActionSelect
@@ -1150,6 +1160,7 @@ const monitorDefaults = {
     dns_resolve_type: "A",
     dns_resolve_server: "1.1.1.1",
     docker_container: "",
+    docker_service: "",
     docker_host: null,
     proxyId: null,
     mqttUsername: "",
@@ -1784,7 +1795,7 @@ message HealthCheckResponse {
                     return false;
                 }
             }
-            if (this.monitor.type === "docker") {
+            if ([ "docker", "docker-service-availability" ].includes(this.monitor.type)) {
                 if (this.monitor.docker_host == null) {
                     toast.error(this.$t("DockerHostRequired"));
                     return false;