@bbc/sofie-server-core-integration/dist/lib/health.js

Library for connecting to Core

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.HealthEndpoints = void 0;
const tslib_1 = require("tslib");
const koa_1 = tslib_1.__importDefault(require("koa"));
const router_1 = tslib_1.__importDefault(require("@koa/router"));
const status_1 = require("@bbc/sofie-shared-lib/dist/lib/status");
const lib_1 = require("@bbc/sofie-shared-lib/dist/lib/lib");
/**
 * Exposes health endpoints for Kubernetes or other orchestrators to monitor
 * see https://kubernetes.io/docs/concepts/configuration/liveness-readiness-startup-probes
 */
class HealthEndpoints {
    connector;
    coreHandler;
    config;
    app = new koa_1.default();
    constructor(connector, coreHandler, config) {
        this.connector = connector;
        this.coreHandler = coreHandler;
        this.config = config;
        if (!config.port)
            return; // disabled
        const router = new router_1.default();
        router.get('/healthz', async (ctx) => {
            if (this.connector.initializedError !== undefined) {
                ctx.status = 503;
                ctx.body = `Error during initialization: ${this.connector.initializedError}`;
                return;
            }
            if (!this.connector.initialized) {
                ctx.status = 503;
                ctx.body = 'Not initialized';
                return;
            }
            const coreStatus = this.coreHandler.getCoreStatus();
            if (coreStatus.statusCode === status_1.StatusCode.UNKNOWN)
                ctx.status = 503;
            else if (coreStatus.statusCode === status_1.StatusCode.FATAL)
                ctx.status = 503;
            else if (coreStatus.statusCode === status_1.StatusCode.BAD)
                ctx.status = 503;
            else if (coreStatus.statusCode === status_1.StatusCode.WARNING_MAJOR)
                ctx.status = 200;
            else if (coreStatus.statusCode === status_1.StatusCode.WARNING_MINOR)
                ctx.status = 200;
            else if (coreStatus.statusCode === status_1.StatusCode.GOOD)
                ctx.status = 200;
            else
                (0, lib_1.assertNever)(coreStatus.statusCode);
            if (ctx.status !== 200) {
                ctx.body = `Status: ${status_1.StatusCode[coreStatus.statusCode]}, messages: ${coreStatus.messages.join(', ')}`;
            }
            else {
                ctx.body = 'OK';
            }
        });
        router.get('/readyz', async (ctx) => {
            if (!this.coreHandler.connectedToCore) {
                ctx.status = 503;
                ctx.body = 'Not connected to Core';
                return;
            }
            // else
            ctx.status = 200;
            ctx.body = 'READY';
        });
        this.app.use(router.routes()).use(router.allowedMethods());
        this.app.listen(this.config.port);
    }
}
exports.HealthEndpoints = HealthEndpoints;
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