@webda/core/lib/services/kubernetesconfiguration.js

Expose API with Lambda

import * as fs from "fs";
import * as path from "path";
import { WebdaError } from "../index.js";
import { FileUtils } from "../utils/serializers.js";
import { ConfigurationService } from "./configuration.js";
/**
 * Allow for dynamic configuration from ConfigMap or Secrets
 *
 * Read a ConfigMap from Kubernetes and auto-update
 * @WebdaModda
 */
export class KubernetesConfigurationService extends ConfigurationService {
    /**
     * @ignore
     */
    async init() {
        // Do not call super as we diverged
        if (!this.parameters.source) {
            throw new WebdaError.CodeError("KUBE_CONFIGURATION_SOURCE_MISSING", "Need a source for KubernetesConfigurationService");
        }
        this.parameters.source = this._webda.getAppPath(this.parameters.source);
        if (!fs.existsSync(this.parameters.source)) {
            throw new WebdaError.CodeError("KUBE_CONFIGURATION_SOURCE_MISSING", "Need a source for KubernetesConfigurationService");
        }
        // Add webda info
        this.watch("$.services", (updates) => this._webda.reinit(updates));
        fs.watchFile(path.join(this.parameters.source, "..data"), this.checkUpdate.bind(this));
        await this.checkUpdate();
        return this;
    }
    /**
     * Read the file and store it
     */
    async initConfiguration() {
        return this.loadAndStoreConfiguration();
    }
    /**
     * Load configuration from a ConfigMap or a Secret
     * @override
     */
    async loadConfiguration() {
        let result = {};
        const found = fs
            .readdirSync(this.parameters.source)
            .filter(f => !f.startsWith(".") && f.match(/webda\.(jsonc?|ya?ml)$/i))
            .pop();
        if (!found) {
            return this.parameters.default;
        }
        this.log("TRACE", "loadConfiguration", result);
        return FileUtils.load(path.join(this.parameters.source, found));
    }
}
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