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103 lines
3.4 KiB
TypeScript
103 lines
3.4 KiB
TypeScript
import fs from "fs";
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import path from "path";
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import hb from "handlebars";
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import { ResourceApplier } from "../../main/resource-applier";
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import { KubernetesCluster } from "../catalog-entities";
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import logger from "../../main/logger";
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import { app } from "electron";
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import { requestMain } from "../ipc";
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import { clusterKubectlApplyAllHandler, clusterKubectlDeleteAllHandler } from "../cluster-ipc";
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import { ClusterStore } from "../cluster-store";
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export class ResourceStack {
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/**
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* this field sets the template parameters that are to be applied to any templated kubernetes resources that are to be installed.
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* See the renderTemplates() method for more details
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*/
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templateContext: any;
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constructor(protected cluster: KubernetesCluster) {}
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/**
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*
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* @param folderPath folder path that is searched for files defining kubernetes resources.
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* @param templateContext sets the template parameters that are to be applied to any templated kubernetes resources that are to be applied.
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*/
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async kubectlApplyFolder(folderPath: string, templateContext?: any): Promise<string> {
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const resources = this.renderTemplates(folderPath, templateContext);
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return this.applyResources(resources);
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}
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/**
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*
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* @param folderPath folder path that is searched for files defining kubernetes resources.
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* @param templateContext sets the template parameters that are to be applied to any templated kubernetes resources that are to be applied.
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*/
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async kubectlDeleteFolder(folderPath: string, templateContext?: any): Promise<string> {
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const resources = this.renderTemplates(folderPath, templateContext);
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return this.deleteResources(resources);
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}
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protected async applyResources(resources: string[]): Promise<string> {
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const clusterModel = ClusterStore.getInstance().getById(this.cluster.metadata.uid);
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if (!clusterModel) {
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throw new Error(`cluster not found`);
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}
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if (app) {
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return await new ResourceApplier(clusterModel).kubectlApplyAll(resources);
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} else {
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const response = await requestMain(clusterKubectlApplyAllHandler, this.cluster.metadata.uid, resources);
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if (response.stderr) {
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throw new Error(response.stderr);
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}
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return response.stdout;
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}
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}
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protected async deleteResources(resources: string[]): Promise<string> {
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const clusterModel = ClusterStore.getInstance().getById(this.cluster.metadata.uid);
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if (!clusterModel) {
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throw new Error(`cluster not found`);
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}
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if (app) {
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return await new ResourceApplier(clusterModel).kubectlDeleteAll(resources);
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} else {
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const response = await requestMain(clusterKubectlDeleteAllHandler, this.cluster.metadata.uid, resources);
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if (response.stderr) {
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throw new Error(response.stderr);
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}
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return response.stdout;
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}
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}
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protected renderTemplates(folderPath: string, templateContext: any): string[] {
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const resources: string[] = [];
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logger.info(`[RESOURCE-STACK]: render templates from ${folderPath}`);
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fs.readdirSync(folderPath).forEach(filename => {
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const file = path.join(folderPath, filename);
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const raw = fs.readFileSync(file);
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if (filename.endsWith(".hb")) {
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const template = hb.compile(raw.toString());
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resources.push(template(templateContext));
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} else {
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resources.push(raw.toString());
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}
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});
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return resources;
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}
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}
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