feat(ui): Add cost optimisation nudges.

ui/src/app/shared/components/cost-optimisation-nudge.tsx

@@ -0,0 +1,41 @@
+import * as React from 'react';
+import {Notice} from './notice';
+
+interface Props {
+    name: string;
+}
+interface State {
+    closed: boolean;
+}
+
+export class CostOptimisationNudge extends React.Component<Props, State> {
+    constructor(props: Readonly<Props>) {
+        super(props);
+        this.state = {closed: localStorage.getItem(this.key) !== null};
+    }
+
+    public render() {
+        return (
+            !this.state.closed && (
+                <Notice>
+                    <i className='fa fa-money-bill-alt status-icon--pending' /> {this.props.children}{' '}
+                    <a href='https://github.com/argoproj/argo/blob/master/docs/cost-optimisation.md'>Learn more</a>
+                    <span className='fa-pull-right'>
+                        <a onClick={() => this.close()}>
+                            <i className='fa fa-times' />
+                        </a>{' '}
+                    </span>
+                </Notice>
+            )
+        );
+    }
+
+    private get key() {
+        return 'cost-optimization-nude/' + this.props.name;
+    }
+
+    private close() {
+        this.setState({closed: true});
+        localStorage.setItem(this.key, '{}');
+    }
+}

ui/src/app/shared/components/notice.tsx

@@ -0,0 +1,13 @@
+import * as React from 'react';
+
+export class Notice extends React.Component {
+    public render() {
+        return (
+            <div style={{marginTop: 20, marginBottom: 20}}>
+                <div className='white-box' style={{padding: 20}}>
+                    {this.props.children}
+                </div>
+            </div>
+        );
+    }
+}

ui/src/app/workflows/components/workflow-details/workflow-details.tsx

@@ -10,6 +10,7 @@ import {uiUrl} from '../../../shared/base';
 import {services} from '../../../shared/services';
 
 import {WorkflowArtifacts, WorkflowDag, WorkflowLogsViewer, WorkflowNodeInfo, WorkflowSummaryPanel, WorkflowTimeline, WorkflowYamlViewer} from '..';
+import {CostOptimisationNudge} from '../../../shared/components/cost-optimisation-nudge';
 import {hasWarningConditionBadge} from '../../../shared/conditions-panel';
 import {Consumer, ContextApis} from '../../../shared/context';
 import {Utils} from '../../../shared/utils';
@@ -360,6 +361,27 @@ export class WorkflowDetails extends React.Component<RouteComponentProps<any>, W
         this.appContext.router.history.push(`${this.props.match.url}?${params.toString()}`);
     }
 
+    private renderCostOptimisations() {
+        const recommendations: string[] = [];
+        if (!this.state.workflow.spec.activeDeadlineSeconds) {
+            recommendations.push('activeDeadlineSeconds');
+        }
+        if (!this.state.workflow.spec.ttlStrategy) {
+            recommendations.push('ttlStrategy');
+        }
+        if (!this.state.workflow.spec.podGC) {
+            recommendations.push('podGC');
+        }
+        if (recommendations.length === 0) {
+            return;
+        }
+        return (
+            <CostOptimisationNudge name='workflow'>
+                You do not have {recommendations.join('/')} enabled for this workflow. Enabling these will reduce your costs.
+            </CostOptimisationNudge>
+        );
+    }
+
     private renderSummaryTab() {
         if (!this.state.workflow) {
             return <div>Loading...</div>;
@@ -368,6 +390,7 @@ export class WorkflowDetails extends React.Component<RouteComponentProps<any>, W
             <div className='argo-container'>
                 <div className='workflow-details__content'>
                     <WorkflowSummaryPanel workflow={this.state.workflow} />
+                    {this.renderCostOptimisations()}
                     {this.state.workflow.spec.arguments && this.state.workflow.spec.arguments.parameters && (
                         <React.Fragment>
                             <h6>Parameters</h6>

ui/src/app/workflows/components/workflows-list/workflows-list.tsx

@@ -4,7 +4,7 @@ import {Subscription} from 'rxjs';
 
 import {Autocomplete, Page, SlidingPanel} from 'argo-ui';
 import * as models from '../../../../models';
-import {Workflow} from '../../../../models';
+import {labels, Workflow} from '../../../../models';
 import {uiUrl} from '../../../shared/base';
 import {Consumer} from '../../../shared/context';
 import {services} from '../../../shared/services';
@@ -19,6 +19,7 @@ import {Utils} from '../../../shared/utils';
 
 import {Ticker} from 'argo-ui/src/index';
 import * as classNames from 'classnames';
+import {CostOptimisationNudge} from '../../../shared/components/cost-optimisation-nudge';
 import {PaginationPanel} from '../../../shared/components/pagination-panel';
 import {Timestamp} from '../../../shared/components/timestamp';
 import {formatDuration, wfDuration} from '../../../shared/duration';
@@ -225,6 +226,18 @@ export class WorkflowsList extends BasePage<RouteComponentProps<any>, State> {
         this.fetchWorkflows(namespace, selectedPhases, selectedLabels, pagination);
     }
 
+    private countsByCompleted() {
+        const counts = {complete: 0, incomplete: 0};
+        this.state.workflows.forEach(wf => {
+            if (wf.metadata.labels && wf.metadata.labels[labels.completed] === 'true') {
+                counts.complete++;
+            } else {
+                counts.incomplete++;
+            }
+        });
+        return counts;
+    }
+
     private renderWorkflows() {
         if (!this.state.workflows) {
             return <Loading />;
@@ -238,8 +251,15 @@ export class WorkflowsList extends BasePage<RouteComponentProps<any>, State> {
             );
         }
 
+        const counts = this.countsByCompleted();
+
         return (
             <>
+                {(counts.complete > 100 || counts.incomplete > 100) && (
+                    <CostOptimisationNudge name='workflow-list'>
+                        You have at least {counts.incomplete} incomplete, and {counts.complete} complete workflows. Reducing these amounts will reduce your costs.
+                    </CostOptimisationNudge>
+                )}
                 <div className='argo-table-list'>
                     <div className='row argo-table-list__head'>
                         <div className='columns small-1' />

ui/src/models/workflows.ts

@@ -1,5 +1,9 @@
 import * as kubernetes from 'argo-ui/src/models/kubernetes';
 
+export const labels = {
+    completed: 'workflows.argoproj.io/completed'
+};
+
 /**
  * Arguments to a template
  */
@@ -804,6 +808,23 @@ export interface WorkflowList {
  * WorkflowSpec is the specification of a Workflow.
  */
 export interface WorkflowSpec {
+    /**
+     * Optional duration in seconds relative to the workflow start time which the workflow is
+     * allowed to run before the controller terminates the workflow. A value of zero is used to
+     * terminate a Running workflow
+     */
+    activeDeadlineSeconds?: number;
+    /**
+     * TTLStrategy limits the lifetime of a Workflow that has finished execution depending on if it
+     * Succeeded or Failed. If this struct is set, once the Workflow finishes, it will be
+     * deleted after the time to live expires. If this field is unset,
+     * the controller config map will hold the default values.
+     */
+    ttlStrategy?: {};
+    /**
+     * PodGC describes the strategy to use when to deleting completed pods
+     */
+    podGC?: {};
     /**
      * Affinity sets the scheduling constraints for all pods in the workflow. Can be overridden by an affinity specified in the template
      */