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rendering initial dashboard UI with go template and sample data
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| resources: | ||
| requests: | ||
| cpu: | ||
| min: 100m | ||
| max: 1 | ||
| memory: | ||
| min: 100M | ||
| max: 3G | ||
| limits: | ||
| cpu: | ||
| min: 150m | ||
| max: 2 | ||
| memory: | ||
| min: 150M | ||
| max: 4G |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| package dashboard | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
| "html/template" | ||
| "log" | ||
| "net/http" | ||
|
|
||
| conf "github.com/reactiveops/fairwinds/pkg/config" | ||
| "github.com/reactiveops/fairwinds/pkg/kube" | ||
| "github.com/reactiveops/fairwinds/pkg/validator" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| ) | ||
|
|
||
| type DashboardData struct { | ||
| ClusterSummary *validator.ResultSummary | ||
| NamespacedResults []validator.NamespacedResult | ||
| } | ||
|
|
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| var tmpl = template.Must(template.ParseFiles("pkg/dashboard/templates/dashboard.gohtml")) | ||
|
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| func Render(w http.ResponseWriter, r *http.Request, c conf.Configuration) { | ||
| dashboardData := getDashboardData() | ||
| tmpl.Execute(w, dashboardData) | ||
| } | ||
|
|
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| func RenderJSON(w http.ResponseWriter, r *http.Request, c conf.Configuration) { | ||
| results := []validator.Results{} | ||
| pods, err := kube.CoreV1API.Pods("").List(metav1.ListOptions{}) | ||
| if err != nil { | ||
| http.Error(w, "Error Fetching Pods", 500) | ||
| return | ||
| } | ||
| log.Println("pods count:", len(pods.Items)) | ||
| for _, pod := range pods.Items { | ||
| result := validator.ValidatePods(c, &pod, validator.Results{}) | ||
| results = append(results, result) | ||
| } | ||
| w.WriteHeader(http.StatusOK) | ||
| w.Header().Set("Content-Type", "application/json") | ||
| json.NewEncoder(w).Encode(results) | ||
| } | ||
|
|
||
| func getDashboardData() DashboardData { | ||
| return DashboardData{ | ||
| ClusterSummary: &validator.ResultSummary{ | ||
| Successes: 46, | ||
| Warnings: 8, | ||
| Failures: 5, | ||
| }, | ||
| NamespacedResults: []validator.NamespacedResult{{ | ||
| Namespace: "kube-system", | ||
| Results: []validator.ResourceResult{{ | ||
| Name: "tiller", | ||
| Type: "Deployment", | ||
| Summary: &validator.ResultSummary{ | ||
| Successes: 7, | ||
| Warnings: 3, | ||
| Failures: 2, | ||
| }, | ||
| Messages: []validator.ResultMessage{{ | ||
| Message: "Image Tag Specified", | ||
| Type: "success", | ||
| }, { | ||
| Message: "Liveness Probe Specified", | ||
| Type: "success", | ||
| }, { | ||
| Message: "Readiness Probe Specified", | ||
| Type: "success", | ||
| }, { | ||
| Message: "Container Running As Root", | ||
| Type: "warning", | ||
| }, { | ||
| Message: "Resource requests are not set", | ||
| Type: "failure", | ||
| }}, | ||
| }}, | ||
| }}, | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
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| <!doctype html> | ||
| <html> | ||
|
|
||
| <head> | ||
| <meta charset="utf-8"> | ||
| <meta http-equiv="x-ua-compatible" content="ie=edge"> | ||
| <title>Fairwinds</title> | ||
| <meta name="description" content=""> | ||
| <meta name="viewport" content="width=device-width, initial-scale=1"> | ||
|
|
||
| <link href="https://fonts.googleapis.com/css?family=Lobster" rel="stylesheet"> | ||
| <link rel="stylesheet" href="/static/css/normalize.css"> | ||
| <link rel="stylesheet" href="/static/css/main.css"> | ||
| </head> | ||
|
|
||
| <body> | ||
| <div class="header"> | ||
| <h1>Fairwinds</h1> | ||
| </div> | ||
|
|
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| <div class="cluster-score"> | ||
| <p>Overall Score:</p> | ||
| <h2>{{ .ClusterSummary.Score }}%</h2> | ||
| <div class="status"> | ||
| <div class="failing"> | ||
| <div class="warning" style="width: {{ .ClusterSummary.WarningWidth 400 }}px;"> | ||
| <div class="passing" style="width: {{ .ClusterSummary.SuccessWidth 400 }}px;"></div> | ||
| </div> | ||
| </div> | ||
| </div> | ||
| <div class="summary"> | ||
| <div class="item"> | ||
| <span class="label">Successes:</span> | ||
| <strong class="value">{{ .ClusterSummary.Successes }}</strong> | ||
| </div> | ||
| <div class="item"> | ||
| <span class="label">Warnings:</span> | ||
| <strong class="value">{{ .ClusterSummary.Warnings }}</strong> | ||
| </div> | ||
| <div class="item"> | ||
| <span class="label">Failures:</span> | ||
| <strong class="value">{{ .ClusterSummary.Failures }}</strong> | ||
| </div> | ||
| </div> | ||
| </div> | ||
|
|
||
| {{ range .NamespacedResults }} | ||
| <div class="namespace-header"> | ||
| <h3>Namespace: <strong>{{ .Namespace }}</strong></h3> | ||
| </div> | ||
|
|
||
| <table class="namespace-content"> | ||
| {{ range .Results }} | ||
| <tr> | ||
| <td> | ||
| <div class="name"><span class="caret-expander expanded"></span>{{ .Type }}: <strong>{{ .Name }}</strong></div> | ||
| <ul class="extra"> | ||
| {{ range .Messages}} | ||
| <li class="{{ .Type }}"><span>&#{{ .HTMLSpecialCharCode }};</span> {{ .Message }}</li> | ||
| {{ end }} | ||
| </ul> | ||
| </td> | ||
| <td class="status-bar"> | ||
| <div class="status"> | ||
| <div class="failing"> | ||
| <div class="warning" style="width: {{ .Summary.WarningWidth 200 }}px;"> | ||
| <div class="passing" style="width: {{ .Summary.SuccessWidth 200 }}px;"></div> | ||
| </div> | ||
| </div> | ||
| </div> | ||
| </td> | ||
| </tr> | ||
| {{ end }} | ||
| </table> | ||
| {{ end }} | ||
| </body> | ||
|
|
||
| </html> |
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| Original file line number | Diff line number | Diff line change |
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| package validator | ||
|
|
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| // namespaceResults: [{ | ||
| // name: "kube-system", | ||
| // resourceResults: [{ | ||
| // name: "example-deployment", | ||
| // type: "DaemonSet", | ||
| // summary: { | ||
| // successes: 28, | ||
| // warnings: 12, | ||
| // failures: 18, | ||
| // }, | ||
| // messages: [{ | ||
| // message: "Resource requests are not set", | ||
| // type: "failure", | ||
| // }] | ||
| // }] | ||
| // }] | ||
|
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| type NamespacedResult struct { | ||
| Namespace string | ||
| Results []ResourceResult | ||
| } | ||
|
|
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| type ResourceResult struct { | ||
| Name string | ||
| Type string | ||
| Summary *ResultSummary | ||
| Messages []ResultMessage | ||
| } | ||
|
|
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| type ResultSummary struct { | ||
| Successes uint | ||
| Warnings uint | ||
| Failures uint | ||
| } | ||
|
|
||
| type ResultMessage struct { | ||
| Message string | ||
| Type string | ||
| } | ||
|
|
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| func (rs *ResultSummary) Score() uint { | ||
| return uint(float64(rs.Successes) / float64(rs.Successes+rs.Warnings+rs.Failures) * 100) | ||
| } | ||
|
|
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| func (rs *ResultSummary) WarningWidth(fullWidth uint) uint { | ||
| return uint(float64(rs.Successes+rs.Warnings) / float64(rs.Successes+rs.Warnings+rs.Failures) * float64(fullWidth)) | ||
| } | ||
|
|
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| func (rs *ResultSummary) SuccessWidth(fullWidth uint) uint { | ||
| return uint(float64(rs.Successes) / float64(rs.Successes+rs.Warnings+rs.Failures) * float64(fullWidth)) | ||
| } | ||
|
|
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| func (rm *ResultMessage) HTMLSpecialCharCode() string { | ||
| switch rm.Type { | ||
| case "success": | ||
| return "9745" | ||
| case "warning": | ||
| return "9888" | ||
| default: | ||
| return "9746" | ||
| } | ||
| } |
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