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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,124 @@ | ||
| package tools | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "sort" | ||
| "time" | ||
|
|
||
| "github.com/strowk/mcp-k8s-go/internal/k8s" | ||
| "github.com/strowk/mcp-k8s-go/internal/utils" | ||
|
|
||
| "github.com/strowk/foxy-contexts/pkg/fxctx" | ||
| "github.com/strowk/foxy-contexts/pkg/mcp" | ||
| "github.com/strowk/foxy-contexts/pkg/toolinput" | ||
|
|
||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| ) | ||
|
|
||
| func NewListNodesTool(pool k8s.ClientPool) fxctx.Tool { | ||
| contextProperty := "context" | ||
| schema := toolinput.NewToolInputSchema( | ||
| toolinput.WithString(contextProperty, "Name of the Kubernetes context to use, defaults to current context"), | ||
| ) | ||
| return fxctx.NewTool( | ||
| &mcp.Tool{ | ||
| Name: "list-k8s-nodes", | ||
| Description: utils.Ptr("List Kubernetes nodes using specific context"), | ||
| InputSchema: schema.GetMcpToolInputSchema(), | ||
| }, | ||
| func(args map[string]interface{}) *mcp.CallToolResult { | ||
| input, err := schema.Validate(args) | ||
| if err != nil { | ||
| return errResponse(err) | ||
| } | ||
| k8sCtx := input.StringOr(contextProperty, "") | ||
|
|
||
| clientset, err := pool.GetClientset(k8sCtx) | ||
| if err != nil { | ||
| return errResponse(err) | ||
| } | ||
|
|
||
| nodes, err := clientset. | ||
| CoreV1(). | ||
| Nodes(). | ||
| List(context.Background(), metav1.ListOptions{}) | ||
| if err != nil { | ||
| return errResponse(err) | ||
| } | ||
|
|
||
| sort.Slice(nodes.Items, func(i, j int) bool { | ||
| return nodes.Items[i].Name < nodes.Items[j].Name | ||
| }) | ||
|
|
||
| var contents []interface{} = make([]interface{}, len(nodes.Items)) | ||
| for i, ns := range nodes.Items { | ||
| // Calculate age | ||
| age := time.Since(ns.CreationTimestamp.Time) | ||
|
|
||
| // Determine status | ||
| status := "NotReady" | ||
| for _, condition := range ns.Status.Conditions { | ||
| if condition.Type == "Ready" { | ||
| if condition.Status == "True" { | ||
| status = "Ready" | ||
| } else { | ||
| status = "NotReady" | ||
| } | ||
| break | ||
| } | ||
| } | ||
|
|
||
| content, err := NewJsonContent(NodeInList{ | ||
| Name: ns.Name, | ||
| Status: status, | ||
| Age: formatAge(age), | ||
| CreatedAt: ns.CreationTimestamp.Time, | ||
| }) | ||
| if err != nil { | ||
| return errResponse(err) | ||
| } | ||
| contents[i] = content | ||
| } | ||
|
|
||
| return &mcp.CallToolResult{ | ||
| Meta: map[string]interface{}{}, | ||
| Content: contents, | ||
| IsError: utils.Ptr(false), | ||
| } | ||
| }, | ||
| ) | ||
| } | ||
|
|
||
| // NodeInList provides a structured representation of node information | ||
| type NodeInList struct { | ||
| Name string `json:"name"` | ||
| Status string `json:"status"` | ||
| Age string `json:"age"` | ||
| CreatedAt time.Time `json:"created_at"` | ||
| } | ||
|
|
||
| // formatAge converts a duration to a human-readable age string | ||
| func formatAge(duration time.Duration) string { | ||
| if duration.Hours() < 1 { | ||
| return duration.Round(time.Minute).String() | ||
| } | ||
| if duration.Hours() < 24 { | ||
| return duration.Round(time.Hour).String() | ||
| } | ||
| days := int(duration.Hours() / 24) | ||
| return formatDays(days) | ||
| } | ||
|
|
||
| // formatDays provides a concise representation of days | ||
| func formatDays(days int) string { | ||
| if days < 7 { | ||
| return fmt.Sprintf("%dd", days) | ||
| } | ||
| if days < 30 { | ||
| weeks := days / 7 | ||
| return fmt.Sprintf("%dw", weeks) | ||
| } | ||
| months := days / 30 | ||
| return fmt.Sprintf("%dmo", months) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,32 @@ | ||
| case: List nodes using tool | ||
|
|
||
| in: | ||
| { | ||
| "jsonrpc": "2.0", | ||
| "method": "tools/call", | ||
| "id": 2, | ||
| "params": | ||
| { | ||
| "name": "list-k8s-nodes", | ||
| "arguments": | ||
| { "context": "k3d-mcp-k8s-integration-test" }, | ||
| }, | ||
| } | ||
| out: | ||
| { | ||
| "jsonrpc": "2.0", | ||
| "id": 2, | ||
| "result": | ||
| { | ||
| "content": | ||
| [ | ||
| { | ||
| "type": "text", | ||
| "text": !!ere '{"name":"k3d-mcp-k8s-integration-test-server-0","status":"Ready","age":"/[0-9sm]{2,4}/","created_at":"/.+/"}', | ||
| # ^ this is a pattern, this ^ too | ||
| # this just to match a duration // and this is for timestamp | ||
| } | ||
| ], | ||
| "isError": false, | ||
| }, | ||
| } |