feat: proxmox idlewatcher (#88)

* feat: idle sleep for proxmox LXCs

* refactor: replace deprecated docker api types

* chore(api): remove debug task list endpoint

* refactor: move servemux to gphttp/servemux; favicon.go to v1/favicon

* refactor: introduce Pool interface, move agent_pool to agent module

* refactor: simplify api code

* feat: introduce debug api

* refactor: remove net.URL and net.CIDR types, improved unmarshal handling

* chore: update Makefile for debug build tag, update README

* chore: add gperr.Unwrap method

* feat: relative time and duration formatting

* chore: add ROOT_DIR environment variable, refactor

* migration: move homepage override and icon cache to $BASE_DIR/data, add migration code

* fix: nil dereference on marshalling service health

* fix: wait for route deletion

* chore: enhance tasks debuggability

* feat: stdout access logger and MultiWriter

* fix(agent): remove agent properly on verify error

* fix(metrics): disk exclusion logic and added corresponding tests

* chore: update schema and prettify, fix package.json and Makefile

* fix: I/O buffer not being shrunk before putting back to pool

* feat: enhanced error handling module

* chore: deps upgrade

* feat: better value formatting and handling

---------

Co-authored-by: yusing <yusing@6uo.me>

internal/proxmox/client.go

@@ -0,0 +1,68 @@
+package proxmox
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/luthermonson/go-proxmox"
+	"github.com/yusing/go-proxy/internal/utils/pool"
+)
+
+type Client struct {
+	*proxmox.Client
+	proxmox.Cluster
+	Version *proxmox.Version
+}
+
+var Clients = pool.New[*Client]("proxmox_clients")
+
+func NewClient(baseUrl string, opts ...proxmox.Option) *Client {
+	return &Client{Client: proxmox.NewClient(baseUrl, opts...)}
+}
+
+func (c *Client) UpdateClusterInfo(ctx context.Context) (err error) {
+	c.Version, err = c.Client.Version(ctx)
+	if err != nil {
+		return err
+	}
+	// requires (/, Sys.Audit)
+	if err := c.Get(ctx, "/cluster/status", &c.Cluster); err != nil {
+		return err
+	}
+	for _, node := range c.Cluster.Nodes {
+		Nodes.Add(&Node{name: node.Name, id: node.ID, client: c.Client})
+	}
+	return nil
+}
+
+// Key implements pool.Object
+func (c *Client) Key() string {
+	return c.Cluster.ID
+}
+
+// Name implements pool.Object
+func (c *Client) Name() string {
+	return c.Cluster.Name
+}
+
+// MarshalMap implements pool.Object
+func (c *Client) MarshalMap() map[string]any {
+	return map[string]any{
+		"version": c.Version,
+		"cluster": map[string]any{
+			"name":    c.Cluster.Name,
+			"id":      c.Cluster.ID,
+			"version": c.Cluster.Version,
+			"nodes":   c.Cluster.Nodes,
+			"quorate": c.Cluster.Quorate,
+		},
+	}
+}
+
+func (c *Client) NumNodes() int {
+	return len(c.Cluster.Nodes)
+}
+
+func (c *Client) String() string {
+	return fmt.Sprintf("%s (%s)", c.Cluster.Name, c.Cluster.ID)
+}