79 lines
2.1 KiB
Go
79 lines
2.1 KiB
Go
package main
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import (
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"context"
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"os/exec"
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"strings"
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"time"
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)
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// readDockerStats 读取 Docker 统计信息（简化版）
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func readDockerStats() DockerStats {
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stats := DockerStats{
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Available: false,
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RunningNames: []string{},
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StoppedNames: []string{},
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ImageNames: []string{},
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}
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// 检查 docker 是否可用
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if _, err := exec.LookPath("docker"); err != nil {
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return stats
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}
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stats.Available = true
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// 获取 Docker 版本
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cmd := exec.Command("docker", "--version")
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if out, err := cmd.Output(); err == nil {
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stats.Version = strings.TrimSpace(string(out))
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}
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// 获取运行中的容器名
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ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
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defer cancel()
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cmd = exec.CommandContext(ctx, "docker", "ps", "--format", "{{.Names}}")
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if out, err := cmd.Output(); err == nil {
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lines := strings.Split(strings.TrimSpace(string(out)), "\n")
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for _, line := range lines {
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line = strings.TrimSpace(line)
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if line != "" {
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stats.RunningNames = append(stats.RunningNames, line)
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stats.Running++
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}
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}
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}
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// 获取停止的容器名
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ctx, cancel = context.WithTimeout(context.Background(), 3*time.Second)
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defer cancel()
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cmd = exec.CommandContext(ctx, "docker", "ps", "-a", "--filter", "status=exited", "--format", "{{.Names}}")
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if out, err := cmd.Output(); err == nil {
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lines := strings.Split(strings.TrimSpace(string(out)), "\n")
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for _, line := range lines {
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line = strings.TrimSpace(line)
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if line != "" {
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stats.StoppedNames = append(stats.StoppedNames, line)
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stats.Stopped++
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}
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}
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}
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// 获取镜像名（只获取前20个，避免数据过多）
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ctx, cancel = context.WithTimeout(context.Background(), 3*time.Second)
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defer cancel()
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cmd = exec.CommandContext(ctx, "docker", "images", "--format", "{{.Repository}}:{{.Tag}}")
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if out, err := cmd.Output(); err == nil {
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lines := strings.Split(strings.TrimSpace(string(out)), "\n")
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for _, line := range lines {
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line = strings.TrimSpace(line)
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if line != "" && line != "<none>:<none>" {
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stats.ImageNames = append(stats.ImageNames, line)
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stats.ImageCount++
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}
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}
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}
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return stats
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}
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