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Serve a local web UI from bangerd

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Add a localhost-only web console so VM and image management no longer depends on the CLI for every inspection and lifecycle action.

Wire bangerd up to a configurable web listener, expose dashboard and async image-build state through the daemon, and serve CSRF-protected HTML pages with host-path picking, VM/image detail views, logs, ports, and progress polling for long-running operations.

Keep the browser path aligned with the existing sudo and host-owned artifact model: surface sudo readiness, print the web URL in daemon status, and document the new workflow. Polish the UI with resource usage cards, clearer clickable affordances, cancel paths, confirmation prompts, image-name links, and HTTP port links.

Validation: GOCACHE=/tmp/banger-gocache go test ./...
This commit is contained in:
Thales Maciel 2026-03-21 16:47:47 -03:00
parent 30f0c0b54a
commit 2362d0ae39
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GPG key ID: 33112E6833C34679
24 changed files with 3308 additions and 52 deletions
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55
internal/config/config.go
View file

@ -15,36 +15,38 @@ import (
)
type fileConfig struct {
RuntimeDir string `toml:"runtime_dir"`
RepoRoot string `toml:"repo_root"`
LogLevel string `toml:"log_level"`
FirecrackerBin string `toml:"firecracker_bin"`
SSHKeyPath string `toml:"ssh_key_path"`
NamegenPath string `toml:"namegen_path"`
CustomizeScript string `toml:"customize_script"`
VSockAgent string `toml:"vsock_agent_path"`
VSockPingHelper string `toml:"vsock_ping_helper_path"`
DefaultWorkSeed string `toml:"default_work_seed"`
DefaultImageName string `toml:"default_image_name"`
DefaultRootfs string `toml:"default_rootfs"`
DefaultBaseRootfs string `toml:"default_base_rootfs"`
DefaultKernel string `toml:"default_kernel"`
DefaultInitrd string `toml:"default_initrd"`
DefaultModulesDir string `toml:"default_modules_dir"`
DefaultPackages string `toml:"default_packages_file"`
AutoStopStaleAfter string `toml:"auto_stop_stale_after"`
StatsPollInterval string `toml:"stats_poll_interval"`
MetricsPoll string `toml:"metrics_poll_interval"`
BridgeName string `toml:"bridge_name"`
BridgeIP string `toml:"bridge_ip"`
CIDR string `toml:"cidr"`
TapPoolSize int `toml:"tap_pool_size"`
DefaultDNS string `toml:"default_dns"`
RuntimeDir string `toml:"runtime_dir"`
RepoRoot string `toml:"repo_root"`
LogLevel string `toml:"log_level"`
WebListenAddr *string `toml:"web_listen_addr"`
FirecrackerBin string `toml:"firecracker_bin"`
SSHKeyPath string `toml:"ssh_key_path"`
NamegenPath string `toml:"namegen_path"`
CustomizeScript string `toml:"customize_script"`
VSockAgent string `toml:"vsock_agent_path"`
VSockPingHelper string `toml:"vsock_ping_helper_path"`
DefaultWorkSeed string `toml:"default_work_seed"`
DefaultImageName string `toml:"default_image_name"`
DefaultRootfs string `toml:"default_rootfs"`
DefaultBaseRootfs string `toml:"default_base_rootfs"`
DefaultKernel string `toml:"default_kernel"`
DefaultInitrd string `toml:"default_initrd"`
DefaultModulesDir string `toml:"default_modules_dir"`
DefaultPackages string `toml:"default_packages_file"`
AutoStopStaleAfter string `toml:"auto_stop_stale_after"`
StatsPollInterval string `toml:"stats_poll_interval"`
MetricsPoll string `toml:"metrics_poll_interval"`
BridgeName string `toml:"bridge_name"`
BridgeIP string `toml:"bridge_ip"`
CIDR string `toml:"cidr"`
TapPoolSize int `toml:"tap_pool_size"`
DefaultDNS string `toml:"default_dns"`
}
func Load(layout paths.Layout) (model.DaemonConfig, error) {
cfg := model.DaemonConfig{
LogLevel: "info",
WebListenAddr: "127.0.0.1:7777",
AutoStopStaleAfter: 0,
StatsPollInterval: model.DefaultStatsPollInterval,
MetricsPollInterval: model.DefaultMetricsPollInterval,
@ -84,6 +86,9 @@ func Load(layout paths.Layout) (model.DaemonConfig, error) {
if file.LogLevel != "" {
cfg.LogLevel = file.LogLevel
}
if file.WebListenAddr != nil {
cfg.WebListenAddr = strings.TrimSpace(*file.WebListenAddr)
}
if file.NamegenPath != "" {
cfg.NamegenPath = file.NamegenPath
}

22
internal/config/config_test.go
View file

@ -289,3 +289,25 @@ func TestLoadAcceptsLegacyConfigVsockPingHelperPath(t *testing.T) {
t.Fatalf("VSockAgentPath = %q", cfg.VSockAgentPath)
}
}
func TestLoadWebListenAddrDefaultsAndAllowsDisable(t *testing.T) {
cfg, err := Load(paths.Layout{ConfigDir: t.TempDir()})
if err != nil {
t.Fatalf("Load default config: %v", err)
}
if cfg.WebListenAddr != "127.0.0.1:7777" {
t.Fatalf("WebListenAddr = %q, want default 127.0.0.1:7777", cfg.WebListenAddr)
}
configDir := t.TempDir()
if err := os.WriteFile(filepath.Join(configDir, "config.toml"), []byte("web_listen_addr = \"\"\n"), 0o644); err != nil {
t.Fatalf("write config.toml: %v", err)
}
cfg, err = Load(paths.Layout{ConfigDir: configDir})
if err != nil {
t.Fatalf("Load disabled config: %v", err)
}
if cfg.WebListenAddr != "" {
t.Fatalf("WebListenAddr = %q, want disabled empty string", cfg.WebListenAddr)
}
}