ollama/gpu/assets.go
Daniel Hiltgen f56aa20014 Centralize server config handling
This moves all the env var reading into one central module
and logs the loaded config once at startup which should
help in troubleshooting user server logs
2024-05-05 16:49:50 -07:00

138 lines
3.5 KiB
Go

package gpu
import (
"errors"
"fmt"
"log/slog"
"os"
"path/filepath"
"runtime"
"strconv"
"strings"
"sync"
"syscall"
"time"
"github.com/ollama/ollama/server/envconfig"
)
var (
lock sync.Mutex
payloadsDir = ""
)
func PayloadsDir() (string, error) {
lock.Lock()
defer lock.Unlock()
var err error
if payloadsDir == "" {
runnersDir := envconfig.RunnersDir
if runnersDir != "" {
payloadsDir = runnersDir
return payloadsDir, nil
}
// The remainder only applies on non-windows where we still carry payloads in the main executable
cleanupTmpDirs()
tmpDir := envconfig.TmpDir
if tmpDir == "" {
tmpDir, err = os.MkdirTemp("", "ollama")
if err != nil {
return "", fmt.Errorf("failed to generate tmp dir: %w", err)
}
} else {
err = os.MkdirAll(tmpDir, 0755)
if err != nil {
return "", fmt.Errorf("failed to generate tmp dir %s: %w", tmpDir, err)
}
}
// Track our pid so we can clean up orphaned tmpdirs
pidFilePath := filepath.Join(tmpDir, "ollama.pid")
pidFile, err := os.OpenFile(pidFilePath, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, os.ModePerm)
if err != nil {
return "", err
}
if _, err := pidFile.Write([]byte(fmt.Sprint(os.Getpid()))); err != nil {
return "", err
}
// We create a distinct subdirectory for payloads within the tmpdir
// This will typically look like /tmp/ollama3208993108/runners on linux
payloadsDir = filepath.Join(tmpDir, "runners")
}
return payloadsDir, nil
}
// Best effort to clean up prior tmpdirs
func cleanupTmpDirs() {
dirs, err := filepath.Glob(filepath.Join(os.TempDir(), "ollama*"))
if err != nil {
return
}
for _, d := range dirs {
info, err := os.Stat(d)
if err != nil || !info.IsDir() {
continue
}
raw, err := os.ReadFile(filepath.Join(d, "ollama.pid"))
if err == nil {
pid, err := strconv.Atoi(string(raw))
if err == nil {
if proc, err := os.FindProcess(int(pid)); err == nil && !errors.Is(proc.Signal(syscall.Signal(0)), os.ErrProcessDone) {
// Another running ollama, ignore this tmpdir
continue
}
}
} else {
slog.Debug("failed to open ollama.pid", "path", d, "error", err)
}
err = os.RemoveAll(d)
if err != nil {
slog.Debug("unable to cleanup stale tmpdir", "path", d, "error", err)
}
}
}
func Cleanup() {
lock.Lock()
defer lock.Unlock()
runnersDir := envconfig.RunnersDir
if payloadsDir != "" && runnersDir == "" && runtime.GOOS != "windows" {
// We want to fully clean up the tmpdir parent of the payloads dir
tmpDir := filepath.Clean(filepath.Join(payloadsDir, ".."))
slog.Debug("cleaning up", "dir", tmpDir)
err := os.RemoveAll(tmpDir)
if err != nil {
// On windows, if we remove too quickly the llama.dll may still be in-use and fail to remove
time.Sleep(1000 * time.Millisecond)
err = os.RemoveAll(tmpDir)
if err != nil {
slog.Warn("failed to clean up", "dir", tmpDir, "err", err)
}
}
}
}
func UpdatePath(dir string) {
if runtime.GOOS == "windows" {
tmpDir := filepath.Dir(dir)
pathComponents := strings.Split(os.Getenv("PATH"), ";")
i := 0
for _, comp := range pathComponents {
if strings.EqualFold(comp, dir) {
return
}
// Remove any other prior paths to our temp dir
if !strings.HasPrefix(strings.ToLower(comp), strings.ToLower(tmpDir)) {
pathComponents[i] = comp
i++
}
}
newPath := strings.Join(append([]string{dir}, pathComponents...), ";")
slog.Info("updating", "PATH", newPath)
os.Setenv("PATH", newPath)
}
// linux and darwin rely on rpath
}