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package cmd
import (
"fmt"
"net"
"net/http"
"net/url"
"os"
"github.com/aptly-dev/aptly/api"
"github.com/aptly-dev/aptly/systemd/activation"
"github.com/aptly-dev/aptly/utils"
"github.com/smira/commander"
"github.com/smira/flag"
)
func aptlyAPIServe(cmd *commander.Command, args []string) error {
var (
err error
)
if len(args) != 0 {
cmd.Usage()
return commander.ErrCommandError
}
// There are only two working options for aptly's rootDir:
// 1. rootDir does not exist, then we'll create it
// 2. rootDir exists and is writable
// anything else must fail.
// E.g.: Running the service under a different user may lead to a rootDir
// that exists but is not usable due to access permissions.
err = utils.DirIsAccessible(context.Config().RootDir)
if err != nil {
return err
}
// Try to recycle systemd fds for listening
listeners, err := activation.Listeners(true)
if len(listeners) > 1 {
panic("Got more than 1 listener from systemd. This is currently not supported!")
}
if err == nil && len(listeners) == 1 {
listener := listeners[0]
defer listener.Close()
fmt.Printf("\nTaking over web server at: %s (press Ctrl+C to quit)...\n", listener.Addr().String())
err = http.Serve(listener, api.Router(context))
if err != nil {
return fmt.Errorf("unable to serve: %s", err)
}
return nil
}
// If there are none: use the listen argument.
listen := context.Flags().Lookup("listen").Value.String()
fmt.Printf("\nStarting web server at: %s (press Ctrl+C to quit)...\n", listen)
listenURL, err := url.Parse(listen)
if err == nil && listenURL.Scheme == "unix" {
file := listenURL.Path
os.Remove(file)
var listener net.Listener
listener, err = net.Listen("unix", file)
if err != nil {
return fmt.Errorf("failed to listen on: %s\n%s", file, err)
}
defer listener.Close()
err = http.Serve(listener, api.Router(context))
if err != nil {
return fmt.Errorf("unable to serve: %s", err)
}
return nil
}
err = http.ListenAndServe(listen, api.Router(context))
if err != nil {
return fmt.Errorf("unable to serve: %s", err)
}
return err
}
func makeCmdAPIServe() *commander.Command {
cmd := &commander.Command{
Run: aptlyAPIServe,
UsageLine: "serve",
Short: "start API HTTP service",
Long: `
Start HTTP server with aptly REST API. The server can listen to either a port
or Unix domain socket. When using a socket, Aptly will fully manage the socket
file. This command also supports taking over from a systemd file descriptors to
enable systemd socket activation.
Example:
$ aptly api serve -listen=:8080
$ aptly api serve -listen=unix:///tmp/aptly.sock
`,
Flag: *flag.NewFlagSet("aptly-serve", flag.ExitOnError),
}
cmd.Flag.String("listen", ":8080", "host:port for HTTP listening or unix://path to listen on a Unix domain socket")
cmd.Flag.Bool("no-lock", false, "don't lock the database")
return cmd
}
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