parent
7e92ccf2af
commit
e30ecb8abe
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@ -29,5 +29,6 @@ var AppCommand = cli.Command{
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appVolumeCommand,
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appVersionCommand,
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appErrorsCommand,
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appCmdCommand,
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},
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}
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@ -0,0 +1,214 @@
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package app
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import (
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"context"
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"errors"
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"fmt"
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"io/ioutil"
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"os"
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"os/exec"
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"path"
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"strings"
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"coopcloud.tech/abra/cli/internal"
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"coopcloud.tech/abra/pkg/autocomplete"
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"coopcloud.tech/abra/pkg/client"
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"coopcloud.tech/abra/pkg/config"
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containerPkg "coopcloud.tech/abra/pkg/container"
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"coopcloud.tech/abra/pkg/formatter"
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"coopcloud.tech/abra/pkg/upstream/container"
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"github.com/docker/cli/cli/command"
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"github.com/docker/docker/api/types"
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"github.com/docker/docker/api/types/filters"
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"github.com/docker/docker/pkg/archive"
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"github.com/sirupsen/logrus"
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"github.com/urfave/cli"
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)
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var localCmd bool
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var localCmdFlag = &cli.BoolFlag{
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Name: "local, l",
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Usage: "Run command locally",
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Destination: &localCmd,
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}
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var appCmdCommand = cli.Command{
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Name: "command",
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Aliases: []string{"cmd"},
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Usage: "Run app commands",
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Description: `
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This command runs app specific commands.
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These commands are bash functions, defined in the abra.sh of the recipe itself.
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They can be run within the context of a service (e.g. app) or locally on your
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work station by passing "--local". Arguments can be passed into these functions
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using the "-- <args>" syntax.
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Example:
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abra app cmd example.com app create_user -- me@example.com
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`,
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ArgsUsage: "<domain> [<service>] <command>",
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Flags: []cli.Flag{
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internal.DebugFlag,
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localCmdFlag,
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},
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BashComplete: autocomplete.AppNameComplete,
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Before: internal.SubCommandBefore,
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Action: func(c *cli.Context) error {
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app := internal.ValidateApp(c)
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if len(c.Args()) <= 2 && !localCmd {
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internal.ShowSubcommandHelpAndError(c, errors.New("missing <service>/<command>? did you mean to pass --local?"))
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}
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if len(c.Args()) > 2 && localCmd {
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internal.ShowSubcommandHelpAndError(c, errors.New("cannot specify <service> and --local together"))
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}
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abraSh := path.Join(config.RECIPES_DIR, app.Recipe, "abra.sh")
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if _, err := os.Stat(abraSh); err != nil {
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if os.IsNotExist(err) {
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logrus.Fatalf("%s does not exist for %s?", abraSh, app.Name)
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}
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logrus.Fatal(err)
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}
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if localCmd {
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cmdName := c.Args().Get(1)
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if err := ensureCommand(abraSh, app.Recipe, cmdName); err != nil {
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logrus.Fatal(err)
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}
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logrus.Debugf("--local detected, running %s on local work station", cmdName)
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sourceAndExec := fmt.Sprintf("export TARGET=local; . %s; %s", abraSh, cmdName)
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cmd := exec.Command("/bin/sh", "-c", sourceAndExec)
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if err := internal.RunCmd(cmd); err != nil {
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logrus.Fatal(err)
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}
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} else {
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targetServiceName := c.Args().Get(1)
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cmdName := c.Args().Get(2)
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if err := ensureCommand(abraSh, app.Recipe, cmdName); err != nil {
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logrus.Fatal(err)
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}
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serviceNames, err := config.GetAppServiceNames(app.Name)
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if err != nil {
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logrus.Fatal(err)
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}
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matchingServiceName := false
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for _, serviceName := range serviceNames {
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if serviceName == targetServiceName {
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matchingServiceName = true
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}
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}
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if !matchingServiceName {
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logrus.Fatalf("no service %s for %s?", targetServiceName, app.Name)
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}
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logrus.Debugf("running command %s within the context of %s_%s", cmdName, app.StackName(), targetServiceName)
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var parsedCmdArgs string
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var cmdArgsIdx int
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var hasCmdArgs bool
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for idx, arg := range c.Args() {
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if arg == "--" {
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cmdArgsIdx = idx
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hasCmdArgs = true
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}
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if hasCmdArgs && idx > cmdArgsIdx {
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parsedCmdArgs += fmt.Sprintf("%s ", c.Args().Get(idx))
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}
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}
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if hasCmdArgs {
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logrus.Debug("parsed following command arguments: %s", parsedCmdArgs)
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} else {
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logrus.Debug("did not detect any command arguments")
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}
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if err := runCmdRemote(app, abraSh, targetServiceName, cmdName, parsedCmdArgs); err != nil {
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logrus.Fatal(err)
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}
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}
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return nil
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},
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}
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func ensureCommand(abraSh, recipeName, execCmd string) error {
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bytes, err := ioutil.ReadFile(abraSh)
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if err != nil {
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return err
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}
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if !strings.Contains(string(bytes), execCmd) {
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return fmt.Errorf("%s doesn't have a %s function", recipeName, execCmd)
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}
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return nil
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}
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func runCmdRemote(app config.App, abraSh, serviceName, cmdName, cmdArgs string) error {
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cl, err := client.New(app.Server)
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if err != nil {
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return err
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}
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filters := filters.NewArgs()
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filters.Add("name", fmt.Sprintf("^%s_%s", app.StackName(), serviceName))
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targetContainer, err := containerPkg.GetContainer(context.Background(), cl, filters, true)
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if err != nil {
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return err
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}
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logrus.Debugf("retrieved %s as target container on %s", formatter.ShortenID(targetContainer.ID), app.Server)
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toTarOpts := &archive.TarOptions{NoOverwriteDirNonDir: true, Compression: archive.Gzip}
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content, err := archive.TarWithOptions(abraSh, toTarOpts)
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if err != nil {
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return err
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}
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copyOpts := types.CopyToContainerOptions{AllowOverwriteDirWithFile: false, CopyUIDGID: false}
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if err := cl.CopyToContainer(context.Background(), targetContainer.ID, "/tmp", content, copyOpts); err != nil {
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return err
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}
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var cmd []string
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if cmdArgs != "" {
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cmd = []string{"/bin/sh", "-c", fmt.Sprintf("TARGET=%s; . /tmp/abra.sh; %s %s", serviceName, cmdName, cmdArgs)}
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} else {
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cmd = []string{"/bin/sh", "-c", fmt.Sprintf("TARGET=%s; . /tmp/abra.sh; %s", serviceName, cmdName)}
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}
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logrus.Debugf("running command: %s", strings.Join(cmd, " "))
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execCreateOpts := types.ExecConfig{
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AttachStderr: true,
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AttachStdin: true,
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AttachStdout: true,
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Cmd: cmd,
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Detach: false,
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Tty: true,
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}
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// FIXME: avoid instantiating a new CLI
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dcli, err := command.NewDockerCli()
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if err != nil {
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return err
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}
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if err := container.RunExec(dcli, cl, targetContainer.ID, &execCreateOpts); err != nil {
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return err
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}
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return nil
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}
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