mirror of
https://github.com/containers/podman.git
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2c63b8439b
Podman adds an Error: to every error message. So starting an error message with "error" ends up being reported to the user as Error: error ... This patch removes the stutter. Also ioutil.ReadFile errors report the Path, so wrapping the err message with the path causes a stutter. Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
114 lines
2.8 KiB
Go
114 lines
2.8 KiB
Go
package containers
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import (
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"bytes"
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"context"
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"errors"
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"fmt"
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"net/http"
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"strings"
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"github.com/containers/podman/v4/libpod/define"
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"github.com/containers/podman/v4/pkg/api/handlers"
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"github.com/containers/podman/v4/pkg/bindings"
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"github.com/containers/podman/v4/pkg/domain/entities"
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jsoniter "github.com/json-iterator/go"
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"github.com/sirupsen/logrus"
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)
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var json = jsoniter.ConfigCompatibleWithStandardLibrary
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// ExecCreate creates a new exec session in an existing container.
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// The exec session will not be started; that is done with ExecStart.
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// Returns ID of new exec session, or an error if one occurred.
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func ExecCreate(ctx context.Context, nameOrID string, config *handlers.ExecCreateConfig) (string, error) {
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conn, err := bindings.GetClient(ctx)
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if err != nil {
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return "", err
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}
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if config == nil {
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return "", errors.New("must provide a configuration for exec session")
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}
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requestJSON, err := json.Marshal(config)
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if err != nil {
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return "", fmt.Errorf("marshalling exec config to JSON: %w", err)
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}
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jsonReader := strings.NewReader(string(requestJSON))
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resp, err := conn.DoRequest(ctx, jsonReader, http.MethodPost, "/containers/%s/exec", nil, nil, nameOrID)
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if err != nil {
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return "", err
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}
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defer resp.Body.Close()
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respStruct := new(entities.IDResponse)
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if err := resp.Process(respStruct); err != nil {
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return "", err
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}
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return respStruct.ID, nil
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}
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// ExecInspect inspects an existing exec session, returning detailed information
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// about it.
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func ExecInspect(ctx context.Context, sessionID string, options *ExecInspectOptions) (*define.InspectExecSession, error) {
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if options == nil {
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options = new(ExecInspectOptions)
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}
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_ = options
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conn, err := bindings.GetClient(ctx)
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if err != nil {
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return nil, err
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}
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logrus.Debugf("Inspecting session ID %q", sessionID)
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resp, err := conn.DoRequest(ctx, nil, http.MethodGet, "/exec/%s/json", nil, nil, sessionID)
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if err != nil {
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return nil, err
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}
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defer resp.Body.Close()
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respStruct := new(define.InspectExecSession)
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if err := resp.Process(respStruct); err != nil {
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return nil, err
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}
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return respStruct, nil
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}
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// ExecStart starts (but does not attach to) a given exec session.
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func ExecStart(ctx context.Context, sessionID string, options *ExecStartOptions) error {
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if options == nil {
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options = new(ExecStartOptions)
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}
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_ = options
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conn, err := bindings.GetClient(ctx)
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if err != nil {
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return err
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}
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logrus.Debugf("Starting exec session ID %q", sessionID)
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// We force Detach to true
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body := struct {
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Detach bool `json:"Detach"`
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}{
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Detach: true,
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}
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bodyJSON, err := json.Marshal(body)
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if err != nil {
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return err
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}
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resp, err := conn.DoRequest(ctx, bytes.NewReader(bodyJSON), http.MethodPost, "/exec/%s/start", nil, nil, sessionID)
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if err != nil {
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return err
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}
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defer resp.Body.Close()
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return resp.Process(nil)
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}
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