compose: try all possible providers before throwing an error

Do not error out immediately but collect all errors and report them if
no candidate succeeded.  That'll fix #20502 and improve the quality of
reported errors.

[NO NEW TESTS NEEDED]

Fixes: #20502
Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
This commit is contained in:
Valentin Rothberg
2023-10-27 10:12:30 +02:00
committed by openshift-cherrypick-robot
parent afb7d7e52b
commit 4efa973a3a

View File

@ -17,6 +17,7 @@ import (
"github.com/containers/common/pkg/config"
"github.com/containers/podman/v4/cmd/podman/registry"
"github.com/containers/podman/v4/pkg/errorhandling"
"github.com/containers/podman/v4/pkg/machine"
"github.com/containers/podman/v4/pkg/machine/provider"
"github.com/sirupsen/logrus"
@ -85,20 +86,19 @@ func composeProvider() (string, error) {
return "", errors.New("no compose provider specified, please refer to `man podman-compose` for details")
}
lookupErrors := make([]error, 0, len(candidates))
for _, candidate := range candidates {
path, err := exec.LookPath(os.ExpandEnv(candidate))
if err != nil {
if errors.Is(err, os.ErrNotExist) {
continue
}
return "", err
if err == nil {
// First specified provider "candidate" wins.
logrus.Debugf("Found compose provider %q", path)
return path, nil
}
// First specified provider "candidate" wins.
logrus.Debugf("Found compose provider %q", path)
return path, nil
logrus.Debugf("Error looking up compose provider %q: %v", path, err)
lookupErrors = append(lookupErrors, err)
}
return "", errors.New("no configured compose provider found on system, please refer to the documentation for details")
return "", fmt.Errorf("looking up compose provider failed\n%v", errorhandling.JoinErrors(lookupErrors))
}
// composeDockerHost returns the value to be set in the DOCKER_HOST environment