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authorValentin Rothberg <rothberg@redhat.com>2020-09-11 11:56:18 +0200
committerValentin Rothberg <rothberg@redhat.com>2020-09-11 12:41:15 +0200
commit204493173e26fcb07362804142e3e722a657216e (patch)
treed65c2d66a736fdd66a7cb2c0f6dec91649cd767f
parent2a637948e72faf714b6497bcd57ab0f58485b096 (diff)
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remote run: fix error checks
As error types are not preserved on the client side (due to marshaling), we cannot use `errors.Cause(...)` and friends but, unfortunately, have to fall back to looking for substring the error messages. Change the error checks in remote run to do substring matches and fix issue #7340. Fixes: #7340 Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
-rw-r--r--pkg/domain/infra/tunnel/containers.go7
-rw-r--r--pkg/errorhandling/errorhandling.go8
2 files changed, 12 insertions, 3 deletions
diff --git a/pkg/domain/infra/tunnel/containers.go b/pkg/domain/infra/tunnel/containers.go
index 062b38a70..35550b9be 100644
--- a/pkg/domain/infra/tunnel/containers.go
+++ b/pkg/domain/infra/tunnel/containers.go
@@ -19,6 +19,7 @@ import (
"github.com/containers/podman/v2/pkg/bindings"
"github.com/containers/podman/v2/pkg/bindings/containers"
"github.com/containers/podman/v2/pkg/domain/entities"
+ "github.com/containers/podman/v2/pkg/errorhandling"
"github.com/containers/podman/v2/pkg/specgen"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
@@ -537,8 +538,8 @@ func (ic *ContainerEngine) ContainerRun(ctx context.Context, opts entities.Conta
// de-spaghetti the code.
defer func() {
if err := containers.Remove(ic.ClientCxt, con.ID, bindings.PFalse, bindings.PTrue); err != nil {
- if errors.Cause(err) == define.ErrNoSuchCtr ||
- errors.Cause(err) == define.ErrCtrRemoved {
+ if errorhandling.Contains(err, define.ErrNoSuchCtr) ||
+ errorhandling.Contains(err, define.ErrCtrRemoved) {
logrus.Warnf("Container %s does not exist: %v", con.ID, err)
} else {
logrus.Errorf("Error removing container %s: %v", con.ID, err)
@@ -556,7 +557,7 @@ func (ic *ContainerEngine) ContainerRun(ctx context.Context, opts entities.Conta
// Determine why the wait failed. If the container doesn't exist,
// consult the events.
- if !strings.Contains(waitErr.Error(), define.ErrNoSuchCtr.Error()) {
+ if !errorhandling.Contains(waitErr, define.ErrNoSuchCtr) {
return &report, waitErr
}
diff --git a/pkg/errorhandling/errorhandling.go b/pkg/errorhandling/errorhandling.go
index 3117b0ca4..ca6b60bc5 100644
--- a/pkg/errorhandling/errorhandling.go
+++ b/pkg/errorhandling/errorhandling.go
@@ -57,3 +57,11 @@ func CloseQuiet(f *os.File) {
logrus.Errorf("unable to close file %s: %q", f.Name(), err)
}
}
+
+// Contains checks if err's message contains sub's message. Contains should be
+// used iff either err or sub has lost type information (e.g., due to
+// marshaling). For typed errors, please use `errors.Contains(...)` or `Is()`
+// in recent version of Go.
+func Contains(err error, sub error) bool {
+ return strings.Contains(err.Error(), sub.Error())
+}