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virtcontainers: cleanup the container config once failed

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When create container failed, it should delete the container
config from sandbox, otherwise, the following new creating container
would get a wrong resources caculating which would contain the previous
failed container resources such as memory and cpu.

Fixes: #1997

Signed-off-by: lifupan <lifupan@gmail.com>
This commit is contained in:
lifupan 2019-08-22 13:43:42 +08:00
parent 5b749a56d8
commit 52e68f5fce
2 changed files with 15 additions and 2 deletions
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11
virtcontainers/sandbox.go
View File

@ -1116,6 +1116,13 @@ func (s *Sandbox) CreateContainer(contConfig ContainerConfig) (VCContainer, erro
// Update sandbox config.
s.config.Containers = append(s.config.Containers, contConfig)
defer func() {
if err != nil && len(s.config.Containers) > 0 {
// delete container config
s.config.Containers = s.config.Containers[:len(s.config.Containers)-1]
}
}()
// Sandbox is reponsable to update VM resources needed by Containers
err = s.updateResources()
if err != nil {
@ -1128,7 +1135,7 @@ func (s *Sandbox) CreateContainer(contConfig ContainerConfig) (VCContainer, erro
}
// Add the container to the containers list in the sandbox.
if err := s.addContainer(c); err != nil {
if err = s.addContainer(c); err != nil {
return nil, err
}
@ -1138,7 +1145,7 @@ func (s *Sandbox) CreateContainer(contConfig ContainerConfig) (VCContainer, erro
return nil, err
}
if err := s.updateCgroups(); err != nil {
if err = s.updateCgroups(); err != nil {
return nil, err
}

6
virtcontainers/sandbox_test.go
View File

@ -909,6 +909,12 @@ func TestCreateContainer(t *testing.T) {
contConfig := newTestContainerConfigNoop(contID)
_, err = s.CreateContainer(contConfig)
assert.Nil(t, err, "Failed to create container %+v in sandbox %+v: %v", contConfig, s, err)
assert.Equal(t, len(s.config.Containers), 1, "Container config list length from sandbox structure should be 1")
_, err = s.CreateContainer(contConfig)
assert.NotNil(t, err, "Should failed to create a duplicated container")
assert.Equal(t, len(s.config.Containers), 1, "Container config list length from sandbox structure should be 1")
}
func TestDeleteContainer(t *testing.T) {