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Fix panic (npe) when updating service limits/reservations 

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 579bb91853)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Sebastiaan van Stijn 2018-12-13 01:58:12 +01:00
parent 2aa77af30f
commit 16349f6e33
No known key found for this signature in database
GPG Key ID: 76698F39D527CE8C
2 changed files with 40 additions and 2 deletions
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6
cli/command/service/update.go
View File

@ -302,6 +302,12 @@ func updateService(ctx context.Context, apiClient client.NetworkAPIClient, flags
if task.Resources == nil {
task.Resources = &swarm.ResourceRequirements{}
}
if task.Resources.Limits == nil {
task.Resources.Limits = &swarm.Resources{}
}
if task.Resources.Reservations == nil {
task.Resources.Reservations = &swarm.Resources{}
}
return task.Resources
}

36
cli/command/service/update_test.go
View File

@ -617,6 +617,38 @@ func TestUpdateIsolationValid(t *testing.T) {
// and that values are not updated are not reset to their default value
func TestUpdateLimitsReservations(t *testing.T) {
spec := swarm.ServiceSpec{
TaskTemplate: swarm.TaskSpec{
ContainerSpec: &swarm.ContainerSpec{},
},
}
// test that updating works if the service did not previously
// have limits set (https://github.com/moby/moby/issues/38363)
flags := newUpdateCommand(nil).Flags()
err := flags.Set(flagLimitCPU, "2")
assert.NilError(t, err)
err = flags.Set(flagLimitMemory, "200M")
assert.NilError(t, err)
err = updateService(context.Background(), nil, flags, &spec)
assert.NilError(t, err)
spec = swarm.ServiceSpec{
TaskTemplate: swarm.TaskSpec{
ContainerSpec: &swarm.ContainerSpec{},
},
}
// test that updating works if the service did not previously
// have reservations set (https://github.com/moby/moby/issues/38363)
flags = newUpdateCommand(nil).Flags()
err = flags.Set(flagReserveCPU, "2")
assert.NilError(t, err)
err = flags.Set(flagReserveMemory, "200M")
assert.NilError(t, err)
err = updateService(context.Background(), nil, flags, &spec)
assert.NilError(t, err)
spec = swarm.ServiceSpec{
TaskTemplate: swarm.TaskSpec{
ContainerSpec: &swarm.ContainerSpec{},
Resources: &swarm.ResourceRequirements{
@ -632,8 +664,8 @@ func TestUpdateLimitsReservations(t *testing.T) {
},
}
flags := newUpdateCommand(nil).Flags()
err := flags.Set(flagLimitCPU, "2")
flags = newUpdateCommand(nil).Flags()
err = flags.Set(flagLimitCPU, "2")
assert.NilError(t, err)
err = flags.Set(flagReserveCPU, "2")
assert.NilError(t, err)