open-nomad/e2e/hostvolumes/host_volumes.go
2019-09-18 00:34:48 +02:00

133 lines
3.4 KiB
Go

package hostvolumes
import (
"time"
"github.com/hashicorp/nomad/e2e/e2eutil"
"github.com/hashicorp/nomad/e2e/framework"
"github.com/hashicorp/nomad/helper/uuid"
"github.com/hashicorp/nomad/nomad/structs"
"github.com/stretchr/testify/require"
)
type BasicHostVolumeTest struct {
framework.TC
jobIds []string
}
func init() {
framework.AddSuites(&framework.TestSuite{
Component: "Host Volumes",
CanRunLocal: true,
Cases: []framework.TestCase{
new(BasicHostVolumeTest),
},
})
}
func (tc *BasicHostVolumeTest) BeforeAll(f *framework.F) {
// Ensure cluster has leader before running tests
e2eutil.WaitForLeader(f.T(), tc.Nomad())
// Ensure that we have at least 1 client nodes in ready state
e2eutil.WaitForNodesReady(f.T(), tc.Nomad(), 1)
}
func (tc *BasicHostVolumeTest) TestSingleHostVolume(f *framework.F) {
require := require.New(f.T())
nomadClient := tc.Nomad()
uuid := uuid.Generate()
jobID := "hostvol" + uuid[0:8]
tc.jobIds = append(tc.jobIds, jobID)
allocs := e2eutil.RegisterAndWaitForAllocs(f.T(), nomadClient, "hostvolumes/input/single_mount.nomad", jobID)
waitForTaskState := func(desiredState string) {
require.Eventually(func() bool {
allocs, _, _ := nomadClient.Jobs().Allocations(jobID, false, nil)
if len(allocs) != 1 {
return false
}
first := allocs[0]
taskState := first.TaskStates["test"]
if taskState == nil {
return false
}
return taskState.State == desiredState
}, 30*time.Second, 1*time.Second)
}
waitForClientAllocStatus := func(desiredStatus string) {
require.Eventually(func() bool {
allocSummaries, _, _ := nomadClient.Jobs().Allocations(jobID, false, nil)
if len(allocSummaries) != 1 {
return false
}
alloc, _, _ := nomadClient.Allocations().Info(allocSummaries[0].ID, nil)
if alloc == nil {
return false
}
return alloc.ClientStatus == desiredStatus
}, 30*time.Second, 1*time.Second)
}
waitForRestartCount := func(desiredCount uint64) {
require.Eventually(func() bool {
allocs, _, _ := nomadClient.Jobs().Allocations(jobID, false, nil)
if len(allocs) != 1 {
return false
}
first := allocs[0]
return first.TaskStates["test"].Restarts == desiredCount
}, 30*time.Second, 1*time.Second)
}
// Verify scheduling
for _, allocStub := range allocs {
node, _, err := nomadClient.Nodes().Info(allocStub.NodeID, nil)
require.Nil(err)
_, ok := node.HostVolumes["shared_data"]
require.True(ok, "Node does not have the requested volume")
}
// Wrap in retry to wait until running
waitForTaskState(structs.TaskStateRunning)
// Client should be running
waitForClientAllocStatus(structs.AllocClientStatusRunning)
// Should not be restarted
waitForRestartCount(0)
// Ensure allocs can be restarted
for _, allocStub := range allocs {
alloc, _, err := nomadClient.Allocations().Info(allocStub.ID, nil)
require.Nil(err)
err = nomadClient.Allocations().Restart(alloc, "", nil)
require.Nil(err)
}
// Should be restarted once
waitForRestartCount(1)
// Wrap in retry to wait until running again
waitForTaskState(structs.TaskStateRunning)
// Client should be running again
waitForClientAllocStatus(structs.AllocClientStatusRunning)
}
func (tc *BasicHostVolumeTest) AfterEach(f *framework.F) {
nomadClient := tc.Nomad()
jobs := nomadClient.Jobs()
// Stop all jobs in test
for _, id := range tc.jobIds {
jobs.Deregister(id, true, nil)
}
// Garbage collect
nomadClient.System().GarbageCollect()
}