open-nomad/e2e/consul/service_revert_test.go
Seth Hoenig ca7ead191e
consul: restore consul token when reverting a job (#15996)
* consul: reset consul token on job during registration of a reversion

* e2e: add test for reverting a job with a consul service

* cl: fixup cl entry
2023-02-01 14:02:45 -06:00

86 lines
2.6 KiB
Go

package consul
import (
"context"
"testing"
"github.com/hashicorp/nomad/e2e/e2eutil"
"github.com/hashicorp/nomad/helper/uuid"
"github.com/hashicorp/nomad/nomad/structs"
"github.com/shoenig/test/must"
)
func TestConsul(t *testing.T) {
// todo: migrate the remaining consul tests
nomad := e2eutil.NomadClient(t)
e2eutil.WaitForLeader(t, nomad)
e2eutil.WaitForNodesReady(t, nomad, 1)
t.Run("testServiceReversion", testServiceReversion)
}
// testServiceReversion asserts we can
// - submit a job with a service
// - update that job and modify service
// - revert the job, restoring the original service
func testServiceReversion(t *testing.T) {
const jobFile = "./input/service_reversion.nomad"
jobID := "service-reversion-" + uuid.Short()
jobIDs := []string{jobID}
// Defer a cleanup function to remove the job. This will trigger if the
// test fails, unless the cancel function is called.
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
defer e2eutil.CleanupJobsAndGCWithContext(t, ctx, &jobIDs)
// initial register of job, with service="one"
vars := []string{"-var", "service=one"}
err := e2eutil.RegisterWithArgs(jobID, jobFile, vars...)
must.NoError(t, err)
// wait for job to be running
err = e2eutil.WaitForAllocStatusExpected(jobID, "", []string{structs.AllocClientStatusRunning})
must.NoError(t, err)
// get our consul client
consulClient := e2eutil.ConsulClient(t)
assertService := func(name string, count int) {
services, _, consulErr := consulClient.Catalog().Service(name, "", nil)
must.NoError(t, consulErr)
must.Len(t, count, services, must.Sprintf("expected %d instances of %s, got %d", count, name, len(services)))
}
// query services, assert 1 instance of "one"
assertService("one", 1)
assertService("two", 0)
// second register of job, with service="two"
vars = []string{"-var", "service=two"}
err = e2eutil.RegisterWithArgs(jobID, jobFile, vars...)
must.NoError(t, err)
// wait for job to be running
err = e2eutil.WaitForAllocStatusExpected(jobID, "", []string{structs.AllocClientStatusRunning})
must.NoError(t, err)
// query services, assert 0 instance of "one" (replaced), 1 of "two"
assertService("one", 0)
assertService("two", 1)
// now revert our job back to version 0
err = e2eutil.Revert(jobID, jobFile, 0)
must.NoError(t, err)
// wait for job to be running
err = e2eutil.WaitForAllocStatusExpected(jobID, "", []string{structs.AllocClientStatusRunning})
must.NoError(t, err)
// query services, assert 1 instance of "one" (reverted), 1 of "two" (removed)
assertService("one", 1)
assertService("two", 0)
}