open-nomad/e2e/framework/provisioner.go

147 lines
5.3 KiB
Go

package framework
import (
"fmt"
"os"
"testing"
capi "github.com/hashicorp/consul/api"
napi "github.com/hashicorp/nomad/api"
"github.com/hashicorp/nomad/helper/useragent"
"github.com/hashicorp/nomad/helper/uuid"
vapi "github.com/hashicorp/vault/api"
)
// ClusterInfo is a handle to a provisioned cluster, along with clients
// a test run can use to connect to the cluster.
//
// Deprecated: no longer use e2e/framework for new tests; see TestExample for new e2e test structure.
type ClusterInfo struct {
ID string
Name string
NomadClient *napi.Client
ConsulClient *capi.Client
VaultClient *vapi.Client
}
// SetupOptions defines options to be given to the Provisioner when
// calling Setup* methods.
//
// Deprecated: no longer use e2e/framework for new tests; see TestExample for new e2e test structure.
type SetupOptions struct {
Name string
ExpectConsul bool // If true, fails if a Consul client can't be configured
ExpectVault bool // If true, fails if a Vault client can't be configured
}
// Provisioner interface is used by the test framework to provision API
// clients for a Nomad cluster, with the possibility of extending to provision
// standalone clusters for each test case in the future.
//
// The Setup* methods are hooks that get run at the appropriate stage. They
// return a ClusterInfo handle that helps TestCases isolate test state if
// they use the ClusterInfo.ID as part of job IDs.
//
// The TearDown* methods are hooks to clean up provisioned cluster state
// that isn't covered by the test case's implementation of AfterEachTest.
//
// Deprecated: no longer use e2e/framework for new tests; see TestExample for new e2e test structure.
type Provisioner interface {
// SetupTestRun is called at the start of the entire test run.
SetupTestRun(t *testing.T, opts SetupOptions) (*ClusterInfo, error)
// SetupTestSuite is called at the start of each TestSuite.
// TODO: no current provisioner implementation uses this, but we
// could use it to provide each TestSuite with an entirely separate
// Nomad cluster.
SetupTestSuite(t *testing.T, opts SetupOptions) (*ClusterInfo, error)
// SetupTestCase is called at the start of each TestCase in every TestSuite.
SetupTestCase(t *testing.T, opts SetupOptions) (*ClusterInfo, error)
// TODO: no current provisioner implementation uses any of these,
// but it's the obvious need if we setup/teardown after each TestSuite
// or TestCase.
// TearDownTestCase is called after each TestCase in every TestSuite.
TearDownTestCase(t *testing.T, clusterID string) error
// TearDownTestSuite is called after every TestSuite.
TearDownTestSuite(t *testing.T, clusterID string) error
// TearDownTestRun is called at the end of the entire test run.
TearDownTestRun(t *testing.T, clusterID string) error
}
// DefaultProvisioner is a Provisioner that doesn't deploy a Nomad cluster
// (because that's handled by Terraform elsewhere), but build clients from
// environment variables.
//
// Deprecated: no longer use e2e/framework for new tests; see TestExample for new e2e test structure.
var DefaultProvisioner Provisioner = new(singleClusterProvisioner)
type singleClusterProvisioner struct{}
// SetupTestRun in the default case is a no-op.
func (p *singleClusterProvisioner) SetupTestRun(t *testing.T, opts SetupOptions) (*ClusterInfo, error) {
return &ClusterInfo{ID: "framework", Name: "framework"}, nil
}
// SetupTestSuite in the default case is a no-op.
func (p *singleClusterProvisioner) SetupTestSuite(t *testing.T, opts SetupOptions) (*ClusterInfo, error) {
return &ClusterInfo{
ID: uuid.Generate()[:8],
Name: opts.Name,
}, nil
}
// SetupTestCase in the default case only creates new clients and embeds the
// TestCase name into the ClusterInfo handle.
func (p *singleClusterProvisioner) SetupTestCase(t *testing.T, opts SetupOptions) (*ClusterInfo, error) {
// Build ID based off given name
info := &ClusterInfo{
ID: uuid.Generate()[:8],
Name: opts.Name,
}
// Build Nomad api client
nomadClient, err := napi.NewClient(napi.DefaultConfig())
if err != nil {
return nil, err
}
info.NomadClient = nomadClient
if opts.ExpectConsul {
consulClient, err := capi.NewClient(capi.DefaultConfig())
if err != nil {
return nil, fmt.Errorf("expected Consul: %v", err)
}
info.ConsulClient = consulClient
}
if len(os.Getenv(vapi.EnvVaultAddress)) != 0 {
vaultClient, err := vapi.NewClient(vapi.DefaultConfig())
if err != nil && opts.ExpectVault {
return nil, err
}
useragent.SetHeaders(vaultClient)
info.VaultClient = vaultClient
} else if opts.ExpectVault {
return nil, fmt.Errorf("vault client expected but environment variable %s not set",
vapi.EnvVaultAddress)
}
return info, err
}
// all TearDown* methods of the default provisioner leave the test environment in place
// Deprecated: no longer use e2e/framework for new tests; see TestExample for new e2e test structure.
func (p *singleClusterProvisioner) TearDownTestCase(_ *testing.T, _ string) error { return nil }
// Deprecated: no longer use e2e/framework for new tests; see TestExample for new e2e test structure.
func (p *singleClusterProvisioner) TearDownTestSuite(_ *testing.T, _ string) error { return nil }
// Deprecated: no longer use e2e/framework for new tests; see TestExample for new e2e test structure.
func (p *singleClusterProvisioner) TearDownTestRun(_ *testing.T, _ string) error { return nil }