func SystemJob() *structs.Job {
job := &structs.Job{
Region: "global",
ID: structs.GenerateUUID(),
Name: "my-job",
Type: structs.JobTypeSystem,
Priority: 100,
AllAtOnce: false,
Datacenters: []string{"dc1"},
Constraints: []*structs.Constraint{
&structs.Constraint{
LTarget: "${attr.kernel.name}",
RTarget: "linux",
Operand: "=",
},
},
TaskGroups: []*structs.TaskGroup{
&structs.TaskGroup{
Name: "web",
Count: 1,
RestartPolicy: &structs.RestartPolicy{
Attempts: 3,
Interval: 10 * time.Minute,
Delay: 1 * time.Minute,
Mode: structs.RestartPolicyModeDelay,
},
LocalDisk: structs.DefaultLocalDisk(),
Tasks: []*structs.Task{
&structs.Task{
Name: "web",
Driver: "exec",
Config: map[string]interface{}{
"command": "/bin/date",
},
Env: map[string]string{},
Resources: &structs.Resources{
CPU: 500,
MemoryMB: 256,
Networks: []*structs.NetworkResource{
&structs.NetworkResource{
MBits: 50,
DynamicPorts: []structs.Port{{Label: "http"}},
},
},
},
LogConfig: structs.DefaultLogConfig(),
},
},
},
},
Meta: map[string]string{
"owner": "armon",
},
Status: structs.JobStatusPending,
CreateIndex: 42,
ModifyIndex: 99,
}
return job
}
func parseJob(result *structs.Job, list *ast.ObjectList) error {
list = list.Children()
if len(list.Items) != 1 {
return fmt.Errorf("only one 'job' block allowed")
}
// Get our job object
obj := list.Items[0]
// Decode the full thing into a map[string]interface for ease
var m map[string]interface{}
if err := hcl.DecodeObject(&m, obj.Val); err != nil {
return err
}
delete(m, "constraint")
delete(m, "meta")
delete(m, "update")
delete(m, "periodic")
// Set the ID and name to the object key
result.ID = obj.Keys[0].Token.Value().(string)
result.Name = result.ID
// Defaults
result.Priority = 50
result.Region = "global"
result.Type = "service"
// Decode the rest
if err := mapstructure.WeakDecode(m, result); err != nil {
return err
}
// Value should be an object
var listVal *ast.ObjectList
if ot, ok := obj.Val.(*ast.ObjectType); ok {
listVal = ot.List
} else {
return fmt.Errorf("job '%s' value: should be an object", result.ID)
}
// Check for invalid keys
valid := []string{
"id",
"name",
"region",
"all_at_once",
"type",
"priority",
"datacenters",
"constraint",
"update",
"periodic",
"meta",
"task",
"group",
"vault_token",
}
if err := checkHCLKeys(listVal, valid); err != nil {
return multierror.Prefix(err, "job:")
}
// Parse constraints
if o := listVal.Filter("constraint"); len(o.Items) > 0 {
if err := parseConstraints(&result.Constraints, o); err != nil {
return multierror.Prefix(err, "constraint ->")
}
}
// If we have an update strategy, then parse that
if o := listVal.Filter("update"); len(o.Items) > 0 {
if err := parseUpdate(&result.Update, o); err != nil {
return multierror.Prefix(err, "update ->")
}
}
// If we have a periodic definition, then parse that
if o := listVal.Filter("periodic"); len(o.Items) > 0 {
if err := parsePeriodic(&result.Periodic, o); err != nil {
return multierror.Prefix(err, "periodic ->")
}
}
// Parse out meta fields. These are in HCL as a list so we need
// to iterate over them and merge them.
if metaO := listVal.Filter("meta"); len(metaO.Items) > 0 {
for _, o := range metaO.Elem().Items {
var m map[string]interface{}
if err := hcl.DecodeObject(&m, o.Val); err != nil {
return err
}
if err := mapstructure.WeakDecode(m, &result.Meta); err != nil {
return err
}
}
}
// If we have tasks outside, create TaskGroups for them
if o := listVal.Filter("task"); len(o.Items) > 0 {
var tasks []*structs.Task
if err := parseTasks(result.Name, "", &tasks, o); err != nil {
return multierror.Prefix(err, "task:")
}
result.TaskGroups = make([]*structs.TaskGroup, len(tasks), len(tasks)*2)
for i, t := range tasks {
result.TaskGroups[i] = &structs.TaskGroup{
Name: t.Name,
Count: 1,
LocalDisk: structs.DefaultLocalDisk(),
Tasks: []*structs.Task{t},
}
}
}
// Parse the task groups
if o := listVal.Filter("group"); len(o.Items) > 0 {
if err := parseGroups(result, o); err != nil {
return multierror.Prefix(err, "group:")
}
}
return nil
}
func parseGroups(result *structs.Job, list *ast.ObjectList) error {
list = list.Children()
if len(list.Items) == 0 {
return nil
}
// Go through each object and turn it into an actual result.
collection := make([]*structs.TaskGroup, 0, len(list.Items))
seen := make(map[string]struct{})
for _, item := range list.Items {
n := item.Keys[0].Token.Value().(string)
// Make sure we haven't already found this
if _, ok := seen[n]; ok {
return fmt.Errorf("group '%s' defined more than once", n)
}
seen[n] = struct{}{}
// We need this later
var listVal *ast.ObjectList
if ot, ok := item.Val.(*ast.ObjectType); ok {
listVal = ot.List
} else {
return fmt.Errorf("group '%s': should be an object", n)
}
// Check for invalid keys
valid := []string{
"count",
"constraint",
"restart",
"meta",
"task",
"local_disk",
}
if err := checkHCLKeys(listVal, valid); err != nil {
return multierror.Prefix(err, fmt.Sprintf("'%s' ->", n))
}
var m map[string]interface{}
if err := hcl.DecodeObject(&m, item.Val); err != nil {
return err
}
delete(m, "constraint")
delete(m, "meta")
delete(m, "task")
delete(m, "restart")
delete(m, "local_disk")
// Default count to 1 if not specified
if _, ok := m["count"]; !ok {
m["count"] = 1
}
// Build the group with the basic decode
var g structs.TaskGroup
g.Name = n
if err := mapstructure.WeakDecode(m, &g); err != nil {
return err
}
// Parse constraints
if o := listVal.Filter("constraint"); len(o.Items) > 0 {
if err := parseConstraints(&g.Constraints, o); err != nil {
return multierror.Prefix(err, fmt.Sprintf("'%s', constraint ->", n))
}
}
// Parse restart policy
if o := listVal.Filter("restart"); len(o.Items) > 0 {
if err := parseRestartPolicy(&g.RestartPolicy, o); err != nil {
return multierror.Prefix(err, fmt.Sprintf("'%s', restart ->", n))
}
}
// Parse local disk
g.LocalDisk = structs.DefaultLocalDisk()
if o := listVal.Filter("local_disk"); len(o.Items) > 0 {
if err := parseLocalDisk(&g.LocalDisk, o); err != nil {
return multierror.Prefix(err, fmt.Sprintf("'%s', local_disk ->", n))
}
}
// Parse out meta fields. These are in HCL as a list so we need
// to iterate over them and merge them.
if metaO := listVal.Filter("meta"); len(metaO.Items) > 0 {
for _, o := range metaO.Elem().Items {
var m map[string]interface{}
if err := hcl.DecodeObject(&m, o.Val); err != nil {
return err
}
if err := mapstructure.WeakDecode(m, &g.Meta); err != nil {
return err
}
}
}
// Parse tasks
if o := listVal.Filter("task"); len(o.Items) > 0 {
if err := parseTasks(result.Name, g.Name, &g.Tasks, o); err != nil {
return multierror.Prefix(err, fmt.Sprintf("'%s', task:", n))
}
}
collection = append(collection, &g)
}
result.TaskGroups = append(result.TaskGroups, collection...)
return nil
}
func TestParse(t *testing.T) {
cases := []struct {
File string
Result *structs.Job
Err bool
}{
{
"basic.hcl",
&structs.Job{
ID: "binstore-storagelocker",
Name: "binstore-storagelocker",
Type: "service",
Priority: 50,
AllAtOnce: true,
Datacenters: []string{"us2", "eu1"},
Region: "global",
VaultToken: "foo",
Meta: map[string]string{
"foo": "bar",
},
Constraints: []*structs.Constraint{
&structs.Constraint{
LTarget: "kernel.os",
RTarget: "windows",
Operand: "=",
},
},
Update: structs.UpdateStrategy{
Stagger: 60 * time.Second,
MaxParallel: 2,
},
TaskGroups: []*structs.TaskGroup{
&structs.TaskGroup{
Name: "outside",
Count: 1,
LocalDisk: structs.DefaultLocalDisk(),
Tasks: []*structs.Task{
&structs.Task{
Name: "outside",
Driver: "java",
Config: map[string]interface{}{
"jar_path": "s3://my-cool-store/foo.jar",
},
Meta: map[string]string{
"my-cool-key": "foobar",
},
LogConfig: structs.DefaultLogConfig(),
},
},
},
&structs.TaskGroup{
Name: "binsl",
Count: 5,
Constraints: []*structs.Constraint{
&structs.Constraint{
LTarget: "kernel.os",
RTarget: "linux",
Operand: "=",
},
},
Meta: map[string]string{
"elb_mode": "tcp",
"elb_interval": "10",
"elb_checks": "3",
},
RestartPolicy: &structs.RestartPolicy{
Interval: 10 * time.Minute,
Attempts: 5,
Delay: 15 * time.Second,
Mode: "delay",
},
LocalDisk: &structs.LocalDisk{
Sticky: true,
DiskMB: 150,
},
Tasks: []*structs.Task{
&structs.Task{
Name: "binstore",
Driver: "docker",
User: "******",
Config: map[string]interface{}{
"image": "hashicorp/binstore",
"labels": []map[string]interface{}{
map[string]interface{}{
"FOO": "bar",
},
},
},
Services: []*structs.Service{
{
Name: "binstore-storagelocker-binsl-binstore",
Tags: []string{"foo", "bar"},
PortLabel: "http",
Checks: []*structs.ServiceCheck{
{
Name: "check-name",
Type: "tcp",
PortLabel: "admin",
Interval: 10 * time.Second,
Timeout: 2 * time.Second,
},
},
},
},
Env: map[string]string{
"HELLO": "world",
"LOREM": "ipsum",
},
Resources: &structs.Resources{
CPU: 500,
MemoryMB: 128,
IOPS: 0,
Networks: []*structs.NetworkResource{
&structs.NetworkResource{
MBits: 100,
ReservedPorts: []structs.Port{{"one", 1}, {"two", 2}, {"three", 3}},
DynamicPorts: []structs.Port{{"http", 0}, {"https", 0}, {"admin", 0}},
},
},
},
KillTimeout: 22 * time.Second,
LogConfig: &structs.LogConfig{
MaxFiles: 10,
MaxFileSizeMB: 100,
},
Artifacts: []*structs.TaskArtifact{
{
GetterSource: "http://foo.com/artifact",
RelativeDest: "local/",
GetterOptions: map[string]string{
"checksum": "md5:b8a4f3f72ecab0510a6a31e997461c5f",
},
},
{
GetterSource: "http://bar.com/artifact",
RelativeDest: "local/",
GetterOptions: map[string]string{
"checksum": "md5:ff1cc0d3432dad54d607c1505fb7245c",
},
},
},
Vault: &structs.Vault{
Policies: []string{"foo", "bar"},
},
},
&structs.Task{
Name: "storagelocker",
Driver: "docker",
User: "",
Config: map[string]interface{}{
"image": "hashicorp/storagelocker",
},
Resources: &structs.Resources{
CPU: 500,
MemoryMB: 128,
IOPS: 30,
},
Constraints: []*structs.Constraint{
&structs.Constraint{
LTarget: "kernel.arch",
RTarget: "amd64",
Operand: "=",
},
},
LogConfig: structs.DefaultLogConfig(),
},
},
},
},
},
false,
},
{
"multi-network.hcl",
nil,
true,
},
{
"multi-resource.hcl",
nil,
true,
},
{
"multi-vault.hcl",
nil,
true,
},
{
"default-job.hcl",
&structs.Job{
ID: "foo",
Name: "foo",
Priority: 50,
Region: "global",
Type: "service",
},
false,
},
{
"version-constraint.hcl",
&structs.Job{
ID: "foo",
Name: "foo",
Priority: 50,
Region: "global",
Type: "service",
Constraints: []*structs.Constraint{
&structs.Constraint{
LTarget: "$attr.kernel.version",
RTarget: "~> 3.2",
Operand: structs.ConstraintVersion,
},
},
},
false,
},
{
"regexp-constraint.hcl",
&structs.Job{
ID: "foo",
Name: "foo",
Priority: 50,
Region: "global",
Type: "service",
Constraints: []*structs.Constraint{
&structs.Constraint{
LTarget: "$attr.kernel.version",
RTarget: "[0-9.]+",
Operand: structs.ConstraintRegex,
},
},
},
false,
},
{
"distinctHosts-constraint.hcl",
&structs.Job{
ID: "foo",
Name: "foo",
Priority: 50,
Region: "global",
Type: "service",
Constraints: []*structs.Constraint{
&structs.Constraint{
Operand: structs.ConstraintDistinctHosts,
},
},
},
false,
},
{
"periodic-cron.hcl",
&structs.Job{
ID: "foo",
Name: "foo",
Priority: 50,
Region: "global",
Type: "service",
Periodic: &structs.PeriodicConfig{
Enabled: true,
SpecType: structs.PeriodicSpecCron,
Spec: "*/5 * * *",
ProhibitOverlap: true,
},
},
false,
},
{
"specify-job.hcl",
&structs.Job{
ID: "job1",
Name: "My Job",
Priority: 50,
Region: "global",
Type: "service",
},
false,
},
{
"task-nested-config.hcl",
&structs.Job{
Region: "global",
ID: "foo",
Name: "foo",
Type: "service",
Priority: 50,
TaskGroups: []*structs.TaskGroup{
&structs.TaskGroup{
Name: "bar",
Count: 1,
LocalDisk: structs.DefaultLocalDisk(),
Tasks: []*structs.Task{
&structs.Task{
Name: "bar",
Driver: "docker",
Config: map[string]interface{}{
"image": "hashicorp/image",
"port_map": []map[string]interface{}{
map[string]interface{}{
"db": 1234,
},
},
},
LogConfig: &structs.LogConfig{
MaxFiles: 10,
MaxFileSizeMB: 10,
},
},
},
},
},
},
false,
},
{
"bad-artifact.hcl",
nil,
true,
},
{
"artifacts.hcl",
&structs.Job{
ID: "binstore-storagelocker",
Name: "binstore-storagelocker",
Type: "service",
Priority: 50,
Region: "global",
TaskGroups: []*structs.TaskGroup{
&structs.TaskGroup{
Name: "binsl",
Count: 1,
LocalDisk: structs.DefaultLocalDisk(),
Tasks: []*structs.Task{
&structs.Task{
Name: "binstore",
Driver: "docker",
Resources: &structs.Resources{
CPU: 100,
MemoryMB: 10,
IOPS: 0,
},
LogConfig: &structs.LogConfig{
MaxFiles: 10,
MaxFileSizeMB: 10,
},
Artifacts: []*structs.TaskArtifact{
{
GetterSource: "http://foo.com/bar",
GetterOptions: map[string]string{"foo": "bar"},
RelativeDest: "",
},
{
GetterSource: "http://foo.com/baz",
GetterOptions: nil,
RelativeDest: "local/",
},
{
GetterSource: "http://foo.com/bam",
GetterOptions: nil,
RelativeDest: "var/foo",
},
},
},
},
},
},
},
false,
},
{
"service-check-initial-status.hcl",
&structs.Job{
ID: "check_initial_status",
Name: "check_initial_status",
Type: "service",
Priority: 50,
Region: "global",
TaskGroups: []*structs.TaskGroup{
&structs.TaskGroup{
Name: "group",
Count: 1,
LocalDisk: structs.DefaultLocalDisk(),
Tasks: []*structs.Task{
&structs.Task{
Name: "task",
Services: []*structs.Service{
{
Name: "check_initial_status-group-task",
Tags: []string{"foo", "bar"},
PortLabel: "http",
Checks: []*structs.ServiceCheck{
{
Name: "check-name",
Type: "http",
Interval: 10 * time.Second,
Timeout: 2 * time.Second,
InitialStatus: api.HealthPassing,
},
},
},
},
LogConfig: structs.DefaultLogConfig(),
},
},
},
},
},
false,
},
}
for _, tc := range cases {
t.Logf("Testing parse: %s", tc.File)
path, err := filepath.Abs(filepath.Join("./test-fixtures", tc.File))
if err != nil {
t.Fatalf("file: %s\n\n%s", tc.File, err)
continue
}
actual, err := ParseFile(path)
if (err != nil) != tc.Err {
t.Fatalf("file: %s\n\n%s", tc.File, err)
continue
}
if !reflect.DeepEqual(actual, tc.Result) {
t.Fatalf("file: %s\n\n%#v\n\n%#v", tc.File, actual, tc.Result)
}
}
}