daf1c8a0f6
Variables that are unset return the correct diagnostic but throw a panic when we later parse the job body. Return early if there are any variable parsing errors instead of continuing in a potentially invalid state.
847 lines
16 KiB
Go
847 lines
16 KiB
Go
package jobspec2
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import (
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"io/ioutil"
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"os"
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"strings"
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"testing"
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"github.com/hashicorp/nomad/api"
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"github.com/hashicorp/nomad/jobspec"
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"github.com/stretchr/testify/require"
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)
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func TestEquivalentToHCL1(t *testing.T) {
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hclSpecDir := "../jobspec/test-fixtures/"
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fis, err := ioutil.ReadDir(hclSpecDir)
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require.NoError(t, err)
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for _, fi := range fis {
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name := fi.Name()
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t.Run(name, func(t *testing.T) {
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f, err := os.Open(hclSpecDir + name)
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require.NoError(t, err)
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defer f.Close()
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job1, err := jobspec.Parse(f)
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if err != nil {
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t.Skip("file is not parsable in v1")
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}
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f.Seek(0, 0)
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job2, err := Parse(name, f)
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require.NoError(t, err)
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require.Equal(t, job1, job2)
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})
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}
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}
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func TestEquivalentToHCL1_ComplexConfig(t *testing.T) {
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name := "./test-fixtures/config-compatibility.hcl"
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f, err := os.Open(name)
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require.NoError(t, err)
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defer f.Close()
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job1, err := jobspec.Parse(f)
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require.NoError(t, err)
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f.Seek(0, 0)
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job2, err := Parse(name, f)
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require.NoError(t, err)
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require.Equal(t, job1, job2)
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}
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func TestParse_VarsAndFunctions(t *testing.T) {
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hcl := `
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variables {
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region_var = "default"
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}
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job "example" {
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datacenters = [for s in ["dc1", "dc2"] : upper(s)]
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region = var.region_var
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}
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`
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out, err := ParseWithConfig(&ParseConfig{
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Path: "input.hcl",
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Body: []byte(hcl),
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ArgVars: []string{"region_var=aug"},
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AllowFS: true,
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})
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require.NoError(t, err)
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require.Equal(t, []string{"DC1", "DC2"}, out.Datacenters)
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require.NotNil(t, out.Region)
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require.Equal(t, "aug", *out.Region)
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}
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func TestParse_VariablesDefaultsAndSet(t *testing.T) {
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hcl := `
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variables {
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region_var = "default_region"
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}
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variable "dc_var" {
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default = "default_dc"
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}
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job "example" {
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datacenters = [var.dc_var]
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region = var.region_var
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}
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`
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t.Run("defaults", func(t *testing.T) {
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out, err := ParseWithConfig(&ParseConfig{
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Path: "input.hcl",
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Body: []byte(hcl),
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AllowFS: true,
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})
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require.NoError(t, err)
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require.Equal(t, []string{"default_dc"}, out.Datacenters)
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require.NotNil(t, out.Region)
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require.Equal(t, "default_region", *out.Region)
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})
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t.Run("set via -var args", func(t *testing.T) {
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out, err := ParseWithConfig(&ParseConfig{
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Path: "input.hcl",
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Body: []byte(hcl),
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ArgVars: []string{"dc_var=set_dc", "region_var=set_region"},
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AllowFS: true,
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})
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require.NoError(t, err)
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require.Equal(t, []string{"set_dc"}, out.Datacenters)
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require.NotNil(t, out.Region)
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require.Equal(t, "set_region", *out.Region)
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})
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t.Run("set via envvars", func(t *testing.T) {
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out, err := ParseWithConfig(&ParseConfig{
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Path: "input.hcl",
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Body: []byte(hcl),
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Envs: []string{
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"NOMAD_VAR_dc_var=set_dc",
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"NOMAD_VAR_region_var=set_region",
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},
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AllowFS: true,
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})
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require.NoError(t, err)
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require.Equal(t, []string{"set_dc"}, out.Datacenters)
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require.NotNil(t, out.Region)
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require.Equal(t, "set_region", *out.Region)
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})
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t.Run("set via var-files", func(t *testing.T) {
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varFile, err := ioutil.TempFile("", "")
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require.NoError(t, err)
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defer os.Remove(varFile.Name())
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content := `dc_var = "set_dc"
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region_var = "set_region"`
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_, err = varFile.WriteString(content)
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require.NoError(t, err)
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out, err := ParseWithConfig(&ParseConfig{
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Path: "input.hcl",
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Body: []byte(hcl),
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VarFiles: []string{varFile.Name()},
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AllowFS: true,
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})
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require.NoError(t, err)
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require.Equal(t, []string{"set_dc"}, out.Datacenters)
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require.NotNil(t, out.Region)
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require.Equal(t, "set_region", *out.Region)
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})
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}
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// TestParse_UnknownVariables asserts that unknown variables are left intact for further processing
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func TestParse_UnknownVariables(t *testing.T) {
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hcl := `
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variables {
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region_var = "default"
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}
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job "example" {
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datacenters = [for s in ["dc1", "dc2"] : upper(s)]
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region = var.region_var
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meta {
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known_var = "${var.region_var}"
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unknown_var = "${UNKNOWN}"
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}
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}
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`
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out, err := ParseWithConfig(&ParseConfig{
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Path: "input.hcl",
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Body: []byte(hcl),
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ArgVars: []string{"region_var=aug"},
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AllowFS: true,
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})
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require.NoError(t, err)
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meta := map[string]string{
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"known_var": "aug",
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"unknown_var": "${UNKNOWN}",
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}
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require.Equal(t, meta, out.Meta)
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}
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// TestParse_UnsetVariables asserts that variables that have neither types nor
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// values return early instead of panicking.
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func TestParse_UnsetVariables(t *testing.T) {
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hcl := `
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variable "region_var" {}
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job "example" {
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datacenters = [for s in ["dc1", "dc2"] : upper(s)]
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region = var.region_var
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}
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`
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_, err := ParseWithConfig(&ParseConfig{
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Path: "input.hcl",
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Body: []byte(hcl),
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ArgVars: []string{},
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AllowFS: true,
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})
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require.Error(t, err)
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require.Contains(t, err.Error(), "Unset variable")
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}
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func TestParse_Locals(t *testing.T) {
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hcl := `
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variables {
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region_var = "default_region"
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}
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locals {
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# literal local
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dc = "local_dc"
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# local that depends on a variable
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region = "${var.region_var}.example"
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}
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job "example" {
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datacenters = [local.dc]
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region = local.region
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}
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`
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t.Run("defaults", func(t *testing.T) {
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out, err := ParseWithConfig(&ParseConfig{
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Path: "input.hcl",
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Body: []byte(hcl),
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AllowFS: true,
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})
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require.NoError(t, err)
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require.Equal(t, []string{"local_dc"}, out.Datacenters)
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require.NotNil(t, out.Region)
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require.Equal(t, "default_region.example", *out.Region)
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})
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t.Run("set via -var argments", func(t *testing.T) {
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out, err := ParseWithConfig(&ParseConfig{
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Path: "input.hcl",
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Body: []byte(hcl),
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ArgVars: []string{"region_var=set_region"},
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AllowFS: true,
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})
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require.NoError(t, err)
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require.Equal(t, []string{"local_dc"}, out.Datacenters)
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require.NotNil(t, out.Region)
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require.Equal(t, "set_region.example", *out.Region)
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})
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}
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func TestParse_FileOperators(t *testing.T) {
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hcl := `
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job "example" {
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region = file("parse_test.go")
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}
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`
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t.Run("enabled", func(t *testing.T) {
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out, err := ParseWithConfig(&ParseConfig{
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Path: "input.hcl",
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Body: []byte(hcl),
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ArgVars: nil,
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AllowFS: true,
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})
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require.NoError(t, err)
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expected, err := ioutil.ReadFile("parse_test.go")
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require.NoError(t, err)
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require.NotNil(t, out.Region)
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require.Equal(t, string(expected), *out.Region)
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})
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t.Run("disabled", func(t *testing.T) {
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_, err := ParseWithConfig(&ParseConfig{
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Path: "input.hcl",
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Body: []byte(hcl),
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ArgVars: nil,
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AllowFS: false,
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})
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require.Error(t, err)
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require.Contains(t, err.Error(), "filesystem function disabled")
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})
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}
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func TestParseDynamic(t *testing.T) {
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hcl := `
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job "example" {
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dynamic "group" {
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for_each = [
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{ name = "groupA", idx = 1 },
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{ name = "groupB", idx = 2 },
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{ name = "groupC", idx = 3 },
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]
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labels = [group.value.name]
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content {
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count = group.value.idx
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service {
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port = group.value.name
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}
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task "simple" {
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driver = "raw_exec"
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config {
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command = group.value.name
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}
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meta {
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VERSION = group.value.idx
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}
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env {
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ID = format("id:%s", group.value.idx)
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}
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resources {
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cpu = group.value.idx
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}
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}
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}
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}
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}
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`
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out, err := ParseWithConfig(&ParseConfig{
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Path: "input.hcl",
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Body: []byte(hcl),
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ArgVars: nil,
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AllowFS: false,
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})
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require.NoError(t, err)
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require.Len(t, out.TaskGroups, 3)
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require.Equal(t, "groupA", *out.TaskGroups[0].Name)
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require.Equal(t, "groupB", *out.TaskGroups[1].Name)
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require.Equal(t, "groupC", *out.TaskGroups[2].Name)
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require.Equal(t, 1, *out.TaskGroups[0].Tasks[0].Resources.CPU)
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require.Equal(t, "groupA", out.TaskGroups[0].Services[0].PortLabel)
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// interpolation inside maps
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require.Equal(t, "groupA", out.TaskGroups[0].Tasks[0].Config["command"])
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require.Equal(t, "1", out.TaskGroups[0].Tasks[0].Meta["VERSION"])
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require.Equal(t, "id:1", out.TaskGroups[0].Tasks[0].Env["ID"])
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require.Equal(t, "id:2", out.TaskGroups[1].Tasks[0].Env["ID"])
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require.Equal(t, "3", out.TaskGroups[2].Tasks[0].Meta["VERSION"])
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}
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func TestParse_InvalidScalingSyntax(t *testing.T) {
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cases := []struct {
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name string
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expectedErr string
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hcl string
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}{
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{
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"valid",
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"",
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`
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job "example" {
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group "g1" {
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scaling {
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max = 40
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type = "horizontal"
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}
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task "t1" {
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scaling "cpu" {
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max = 20
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}
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scaling "mem" {
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max = 15
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}
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}
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}
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}
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`,
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},
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{
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"group missing max",
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`argument "max" is required`,
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`
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job "example" {
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group "g1" {
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scaling {
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#max = 40
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type = "horizontal"
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}
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task "t1" {
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scaling "cpu" {
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max = 20
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}
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scaling "mem" {
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max = 15
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}
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}
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}
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}
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`,
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},
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{
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"group invalid type",
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`task group scaling policy had invalid type`,
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`
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job "example" {
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group "g1" {
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scaling {
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max = 40
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type = "invalid_type"
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}
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task "t1" {
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scaling "cpu" {
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max = 20
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}
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scaling "mem" {
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max = 15
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}
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}
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}
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}
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`,
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},
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{
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"task invalid label",
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`scaling policy name must be "cpu" or "mem"`,
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`
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job "example" {
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group "g1" {
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scaling {
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max = 40
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type = "horizontal"
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}
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task "t1" {
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scaling "not_cpu" {
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max = 20
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}
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scaling "mem" {
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max = 15
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}
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}
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}
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}
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`,
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},
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{
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"task duplicate blocks",
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`Duplicate scaling "cpu" block`,
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`
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job "example" {
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group "g1" {
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scaling {
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max = 40
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type = "horizontal"
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}
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task "t1" {
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scaling "cpu" {
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max = 20
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}
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scaling "cpu" {
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max = 15
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}
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}
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}
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}
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`,
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},
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{
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"task invalid type",
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`Invalid scaling policy type`,
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`
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job "example" {
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group "g1" {
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scaling {
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max = 40
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type = "horizontal"
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}
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task "t1" {
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scaling "cpu" {
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max = 20
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type = "invalid"
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}
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scaling "mem" {
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max = 15
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}
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}
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}
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}
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`,
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},
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}
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for _, c := range cases {
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t.Run(c.name, func(t *testing.T) {
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_, err := ParseWithConfig(&ParseConfig{
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Path: c.name + ".hcl",
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Body: []byte(c.hcl),
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AllowFS: false,
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})
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if c.expectedErr == "" {
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require.NoError(t, err)
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} else {
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require.Error(t, err)
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require.Contains(t, err.Error(), c.expectedErr)
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}
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})
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}
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}
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func TestParseJob_JobWithFunctionsAndLookups(t *testing.T) {
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hcl := `
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variable "env" {
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description = "target environment for the job"
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}
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locals {
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environments = {
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prod = { count = 20, dcs = ["prod-dc1", "prod-dc2"] },
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staging = { count = 3, dcs = ["dc1"] },
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}
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env = lookup(local.environments, var.env, { count = 0, dcs = [] })
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}
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job "job-webserver" {
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datacenters = local.env.dcs
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group "group-webserver" {
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count = local.env.count
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task "server" {
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driver = "docker"
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config {
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image = "hashicorp/http-echo"
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args = ["-text", "Hello from ${var.env}"]
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}
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}
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}
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}
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`
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cases := []struct {
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env string
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expectedJob *api.Job
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}{
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{
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"prod",
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&api.Job{
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ID: stringToPtr("job-webserver"),
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Name: stringToPtr("job-webserver"),
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Datacenters: []string{"prod-dc1", "prod-dc2"},
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TaskGroups: []*api.TaskGroup{
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{
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Name: stringToPtr("group-webserver"),
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Count: intToPtr(20),
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Tasks: []*api.Task{
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{
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Name: "server",
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Driver: "docker",
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Config: map[string]interface{}{
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"image": "hashicorp/http-echo",
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"args": []interface{}{"-text", "Hello from prod"},
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},
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},
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},
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},
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},
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},
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},
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{
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"staging",
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&api.Job{
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ID: stringToPtr("job-webserver"),
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Name: stringToPtr("job-webserver"),
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Datacenters: []string{"dc1"},
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TaskGroups: []*api.TaskGroup{
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{
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Name: stringToPtr("group-webserver"),
|
|
Count: intToPtr(3),
|
|
|
|
Tasks: []*api.Task{
|
|
{
|
|
Name: "server",
|
|
Driver: "docker",
|
|
|
|
Config: map[string]interface{}{
|
|
"image": "hashicorp/http-echo",
|
|
"args": []interface{}{"-text", "Hello from staging"},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
"unknown",
|
|
&api.Job{
|
|
ID: stringToPtr("job-webserver"),
|
|
Name: stringToPtr("job-webserver"),
|
|
Datacenters: []string{},
|
|
TaskGroups: []*api.TaskGroup{
|
|
{
|
|
Name: stringToPtr("group-webserver"),
|
|
Count: intToPtr(0),
|
|
|
|
Tasks: []*api.Task{
|
|
{
|
|
Name: "server",
|
|
Driver: "docker",
|
|
|
|
Config: map[string]interface{}{
|
|
"image": "hashicorp/http-echo",
|
|
"args": []interface{}{"-text", "Hello from unknown"},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
}
|
|
|
|
for _, c := range cases {
|
|
t.Run(c.env, func(t *testing.T) {
|
|
found, err := ParseWithConfig(&ParseConfig{
|
|
Path: "example.hcl",
|
|
Body: []byte(hcl),
|
|
AllowFS: false,
|
|
ArgVars: []string{"env=" + c.env},
|
|
})
|
|
require.NoError(t, err)
|
|
require.Equal(t, c.expectedJob, found)
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestParse_TaskEnvs(t *testing.T) {
|
|
cases := []struct {
|
|
name string
|
|
envSnippet string
|
|
expected map[string]string
|
|
}{
|
|
{
|
|
"none",
|
|
``,
|
|
nil,
|
|
},
|
|
{
|
|
"block",
|
|
`
|
|
env {
|
|
key = "value"
|
|
} `,
|
|
map[string]string{"key": "value"},
|
|
},
|
|
{
|
|
"attribute",
|
|
`
|
|
env = {
|
|
"key.dot" = "val1"
|
|
key_unquoted_without_dot = "val2"
|
|
} `,
|
|
map[string]string{"key.dot": "val1", "key_unquoted_without_dot": "val2"},
|
|
},
|
|
{
|
|
"attribute_colons",
|
|
`env = {
|
|
"key.dot" : "val1"
|
|
key_unquoted_without_dot : "val2"
|
|
} `,
|
|
map[string]string{"key.dot": "val1", "key_unquoted_without_dot": "val2"},
|
|
},
|
|
{
|
|
"attribute_empty",
|
|
`env = {}`,
|
|
map[string]string{},
|
|
},
|
|
{
|
|
"attribute_expression",
|
|
`env = {for k in ["a", "b"]: k => "val-${k}" }`,
|
|
map[string]string{"a": "val-a", "b": "val-b"},
|
|
},
|
|
}
|
|
|
|
for _, c := range cases {
|
|
t.Run(c.name, func(t *testing.T) {
|
|
hcl := `
|
|
job "example" {
|
|
group "group" {
|
|
task "task" {
|
|
driver = "docker"
|
|
config {}
|
|
|
|
` + c.envSnippet + `
|
|
}
|
|
}
|
|
}`
|
|
|
|
out, err := ParseWithConfig(&ParseConfig{
|
|
Path: "input.hcl",
|
|
Body: []byte(hcl),
|
|
})
|
|
require.NoError(t, err)
|
|
|
|
require.Equal(t, c.expected, out.TaskGroups[0].Tasks[0].Env)
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestParse_TaskEnvs_Multiple(t *testing.T) {
|
|
hcl := `
|
|
job "example" {
|
|
group "group" {
|
|
task "task" {
|
|
driver = "docker"
|
|
config {}
|
|
|
|
env = {"a": "b"}
|
|
env {
|
|
c = "d"
|
|
}
|
|
}
|
|
}
|
|
}`
|
|
|
|
_, err := ParseWithConfig(&ParseConfig{
|
|
Path: "input.hcl",
|
|
Body: []byte(hcl),
|
|
})
|
|
require.Error(t, err)
|
|
require.Contains(t, err.Error(), "Duplicate env block")
|
|
}
|
|
|
|
func Test_TaskEnvs_Invalid(t *testing.T) {
|
|
cases := []struct {
|
|
name string
|
|
envSnippet string
|
|
expectedErr string
|
|
}{
|
|
{
|
|
"attr: invalid expression",
|
|
`env = { key = local.undefined_local }`,
|
|
`does not have an attribute named "undefined_local"`,
|
|
},
|
|
{
|
|
"block: invalid block expression",
|
|
`env {
|
|
for k in ["a", "b"]: k => k
|
|
}`,
|
|
"Invalid block definition",
|
|
},
|
|
{
|
|
"attr: not make sense",
|
|
`env = [ "a" ]`,
|
|
"Unsuitable value: map of string required",
|
|
},
|
|
}
|
|
|
|
for _, c := range cases {
|
|
t.Run(c.name, func(t *testing.T) {
|
|
hcl := `
|
|
job "example" {
|
|
group "group" {
|
|
task "task" {
|
|
driver = "docker"
|
|
config {}
|
|
|
|
` + c.envSnippet + `
|
|
}
|
|
}
|
|
}`
|
|
_, err := ParseWithConfig(&ParseConfig{
|
|
Path: "input.hcl",
|
|
Body: []byte(hcl),
|
|
})
|
|
require.Error(t, err)
|
|
require.Contains(t, err.Error(), c.expectedErr)
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestParse_Meta_Alternatives(t *testing.T) {
|
|
hcl := ` job "example" {
|
|
group "group" {
|
|
task "task" {
|
|
driver = "config"
|
|
config {}
|
|
|
|
meta {
|
|
source = "task"
|
|
}
|
|
}
|
|
|
|
meta {
|
|
source = "group"
|
|
|
|
}
|
|
}
|
|
|
|
meta {
|
|
source = "job"
|
|
}
|
|
}
|
|
`
|
|
|
|
asBlock, err := ParseWithConfig(&ParseConfig{
|
|
Path: "input.hcl",
|
|
Body: []byte(hcl),
|
|
})
|
|
require.NoError(t, err)
|
|
|
|
hclAsAttr := strings.ReplaceAll(hcl, "meta {", "meta = {")
|
|
require.Equal(t, 3, strings.Count(hclAsAttr, "meta = {"))
|
|
|
|
asAttr, err := ParseWithConfig(&ParseConfig{
|
|
Path: "input.hcl",
|
|
Body: []byte(hclAsAttr),
|
|
})
|
|
require.NoError(t, err)
|
|
|
|
require.Equal(t, asBlock, asAttr)
|
|
require.Equal(t, map[string]string{"source": "job"}, asBlock.Meta)
|
|
require.Equal(t, map[string]string{"source": "group"}, asBlock.TaskGroups[0].Meta)
|
|
require.Equal(t, map[string]string{"source": "task"}, asBlock.TaskGroups[0].Tasks[0].Meta)
|
|
|
|
}
|