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Feature arm templates to azapi (#105)
* support paste arm template as azapi config * go mod vendor * fix golint
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178 changes: 178 additions & 0 deletions
178
internal/langserver/handlers/command/arm_template_converter.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,178 @@ | ||
| package command | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
| "fmt" | ||
| "strings" | ||
|
|
||
| "github.com/Azure/azure-sdk-for-go/sdk/azcore/arm" | ||
| "github.com/hashicorp/hcl/v2" | ||
| "github.com/hashicorp/hcl/v2/hclwrite" | ||
| "github.com/zclconf/go-cty/cty" | ||
| ) | ||
|
|
||
| type Context struct { | ||
| File *hclwrite.File | ||
| typeLabelMap map[string]bool | ||
| idRefMap map[string]string | ||
| } | ||
|
|
||
| func NewContext() *Context { | ||
| file, _ := hclwrite.ParseConfig([]byte(hclTemplate), "main.tf", hcl.InitialPos) | ||
| return &Context{ | ||
| File: file, | ||
| typeLabelMap: make(map[string]bool), | ||
| idRefMap: make(map[string]string), | ||
| } | ||
| } | ||
|
|
||
| func (c *Context) AppendBlock(block *hclwrite.Block) { | ||
| if block.Type() == "resource" { | ||
| typeValue := string(block.Body().GetAttribute("type").Expr().BuildTokens(nil).Bytes()) | ||
| typeValue = strings.Trim(typeValue, " \"") | ||
| tfLabel := block.Labels()[1] | ||
| if typeLabel := fmt.Sprintf("%s-%s", typeValue, tfLabel); c.typeLabelMap[typeLabel] { | ||
| for i := 1; ; i++ { | ||
| tfLabel = fmt.Sprintf("%s%d", block.Labels()[1], i) | ||
| newTypeLabel := fmt.Sprintf("%s-%s", typeValue, tfLabel) | ||
| if !c.typeLabelMap[newTypeLabel] { | ||
| newLabels := []string{block.Labels()[0], tfLabel} | ||
| block.SetLabels(newLabels) | ||
| c.typeLabelMap[newTypeLabel] = true | ||
| break | ||
| } | ||
| } | ||
| } else { | ||
| c.typeLabelMap[typeLabel] = true | ||
| } | ||
| nameValue := string(block.Body().GetAttribute("name").Expr().BuildTokens(nil).Bytes()) | ||
| nameValue = strings.Trim(nameValue, " \"") | ||
| parentIdValue := string(block.Body().GetAttribute("parent_id").Expr().BuildTokens(nil).Bytes()) | ||
| parentIdValue = strings.Trim(parentIdValue, " \"") | ||
| c.idRefMap[buildResourceId(nameValue, parentIdValue, typeValue)] = fmt.Sprintf("azapi_resource.%s.id", tfLabel) | ||
| } | ||
|
|
||
| c.File.Body().AppendBlock(block) | ||
| c.File.Body().AppendNewline() | ||
| } | ||
|
|
||
| func (c *Context) String() string { | ||
| result := string(c.File.Bytes()) | ||
|
|
||
| for id, ref := range c.idRefMap { | ||
| result = strings.ReplaceAll(result, fmt.Sprintf(`"%s"`, id), ref) | ||
| } | ||
|
|
||
| result = string(hclwrite.Format([]byte(result))) | ||
| // TODO: improve it | ||
| result = strings.ReplaceAll(result, "$${", "${") | ||
| return result | ||
| } | ||
|
|
||
| func convertARMTemplate(input string) (string, error) { | ||
| var model ARMTemplateModel | ||
| err := json.Unmarshal([]byte(input), &model) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
|
|
||
| c := NewContext() | ||
|
|
||
| for key, parameter := range model.Parameters { | ||
| varBlock := hclwrite.NewBlock("variable", []string{key}) | ||
| switch strings.ToLower(parameter.Type) { | ||
| case "string": | ||
| varBlock.Body().SetAttributeTraversal("type", hcl.Traversal{hcl.TraverseRoot{Name: "string"}}) | ||
| case "securestring": | ||
| varBlock.Body().SetAttributeTraversal("type", hcl.Traversal{hcl.TraverseRoot{Name: "string"}}) | ||
| varBlock.Body().SetAttributeValue("sensitive", cty.True) | ||
| default: | ||
| // Todo: support other types | ||
| varBlock.Body().SetAttributeTraversal("type", hcl.Traversal{hcl.TraverseRoot{Name: strings.ToLower(parameter.Type)}}) | ||
| } | ||
| varBlock.Body().SetAttributeValue("default", cty.StringVal(parameter.DefaultValue)) | ||
| c.AppendBlock(varBlock) | ||
| } | ||
|
|
||
| for _, resource := range model.Resources { | ||
| res := flattenARMExpression(resource) | ||
| data, err := json.MarshalIndent(res, "", " ") | ||
| if err != nil { | ||
| return "", fmt.Errorf("unable to marshal JSON content: %v", err) | ||
| } | ||
| resourceJson := string(data) | ||
| resourceBlock, err := ParseResourceJson(resourceJson) | ||
| if err != nil { | ||
| return "", fmt.Errorf("unable to parse resource JSON content: %v", err) | ||
| } | ||
| if resourceBlock == nil { | ||
| return "", fmt.Errorf("resource block is nil") | ||
| } | ||
| c.AppendBlock(resourceBlock) | ||
| } | ||
|
|
||
| return c.String(), nil | ||
| } | ||
|
|
||
| const hclTemplate = ` | ||
| variable "subscriptionId" { | ||
| type = string | ||
| description = "The subscription id" | ||
| } | ||
| variable "resourceGroupName" { | ||
| type = string | ||
| description = "The resource group name" | ||
| } | ||
| ` | ||
|
|
||
| type ARMTemplateParameterModel struct { | ||
| DefaultValue string `json:"defaultValue"` | ||
| Type string `json:"type"` | ||
| } | ||
|
|
||
| type ARMTemplateModel struct { | ||
| Schema string `json:"$schema"` | ||
| ContentVersion string `json:"contentVersion"` | ||
| Parameters map[string]ARMTemplateParameterModel `json:"parameters"` | ||
| Variables interface{} `json:"variables"` | ||
| Resources []map[string]interface{} `json:"resources"` | ||
| } | ||
|
|
||
| func buildResourceId(name, parentId, resourceType string) string { | ||
| azureResourceType := resourceType[:strings.Index(resourceType, "@")] | ||
| azureResourceId := "" | ||
| switch { | ||
| case strings.Count(azureResourceType, "/") == 1: | ||
| // build azure resource id | ||
| switch azureResourceType { | ||
| case arm.ResourceGroupResourceType.String(): | ||
| azureResourceId = fmt.Sprintf("%s/resourceGroups/%s", parentId, name) | ||
| case arm.SubscriptionResourceType.String(): | ||
| azureResourceId = fmt.Sprintf("/subscriptions/%s", name) | ||
| case arm.TenantResourceType.String(): | ||
| azureResourceId = "/" | ||
| case arm.ProviderResourceType.String(): | ||
| // avoid duplicated `/` if parent_id is tenant scope | ||
| scopeId := parentId | ||
| if parentId == "/" { | ||
| scopeId = "" | ||
| } | ||
| azureResourceId = fmt.Sprintf("%s/providers/%s", scopeId, name) | ||
| default: | ||
| // avoid duplicated `/` if parent_id is tenant scope | ||
| scopeId := parentId | ||
| if parentId == "/" { | ||
| scopeId = "" | ||
| } | ||
| azureResourceId = fmt.Sprintf("%s/providers/%s/%s", scopeId, azureResourceType, name) | ||
| } | ||
| default: | ||
| // build azure resource id | ||
| lastType := azureResourceType[strings.LastIndex(azureResourceType, "/")+1:] | ||
| azureResourceId = fmt.Sprintf("%s/%s/%s", parentId, lastType, name) | ||
| } | ||
|
|
||
| return azureResourceId | ||
| } |
109 changes: 109 additions & 0 deletions
109
internal/langserver/handlers/command/arm_template_converter_test.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,109 @@ | ||
| package command | ||
|
|
||
| import ( | ||
| "testing" | ||
|
|
||
| "github.com/hashicorp/hcl/v2/hclwrite" | ||
| "github.com/zclconf/go-cty/cty" | ||
| ) | ||
|
|
||
| func Test_Context(t *testing.T) { | ||
| res1 := hclwrite.NewBlock("resource", []string{"azapi_resource", "managedCluster"}) | ||
| res1.Body().SetAttributeValue("type", cty.StringVal("Microsoft.ContainerService/managedClusters@2021-03-01")) | ||
| res1.Body().SetAttributeValue("name", cty.StringVal("myCluster")) | ||
| res1.Body().SetAttributeValue("parent_id", cty.StringVal("myParentId")) | ||
|
|
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| res2 := hclwrite.NewBlock("resource", []string{"azapi_resource", "managedCluster"}) | ||
| res2.Body().SetAttributeValue("type", cty.StringVal("Microsoft.ContainerService/managedClusters@2021-03-01")) | ||
| res2.Body().SetAttributeValue("name", cty.StringVal("myCluster")) | ||
| res2.Body().SetAttributeValue("parent_id", cty.StringVal("myParentId")) | ||
|
|
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| var1 := hclwrite.NewBlock("variable", []string{"foo"}) | ||
|
|
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| tests := []struct { | ||
| name string | ||
| input []*hclwrite.Block | ||
| expect string | ||
| }{ | ||
| { | ||
| name: "empty", | ||
| input: []*hclwrite.Block{}, | ||
| expect: ` | ||
| variable "subscriptionId" { | ||
| type = string | ||
| description = "The subscription id" | ||
| } | ||
| variable "resourceGroupName" { | ||
| type = string | ||
| description = "The resource group name" | ||
| } | ||
| `, | ||
| }, | ||
| { | ||
| name: "with variables", | ||
| input: []*hclwrite.Block{ | ||
| var1, | ||
| }, | ||
| expect: ` | ||
| variable "subscriptionId" { | ||
| type = string | ||
| description = "The subscription id" | ||
| } | ||
| variable "resourceGroupName" { | ||
| type = string | ||
| description = "The resource group name" | ||
| } | ||
| variable "foo" { | ||
| } | ||
| `, | ||
| }, | ||
| { | ||
| name: "with resources", | ||
| input: []*hclwrite.Block{ | ||
| res1, | ||
| res2, | ||
| }, | ||
| expect: ` | ||
| variable "subscriptionId" { | ||
| type = string | ||
| description = "The subscription id" | ||
| } | ||
| variable "resourceGroupName" { | ||
| type = string | ||
| description = "The resource group name" | ||
| } | ||
| resource "azapi_resource" "managedCluster" { | ||
| type = "Microsoft.ContainerService/managedClusters@2021-03-01" | ||
| name = "myCluster" | ||
| parent_id = "myParentId" | ||
| } | ||
| resource "azapi_resource" "managedCluster1" { | ||
| type = "Microsoft.ContainerService/managedClusters@2021-03-01" | ||
| name = "myCluster" | ||
| parent_id = "myParentId" | ||
| } | ||
| `, | ||
| }, | ||
| } | ||
|
|
||
| for _, tt := range tests { | ||
| t.Run(tt.name, func(t *testing.T) { | ||
| ctx := NewContext() | ||
| for _, b := range tt.input { | ||
| ctx.AppendBlock(b) | ||
| } | ||
| if got := ctx.String(); got != tt.expect { | ||
| t.Errorf("unexpected result, got: %s, expect: %s", got, tt.expect) | ||
| } | ||
| }) | ||
| } | ||
| } |
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