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block_fastly_service_v1_vcl.go
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block_fastly_service_v1_vcl.go
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package fastly
import (
"context"
"errors"
"fmt"
"log"
gofastly "github.com/fastly/go-fastly/v6/fastly"
"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
)
type VCLServiceAttributeHandler struct {
*DefaultServiceAttributeHandler
}
func NewServiceVCL(sa ServiceMetadata) ServiceAttributeDefinition {
return ToServiceAttributeDefinition(&VCLServiceAttributeHandler{
&DefaultServiceAttributeHandler{
key: "vcl",
serviceMetadata: sa,
},
})
}
func (h *VCLServiceAttributeHandler) Key() string { return h.key }
func (h *VCLServiceAttributeHandler) GetSchema() *schema.Schema {
return &schema.Schema{
Type: schema.TypeSet,
Optional: true,
Elem: &schema.Resource{
Schema: map[string]*schema.Schema{
"name": {
Type: schema.TypeString,
Required: true,
Description: "A unique name for this configuration block. It is important to note that changing this attribute will delete and recreate the resource",
},
"content": {
Type: schema.TypeString,
Required: true,
Description: "The custom VCL code to upload",
},
"main": {
Type: schema.TypeBool,
Optional: true,
Default: false,
Description: "If `true`, use this block as the main configuration. If `false`, use this block as an includable library. Only a single VCL block can be marked as the main block. Default is `false`",
},
},
},
}
}
func (h *VCLServiceAttributeHandler) Create(_ context.Context, d *schema.ResourceData, resource map[string]interface {
}, serviceVersion int, conn *gofastly.Client) error {
opts := gofastly.CreateVCLInput{
ServiceID: d.Id(),
ServiceVersion: serviceVersion,
Name: resource["name"].(string),
Content: resource["content"].(string),
Main: resource["main"].(bool),
}
log.Printf("[DEBUG] Fastly VCL Addition opts: %#v", opts)
_, err := conn.CreateVCL(&opts)
if err != nil {
return err
}
return nil
}
func (h *VCLServiceAttributeHandler) Read(_ context.Context, d *schema.ResourceData, _ map[string]interface{}, serviceVersion int, conn *gofastly.Client) error {
log.Printf("[DEBUG] Refreshing VCLs for (%s)", d.Id())
vclList, err := conn.ListVCLs(&gofastly.ListVCLsInput{
ServiceID: d.Id(),
ServiceVersion: serviceVersion,
})
if err != nil {
return fmt.Errorf("[ERR] Error looking up VCLs for (%s), version (%v): %s", d.Id(), serviceVersion, err)
}
vl := flattenVCLs(vclList)
if err := d.Set(h.GetKey(), vl); err != nil {
log.Printf("[WARN] Error setting VCLs for (%s): %s", d.Id(), err)
}
return nil
}
func (h *VCLServiceAttributeHandler) Update(_ context.Context, d *schema.ResourceData, resource, modified map[string]interface {
}, serviceVersion int, conn *gofastly.Client) error {
opts := gofastly.UpdateVCLInput{
ServiceID: d.Id(),
ServiceVersion: serviceVersion,
Name: resource["name"].(string),
}
if v, ok := modified["content"]; ok {
opts.Content = gofastly.String(v.(string))
}
log.Printf("[DEBUG] Update VCL Opts: %#v", opts)
_, err := conn.UpdateVCL(&opts)
if err != nil {
return err
}
return nil
}
func (h *VCLServiceAttributeHandler) Delete(_ context.Context, d *schema.ResourceData, resource map[string]interface {
}, serviceVersion int, conn *gofastly.Client) error {
opts := gofastly.DeleteVCLInput{
ServiceID: d.Id(),
ServiceVersion: serviceVersion,
Name: resource["name"].(string),
}
log.Printf("[DEBUG] Fastly VCL Removal opts: %#v", opts)
err := conn.DeleteVCL(&opts)
if errRes, ok := err.(*gofastly.HTTPError); ok {
if errRes.StatusCode != 404 {
return err
}
} else if err != nil {
return err
}
return nil
}
func flattenVCLs(vclList []*gofastly.VCL) []map[string]interface{} {
var vl []map[string]interface{}
for _, vcl := range vclList {
// Convert VCLs to a map for saving to state.
vclMap := map[string]interface{}{
"name": vcl.Name,
"content": vcl.Content,
"main": vcl.Main,
}
// prune any empty values that come from the default string value in structs
for k, v := range vclMap {
if v == "" {
delete(vclMap, k)
}
}
vl = append(vl, vclMap)
}
return vl
}
func validateVCLs(d *schema.ResourceData) error {
// TODO: this would be nice to move into a resource/collection validation function, once that is available
// (see https://github.com/hashicorp/terraform/pull/4348 and https://github.com/hashicorp/terraform/pull/6508)
vcls, exists := d.GetOk("vcl")
if !exists {
return nil
}
numberOfMainVCLs, numberOfIncludeVCLs := 0, 0
for _, vclElem := range vcls.(*schema.Set).List() {
vcl := vclElem.(map[string]interface{})
if mainVal, hasMain := vcl["main"]; hasMain && mainVal.(bool) {
numberOfMainVCLs++
} else {
numberOfIncludeVCLs++
}
}
if numberOfMainVCLs == 0 && numberOfIncludeVCLs > 0 {
return errors.New("if you include VCL configurations, one of them should have main = true")
}
if numberOfMainVCLs > 1 {
return errors.New("you cannot have more than one VCL configuration with main = true")
}
return nil
}