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block_fastly_service_v1_logging_scalyr.go
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block_fastly_service_v1_logging_scalyr.go
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package fastly
import (
"fmt"
"log"
gofastly "github.com/fastly/go-fastly/v3/fastly"
"github.com/hashicorp/terraform-plugin-sdk/helper/schema"
)
type ScalyrServiceAttributeHandler struct {
*DefaultServiceAttributeHandler
}
func NewServiceLoggingScalyr(sa ServiceMetadata) ServiceAttributeDefinition {
return &ScalyrServiceAttributeHandler{
&DefaultServiceAttributeHandler{
key: "logging_scalyr",
serviceMetadata: sa,
},
}
}
func (h *ScalyrServiceAttributeHandler) Register(s *schema.Resource) error {
var blockAttributes = map[string]*schema.Schema{
// Required fields
"name": {
Type: schema.TypeString,
Required: true,
Description: "The unique name of the Scalyr logging endpoint",
},
"token": {
Type: schema.TypeString,
Required: true,
Description: "The token to use for authentication (https://www.scalyr.com/keys)",
Sensitive: true,
},
// Optional
"region": {
Type: schema.TypeString,
Optional: true,
Default: "US",
Description: "The region that log data will be sent to. One of `US` or `EU`. Defaults to `US` if undefined",
},
}
if h.GetServiceMetadata().serviceType == ServiceTypeVCL {
blockAttributes["format"] = &schema.Schema{
Type: schema.TypeString,
Optional: true,
Description: "Apache style log formatting.",
}
blockAttributes["format_version"] = &schema.Schema{
Type: schema.TypeInt,
Optional: true,
Default: 2,
Description: "The version of the custom logging format used for the configured endpoint. Can be either 1 or 2. (default: 2).",
ValidateFunc: validateLoggingFormatVersion(),
}
blockAttributes["placement"] = &schema.Schema{
Type: schema.TypeString,
Optional: true,
Description: "Where in the generated VCL the logging call should be placed.",
ValidateFunc: validateLoggingPlacement(),
}
blockAttributes["response_condition"] = &schema.Schema{
Type: schema.TypeString,
Optional: true,
Description: "The name of an existing condition in the configured endpoint, or leave blank to always execute.",
}
}
s.Schema[h.GetKey()] = &schema.Schema{
Type: schema.TypeSet,
Optional: true,
Elem: &schema.Resource{
Schema: blockAttributes,
},
}
return nil
}
func (h *ScalyrServiceAttributeHandler) Process(d *schema.ResourceData, latestVersion int, conn *gofastly.Client) error {
serviceID := d.Id()
oldLogCfg, newLogCfg := d.GetChange(h.GetKey())
if oldLogCfg == nil {
oldLogCfg = new(schema.Set)
}
if newLogCfg == nil {
newLogCfg = new(schema.Set)
}
oldLogSet := oldLogCfg.(*schema.Set)
newLogSet := newLogCfg.(*schema.Set)
removeScalyrLogging := oldLogSet.Difference(newLogSet).List()
addScalyrLogging := newLogSet.Difference(oldLogSet).List()
// DELETE old Scalyr logging endpoints.
for _, oRaw := range removeScalyrLogging {
of := oRaw.(map[string]interface{})
opts := h.buildDelete(of, serviceID, latestVersion)
log.Printf("[DEBUG] Fastly Scalyr logging endpoint removal opts: %#v", opts)
if err := deleteScalyr(conn, opts); err != nil {
return err
}
}
// POST new/updated Scalyr logging endponts.
for _, nRaw := range addScalyrLogging {
cfg := nRaw.(map[string]interface{})
opts := h.buildCreate(cfg, serviceID, latestVersion)
log.Printf("[DEBUG] Fastly Scalyr logging addition opts: %#v", opts)
if err := createScalyr(conn, opts); err != nil {
return err
}
}
return nil
}
func (h *ScalyrServiceAttributeHandler) Read(d *schema.ResourceData, s *gofastly.ServiceDetail, conn *gofastly.Client) error {
// Refresh Scalyr.
log.Printf("[DEBUG] Refreshing Scalyr logging endpoints for (%s)", d.Id())
scalyrList, err := conn.ListScalyrs(&gofastly.ListScalyrsInput{
ServiceID: d.Id(),
ServiceVersion: s.ActiveVersion.Number,
})
if err != nil {
return fmt.Errorf("[ERR] Error looking up Scalyr logging endpoints for (%s), version (%v): %s", d.Id(), s.ActiveVersion.Number, err)
}
scalyrLogList := flattenScalyr(scalyrList)
if err := d.Set(h.GetKey(), scalyrLogList); err != nil {
log.Printf("[WARN] Error setting Scalyr logging endpoints for (%s): %s", d.Id(), err)
}
return nil
}
func createScalyr(conn *gofastly.Client, i *gofastly.CreateScalyrInput) error {
_, err := conn.CreateScalyr(i)
return err
}
func deleteScalyr(conn *gofastly.Client, i *gofastly.DeleteScalyrInput) error {
err := conn.DeleteScalyr(i)
errRes, ok := err.(*gofastly.HTTPError)
if !ok {
return err
}
// 404 response codes don't result in an error propagating because a 404 could
// indicate that a resource was deleted elsewhere.
if !errRes.IsNotFound() {
return err
}
return nil
}
func flattenScalyr(scalyrList []*gofastly.Scalyr) []map[string]interface{} {
var flattened []map[string]interface{}
for _, s := range scalyrList {
// Convert logging to a map for saving to state.
flatScalyr := map[string]interface{}{
"name": s.Name,
"region": s.Region,
"token": s.Token,
"response_condition": s.ResponseCondition,
"format": s.Format,
"placement": s.Placement,
"format_version": s.FormatVersion,
}
// Prune any empty values that come from the default string value in structs.
for k, v := range flatScalyr {
if v == "" {
delete(flatScalyr, k)
}
}
flattened = append(flattened, flatScalyr)
}
return flattened
}
func (h *ScalyrServiceAttributeHandler) buildCreate(scalyrMap interface{}, serviceID string, serviceVersion int) *gofastly.CreateScalyrInput {
df := scalyrMap.(map[string]interface{})
var vla = h.getVCLLoggingAttributes(df)
return &gofastly.CreateScalyrInput{
ServiceID: serviceID,
ServiceVersion: serviceVersion,
Name: df["name"].(string),
Region: df["region"].(string),
Token: df["token"].(string),
Format: vla.format,
FormatVersion: uintOrDefault(vla.formatVersion),
Placement: vla.placement,
ResponseCondition: vla.responseCondition,
}
}
func (h *ScalyrServiceAttributeHandler) buildDelete(scalyrMap interface{}, serviceID string, serviceVersion int) *gofastly.DeleteScalyrInput {
df := scalyrMap.(map[string]interface{})
return &gofastly.DeleteScalyrInput{
ServiceID: serviceID,
ServiceVersion: serviceVersion,
Name: df["name"].(string),
}
}