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block_fastly_service_v1_logging_openstack.go
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block_fastly_service_v1_logging_openstack.go
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package fastly
import (
"fmt"
"log"
gofastly "github.com/fastly/go-fastly/v3/fastly"
"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
)
type OpenstackServiceAttributeHandler struct {
*DefaultServiceAttributeHandler
}
func NewServiceLoggingOpenstack(sa ServiceMetadata) ServiceAttributeDefinition {
return &OpenstackServiceAttributeHandler{
&DefaultServiceAttributeHandler{
key: "logging_openstack",
serviceMetadata: sa,
},
}
}
func (h *OpenstackServiceAttributeHandler) Process(d *schema.ResourceData, latestVersion int, conn *gofastly.Client) error {
serviceID := d.Id()
ol, nl := d.GetChange(h.GetKey())
if ol == nil {
ol = new(schema.Set)
}
if nl == nil {
nl = new(schema.Set)
}
oldSet := ol.(*schema.Set)
newSet := nl.(*schema.Set)
setDiff := NewSetDiff(func(resource interface{}) (interface{}, error) {
t, ok := resource.(map[string]interface{})
if !ok {
return nil, fmt.Errorf("resource failed to be type asserted: %+v", resource)
}
return t["name"], nil
})
diffResult, err := setDiff.Diff(oldSet, newSet)
if err != nil {
return err
}
// DELETE removed resources
for _, resource := range diffResult.Deleted {
resource := resource.(map[string]interface{})
opts := h.buildDelete(resource, serviceID, latestVersion)
log.Printf("[DEBUG] Fastly OpenStack logging endpoint removal opts: %#v", opts)
if err := deleteOpenstack(conn, opts); err != nil {
return err
}
}
// CREATE new resources
for _, resource := range diffResult.Added {
resource := resource.(map[string]interface{})
// @HACK for a TF SDK Issue.
//
// This ensures that the required, `name`, field is present.
//
// If we have made it this far and `name` is not present, it is most-likely due
// to a defunct diff as noted here - https://github.com/hashicorp/terraform-plugin-sdk/issues/160#issuecomment-522935697.
//
// This is caused by using a StateFunc in a nested TypeSet. While the StateFunc
// properly handles setting state with the StateFunc, it returns extra entries
// during state Gets, specifically `GetChange("logging_openstack")` in this case.
if v, ok := resource["name"]; !ok || v.(string) == "" {
continue
}
opts := h.buildCreate(resource, serviceID, latestVersion)
log.Printf("[DEBUG] Fastly OpenStack logging addition opts: %#v", opts)
if err := createOpenstack(conn, opts); err != nil {
return err
}
}
// UPDATE modified resources
//
// NOTE: although the go-fastly API client enables updating of a resource by
// its 'name' attribute, this isn't possible within terraform due to
// constraints in the data model/schema of the resources not having a uid.
for _, resource := range diffResult.Modified {
resource := resource.(map[string]interface{})
opts := gofastly.UpdateOpenstackInput{
ServiceID: d.Id(),
ServiceVersion: latestVersion,
Name: resource["name"].(string),
}
// only attempt to update attributes that have changed
modified := setDiff.Filter(resource, oldSet)
// NOTE: where we transition between interface{} we lose the ability to
// infer the underlying type being either a uint vs an int. This
// materializes as a panic (yay) and so it's only at runtime we discover
// this and so we've updated the below code to convert the type asserted
// int into a uint before passing the value to gofastly.Uint().
if v, ok := modified["access_key"]; ok {
opts.AccessKey = gofastly.String(v.(string))
}
if v, ok := modified["bucket_name"]; ok {
opts.BucketName = gofastly.String(v.(string))
}
if v, ok := modified["url"]; ok {
opts.URL = gofastly.String(v.(string))
}
if v, ok := modified["user"]; ok {
opts.User = gofastly.String(v.(string))
}
if v, ok := modified["path"]; ok {
opts.Path = gofastly.String(v.(string))
}
if v, ok := modified["placement"]; ok {
opts.Placement = gofastly.String(v.(string))
}
if v, ok := modified["period"]; ok {
opts.Period = gofastly.Uint(uint(v.(int)))
}
if v, ok := modified["compression_codec"]; ok {
opts.CompressionCodec = gofastly.String(v.(string))
}
if v, ok := modified["gzip_level"]; ok {
opts.GzipLevel = gofastly.Uint(uint(v.(int)))
}
if v, ok := modified["format"]; ok {
opts.Format = gofastly.String(v.(string))
}
if v, ok := modified["format_version"]; ok {
opts.FormatVersion = gofastly.Uint(uint(v.(int)))
}
if v, ok := modified["response_condition"]; ok {
opts.ResponseCondition = gofastly.String(v.(string))
}
if v, ok := modified["message_type"]; ok {
opts.MessageType = gofastly.String(v.(string))
}
if v, ok := modified["timestamp_format"]; ok {
opts.TimestampFormat = gofastly.String(v.(string))
}
if v, ok := modified["public_key"]; ok {
opts.PublicKey = gofastly.String(v.(string))
}
log.Printf("[DEBUG] Update OpenStack Opts: %#v", opts)
_, err := conn.UpdateOpenstack(&opts)
if err != nil {
return err
}
}
return nil
}
func (h *OpenstackServiceAttributeHandler) Read(d *schema.ResourceData, s *gofastly.ServiceDetail, conn *gofastly.Client) error {
// Refresh OpenStack.
log.Printf("[DEBUG] Refreshing OpenStack logging endpoints for (%s)", d.Id())
openstackList, err := conn.ListOpenstack(&gofastly.ListOpenstackInput{
ServiceID: d.Id(),
ServiceVersion: s.ActiveVersion.Number,
})
if err != nil {
return fmt.Errorf("[ERR] Error looking up OpenStack logging endpoints for (%s), version (%v): %s", d.Id(), s.ActiveVersion.Number, err)
}
ell := flattenOpenstack(openstackList)
for _, element := range ell {
element = h.pruneVCLLoggingAttributes(element)
}
if err := d.Set(h.GetKey(), ell); err != nil {
log.Printf("[WARN] Error setting OpenStack logging endpoints for (%s): %s", d.Id(), err)
}
return nil
}
func createOpenstack(conn *gofastly.Client, i *gofastly.CreateOpenstackInput) error {
_, err := conn.CreateOpenstack(i)
return err
}
func deleteOpenstack(conn *gofastly.Client, i *gofastly.DeleteOpenstackInput) error {
err := conn.DeleteOpenstack(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 flattenOpenstack(openstackList []*gofastly.Openstack) []map[string]interface{} {
var lsl []map[string]interface{}
for _, ll := range openstackList {
// Convert OpenStack logging to a map for saving to state.
nll := map[string]interface{}{
"name": ll.Name,
"url": ll.URL,
"user": ll.User,
"bucket_name": ll.BucketName,
"access_key": ll.AccessKey,
"public_key": ll.PublicKey,
"gzip_level": ll.GzipLevel,
"message_type": ll.MessageType,
"path": ll.Path,
"period": ll.Period,
"timestamp_format": ll.TimestampFormat,
"format": ll.Format,
"format_version": ll.FormatVersion,
"placement": ll.Placement,
"response_condition": ll.ResponseCondition,
"compression_codec": ll.CompressionCodec,
}
// Prune any empty values that come from the default string value in structs.
for k, v := range nll {
if v == "" {
delete(nll, k)
}
}
lsl = append(lsl, nll)
}
return lsl
}
func (h *OpenstackServiceAttributeHandler) buildCreate(openstackMap interface{}, serviceID string, serviceVersion int) *gofastly.CreateOpenstackInput {
df := openstackMap.(map[string]interface{})
var vla = h.getVCLLoggingAttributes(df)
return &gofastly.CreateOpenstackInput{
ServiceID: serviceID,
ServiceVersion: serviceVersion,
Name: df["name"].(string),
URL: df["url"].(string),
User: df["user"].(string),
BucketName: df["bucket_name"].(string),
AccessKey: df["access_key"].(string),
PublicKey: df["public_key"].(string),
GzipLevel: uint(df["gzip_level"].(int)),
MessageType: df["message_type"].(string),
Path: df["path"].(string),
Period: uint(df["period"].(int)),
TimestampFormat: df["timestamp_format"].(string),
CompressionCodec: df["compression_codec"].(string),
Format: vla.format,
FormatVersion: uintOrDefault(vla.formatVersion),
Placement: vla.placement,
ResponseCondition: vla.responseCondition,
}
}
func (h *OpenstackServiceAttributeHandler) buildDelete(openstackMap interface{}, serviceID string, serviceVersion int) *gofastly.DeleteOpenstackInput {
df := openstackMap.(map[string]interface{})
return &gofastly.DeleteOpenstackInput{
ServiceID: serviceID,
ServiceVersion: serviceVersion,
Name: df["name"].(string),
}
}
func (h *OpenstackServiceAttributeHandler) 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 OpenStack logging endpoint. It is important to note that changing this attribute will delete and recreate the resource",
},
"url": {
Type: schema.TypeString,
Required: true,
Description: "Your OpenStack auth url",
},
"user": {
Type: schema.TypeString,
Required: true,
Description: "The username for your OpenStack account",
},
"bucket_name": {
Type: schema.TypeString,
Required: true,
Description: "The name of your OpenStack container",
},
"access_key": {
Type: schema.TypeString,
Required: true,
Sensitive: true,
Description: "Your OpenStack account access key",
},
// Optional fields
"public_key": {
Type: schema.TypeString,
Optional: true,
Description: "A PGP public key that Fastly will use to encrypt your log files before writing them to disk",
// Related issue for weird behavior - https://github.com/hashicorp/terraform-plugin-sdk/issues/160
StateFunc: trimSpaceStateFunc,
},
"gzip_level": {
Type: schema.TypeInt,
Optional: true,
Default: 0,
Description: "What level of Gzip encoding to have when dumping logs (default `0`, no compression)",
},
"period": {
Type: schema.TypeInt,
Optional: true,
Default: 3600,
Description: "How frequently the logs should be transferred, in seconds. Default `3600`",
},
"path": {
Type: schema.TypeString,
Optional: true,
Description: "Path to store the files. Must end with a trailing slash. If this field is left empty, the files will be saved in the bucket's root path",
},
"message_type": {
Type: schema.TypeString,
Optional: true,
Default: "classic",
Description: "How the message should be formatted; one of: `classic`, `loggly`, `logplex` or `blank`. Default `classic`. [Fastly Documentation](https://developer.fastly.com/reference/api/logging/gcs/)",
ValidateDiagFunc: validateLoggingMessageType(),
},
"timestamp_format": {
Type: schema.TypeString,
Optional: true,
Default: "%Y-%m-%dT%H:%M:%S.000",
Description: "specified timestamp formatting (default `%Y-%m-%dT%H:%M:%S.000`)",
},
"compression_codec": {
Type: schema.TypeString,
Optional: true,
Description: `The codec used for compression of your logs. Valid values are zstd, snappy, and gzip. If the specified codec is "gzip", gzip_level will default to 3. To specify a different level, leave compression_codec blank and explicitly set the level using gzip_level. Specifying both compression_codec and gzip_level in the same API request will result in an error.`,
ValidateDiagFunc: validateLoggingCompressionCodec(),
},
}
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`).",
ValidateDiagFunc: validateLoggingFormatVersion(),
}
blockAttributes["placement"] = &schema.Schema{
Type: schema.TypeString,
Optional: true,
Description: "Where in the generated VCL the logging call should be placed. Can be `none` or `waf_debug`.",
ValidateDiagFunc: 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
}