terraform/builtin/providers/circonus/provider.go

136 lines
4.0 KiB
Go

package circonus
import (
"bytes"
"fmt"
"github.com/circonus-labs/circonus-gometrics/api"
"github.com/hashicorp/errwrap"
"github.com/hashicorp/terraform/helper/schema"
"github.com/hashicorp/terraform/terraform"
)
const (
defaultCirconus404ErrorString = "API response code 404:"
defaultCirconusAggregationWindow = "300s"
defaultCirconusAlertMinEscalateAfter = "300s"
defaultCirconusCheckPeriodMax = "300s"
defaultCirconusCheckPeriodMin = "30s"
defaultCirconusHTTPFormat = "json"
defaultCirconusHTTPMethod = "POST"
defaultCirconusSlackUsername = "Circonus"
defaultCirconusTimeoutMax = "300s"
defaultCirconusTimeoutMin = "0s"
maxSeverity = 5
minSeverity = 1
)
var providerDescription = map[string]string{
providerAPIURLAttr: "URL of the Circonus API",
providerAutoTagAttr: "Signals that the provider should automatically add a tag to all API calls denoting that the resource was created by Terraform",
providerKeyAttr: "API token used to authenticate with the Circonus API",
}
// Constants that want to be a constant but can't in Go
var (
validContactHTTPFormats = validStringValues{"json", "params"}
validContactHTTPMethods = validStringValues{"GET", "POST"}
)
type contactMethods string
// globalAutoTag controls whether or not the provider should automatically add a
// tag to each resource.
//
// NOTE(sean): This is done as a global variable because the diff suppress
// functions does not have access to the providerContext, only the key, old, and
// new values.
var globalAutoTag bool
type providerContext struct {
// Circonus API client
client *api.API
// autoTag, when true, automatically appends defaultCirconusTag
autoTag bool
// defaultTag make up the tag to be used when autoTag tags a tag.
defaultTag circonusTag
}
// Provider returns a terraform.ResourceProvider.
func Provider() terraform.ResourceProvider {
return &schema.Provider{
Schema: map[string]*schema.Schema{
providerAPIURLAttr: {
Type: schema.TypeString,
Optional: true,
Default: "https://api.circonus.com/v2",
Description: providerDescription[providerAPIURLAttr],
},
providerAutoTagAttr: {
Type: schema.TypeBool,
Optional: true,
Default: defaultAutoTag,
Description: providerDescription[providerAutoTagAttr],
},
providerKeyAttr: {
Type: schema.TypeString,
Required: true,
Sensitive: true,
DefaultFunc: schema.EnvDefaultFunc("CIRCONUS_API_TOKEN", nil),
Description: providerDescription[providerKeyAttr],
},
},
DataSourcesMap: map[string]*schema.Resource{
"circonus_account": dataSourceCirconusAccount(),
"circonus_collector": dataSourceCirconusCollector(),
},
ResourcesMap: map[string]*schema.Resource{
"circonus_check": resourceCheck(),
"circonus_contact_group": resourceContactGroup(),
"circonus_graph": resourceGraph(),
"circonus_metric": resourceMetric(),
"circonus_metric_cluster": resourceMetricCluster(),
"circonus_rule_set": resourceRuleSet(),
},
ConfigureFunc: providerConfigure,
}
}
func providerConfigure(d *schema.ResourceData) (interface{}, error) {
globalAutoTag = d.Get(providerAutoTagAttr).(bool)
config := &api.Config{
URL: d.Get(providerAPIURLAttr).(string),
TokenKey: d.Get(providerKeyAttr).(string),
TokenApp: tfAppName(),
}
client, err := api.NewAPI(config)
if err != nil {
return nil, errwrap.Wrapf("Error initializing Circonus: %s", err)
}
return &providerContext{
client: client,
autoTag: d.Get(providerAutoTagAttr).(bool),
defaultTag: defaultCirconusTag,
}, nil
}
func tfAppName() string {
const VersionPrerelease = terraform.VersionPrerelease
var versionString bytes.Buffer
fmt.Fprintf(&versionString, "Terraform v%s", terraform.Version)
if VersionPrerelease != "" {
fmt.Fprintf(&versionString, "-%s", VersionPrerelease)
}
return versionString.String()
}