Adds consul_prepared_query resource (#7474)
* provider/consul: first stab at adding prepared query support * provider/consul: flatten pq resource * provider/consul: implement updates for PQ's * provider/consul: implement PQ delete * provider/consul: add acceptance tests for prepared queries * provider/consul: add template support to PQ's * provider/consul: use substructures to express optional related components for PQs * website: first pass at consul prepared query docs * provider/consul: PQ's support datacenter option and store_token option * provider/consul: remove store_token on PQ's for now * provider/consul: allow specifying a separate stored_token * website: update consul PQ docs * website: add link to consul_prepared_query resource * vendor: update github.com/hashicorp/consul/api * provider/consul: handle 404's when reading prepared queries * provider/consul: prepared query failover dcs is a list * website: update consul PQ example usage * website: re-order arguments for consul prepared queries
This commit is contained in:
Ryan Uber
Paul Stack
parent
d7c028d210
commit
ec7fc60d5f
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@ -0,0 +1,271 @@
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package consul
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import (
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"strings"
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consulapi "github.com/hashicorp/consul/api"
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"github.com/hashicorp/terraform/helper/schema"
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)
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func resourceConsulPreparedQuery() *schema.Resource {
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return &schema.Resource{
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Create: resourceConsulPreparedQueryCreate,
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Update: resourceConsulPreparedQueryUpdate,
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Read: resourceConsulPreparedQueryRead,
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Delete: resourceConsulPreparedQueryDelete,
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SchemaVersion: 0,
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Schema: map[string]*schema.Schema{
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"id": &schema.Schema{
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Type: schema.TypeString,
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Computed: true,
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},
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"datacenter": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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},
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"name": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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},
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"session": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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},
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"token": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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},
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"stored_token": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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},
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"service": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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},
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"tags": &schema.Schema{
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Type: schema.TypeSet,
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Optional: true,
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Elem: &schema.Schema{Type: schema.TypeString},
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},
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"near": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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},
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"only_passing": &schema.Schema{
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Type: schema.TypeBool,
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Optional: true,
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},
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"failover": &schema.Schema{
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Type: schema.TypeList,
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Optional: true,
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MaxItems: 1,
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Elem: &schema.Resource{
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Schema: map[string]*schema.Schema{
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"nearest_n": &schema.Schema{
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Type: schema.TypeInt,
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Optional: true,
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},
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"datacenters": &schema.Schema{
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Type: schema.TypeList,
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Optional: true,
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Elem: &schema.Schema{Type: schema.TypeString},
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},
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},
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},
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},
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"dns": &schema.Schema{
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Type: schema.TypeList,
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Optional: true,
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MaxItems: 1,
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Elem: &schema.Resource{
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Schema: map[string]*schema.Schema{
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"ttl": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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},
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},
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},
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},
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"template": &schema.Schema{
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Type: schema.TypeList,
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MaxItems: 1,
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Optional: true,
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Elem: &schema.Resource{
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Schema: map[string]*schema.Schema{
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"type": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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},
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"regexp": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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},
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},
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},
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},
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},
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}
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}
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func resourceConsulPreparedQueryCreate(d *schema.ResourceData, meta interface{}) error {
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client := meta.(*consulapi.Client)
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wo := &consulapi.WriteOptions{
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Datacenter: d.Get("datacenter").(string),
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Token: d.Get("token").(string),
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}
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pq := preparedQueryDefinitionFromResourceData(d)
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id, _, err := client.PreparedQuery().Create(pq, wo)
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if err != nil {
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return err
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}
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d.SetId(id)
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return resourceConsulPreparedQueryRead(d, meta)
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}
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func resourceConsulPreparedQueryUpdate(d *schema.ResourceData, meta interface{}) error {
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client := meta.(*consulapi.Client)
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wo := &consulapi.WriteOptions{
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Datacenter: d.Get("datacenter").(string),
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Token: d.Get("token").(string),
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}
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pq := preparedQueryDefinitionFromResourceData(d)
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if _, err := client.PreparedQuery().Update(pq, wo); err != nil {
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return err
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}
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return resourceConsulPreparedQueryRead(d, meta)
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}
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func resourceConsulPreparedQueryRead(d *schema.ResourceData, meta interface{}) error {
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client := meta.(*consulapi.Client)
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qo := &consulapi.QueryOptions{
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Datacenter: d.Get("datacenter").(string),
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Token: d.Get("token").(string),
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}
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queries, _, err := client.PreparedQuery().Get(d.Id(), qo)
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if err != nil {
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// Check for a 404/not found, these are returned as errors.
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if strings.Contains(err.Error(), "not found") {
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d.SetId("")
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return nil
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}
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return err
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}
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if len(queries) != 1 {
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d.SetId("")
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return nil
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}
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pq := queries[0]
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d.Set("name", pq.Name)
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d.Set("session", pq.Session)
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d.Set("stored_token", pq.Token)
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d.Set("service", pq.Service.Service)
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d.Set("near", pq.Service.Near)
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d.Set("only_passing", pq.Service.OnlyPassing)
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d.Set("tags", pq.Service.Tags)
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if pq.Service.Failover.NearestN > 0 {
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d.Set("failover.0.nearest_n", pq.Service.Failover.NearestN)
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}
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if len(pq.Service.Failover.Datacenters) > 0 {
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d.Set("failover.0.datacenters", pq.Service.Failover.Datacenters)
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}
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if pq.DNS.TTL != "" {
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d.Set("dns.0.ttl", pq.DNS.TTL)
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}
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if pq.Template.Type != "" {
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d.Set("template.0.type", pq.Template.Type)
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d.Set("template.0.regexp", pq.Template.Regexp)
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}
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return nil
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}
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func resourceConsulPreparedQueryDelete(d *schema.ResourceData, meta interface{}) error {
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client := meta.(*consulapi.Client)
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qo := &consulapi.QueryOptions{
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Datacenter: d.Get("datacenter").(string),
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Token: d.Get("token").(string),
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}
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if _, err := client.PreparedQuery().Delete(d.Id(), qo); err != nil {
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return err
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}
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d.SetId("")
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return nil
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}
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func preparedQueryDefinitionFromResourceData(d *schema.ResourceData) *consulapi.PreparedQueryDefinition {
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pq := &consulapi.PreparedQueryDefinition{
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ID: d.Id(),
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Name: d.Get("name").(string),
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Session: d.Get("session").(string),
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Token: d.Get("stored_token").(string),
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Service: consulapi.ServiceQuery{
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Service: d.Get("service").(string),
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Near: d.Get("near").(string),
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OnlyPassing: d.Get("only_passing").(bool),
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},
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}
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tags := d.Get("tags").(*schema.Set).List()
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pq.Service.Tags = make([]string, len(tags))
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for i, v := range tags {
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pq.Service.Tags[i] = v.(string)
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}
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if _, ok := d.GetOk("failover.0"); ok {
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failover := consulapi.QueryDatacenterOptions{
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NearestN: d.Get("failover.0.nearest_n").(int),
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}
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dcs := d.Get("failover.0.datacenters").([]interface{})
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failover.Datacenters = make([]string, len(dcs))
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for i, v := range dcs {
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failover.Datacenters[i] = v.(string)
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}
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pq.Service.Failover = failover
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}
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if _, ok := d.GetOk("template.0"); ok {
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pq.Template = consulapi.QueryTemplate{
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Type: d.Get("template.0.type").(string),
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Regexp: d.Get("template.0.regexp").(string),
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}
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}
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if _, ok := d.GetOk("dns.0"); ok {
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pq.DNS = consulapi.QueryDNSOptions{
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TTL: d.Get("dns.0.ttl").(string),
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}
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}
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return pq
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}
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@ -0,0 +1,171 @@
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package consul
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import (
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"fmt"
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"testing"
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consulapi "github.com/hashicorp/consul/api"
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"github.com/hashicorp/terraform/helper/resource"
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"github.com/hashicorp/terraform/terraform"
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)
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func TestAccConsulPreparedQuery_basic(t *testing.T) {
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resource.Test(t, resource.TestCase{
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PreCheck: func() { testAccPreCheck(t) },
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Providers: testAccProviders,
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CheckDestroy: testAccCheckConsulPreparedQueryDestroy,
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Steps: []resource.TestStep{
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resource.TestStep{
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Config: testAccConsulPreparedQueryConfig,
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Check: resource.ComposeTestCheckFunc(
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testAccCheckConsulPreparedQueryExists(),
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testAccCheckConsulPreparedQueryAttrValue("name", "foo"),
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testAccCheckConsulPreparedQueryAttrValue("stored_token", "pq-token"),
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testAccCheckConsulPreparedQueryAttrValue("service", "redis"),
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testAccCheckConsulPreparedQueryAttrValue("near", "_agent"),
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testAccCheckConsulPreparedQueryAttrValue("tags.#", "1"),
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testAccCheckConsulPreparedQueryAttrValue("only_passing", "true"),
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testAccCheckConsulPreparedQueryAttrValue("failover.0.nearest_n", "3"),
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testAccCheckConsulPreparedQueryAttrValue("failover.0.datacenters.#", "2"),
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testAccCheckConsulPreparedQueryAttrValue("template.0.type", "name_prefix_match"),
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testAccCheckConsulPreparedQueryAttrValue("template.0.regexp", "hello"),
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testAccCheckConsulPreparedQueryAttrValue("dns.0.ttl", "8m"),
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),
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},
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resource.TestStep{
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Config: testAccConsulPreparedQueryConfigUpdate1,
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Check: resource.ComposeTestCheckFunc(
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testAccCheckConsulPreparedQueryExists(),
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testAccCheckConsulPreparedQueryAttrValue("name", "baz"),
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testAccCheckConsulPreparedQueryAttrValue("stored_token", "pq-token-updated"),
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testAccCheckConsulPreparedQueryAttrValue("service", "memcached"),
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testAccCheckConsulPreparedQueryAttrValue("near", "node1"),
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testAccCheckConsulPreparedQueryAttrValue("tags.#", "2"),
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testAccCheckConsulPreparedQueryAttrValue("only_passing", "false"),
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testAccCheckConsulPreparedQueryAttrValue("failover.0.nearest_n", "2"),
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testAccCheckConsulPreparedQueryAttrValue("failover.0.datacenters.#", "1"),
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testAccCheckConsulPreparedQueryAttrValue("template.0.regexp", "goodbye"),
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testAccCheckConsulPreparedQueryAttrValue("dns.0.ttl", "16m"),
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),
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},
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resource.TestStep{
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Config: testAccConsulPreparedQueryConfigUpdate2,
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Check: resource.ComposeTestCheckFunc(
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testAccCheckConsulPreparedQueryExists(),
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testAccCheckConsulPreparedQueryAttrValue("stored_token", ""),
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testAccCheckConsulPreparedQueryAttrValue("near", ""),
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testAccCheckConsulPreparedQueryAttrValue("tags.#", "0"),
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testAccCheckConsulPreparedQueryAttrValue("failover.#", "0"),
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testAccCheckConsulPreparedQueryAttrValue("template.#", "0"),
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testAccCheckConsulPreparedQueryAttrValue("dns.#", "0"),
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),
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},
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},
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})
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}
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func checkPreparedQueryExists(s *terraform.State) bool {
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rn, ok := s.RootModule().Resources["consul_prepared_query.foo"]
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if !ok {
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return false
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}
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id := rn.Primary.ID
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client := testAccProvider.Meta().(*consulapi.Client).PreparedQuery()
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opts := &consulapi.QueryOptions{Datacenter: "dc1"}
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pq, _, err := client.Get(id, opts)
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return err == nil && pq != nil
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}
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func testAccCheckConsulPreparedQueryDestroy(s *terraform.State) error {
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if checkPreparedQueryExists(s) {
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return fmt.Errorf("Prepared query 'foo' still exists")
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}
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return nil
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}
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func testAccCheckConsulPreparedQueryExists() resource.TestCheckFunc {
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return func(s *terraform.State) error {
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if !checkPreparedQueryExists(s) {
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return fmt.Errorf("Prepared query 'foo' does not exist")
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}
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return nil
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}
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}
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func testAccCheckConsulPreparedQueryAttrValue(attr, val string) resource.TestCheckFunc {
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return func(s *terraform.State) error {
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rn, ok := s.RootModule().Resources["consul_prepared_query.foo"]
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if !ok {
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return fmt.Errorf("Resource not found")
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}
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out, ok := rn.Primary.Attributes[attr]
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if !ok {
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return fmt.Errorf("Attribute '%s' not found: %#v", attr, rn.Primary.Attributes)
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}
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if out != val {
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return fmt.Errorf("Attribute '%s' value '%s' != '%s'", attr, out, val)
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}
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return nil
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}
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}
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const testAccConsulPreparedQueryConfig = `
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resource "consul_prepared_query" "foo" {
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name = "foo"
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token = "client-token"
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stored_token = "pq-token"
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service = "redis"
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tags = ["prod"]
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near = "_agent"
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only_passing = true
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failover {
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nearest_n = 3
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datacenters = ["dc1", "dc2"]
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}
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template {
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type = "name_prefix_match"
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regexp = "hello"
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}
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dns {
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ttl = "8m"
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}
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}
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`
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const testAccConsulPreparedQueryConfigUpdate1 = `
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resource "consul_prepared_query" "foo" {
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name = "baz"
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token = "client-token"
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stored_token = "pq-token-updated"
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service = "memcached"
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tags = ["prod","sup"]
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near = "node1"
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only_passing = false
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failover {
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nearest_n = 2
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datacenters = ["dc2"]
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}
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template {
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type = "name_prefix_match"
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regexp = "goodbye"
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}
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dns {
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ttl = "16m"
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}
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}
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`
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const testAccConsulPreparedQueryConfigUpdate2 = `
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resource "consul_prepared_query" "foo" {
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name = "baz"
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service = "memcached"
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token = "client-token"
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}
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`
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@ -66,6 +66,7 @@ func Provider() terraform.ResourceProvider {
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"consul_keys": resourceConsulKeys(),
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"consul_key_prefix": resourceConsulKeyPrefix(),
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"consul_node": resourceConsulNode(),
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"consul_prepared_query": resourceConsulPreparedQuery(),
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"consul_service": resourceConsulService(),
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},
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@ -25,6 +25,11 @@ type ServiceQuery struct {
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// Service is the service to query.
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Service string
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// Near allows baking in the name of a node to automatically distance-
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// sort from. The magic "_agent" value is supported, which sorts near
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// the agent which initiated the request by default.
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Near string
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// Failover controls what we do if there are no healthy nodes in the
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// local datacenter.
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Failover QueryDatacenterOptions
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@ -40,6 +45,17 @@ type ServiceQuery struct {
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Tags []string
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}
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// QueryTemplate carries the arguments for creating a templated query.
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type QueryTemplate struct {
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// Type specifies the type of the query template. Currently only
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// "name_prefix_match" is supported. This field is required.
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Type string
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// Regexp allows specifying a regex pattern to match against the name
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// of the query being executed.
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Regexp string
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}
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// PrepatedQueryDefinition defines a complete prepared query.
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type PreparedQueryDefinition struct {
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// ID is this UUID-based ID for the query, always generated by Consul.
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|
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@ -67,6 +83,11 @@ type PreparedQueryDefinition struct {
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// DNS has options that control how the results of this query are
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// served over DNS.
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DNS QueryDNSOptions
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||||
|
||||
// Template is used to pass through the arguments for creating a
|
||||
// prepared query with an attached template. If a template is given,
|
||||
// interpolations are possible in other struct fields.
|
||||
Template QueryTemplate
|
||||
}
|
||||
|
||||
// PreparedQueryExecuteResponse has the results of executing a query.
|
||||
|
|
|
|||
|
|
@ -902,11 +902,11 @@
|
|||
"revisionTime": "2016-07-26T16:33:11Z"
|
||||
},
|
||||
{
|
||||
"checksumSHA1": "glOabn8rkJvz7tjz/xfX4lmt070=",
|
||||
"checksumSHA1": "ZY6NCrR80zUmtOtPtKffbmFxRWw=",
|
||||
"comment": "v0.6.3-28-g3215b87",
|
||||
"path": "github.com/hashicorp/consul/api",
|
||||
"revision": "d4a8a43d2b600e662a50a75be70daed5fad8dd2d",
|
||||
"revisionTime": "2016-06-04T06:35:46Z"
|
||||
"revision": "6e061b2d580d80347b7c5c4dfc8730de7403a145",
|
||||
"revisionTime": "2016-07-03T02:45:54Z"
|
||||
},
|
||||
{
|
||||
"path": "github.com/hashicorp/errwrap",
|
||||
|
|
|
|||
|
|
@ -0,0 +1,99 @@
|
|||
---
|
||||
layout: "consul"
|
||||
page_title: "Consul: consul_prepared_query"
|
||||
sidebar_current: "docs-consul-resource-prepared-query"
|
||||
description: |-
|
||||
Allows Terraform to manage a Consul prepared query
|
||||
---
|
||||
|
||||
# consul\_prepared\_query
|
||||
|
||||
Allows Terraform to manage a Consul prepared query.
|
||||
|
||||
Managing prepared queries is done using Consul's REST API. This resource is
|
||||
useful to provide a consistent and declarative way of managing prepared
|
||||
queries in your Consul cluster using Terraform.
|
||||
|
||||
## Example Usage
|
||||
|
||||
```
|
||||
resource "consul_prepared_query" "service-near-self" {
|
||||
datacenter = "nyc1"
|
||||
token = "abcd"
|
||||
stored_token = "wxyz"
|
||||
name = ""
|
||||
only_passing = true
|
||||
near = "_agent"
|
||||
|
||||
template {
|
||||
type = "name_prefix_match"
|
||||
regexp = "^(.*)-near-self$"
|
||||
}
|
||||
|
||||
service = "$${match(1)}"
|
||||
|
||||
failover {
|
||||
nearest_n = 3
|
||||
datacenters = ["dc2", "dc3", "dc4"]
|
||||
}
|
||||
|
||||
dns {
|
||||
ttl = "5m"
|
||||
}
|
||||
|
||||
}
|
||||
```
|
||||
|
||||
## Argument Reference
|
||||
|
||||
The following arguments are supported:
|
||||
|
||||
* `datacenter` - (Optional) The datacenter to use. This overrides the
|
||||
datacenter in the provider setup and the agent's default datacenter.
|
||||
|
||||
* `token` - (Optional) The ACL token to use when saving the prepared query.
|
||||
This overrides the token that the agent provides by default.
|
||||
|
||||
* `stored_token` - (Optional) The ACL token to store with the prepared
|
||||
query. This token will be used by default whenever the query is executed.
|
||||
|
||||
* `name` - (Required) The name of the prepared query. Used to identify
|
||||
the prepared query during requests. Can be specified as an empty string
|
||||
to configure the query as a catch-all.
|
||||
|
||||
* `service` - (Required) The name of the service to query.
|
||||
|
||||
* `only_passing` - (Optional) When true, the prepared query will only
|
||||
return nodes with passing health checks in the result.
|
||||
|
||||
* `near` - (Optional) Allows specifying the name of a node to sort results
|
||||
near using Consul's distance sorting and network coordinates. The magic
|
||||
`_agent` value can be used to always sort nearest the node servicing the
|
||||
request.
|
||||
|
||||
* `failover` - (Optional) Options for controlling behavior when no healthy
|
||||
nodes are available in the local DC.
|
||||
|
||||
* `nearest_n` - (Optional) Return results from this many datacenters,
|
||||
sorted in ascending order of estimated RTT.
|
||||
|
||||
* `datacenters` - (Optional) Remote datacenters to return results from.
|
||||
|
||||
* `dns` - (Optional) Settings for controlling the DNS response details.
|
||||
|
||||
* `ttl` - (Optional) The TTL to send when returning DNS results.
|
||||
|
||||
* `template` - (Optional) Query templating options. This is used to make a
|
||||
single prepared query respond to many different requests.
|
||||
|
||||
* `type` - (Required) The type of template matching to perform. Currently
|
||||
only `name_prefix_match` is supported.
|
||||
|
||||
* `regexp` - (Required) The regular expression to match with. When using
|
||||
`name_prefix_match`, this regex is applied against the query name.
|
||||
|
||||
## Attributes Reference
|
||||
|
||||
The following attributes are exported:
|
||||
|
||||
* `id` - The ID of the prepared query, generated by Consul.
|
||||
|
|
@ -36,10 +36,14 @@
|
|||
</li>
|
||||
<li<%= sidebar_current("docs-consul-resource-node") %>>
|
||||
<a href="/docs/providers/consul/r/node.html">consul_node</a>
|
||||
</li>
|
||||
<li<%= sidebar_current("docs-consul-resource-prepared-query") %>>
|
||||
<a href="/docs/providers/consul/r/prepared_query.html">consul_prepared_query</a>
|
||||
</li>
|
||||
<li<%= sidebar_current("docs-consul-resource-service") %>>
|
||||
<a href="/docs/providers/consul/r/service.html">consul_service</a>
|
||||
</li>
|
||||
|
||||
</ul>
|
||||
</li>
|
||||
</ul>
|
||||
|
|
|
|||
Loading…
Reference in New Issue