terraform/builtin/providers/aws/resource_aws_autoscaling_gr...

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package aws
import (
"fmt"
"log"
"strconv"
"github.com/hashicorp/terraform/flatmap"
"github.com/hashicorp/terraform/helper/config"
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"github.com/hashicorp/terraform/helper/diff"
"github.com/hashicorp/terraform/terraform"
"github.com/mitchellh/goamz/autoscaling"
)
func resource_aws_autoscaling_group_create(
s *terraform.ResourceState,
d *terraform.ResourceDiff,
meta interface{}) (*terraform.ResourceState, error) {
p := meta.(*ResourceProvider)
autoscalingconn := p.autoscalingconn
// Merge the diff into the state so that we have all the attributes
// properly.
rs := s.MergeDiff(d)
var err error
autoScalingGroupOpts := autoscaling.CreateAutoScalingGroup{}
if rs.Attributes["min_size"] != "" {
autoScalingGroupOpts.MinSize, err = strconv.Atoi(rs.Attributes["min_size"])
autoScalingGroupOpts.SetMinSize = true
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}
if rs.Attributes["max_size"] != "" {
autoScalingGroupOpts.MaxSize, err = strconv.Atoi(rs.Attributes["max_size"])
autoScalingGroupOpts.SetMaxSize = true
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}
if rs.Attributes["default_cooldown"] != "" {
autoScalingGroupOpts.DefaultCooldown, err = strconv.Atoi(rs.Attributes["default_cooldown"])
autoScalingGroupOpts.SetDefaultCooldown = true
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}
if rs.Attributes["desired_capacity"] != "" {
autoScalingGroupOpts.DesiredCapacity, err = strconv.Atoi(rs.Attributes["desired_capacity"])
autoScalingGroupOpts.SetDesiredCapacity = true
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}
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if rs.Attributes["health_check_grace_period"] != "" {
autoScalingGroupOpts.HealthCheckGracePeriod, err = strconv.Atoi(rs.Attributes["health_check_grace_period"])
autoScalingGroupOpts.SetHealthCheckGracePeriod = true
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}
if err != nil {
return nil, fmt.Errorf("Error parsing configuration: %s", err)
}
if _, ok := rs.Attributes["availability_zones.#"]; ok {
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autoScalingGroupOpts.AvailZone = expandStringList(flatmap.Expand(
rs.Attributes, "availability_zones").([]interface{}))
}
if _, ok := rs.Attributes["load_balancers.#"]; ok {
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autoScalingGroupOpts.LoadBalancerNames = expandStringList(flatmap.Expand(
rs.Attributes, "load_balancers").([]interface{}))
}
if _, ok := rs.Attributes["vpc_identifier.#"]; ok {
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autoScalingGroupOpts.VPCZoneIdentifier = expandStringList(flatmap.Expand(
rs.Attributes, "vpc_identifier").([]interface{}))
}
autoScalingGroupOpts.Name = rs.Attributes["name"]
autoScalingGroupOpts.HealthCheckType = rs.Attributes["health_check_type"]
autoScalingGroupOpts.LaunchConfigurationName = rs.Attributes["launch_configuration"]
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log.Printf("[DEBUG] AutoScaling Group create configuration: %#v", autoScalingGroupOpts)
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_, err = autoscalingconn.CreateAutoScalingGroup(&autoScalingGroupOpts)
if err != nil {
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return nil, fmt.Errorf("Error creating AutoScaling Group: %s", err)
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}
rs.ID = rs.Attributes["name"]
rs.Dependencies = []terraform.ResourceDependency{
terraform.ResourceDependency{ID: rs.Attributes["launch_configuration"]},
}
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log.Printf("[INFO] AutoScaling Group ID: %s", rs.ID)
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g, err := resource_aws_autoscaling_group_retrieve(rs.ID, autoscalingconn)
if err != nil {
return rs, err
}
return resource_aws_autoscaling_group_update_state(rs, g)
}
func resource_aws_autoscaling_group_update(
s *terraform.ResourceState,
d *terraform.ResourceDiff,
meta interface{}) (*terraform.ResourceState, error) {
p := meta.(*ResourceProvider)
autoscalingconn := p.autoscalingconn
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rs := s.MergeDiff(d)
opts := autoscaling.UpdateAutoScalingGroup{
Name: rs.ID,
}
var err error
if _, ok := d.Attributes["min_size"]; ok {
opts.MinSize, err = strconv.Atoi(rs.Attributes["min_size"])
opts.SetMinSize = true
}
if _, ok := d.Attributes["max_size"]; ok {
opts.MaxSize, err = strconv.Atoi(rs.Attributes["max_size"])
opts.SetMaxSize = true
}
if err != nil {
return s, fmt.Errorf("Error parsing configuration: %s", err)
}
log.Printf("[DEBUG] AutoScaling Group update configuration: %#v", opts)
_, err = autoscalingconn.UpdateAutoScalingGroup(&opts)
if err != nil {
return rs, fmt.Errorf("Error updating AutoScaling group: %s", err)
}
g, err := resource_aws_autoscaling_group_retrieve(rs.ID, autoscalingconn)
if err != nil {
return rs, err
}
return resource_aws_autoscaling_group_update_state(rs, g)
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}
func resource_aws_autoscaling_group_destroy(
s *terraform.ResourceState,
meta interface{}) error {
p := meta.(*ResourceProvider)
autoscalingconn := p.autoscalingconn
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log.Printf("[DEBUG] AutoScaling Group destroy: %v", s.ID)
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deleteopts := autoscaling.DeleteAutoScalingGroup{Name: s.ID}
// You can force an autoscaling group to delete
// even if it's in the process of scaling a resource.
// Normally, you would set the min-size and max-size to 0,0
// and then delete the group. This bypasses that and leaves
// resources potentially dangling.
if s.Attributes["force_delete"] != "" {
deleteopts.ForceDelete = true
}
_, err := autoscalingconn.DeleteAutoScalingGroup(&deleteopts)
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if err != nil {
autoscalingerr, ok := err.(*autoscaling.Error)
if ok && autoscalingerr.Code == "InvalidGroup.NotFound" {
return nil
}
return err
}
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return nil
}
func resource_aws_autoscaling_group_refresh(
s *terraform.ResourceState,
meta interface{}) (*terraform.ResourceState, error) {
p := meta.(*ResourceProvider)
autoscalingconn := p.autoscalingconn
g, err := resource_aws_autoscaling_group_retrieve(s.ID, autoscalingconn)
if err != nil {
return s, err
}
return resource_aws_autoscaling_group_update_state(s, g)
}
func resource_aws_autoscaling_group_diff(
s *terraform.ResourceState,
c *terraform.ResourceConfig,
meta interface{}) (*terraform.ResourceDiff, error) {
b := &diff.ResourceBuilder{
Attrs: map[string]diff.AttrType{
"availability_zone": diff.AttrTypeCreate,
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"default_cooldown": diff.AttrTypeCreate,
"desired_capacity": diff.AttrTypeCreate,
"force_delete": diff.AttrTypeCreate,
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"health_check_grace_period": diff.AttrTypeCreate,
"health_check_type": diff.AttrTypeCreate,
"launch_configuration": diff.AttrTypeCreate,
"load_balancers": diff.AttrTypeCreate,
"name": diff.AttrTypeCreate,
"vpc_zone_identifier": diff.AttrTypeCreate,
"max_size": diff.AttrTypeUpdate,
"min_size": diff.AttrTypeUpdate,
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},
ComputedAttrs: []string{
"health_check_grace_period",
"health_check_type",
"default_cooldown",
"vpc_zone_identifier",
"desired_capacity",
"force_delete",
},
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}
return b.Diff(s, c)
}
func resource_aws_autoscaling_group_update_state(
s *terraform.ResourceState,
g *autoscaling.AutoScalingGroup) (*terraform.ResourceState, error) {
s.Attributes["min_size"] = strconv.Itoa(g.MinSize)
s.Attributes["max_size"] = strconv.Itoa(g.MaxSize)
s.Attributes["default_cooldown"] = strconv.Itoa(g.DefaultCooldown)
s.Attributes["name"] = g.Name
s.Attributes["desired_capacity"] = strconv.Itoa(g.DesiredCapacity)
s.Attributes["health_check_grace_period"] = strconv.Itoa(g.HealthCheckGracePeriod)
s.Attributes["health_check_type"] = g.HealthCheckType
s.Attributes["launch_configuration"] = g.LaunchConfigurationName
s.Attributes["vpc_zone_identifier"] = g.VPCZoneIdentifier
// Flatten our group values
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toFlatten := make(map[string]interface{})
// Special case the return of amazons load balancers names in the XML having
// a blank entry
if len(g.LoadBalancerNames) > 0 && g.LoadBalancerNames[0].LoadBalancerName != "" {
toFlatten["load_balancers"] = flattenLoadBalancers(g.LoadBalancerNames)
}
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toFlatten["availability_zones"] = flattenAvailabilityZones(g.AvailabilityZones)
for k, v := range flatmap.Flatten(toFlatten) {
s.Attributes[k] = v
}
return s, nil
}
// Returns a single group by its ID
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func resource_aws_autoscaling_group_retrieve(id string, autoscalingconn *autoscaling.AutoScaling) (*autoscaling.AutoScalingGroup, error) {
describeOpts := autoscaling.DescribeAutoScalingGroups{
Names: []string{id},
}
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log.Printf("[DEBUG] AutoScaling Group describe configuration: %#v", describeOpts)
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describeGroups, err := autoscalingconn.DescribeAutoScalingGroups(&describeOpts)
if err != nil {
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return nil, fmt.Errorf("Error retrieving AutoScaling groups: %s", err)
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}
// Verify AWS returned our sg
if len(describeGroups.AutoScalingGroups) != 1 ||
describeGroups.AutoScalingGroups[0].Name != id {
if err != nil {
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return nil, fmt.Errorf("Unable to find AutoScaling group: %#v", describeGroups.AutoScalingGroups)
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}
}
g := describeGroups.AutoScalingGroups[0]
return &g, nil
}
func resource_aws_autoscaling_group_validation() *config.Validator {
return &config.Validator{
Required: []string{
"name",
"max_size",
"min_size",
"availability_zones.*",
"launch_configuration",
},
Optional: []string{
"health_check_grace_period",
"health_check_type",
"desired_capacity",
"force_delete",
},
}
}