mirror of https://github.com/kubernetes/kops.git
150 lines
3.9 KiB
Go
150 lines
3.9 KiB
Go
/*
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Copyright 2022 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package gcetasks
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import (
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"fmt"
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compute "google.golang.org/api/compute/v1"
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"k8s.io/klog/v2"
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"k8s.io/kops/upup/pkg/fi"
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"k8s.io/kops/upup/pkg/fi/cloudup/gce"
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"k8s.io/kops/upup/pkg/fi/cloudup/terraform"
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"k8s.io/kops/upup/pkg/fi/cloudup/terraformWriter"
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)
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// +kops:fitask
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// HealthCheck represents a GCE "healthcheck" type - this is the
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// non-deprecated new-style HC, which combines the deprecated HTTPHealthCheck
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// and HTTPSHealthCheck. Those HCs are still needed for some types, so both
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// are implemented in kops, but this one should be preferred when possible.
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type HealthCheck struct {
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Name *string
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Port int64
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Lifecycle fi.Lifecycle
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}
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var _ fi.CompareWithID = &HealthCheck{}
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func (e *HealthCheck) CompareWithID() *string {
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return e.Name
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}
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func (e *HealthCheck) Find(c *fi.CloudupContext) (*HealthCheck, error) {
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actual, err := e.find(c.T.Cloud.(gce.GCECloud))
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if actual != nil && err == nil {
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// Ignore system fields
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actual.Lifecycle = e.Lifecycle
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}
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return actual, err
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}
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func (e *HealthCheck) URL(cloud gce.GCECloud) string {
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return fmt.Sprintf("https://www.googleapis.com/compute/v1/projects/%s/regions/%s/healthChecks/%s",
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cloud.Project(),
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cloud.Region(),
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*e.Name)
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}
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func (e *HealthCheck) find(cloud gce.GCECloud) (*HealthCheck, error) {
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r, err := cloud.Compute().RegionHealthChecks().Get(cloud.Project(), cloud.Region(), *e.Name)
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if err != nil {
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if gce.IsNotFound(err) {
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return nil, nil
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}
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return nil, fmt.Errorf("error listing Health Checks: %v", err)
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}
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actual := &HealthCheck{}
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actual.Name = &r.Name
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if r.TcpHealthCheck != nil {
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actual.Port = r.TcpHealthCheck.Port
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}
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return actual, nil
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}
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func (e *HealthCheck) Run(c *fi.CloudupContext) error {
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return fi.CloudupDefaultDeltaRunMethod(e, c)
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}
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func (_ *HealthCheck) CheckChanges(a, e, changes *HealthCheck) error {
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if a != nil {
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if changes.Name != nil {
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return fi.CannotChangeField("Name")
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}
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if e.Port != a.Port {
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return fi.CannotChangeField("Port")
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}
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}
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return nil
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}
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func (_ *HealthCheck) RenderGCE(t *gce.GCEAPITarget, a, e, changes *HealthCheck) error {
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cloud := t.Cloud
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hc := &compute.HealthCheck{
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Name: *e.Name,
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TcpHealthCheck: &compute.TCPHealthCheck{
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Port: e.Port,
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},
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Type: "TCP",
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Region: cloud.Region(),
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}
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if a == nil {
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klog.V(2).Infof("Creating HealthCheck %q", hc.Name)
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op, err := cloud.Compute().RegionHealthChecks().Insert(cloud.Project(), cloud.Region(), hc)
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if err != nil {
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return fmt.Errorf("error creating healthcheck: %v", err)
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}
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if err := cloud.WaitForOp(op); err != nil {
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return fmt.Errorf("error waiting for healthcheck: %v", err)
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}
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} else {
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return fmt.Errorf("cannot apply changes to healthcheck: %v", changes)
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}
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return nil
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}
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type terraformTCPBlock struct {
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Port int64 `cty:"port"`
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}
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type terraformHealthCheck struct {
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Name string `cty:"name"`
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TCPHealthCheck terraformTCPBlock `cty:"tcp_health_check"`
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}
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func (_ *HealthCheck) RenderTerraform(t *terraform.TerraformTarget, a, e, changes *HealthCheck) error {
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tf := &terraformHealthCheck{
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Name: *e.Name,
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TCPHealthCheck: terraformTCPBlock{
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Port: e.Port,
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},
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}
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return t.RenderResource("google_compute_region_health_check", *e.Name, tf)
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}
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func (e *HealthCheck) TerraformAddress() *terraformWriter.Literal {
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return terraformWriter.LiteralProperty("google_compute_region_health_check", *e.Name, "id")
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}
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