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config.go
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config.go
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package container
import (
"encoding/base64"
"net/url"
"github.com/hashicorp/terraform-plugin-sdk/v2/terraform"
"github.com/crossplane/upjet/pkg/config"
"github.com/pkg/errors"
"k8s.io/client-go/tools/clientcmd"
clientcmdapi "k8s.io/client-go/tools/clientcmd/api"
"github.com/upbound/provider-gcp/config/common"
)
// Configure configures individual resources by adding custom
// ResourceConfigurators.
func Configure(p *config.Provider) { //nolint:gocyclo
p.AddResourceConfigurator("google_container_cluster", func(r *config.Resource) {
r.Kind = "Cluster"
r.LateInitializer = config.LateInitializer{
IgnoredFields: []string{
"cluster_ipv4_cidr",
"ip_allocation_policy",
"node_config",
"node_version",
"enable_autopilot",
"workload_identity_config",
"addons_config.network_policy_config",
"addons_config.gcp_filestore_csi_driver_config",
"addons_config.gcs_fuse_csi_driver_config",
"addons_config.dns_cache_config",
"default_max_pods_per_node",
"cluster_autoscaling.enabled",
"cluster_autoscaling.resource_limits",
"enable_intranode_visibility",
"network_policy",
"enable_shielded_nodes",
},
}
config.MoveToStatus(r.TerraformResource, "node_pool")
r.Sensitive.AdditionalConnectionDetailsFn = func(attr map[string]interface{}) (map[string][]byte, error) {
name, err := common.GetField(attr, "name")
if err != nil {
return nil, err
}
endpoint, err := common.GetField(attr, "endpoint")
if err != nil {
return nil, err
}
server, err := url.Parse(endpoint)
if err != nil {
return nil, errors.Wrapf(err, "cannot parse API server endpoint")
}
// NOTE(hasheddan): the endpoint returned is just an IP address, and
// clients will default to http, causing any authentication
// information to be omitted. We set to https to allow
// authentication.
server.Scheme = "https"
caData, err := common.GetField(attr, "master_auth[0].cluster_ca_certificate")
if err != nil {
return nil, err
}
caDataBytes, err := base64.StdEncoding.DecodeString(caData)
if err != nil {
return nil, errors.Wrapf(err, "cannot serialize cluster ca data")
}
clientCertData, err := common.GetField(attr, "master_auth[0].client_certificate")
if err != nil {
return nil, err
}
clientCertDataBytes, err := base64.StdEncoding.DecodeString(clientCertData)
if err != nil {
return nil, errors.Wrapf(err, "cannot serialize cluster client cert data")
}
clientKeyData, err := common.GetField(attr, "master_auth[0].client_key")
if err != nil {
return nil, err
}
clientKeyDataBytes, err := base64.StdEncoding.DecodeString(clientKeyData)
if err != nil {
return nil, errors.Wrapf(err, "cannot serialize cluster client key data")
}
kc := clientcmdapi.Config{
Kind: "Config",
APIVersion: "v1",
Clusters: map[string]*clientcmdapi.Cluster{
name: {
Server: server.String(),
CertificateAuthorityData: caDataBytes,
},
},
AuthInfos: map[string]*clientcmdapi.AuthInfo{
name: {
ClientCertificateData: clientCertDataBytes,
ClientKeyData: clientKeyDataBytes,
},
},
Contexts: map[string]*clientcmdapi.Context{
name: {
Cluster: name,
AuthInfo: name,
},
},
CurrentContext: name,
}
kcb, err := clientcmd.Write(kc)
if err != nil {
return nil, errors.Wrap(err, "cannot serialize kubeconfig")
}
return map[string][]byte{
"kubeconfig": kcb,
}, nil
}
r.References["network"] = config.Reference{
Type: "github.com/upbound/provider-gcp/apis/compute/v1beta1.Network",
Extractor: common.PathSelfLinkExtractor,
}
r.References["subnetwork"] = config.Reference{
Type: "github.com/upbound/provider-gcp/apis/compute/v1beta1.Subnetwork",
Extractor: common.PathSelfLinkExtractor,
}
config.MarkAsRequired(r.TerraformResource, "location")
})
p.AddResourceConfigurator("google_container_node_pool", func(r *config.Resource) {
r.Kind = "NodePool"
r.LateInitializer = config.LateInitializer{
IgnoredFields: []string{
"version",
},
}
r.References["cluster"] = config.Reference{
Type: "Cluster",
Extractor: common.ExtractResourceIDFuncPath,
}
r.ServerSideApplyMergeStrategies["node_config"] = config.MergeStrategy{
ListMergeStrategy: config.ListMergeStrategy{
MergeStrategy: config.ListTypeMap,
ListMapKeys: config.ListMapKeys{
InjectedKey: config.InjectedKey{
Key: "index",
DefaultValue: `"0"`,
},
},
},
}
r.TerraformCustomDiff = func(diff *terraform.InstanceDiff, _ *terraform.InstanceState, _ *terraform.ResourceConfig) (*terraform.InstanceDiff, error) {
if diff == nil || diff.Destroy {
return diff, nil
}
if ppDiff, ok := diff.Attributes["placement_policy.#"]; ok && ppDiff.Old == "" && ppDiff.New == "" {
delete(diff.Attributes, "placement_policy.#")
}
if asDiff, ok := diff.Attributes["autoscaling.#"]; ok && asDiff.Old == "" && asDiff.New == "" {
delete(diff.Attributes, "autoscaling.#")
}
return diff, nil
}
})
}