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Merge pull request #315 from bharathkkb/feature/gke-safe-cluster
Safer Cluster module
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# Safer GKE Cluster | ||
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This example illustrates how to instantiate the opinionated Safer Cluster module. | ||
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<!-- BEGINNING OF PRE-COMMIT-TERRAFORM DOCS HOOK --> | ||
## Inputs | ||
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| Name | Description | Type | Default | Required | | ||
|------|-------------|:----:|:-----:|:-----:| | ||
| compute\_engine\_service\_account | Service account to associate to the nodes in the cluster | string | n/a | yes | | ||
| project\_id | The project ID to host the cluster in | string | n/a | yes | | ||
| region | The region to host the cluster in | string | `"us-central1"` | no | | ||
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## Outputs | ||
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| Name | Description | | ||
|------|-------------| | ||
| ca\_certificate | The cluster ca certificate (base64 encoded) | | ||
| client\_token | The bearer token for auth | | ||
| cluster\_name | Cluster name | | ||
| kubernetes\_endpoint | The cluster endpoint | | ||
| location | | | ||
| master\_kubernetes\_version | Kubernetes version of the master | | ||
| network\_name | The name of the VPC being created | | ||
| project\_id | The project ID the cluster is in | | ||
| region | The region in which the cluster resides | | ||
| service\_account | The service account to default running nodes as if not overridden in `node_pools`. | | ||
| subnet\_names | The names of the subnet being created | | ||
| zones | List of zones in which the cluster resides | | ||
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<!-- END OF PRE-COMMIT-TERRAFORM DOCS HOOK --> | ||
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To provision this example, run the following from within this directory: | ||
- `terraform init` to get the plugins | ||
- `terraform plan` to see the infrastructure plan | ||
- `terraform apply` to apply the infrastructure build | ||
- `terraform destroy` to destroy the built infrastructure |
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/** | ||
* Copyright 2018 Google LLC | ||
* | ||
* Licensed under the Apache License, Version 2.0 (the "License"); | ||
* you may not use this file except in compliance with the License. | ||
* You may obtain a copy of the License at | ||
* | ||
* http://www.apache.org/licenses/LICENSE-2.0 | ||
* | ||
* Unless required by applicable law or agreed to in writing, software | ||
* distributed under the License is distributed on an "AS IS" BASIS, | ||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
* See the License for the specific language governing permissions and | ||
* limitations under the License. | ||
*/ | ||
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resource "random_string" "suffix" { | ||
length = 4 | ||
special = false | ||
upper = false | ||
} | ||
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locals { | ||
cluster_type = "safer-cluster" | ||
network_name = "safer-cluster-network-${random_string.suffix.result}" | ||
subnet_name = "safer-cluster-subnet-${random_string.suffix.result}" | ||
master_auth_subnetwork = "safer-cluster-master-subnet-${random_string.suffix.result}" | ||
pods_range_name = "ip-range-pods-${random_string.suffix.result}" | ||
svc_range_name = "ip-range-svc-${random_string.suffix.result}" | ||
} | ||
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provider "google" { | ||
version = "~> 2.18.0" | ||
} | ||
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provider "google-beta" { | ||
version = "~> 2.18.0" | ||
} | ||
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module "gke" { | ||
source = "../../modules/safer-cluster/" | ||
project_id = var.project_id | ||
name = "${local.cluster_type}-cluster-${random_string.suffix.result}" | ||
regional = true | ||
region = var.region | ||
network = module.gcp-network.network_name | ||
subnetwork = module.gcp-network.subnets_names[0] | ||
ip_range_pods = local.pods_range_name | ||
ip_range_services = local.svc_range_name | ||
compute_engine_service_account = var.compute_engine_service_account | ||
master_ipv4_cidr_block = "172.16.0.0/28" | ||
master_authorized_networks_config = [ | ||
{ | ||
cidr_blocks = [ | ||
{ | ||
cidr_block = "10.60.0.0/17" | ||
display_name = "VPC" | ||
}, | ||
] | ||
}, | ||
] | ||
istio = true | ||
cloudrun = true | ||
} | ||
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data "google_client_config" "default" { | ||
} | ||
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/** | ||
* Copyright 2018 Google LLC | ||
* | ||
* Licensed under the Apache License, Version 2.0 (the "License"); | ||
* you may not use this file except in compliance with the License. | ||
* You may obtain a copy of the License at | ||
* | ||
* http://www.apache.org/licenses/LICENSE-2.0 | ||
* | ||
* Unless required by applicable law or agreed to in writing, software | ||
* distributed under the License is distributed on an "AS IS" BASIS, | ||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
* See the License for the specific language governing permissions and | ||
* limitations under the License. | ||
*/ | ||
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module "gcp-network" { | ||
source = "terraform-google-modules/network/google" | ||
version = "~> 1.4.0" | ||
project_id = var.project_id | ||
network_name = local.network_name | ||
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subnets = [ | ||
{ | ||
subnet_name = local.subnet_name | ||
subnet_ip = "10.0.0.0/17" | ||
subnet_region = var.region | ||
}, | ||
{ | ||
subnet_name = local.master_auth_subnetwork | ||
subnet_ip = "10.60.0.0/17" | ||
subnet_region = var.region | ||
}, | ||
] | ||
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secondary_ranges = { | ||
"${local.subnet_name}" = [ | ||
{ | ||
range_name = local.pods_range_name | ||
ip_cidr_range = "192.168.0.0/18" | ||
}, | ||
{ | ||
range_name = local.svc_range_name | ||
ip_cidr_range = "192.168.64.0/18" | ||
}, | ||
] | ||
} | ||
} |
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/** | ||
* Copyright 2018 Google LLC | ||
* | ||
* Licensed under the Apache License, Version 2.0 (the "License"); | ||
* you may not use this file except in compliance with the License. | ||
* You may obtain a copy of the License at | ||
* | ||
* http://www.apache.org/licenses/LICENSE-2.0 | ||
* | ||
* Unless required by applicable law or agreed to in writing, software | ||
* distributed under the License is distributed on an "AS IS" BASIS, | ||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
* See the License for the specific language governing permissions and | ||
* limitations under the License. | ||
*/ | ||
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output "kubernetes_endpoint" { | ||
description = "The cluster endpoint" | ||
sensitive = true | ||
value = module.gke.endpoint | ||
} | ||
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output "cluster_name" { | ||
description = "Cluster name" | ||
value = module.gke.name | ||
} | ||
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output "location" { | ||
value = module.gke.location | ||
} | ||
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output "master_kubernetes_version" { | ||
description = "Kubernetes version of the master" | ||
value = module.gke.master_version | ||
} | ||
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output "client_token" { | ||
description = "The bearer token for auth" | ||
sensitive = true | ||
value = base64encode(data.google_client_config.default.access_token) | ||
} | ||
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output "ca_certificate" { | ||
description = "The cluster ca certificate (base64 encoded)" | ||
value = module.gke.ca_certificate | ||
} | ||
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output "service_account" { | ||
description = "The service account to default running nodes as if not overridden in `node_pools`." | ||
value = module.gke.service_account | ||
} | ||
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output "network_name" { | ||
description = "The name of the VPC being created" | ||
value = module.gcp-network.network_name | ||
} | ||
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output "subnet_names" { | ||
description = "The names of the subnet being created" | ||
value = module.gcp-network.subnets_names | ||
} | ||
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output "region" { | ||
description = "The region in which the cluster resides" | ||
value = module.gke.region | ||
} | ||
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output "zones" { | ||
description = "List of zones in which the cluster resides" | ||
value = module.gke.zones | ||
} | ||
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output "project_id" { | ||
description = "The project ID the cluster is in" | ||
value = var.project_id | ||
} |
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/** | ||
* Copyright 2018 Google LLC | ||
* | ||
* Licensed under the Apache License, Version 2.0 (the "License"); | ||
* you may not use this file except in compliance with the License. | ||
* You may obtain a copy of the License at | ||
* | ||
* http://www.apache.org/licenses/LICENSE-2.0 | ||
* | ||
* Unless required by applicable law or agreed to in writing, software | ||
* distributed under the License is distributed on an "AS IS" BASIS, | ||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
* See the License for the specific language governing permissions and | ||
* limitations under the License. | ||
*/ | ||
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variable "project_id" { | ||
type = string | ||
description = "The project ID to host the cluster in" | ||
} | ||
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variable "region" { | ||
type = string | ||
description = "The region to host the cluster in" | ||
default = "us-central1" | ||
} | ||
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variable "compute_engine_service_account" { | ||
type = string | ||
description = "Service account to associate to the nodes in the cluster" | ||
} |
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/** | ||
* Copyright 2018 Google LLC | ||
* | ||
* Licensed under the Apache License, Version 2.0 (the "License"); | ||
* you may not use this file except in compliance with the License. | ||
* You may obtain a copy of the License at | ||
* | ||
* http://www.apache.org/licenses/LICENSE-2.0 | ||
* | ||
* Unless required by applicable law or agreed to in writing, software | ||
* distributed under the License is distributed on an "AS IS" BASIS, | ||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
* See the License for the specific language governing permissions and | ||
* limitations under the License. | ||
*/ | ||
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terraform { | ||
required_version = ">= 0.12" | ||
} |
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