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main.tf
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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.
*/
locals {
cluster_endpoint = "https://${var.cluster_endpoint}"
token = data.google_client_config.default.access_token
cluster_ca_certificate = data.google_container_cluster.primary.master_auth.0.cluster_ca_certificate
private_key = var.create_ssh_key && var.ssh_auth_key == null ? tls_private_key.k8sop_creds[0].private_key_pem : file(var.ssh_auth_key)
k8sop_creds_secret_key = var.secret_type == "cookiefile" ? "cookie_file" : var.secret_type
should_download_manifest = var.operator_path == null ? true : false
manifest_path = local.should_download_manifest ? "${path.root}/.terraform/tmp/config-management-operator.yaml" : var.operator_path
}
data "google_container_cluster" "primary" {
name = var.cluster_name
project = var.project_id
location = var.location
}
data "google_client_config" "default" {
}
module "k8sop_manifest" {
source = "terraform-google-modules/gcloud/google"
version = "~> 1.0"
enabled = local.should_download_manifest
skip_download = var.skip_gcloud_download
create_cmd_entrypoint = "gsutil"
create_cmd_body = "cp ${var.operator_latest_manifest_url} ${local.manifest_path}"
destroy_cmd_entrypoint = "rm"
destroy_cmd_body = "-f ${local.manifest_path}"
}
module "k8s_operator" {
source = "terraform-google-modules/gcloud/google"
version = "~> 1.0"
module_depends_on = [module.k8sop_manifest.wait, data.google_client_config.default.project, data.google_container_cluster.primary.name]
additional_components = ["kubectl"]
skip_download = var.skip_gcloud_download
create_cmd_entrypoint = "${path.module}/scripts/kubectl_wrapper.sh"
create_cmd_body = "${local.cluster_endpoint} ${local.token} ${local.cluster_ca_certificate} kubectl apply -f ${local.manifest_path}"
destroy_cmd_entrypoint = "${path.module}/scripts/kubectl_wrapper.sh"
destroy_cmd_body = "${local.cluster_endpoint} ${local.token} ${local.cluster_ca_certificate} kubectl delete -f ${local.manifest_path}"
}
resource "tls_private_key" "k8sop_creds" {
count = var.create_ssh_key ? 1 : 0
algorithm = "RSA"
rsa_bits = 4096
}
module "k8sop_creds_secret" {
source = "terraform-google-modules/gcloud/google"
version = "~> 1.0"
module_depends_on = [module.k8s_operator.wait]
additional_components = ["kubectl"]
skip_download = var.skip_gcloud_download
create_cmd_entrypoint = "${path.module}/scripts/kubectl_wrapper.sh"
create_cmd_body = "${local.cluster_endpoint} ${local.token} ${local.cluster_ca_certificate} kubectl create secret generic ${var.operator_credential_name} -n=${var.operator_credential_namespace} --from-literal=${local.k8sop_creds_secret_key}='${local.private_key}'"
destroy_cmd_entrypoint = "${path.module}/scripts/kubectl_wrapper.sh"
destroy_cmd_body = "${local.cluster_endpoint} ${local.token} ${local.cluster_ca_certificate} kubectl delete secret ${var.operator_credential_name} -n=${var.operator_credential_namespace}"
}
data "template_file" "k8sop_config" {
template = file(var.operator_cr_template_path)
vars = {
cluster_name = var.cluster_name
sync_repo = var.sync_repo
sync_branch = var.sync_branch
policy_dir = var.policy_dir
secret_type = var.create_ssh_key ? "ssh" : var.secret_type
enable_policy_controller = var.enable_policy_controller ? "true" : "false"
install_template_library = var.install_template_library ? "true" : "false"
}
}
module "k8sop_config" {
source = "terraform-google-modules/gcloud/google"
version = "~> 1.0"
module_depends_on = [module.k8s_operator.wait, module.k8sop_creds_secret.wait]
additional_components = ["kubectl"]
skip_download = var.skip_gcloud_download
create_cmd_entrypoint = "echo"
create_cmd_body = "'${data.template_file.k8sop_config.rendered}' | ${path.module}/scripts/kubectl_wrapper.sh ${local.cluster_endpoint} ${local.token} ${local.cluster_ca_certificate} kubectl apply -f -"
destroy_cmd_entrypoint = "echo"
destroy_cmd_body = "'${data.template_file.k8sop_config.rendered}' | ${path.module}/scripts/kubectl_wrapper.sh ${local.cluster_endpoint} ${local.token} ${local.cluster_ca_certificate} kubectl delete -f -"
}