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Shtoltc Eugeny

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To https://source.developers.google.com/p/node-cluster-243923/r/nodejs

* [new tag] latest -> latest

essh @ kubernetes-master: ~ / node-cluster / app / nodejs $ cd ../ ..

Creating multiple environments with Terraform clusters

When trying to create several clusters from the same configuration, we will encounter duplicate identifiers that must be unique, so we isolate them from each other by creating and placing them in different projects. To manually create a project, go to GCP -> Products -> IAM and administration -> Resource management and create a NodeJS-prod project and switch to the project, wait for its activation. Let's look at the state of the current project:

essh @ kubernetes-master: ~ / node-cluster $ cat main.tf

provider "google" {

credentials = file ("./ kubernetes_key.json")

project = "node-cluster-243923"

region = "europe-west2"

}

module "kubernetes" {

source = "./Kubernetes"

}

data "google_client_config" "default" {}

module "Nginx" {

source = "./nodejs"

image = "gcr.io/node-cluster-243923/nodejs_cluster:latest"

endpoint = module.kubernetes.endpoint

access_token = data.google_client_config.default.access_token

cluster_ca_certificate = module.kubernetes.cluster_ca_certificate

}

essh @ kubernetes-master: ~ / node-cluster $ gcloud config list project

[core]

project = node-cluster-243923

Your active configuration is: [default]

essh @ kubernetes-master: ~ / node-cluster $ gcloud config set project node-cluster-243923

Updated property [core / project].

essh @ kubernetes-master: ~ / node-cluster $ gcloud compute instances list

NAME ZONE INTERNAL_IP EXTERNAL_IP STATUS

gke-node-ks-default-pool-2e5073d4-csmg europe-north1-a 10.166.0.2 35.228.96.97 RUNNING

gke-node-ks-node-ks-pool-ccbaf5c6-4xgc europe-north1-a 10.166.15.233 35.228.82.222 RUNNING

gke-node-ks-default-pool-72a6d4a3-ldzg europe-north1-b 10.166.15.231 35.228.143.7 RUNNING

gke-node-ks-node-ks-pool-9ee6a401-ngfn europe-north1-b 10.166.15.234 35.228.129.224 RUNNING

gke-node-ks-default-pool-d370036c-kbg6 europe-north1-c 10.166.15.232 35.228.117.98 RUNNING

gke-node-ks-node-ks-pool-d7b09e63-q8r2 europe-north1-c 10.166.15.235 35.228.85.157 RUNNING

Switch gcloud and look at an empty project:

essh @ kubernetes-master: ~ / node-cluster $ gcloud config set project node-cluster-prod-244519

Updated property [core / project].

essh @ kubernetes-master: ~ / node-cluster $ gcloud config list project

[core]

project = node-cluster-prod-244519

Your active configuration is: [default]

essh @ kubernetes-master: ~ / node-cluster $ gcloud compute instances list

Listed 0 items.

The previous time, for node-cluster-243923, we created a service account, on behalf of which we created a cluster. To work with multiple Terraform accounts, we will create a service account for the new project through IAM and Administration -> Service Accounts. We will need to make two separate folders to run Terraform separately in order to separate SSH connections that have different authorization keys. If we put both providers with different keys, we will get a successful connection for the first project, later when Terraform proceeds to create a cluster for the next project, it will be rejected due to the invalid key from the first project to the second. There is another possibility – to activate the account as a company account (you need a website and email, and check them by Google), then it will be possible to create projects from the code without using the admin panel. After dev environment:

essh @ kubernetes-master: ~ / node-cluster $ ./terraform destroy

essh @ kubernetes-master: ~ / node-cluster $ mkdir dev

essh @ kubernetes-master: ~ / node-cluster $ cd dev /

essh @ kubernetes-master: ~ / node-cluster / dev $ gcloud config set project node-cluster-243923

Updated property [core / project].

essh @ kubernetes-master: ~ / node-cluster / dev $ gcloud config list project

[core]

project = node-cluster-243923

Your active configuration is: [default]

essh @ kubernetes-master: ~ / node-cluster / dev $ ../kubernetes_key.json ../main.tf.

essh @ kubernetes-master: ~ / node-cluster / dev $ cat main.tf

provider "google" {