Terraform files for dabit server

This is the terraform files used to deploy dabit-server on the self-hosted k8s. The API is available at api.dabit.alaanor.dev

Deployment

terraform -chdir=./src/ apply -var-file=../deployments/[insert environment].tfvars

Variables

Connect to k8s

There's 2 way to connect to kubernetes.

1. Using a kubeconfig file
2. Supplying credentials

In local for development purpose, you would typically use a kubemap. Set the config context through an environment variable TF_VAR_k8s_config_context and all should works just fine.

name	default
k8s_config_path	~/.kube/config
k8s_config_context	null
k8s_host	null
k8s_client_certificate	null
k8s_client_key	null
k8s_cluster_ca_certificate	null

Deployments options

name	description	default
host	hostname for the ingress	localhost
namespace	name of kubernetes namespace for all resources deployed	default
habit_api_replicas	number of replicas for Habit.API	1
identity_api_replicas	number of replicas for Identity.API	1

Resources

• Deployments
  • Habit.API
  • Habit.Worker
  • Identity.API
  • Traefik
• StatefulSets
  • Event Store
  • Mongo (habit)
  • Mongo (user)
• ConfigMap
• Secrets
• Ingress (traefik)

Rational

The reason there's 2 mongodb is because one is built from the event store (Habit.Worker's job, it's a read-only db). Thus mongo-db-habit isn't entirely a true stateful db since its state can be rebuilt from the event store. Which means that theorically we could destroy the db entirely and rebuild (could be how migrations are done in the future), for that reason I prefer separating them.