Digital Ocean setup + Docker optimization (arriven#142)

* Fix some misspells and misslinks

* Add DO docs

* Remove redundant layers

* Compact dockerfile

.gitignore

@@ -23,7 +23,6 @@ config.json
 
 # terraform
 **/.terraform*
-**/terraform.tfvars
 **/terraform.tfstate*
 
 .history

Dockerfile

@@ -12,13 +12,15 @@ FROM alpine:3.11.3 as openvpn
 RUN apk add --update supervisor openvpn curl && rm  -rf /tmp/* /var/cache/apk/*
 
 ADD supervisord/supervisord.conf /etc/
-ADD supervisord/supervisord-openvpn.conf /etc/supervisor/conf.d/
-ADD supervisord/supervisord-db1000n.conf /etc/supervisor/conf.d/
-ADD run/openvpn-up.sh run/run-openvpn.sh run/db1000n.sh /usr/local/bin/
-
-RUN chmod +x /usr/local/bin/openvpn-up.sh
-RUN chmod +x /usr/local/bin/run-openvpn.sh
-RUN chmod +x /usr/local/bin/db1000n.sh
+ADD supervisord/supervisord-openvpn.conf \
+    supervisord/supervisord-db1000n.conf /etc/supervisor/conf.d/
+ADD run/openvpn-up.sh \
+    run/run-openvpn.sh \
+    run/db1000n.sh /usr/local/bin/
+
+RUN chmod +x /usr/local/bin/openvpn-up.sh \
+    /usr/local/bin/run-openvpn.sh \
+    /usr/local/bin/db1000n.sh
 
 WORKDIR /usr/src/app
 COPY --from=builder /build/main .

terraform/digital_ocean/README.md

@@ -0,0 +1,29 @@
+# Digital Ocean deployment
+
+## Requirements
+
+- Digital Ocean account
+- API token (Go to API - Personal access tokens) and generate Personal access token (with write permissions)
+- `terraform` (1.0+) installed
+
+## Deploy
+
+To deploy run:
+
+```terraform
+export DO_TOKEN=<place-api-token-here>
+terraforim init
+terraform plan -var "do_token=${DO_TOKEN}"
+terraform apply -var "do_token=${DO_TOKEN}"
+```
+
+After deployment (usually takes 5-10 mins) go to [Apps List](https://cloud.digitalocean.com/apps), find an app with name `db1000n` and chek Runtime Logs.
+
+## Destroy
+
+To destroy infrastructure use commands:
+
+```terraform
+export DO_TOKEN=<place-api-token-here>
+terraform destroy -var "do_token=${DO_TOKEN}"
+```

terraform/digital_ocean/main.tf

@@ -0,0 +1,18 @@
+resource "digitalocean_app" "db1000n" {
+  spec {
+    name   = "db1000n"
+    region = var.region
+
+    worker {
+      name               = "db1000n-service"
+      environment_slug   = "go"
+      instance_count     = var.instance_count
+      instance_size_slug = var.instance_size_slug
+
+      git {
+        repo_clone_url = var.repo
+        branch         = "main"
+      }
+    }
+  }
+}

terraform/digital_ocean/provider.tf

@@ -0,0 +1,13 @@
+terraform {
+  required_providers {
+    digitalocean = {
+      source  = "digitalocean/digitalocean"
+      version = "~> 2.0"
+    }
+  }
+  required_version = "~> 1.0"
+}
+
+provider "digitalocean" {
+  token = var.do_token
+}

terraform/digital_ocean/terraform.tfvars

@@ -0,0 +1,3 @@
+instance_count     = 1
+instance_size_slug = "professional-xs"
+region             = "nyc"

terraform/digital_ocean/variables.tf

@@ -0,0 +1,25 @@
+variable "do_token" {
+  type = string
+}
+
+variable "repo" {
+  type    = string
+  default = "https://github.com/Arriven/db1000n"
+}
+
+variable "instance_count" {
+  type    = number
+  default = 1
+}
+
+# https://docs.digitalocean.com/reference/api/api-reference/#operation/list_instance_sizes
+variable "instance_size_slug" {
+  type    = string
+  default = "professional-xs"
+}
+
+# https://docs.digitalocean.com/reference/api/api-reference/#operation/list_all_regions
+variable "region" {
+  type    = string
+  default = "nyc1"
+}