New deployment setup (2)

Author: mejedi

.github/workflows/build-and-trigger-deploy.yml

@@ -36,7 +36,7 @@ jobs:
     - uses: actions/download-artifact@v1.0.0
       with: { name: version }
     - name: Build cloud images
-      run: packer build -var "version=$(cat version/version)" -var "digitalocean_token=${{ secrets.DIGITALOCEAN_TOKEN }}" deploy/cloud-images.json
+      run: packer build -var "version=$(cat version/version)" -var "digitalocean_token=${{ secrets.DIGITALOCEAN_TOKEN }}" deployments/cloud-images.json
 
   docker-image-amd64:
     runs-on: ubuntu-latest

deploy/cloud-images.json renamed to deployments/cloud-images.json

@@ -10,7 +10,8 @@ upstream web.luajit.me {
 
 upstream compute.luajit.me {
   least_conn;
-  # <COMPUTE_IPV4_ADDRESS>
+  # <COMPUTE_AMD64_IPV4_ADDRESS>
+  server 127.0.0.1 down; # workaround for "no servers configured"
 }
 
 proxy_cache_path /data/nginx/cache levels=1 keys_zone=luajit.me:1m;

deploy/modules/backend/app.nginx.conf renamed to deployments/modules/backend/app.nginx.conf

@@ -34,7 +34,6 @@ resource "digitalocean_droplet" "web" {
       "mkdir -p /data/nginx/cache",
       "chown www-data: /data/nginx/cache",
       "sed '-es/<SELF_IPV4_ADDRESS>/${self.ipv4_address_private}/' /root/app.nginx.conf > /etc/nginx/sites-available/luajit.me",
-      "for IPV4_ADDRESS in ${join(" ", values(digitalocean_droplet.compute_amd64).*.ipv4_address_private)}; do sed -i /etc/nginx/sites-available/luajit.me -e \"/COMPUTE_IPV4_ADDRESS/a\\ \\ server $${IPV4_ADDRESS}:80;\"; done",
       "ln -s /etc/nginx/sites-available/luajit.me /etc/nginx/sites-enabled/luajit.me",
       "rm /etc/nginx/sites-enabled/default",
       "systemctl enable nginx",
@@ -71,7 +70,7 @@ resource "digitalocean_droplet" "compute_amd64" {
   }
 }
 
-resource "null_resource" "update_compute_cluster_user" {
+resource "null_resource" "configure_compute_cluster_user" {
   count = length(digitalocean_droplet.web)
   triggers = {
     compute_cluster_amd64_ips = join(" ", values(digitalocean_droplet.compute_amd64).*.ipv4_address_private)
@@ -84,9 +83,14 @@ resource "null_resource" "update_compute_cluster_user" {
   }
   provisioner "remote-exec" {
     inline = [
-      "sed -e '/COMPUTE_IPV4_ADDRESS/,/}/{/server/d}' -i /etc/nginx/sites-available/luajit.me",
-      "for IPV4_ADDRESS in ${join(" ", values(digitalocean_droplet.compute_amd64).*.ipv4_address_private)}; do sed -i /etc/nginx/sites-available/luajit.me -e \"/COMPUTE_IPV4_ADDRESS/a\\ \\ server $${IPV4_ADDRESS}:80;\"; done",
-      "service nginx reload"
+      <<EOT
+(echo '/COMPUTE_AMD64_IPV4_ADDRESS/,/}/{/server/d};/COMPUTE_AMD64_IPV4_ADDRESS/{';
+%{ for ip in values(digitalocean_droplet.compute_amd64).*.ipv4_address_private }
+echo 'a\ \ server ${ip}:80;';
+%{ endfor }
+echo '}' ) | sed -f /dev/stdin -i /etc/nginx/sites-available/luajit.me
+EOT
+      , "service nginx reload"
     ]
   }
 }