Pretix: add pretix job for dcu solar racing (#55)

Co-authored-by: wizzdom <wizzdom@redbrick.dcu.ie>
Co-authored-by: wizzdom <dom@wizzdom.xyz>

jobs/socs/dcusr-pretix.hcl

@@ -0,0 +1,137 @@
+job "dcusr-pretix" {
+  datacenters = ["aperture"]
+
+  type = "service"
+
+  meta {
+    domain = "tickets.solarracing.ie"
+  }
+
+  group "web" {
+    network {
+      # mode = "bridge"
+      port "http" {
+        to = 80
+      }
+
+      port "db" {
+        to = 5432
+      }
+
+      port "redis" {
+        to = 6379
+      }
+    }
+
+    service {
+      name = "pretix-web"
+      port = "http"
+
+      tags = [
+        "traefik.enable=true",
+        "traefik.port=${NOMAD_PORT_http}",
+        "traefik.http.routers.pretix.entrypoints=web,websecure",
+        "traefik.http.routers.pretix.rule=Host(`${NOMAD_META_domain}`)",
+        "traefik.http.routers.pretix.tls=true",
+        "traefik.http.routers.pretix.tls.certresolver=lets-encrypt",
+      ]
+    }
+
+    task "pretix" {
+      driver = "docker"
+
+      config {
+        image = "pretix/standalone:stable"
+        ports = ["http"]
+
+        volumes = [
+          "local/pretix.cfg:/etc/pretix/pretix.cfg",
+          "/storage/nomad/pretix/data:/data",
+          "/etc/timezone:/etc/timezone:ro",
+        ]
+
+      }
+
+      resources {
+        memory = 5000
+        cores  = 1
+      }
+      env {
+        NUM_WORKERS = 1
+      }
+
+      template {
+        data        = <<EOH
+[pretix]
+instance_name=DCU Solar Racing
+url=https://{{ env "NOMAD_META_domain" }}
+currency=EUR
+datadir=/data
+registration=off
+
+[locale]
+timezone=Europe/Dublin
+
+[database]
+backend=postgresql
+name={{ key "pretix/db/name" }}
+user={{ key "pretix/db/user" }}
+password={{ key "pretix/db/password" }}
+host={{ env "NOMAD_IP_db" }}
+port={{ env "NOMAD_HOST_PORT_db" }}
+
+[mail]
+from={{ key "pretix/mail/from" }}
+host={{ key "pretix/mail/host" }}
+user={{ key "pretix/mail/user" }}
+password={{ key "pretix/mail/password" }}
+port=587
+tls=on
+ssl=off
+
+[redis]
+location=redis://{{ env "NOMAD_ADDR_redis" }}/0
+sessions=true
+
+[celery]
+backend=redis://{{ env "NOMAD_ADDR_redis" }}/1
+broker=redis://{{ env "NOMAD_ADDR_redis" }}/2
+worker_prefetch_multiplier = 0
+EOH
+        destination = "local/pretix.cfg"
+      }
+    }
+
+
+    task "pretix-db" {
+      driver = "docker"
+
+      config {
+        image = "postgres:16-alpine"
+        ports = ["db"]
+
+        volumes = [
+          "/storage/nomad/pretix/db:/var/lib/postgresql/data",
+        ]
+      }
+
+      template {
+        data        = <<EOH
+POSTGRES_USER={{ key "pretix/db/user" }}
+POSTGRES_PASSWORD={{ key "pretix/db/password" }}
+EOH
+        destination = "local/db.env"
+        env         = true
+      }
+    }
+
+    task "redis" {
+      driver = "docker"
+
+      config {
+        image = "redis:latest"
+        ports = ["redis"]
+      }
+    }
+  }
+}