add image proxy (#102)

Author: wizzdom

jobs/services/imageproxy.hcl

@@ -0,0 +1,67 @@
+job "imageproxy" {
+  datacenters = ["aperture"]
+
+  type = "service"
+
+  group "web" {
+    network {
+      port "http" {
+        to = 8080
+      }
+      port "redis" {
+        to = 6379
+      }
+    }
+
+    service {
+      name = "imageproxy"
+      port = "http"
+
+      check {
+        type     = "http"
+        path     = "/"
+        interval = "10s"
+        timeout  = "2s"
+      }
+
+      tags = [
+        "traefik.enable=true",
+        "traefik.http.routers.imageproxy-api.rule=Host(`img.redbrick.dcu.ie`)",
+        "traefik.http.routers.imageproxy-api.tls=true",
+        "traefik.http.routers.imageproxy-api.tls.certresolver=lets-encrypt",
+      ]
+    }
+
+    task "imageproxy" {
+      driver = "docker"
+
+      config {
+        image = "ghcr.io/willnorris/imageproxy:latest"
+        ports = ["http"]
+      }
+      template {
+        data        = <<EOH
+IMAGEPROXY_BASEURL=https://img.redbrick.dcu.ie
+IMAGEPROXY_CACHE=redis://{{ env "NOMAD_ADDR_redis" }}
+IMAGEPROXY_REFERRERS=redbrick.dcu.ie,rb.dcu.ie,*.redbrick.dcu.ie,*.rb.dcu.ie
+# IMAGEPROXY_ALLOWHOSTS
+EOH
+        destination = "local/.env"
+        env         = true
+      }
+      resources {
+        cpu    = 500
+        memory = 1000
+      }
+    }
+    task "redis" {
+      driver = "docker"
+
+      config {
+        image = "redis:latest"
+        ports = ["redis"]
+      }
+    }
+  }
+}
+