add continuous deployment step

.drone.yml

@@ -16,6 +16,14 @@ steps:
     tags:
     - latest
     - main
+- name: continuous deployment
+  image: alpine:latest
+  commands:
+  - apk add -y openssh
+  - sh deploy.sh
+  environment:
+    SSH_KEY:
+      from_secret: SSH_KEY
 trigger:
   branch:
   - main

api/serve.go

@@ -66,11 +66,19 @@ func IdContinuation(context *RequestContext, req *http.Request, resp http.Respon
 	}
 }
 
+func CacheControlMiddleware(next http.Handler, maxAge int) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		header := fmt.Sprintf("public, max-age=%d", maxAge)
+		w.Header().Set("Cache-Control", header)
+		next.ServeHTTP(w, r)
+	})
+}
+
 func MakeServer(argv *args.Arguments, dbConn *sql.DB) *http.Server {
 	mux := http.NewServeMux()
 
 	fileServer := http.FileServer(http.Dir(argv.StaticPath))
-	mux.Handle("GET /static/", http.StripPrefix("/static/", fileServer))
+	mux.Handle("/static/", http.StripPrefix("/static/", CacheControlMiddleware(fileServer, 3600)))
 
 	makeRequestContext := func() *RequestContext {
 		return &RequestContext{

database/migrate.go

@@ -59,10 +59,17 @@ func MigrateDNSRecords(dbConn *sql.DB) (*sql.DB, error) {
 		ttl INTEGER NOT NULL,
                 internal BOOLEAN NOT NULL,
 		created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
-		FOREIGN KEY (user_id) REFERENCES users (id) ON DELETE CASCADE);`)
+		FOREIGN KEY (user_id) REFERENCES users (id) ON DELETE CASCADE
+        );`)
 	if err != nil {
 		return dbConn, err
 	}
+
+	_, err = dbConn.Exec(`CREATE UNIQUE INDEX IF NOT EXISTS idx_dns_records_name_content_type ON dns_records (name, type, content);`)
+	if err != nil {
+		return dbConn, err
+	}
+
 	return dbConn, nil
 }
 

deploy.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+set -e
+
+echo $SSH_KEY | base64 -d >> /tmp/key
+chmod -R 0600 /tmp/key
+
+ssh -i /tmp/key -o StrictHostKeyChecking=no root@hatecomputers.club "systemctl restart docker-compose@hatecomputers-club"
+
+rm /tmp/key