Add SSL to nginx if certs are given

docker-compose.jsonnet

@@ -56,6 +56,7 @@
     sheetsync: 8005,
     segment_coverage: 8006,
     nginx: 80,
+    nginx_ssl: 443,
     postgres: 5432,
   },
 
@@ -76,6 +77,8 @@
 
   nginx_serve_segments:: true, // set to false to not have nginx serve segments directly, letting restreamer do it instead.
 
+  ssl_certificate_path:: null, // set to path to SSL certs (cert chain + priv key in one file) to enable SSL
+
   // Connection args for the database.
   // If database is defined in this config, host and port should be postgres:5432.
   db_args:: {
@@ -318,7 +321,10 @@
       },
       image: "quay.io/ekimekim/wubloader-nginx:%s" % $.image_tag,
       restart: "on-failure",
-      [if "nginx" in $.ports then "ports"]: ["%s:80" % $.ports.nginx],
+      ports: std.prune([
+        if "nginx" in $.ports then "%s:80" % $.ports.nginx,
+        if "nginx_ssl" in $.ports then "%s:443" % $.ports.nginx_ssl,
+      ]),
       environment: $.env + {
         SERVICES: std.join("\n", [
           "%s %s" % [service, forward_ports[service]]
@@ -327,8 +333,12 @@
         ]),
         THRIMBLETRIMMER: if $.thrimbletrimmer then "true" else "",
         SEGMENTS: if $.nginx_serve_segments then "/mnt" else "",
+        SSL: if $.ssl_certificate_path != null then "/certs.pem" else "",
       },
-      volumes: if $.nginx_serve_segments then ["%s:/mnt" % $.segments_path] else [],
+      volumes: std.prune([
+        if $.nginx_serve_segments then "%s:/mnt" % $.segments_path,
+        if $.ssl_certificate_path != null then "%s:/certs.pem" % $.ssl_certificate_path,
+      ]),
     },
 
     [if $.enabled.postgres then "postgres"]: {

nginx/generate-config

@@ -6,6 +6,7 @@
 # Other vars:
 #  THRIMBLETRIMMER: Set non-empty to also serve thrimbletrimmer on /thrimbletrimmer
 #  SEGMENTS: Set to path to segments dir to also serve segments dir on /segments
+#  SSL: Set to path to file containing SSL cert and key, if any.
 
 generate_location() {
 	# generate_location PATH URL
@@ -29,8 +30,19 @@ LOCATIONS=$(
 		echo -e "\t\tlocation /segments/ { alias $SEGMENTS/; }"
 )
 
+[ -n "$SSL" ] && SSL_CONF=$(cat <<EOF
+	server {
+		listen 443 ssl;
+		ssl_certificate $SSL;
+		ssl_certificate_key $SSL;
+		ssl_session_cache shared:SSL:10m;
+$LOCATIONS
+	}
+EOF
+)
+
 cat > /etc/nginx/nginx.conf <<EOF
-worker_processes 1;
+worker_processes auto;
 
 events {
 	worker_connections 1024;
@@ -39,6 +51,7 @@ events {
 http {
 	include /etc/nginx/mime.types;
 	resolver 127.0.0.11 valid=10s;
+$SSL_CONF
 	server {
 		listen 80;
 		gzip on;