Create cipher_server.conf

config/root/etc/nginx/cipher_server.conf

@@ -0,0 +1,81 @@
+lua_shared_dict cipher_server 1m;
+upstream cipher_server {
+    server 127.0.0.1:8011 max_fails=0;
+
+    balancer_by_lua_block {
+        local balancer = require "ngx.balancer"
+        local upstream = ngx.shared.cipher_server
+        local exit_error = ngx.HTTP_INTERNAL_SERVER_ERROR
+
+        local ok, err, empty_port, host, port
+        local default_host, default_port, tries = '127.0.0.1', '8011', 1
+
+        local user_host = os.getenv('TUBESYNC_CIPHER_IPADDR')
+        local link_host = os.getenv('CIPHERSERVER_PORT_8001_TCP_ADDR')
+        local use_https = os.getenv('TUBESYNC_CIPHER_HTTPS')
+        if user_host and use_https then
+            use_https = true
+            empty_port = '443'
+        else
+            use_https = false
+            empty_port = '80'
+        end
+
+        ok, err = balancer.get_last_failure()
+        if ok then
+            host, port, tries = default_host, default_port, 0
+        elseif link_host then
+            host = link_host
+            local link_port = os.getenv('CIPHERSERVER_PORT_8001_TCP_PORT')
+            if link_port then
+                port = link_port
+            else
+                port = empty_port
+            end
+        elseif user_host then
+            host = user_host
+            local user_port = os.getenv('TUBESYNC_CIPHER_PORT')
+            if user_port then
+                port = user_port
+            else
+                port = empty_port
+            end
+            ok, err = balancer.set_upstream_tls(use_https)
+            if not ok then
+                ngx.log(ngx.ERR, "failed to set upstream TLS: ", err)
+            end
+        end
+        if not host then
+            host, port, tries = default_host, default_port, 0
+        end
+
+        ok, err = balancer.set_more_tries(tries)
+        if not ok then
+            ngx.log(ngx.err, ("failed to set tries to %d: "):format(tries), err)
+        end
+
+        ok, err = balancer.set_current_peer(host, port)
+        if ok then
+            upstream:set('https', use_https)
+            upstream:set('addr', host)
+            upstream:set('port', port)
+        else
+            ngx.log(ngx.err, "failed to set the current peer: ", err)
+            return ngx.exit(exit_error)
+        end
+    }
+}
+
+server {
+
+    # Ports
+    listen 8001;
+    listen [::]:8001;
+
+    # Server domain name
+    server_name _;
+
+    location / {
+        proxy_pass http://cipher_server;
+    }
+}