Migrate Kubernetes v1.9.1 cluster/addons/registry to Kubespray

roles/kubernetes-apps/registry/files/images/rootfs/etc/nginx/conf.d/default.conf.in

@@ -0,0 +1,28 @@
+# Docker registry proxy for api version 2
+
+upstream docker-registry {
+    server %HOST%:%PORT%;
+}
+
+# No client auth or TLS
+# TODO(bacongobbler): experiment with authenticating the registry if it's using TLS
+server {
+    listen %BIND_PORT%;
+    server_name localhost;
+
+    # disable any limits to avoid HTTP 413 for large image uploads
+    client_max_body_size 0;
+
+    # required to avoid HTTP 411: see Issue #1486 (https://github.com/docker/docker/issues/1486)
+    chunked_transfer_encoding on;
+
+    location / {
+        # Do not allow connections from docker 1.5 and earlier
+        # docker pre-1.6.0 did not properly set the user agent on ping, catch "Go *" user agents
+        if ($http_user_agent ~ "^(docker\/1\.(3|4|5(?!\.[0-9]-dev))|Go ).*$" ) {
+            return 404;
+        }
+
+        include docker-registry.conf;
+    }
+}

roles/kubernetes-apps/registry/files/images/rootfs/etc/nginx/docker-registry.conf

@@ -0,0 +1,6 @@
+proxy_pass                          http://docker-registry;
+proxy_set_header  Host              $http_host;   # required for docker client's sake
+proxy_set_header  X-Real-IP         $remote_addr; # pass on real client's IP
+proxy_set_header  X-Forwarded-For   $proxy_add_x_forwarded_for;
+proxy_set_header  X-Forwarded-Proto $scheme;
+proxy_read_timeout                  900;

roles/kubernetes-apps/registry/files/images/rootfs/etc/nginx/nginx.conf

@@ -0,0 +1,26 @@
+user nginx;
+worker_processes auto;
+
+error_log   /var/log/nginx/error.log    warn;
+pid         /var/run/nginx.pid;
+
+events {
+    worker_connections  1024;
+}
+
+http {
+    include      /etc/nginx/mime.types;
+    default_type application/octet-stream;
+
+    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
+                      '$status $body_bytes_sent "$http_referer" '
+                      '"$http_user_agent" "$http_x_forwarded_for"';
+
+    access_log  /var/log/nginx/access.log main;
+
+    sendfile on;
+
+    keepalive_timeout 65;
+
+    include /etc/nginx/conf.d/*.conf;
+}