Fix broken k8s installs

Related: https://github.com/ansible/awx/issues/5205

The following commit introduced this bug:
712b07c136 (diff-a2ef2d6347894a92a6b882e3793fb06c)

installer/roles/kubernetes/templates/configmap.yml.j2

@@ -4,6 +4,126 @@ metadata:
   name: {{ kubernetes_deployment_name }}-config
   namespace: {{ kubernetes_namespace }}
 data:
+  {{ kubernetes_deployment_name }}_nginx_conf: |
+    #user awx;
+
+    worker_processes  1;
+
+    pid        /tmp/nginx.pid;
+
+    events {
+        worker_connections  1024;
+    }
+
+    http {
+        include       /etc/nginx/mime.types;
+        default_type  application/octet-stream;
+        server_tokens off;
+
+        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 /dev/stdout main;
+
+        map $http_upgrade $connection_upgrade {
+            default upgrade;
+            ''      close;
+        }
+
+        sendfile        on;
+        #tcp_nopush     on;
+        #gzip  on;
+
+        upstream uwsgi {
+            server 127.0.0.1:8050;
+            }
+
+        upstream daphne {
+            server 127.0.0.1:8051;
+        }
+
+        {% if ssl_certificate is defined %}
+        server {
+            listen 8052 default_server;
+            server_name _;
+
+            # Redirect all HTTP links to the matching HTTPS page
+            return 301 https://$host$request_uri;
+        }
+        {%endif %}
+
+        server {
+            {% if ssl_certificate is defined %}
+            listen 8053 ssl;
+
+            ssl_certificate /etc/nginx/awxweb.pem;
+            ssl_certificate_key /etc/nginx/awxweb.pem;
+            {% else %}
+            listen 8052 default_server;
+            {% endif %}
+
+            # If you have a domain name, this is where to add it
+            server_name _;
+            keepalive_timeout 65;
+
+            # HSTS (ngx_http_headers_module is required) (15768000 seconds = 6 months)
+            add_header Strict-Transport-Security max-age=15768000;
+            add_header Content-Security-Policy "default-src 'self'; connect-src 'self' ws: wss:; style-src 'self' 'unsafe-inline'; script-src 'self' 'unsafe-inline' *.pendo.io; img-src 'self' *.pendo.io data:; report-uri /csp-violation/";
+            add_header X-Content-Security-Policy "default-src 'self'; connect-src 'self' ws: wss:; style-src 'self' 'unsafe-inline'; script-src 'self' 'unsafe-inline' *.pendo.io; img-src 'self' *.pendo.io data:; report-uri /csp-violation/";
+
+            # Protect against click-jacking https://www.owasp.org/index.php/Testing_for_Clickjacking_(OTG-CLIENT-009)
+            add_header X-Frame-Options "DENY";
+
+            location /nginx_status {
+              stub_status on;
+              access_log off;
+              allow 127.0.0.1;
+              deny all;
+            }
+
+            location /static/ {
+                alias /var/lib/awx/public/static/;
+            }
+
+            location /favicon.ico { alias /var/lib/awx/public/static/favicon.ico; }
+
+            location /websocket {
+                # Pass request to the upstream alias
+                proxy_pass http://daphne;
+                # Require http version 1.1 to allow for upgrade requests
+                proxy_http_version 1.1;
+                # We want proxy_buffering off for proxying to websockets.
+                proxy_buffering off;
+                # http://en.wikipedia.org/wiki/X-Forwarded-For
+                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+                # enable this if you use HTTPS:
+                proxy_set_header X-Forwarded-Proto https;
+                # pass the Host: header from the client for the sake of redirects
+                proxy_set_header Host $http_host;
+                # We've set the Host header, so we don't need Nginx to muddle
+                # about with redirects
+                proxy_redirect off;
+                # Depending on the request value, set the Upgrade and
+                # connection headers
+                proxy_set_header Upgrade $http_upgrade;
+                proxy_set_header Connection $connection_upgrade;
+            }
+
+            location / {
+                # Add trailing / if missing
+                rewrite ^(.*)$http_host(.*[^/])$ $1$http_host$2/ permanent;
+                uwsgi_read_timeout 120s;
+                uwsgi_pass uwsgi;
+                include /etc/nginx/uwsgi_params;
+                {%- if extra_nginx_include is defined %}
+                include {{ extra_nginx_include }};
+                {%- endif %}
+                proxy_set_header X-Forwarded-Port 443;
+            }
+        }
+    }
+
   {{ kubernetes_deployment_name }}_settings: |
     import os
     import socket

installer/roles/kubernetes/templates/deployment.yml.j2

@@ -203,6 +203,11 @@ spec:
               subPath: settings.py
               readOnly: true
 
+            - name: {{ kubernetes_deployment_name }}-nginx-config
+              mountPath: /etc/nginx/nginx.conf
+              subPath: nginx.conf
+              readOnly: true
+
             - name: "{{ kubernetes_deployment_name }}-application-credentials"
               mountPath: "/etc/tower/conf.d/"
               readOnly: true
@@ -390,6 +395,13 @@ spec:
               - key: {{ kubernetes_deployment_name }}_settings
                 path: settings.py
 
+        - name: {{ kubernetes_deployment_name }}-nginx-config
+          configMap:
+            name: {{ kubernetes_deployment_name }}-config
+            items:
+              - key: {{ kubernetes_deployment_name }}_nginx_conf
+                path: nginx.conf
+
         - name: "{{ kubernetes_deployment_name }}-application-credentials"
           secret:
             secretName: "{{ kubernetes_deployment_name }}-secrets"