Fix #50: Add upstream server backup parameter to templates (#57)

Author: tux-o-matic

CHANGELOG.md

@@ -5,6 +5,7 @@
 ENHANCEMENTS:
 
 *   Add support for NGINX GRPC directives.
+*   Added support for upstream server `backup` parameter in http and stream template.
 *   Only run GitHub actions Galaxy CI/CD workflow when a new release is published.
 *   Update list of supported platforms.
 

molecule/default/converge.yml

@@ -289,6 +289,10 @@
                     address: 0.0.0.0
                     port: 8083
                     down: true
+                  backend_server_4:
+                    address: 0.0.0.0
+                    port: 8084
+                    backup: true
           frontend:
             template_file: http/default.conf.j2
             conf_file_name: frontend_default.conf
@@ -432,3 +436,7 @@
                     address: 0.0.0.0
                     port: 9092
                     down: true
+                  backend_server_3:
+                    address: 0.0.0.0
+                    port: 8083
+                    backup: true

molecule/plus/converge.yml

@@ -275,6 +275,10 @@
                     address: 0.0.0.0
                     port: 8083
                     down: true
+                  backend_server_4:
+                    address: 0.0.0.0
+                    port: 8084
+                    backup: true
           frontend:
             template_file: http/default.conf.j2
             conf_file_name: frontend_default.conf
@@ -418,3 +422,7 @@
                     address: 0.0.0.0
                     port: 9092
                     down: true
+                  backend_server_3:
+                    address: 0.0.0.0
+                    port: 8083
+                    backup: true

templates/http/default.conf.j2

@@ -10,7 +10,7 @@ upstream {{ item.value.upstreams[upstream].name }} {
     zone {{ item.value.upstreams[upstream].zone_name }} {{ item.value.upstreams[upstream].zone_size }};
 {% endif %}
 {% for server in item.value.upstreams[upstream].servers %}
-    server {{ item.value.upstreams[upstream].servers[server].address }}{{(":" + item.value.upstreams[upstream].servers[server].port | string) if item.value.upstreams[upstream].servers[server].port is defined}} {% if item.value.upstreams[upstream].servers[server].down is defined and item.value.upstreams[upstream].servers[server].down %}down{% else %}weight={{ item.value.upstreams[upstream].servers[server].weight | default("1") }} {{ item.value.upstreams[upstream].servers[server].health_check | default("") }}{% endif %};
+    server {{ item.value.upstreams[upstream].servers[server].address }}{{(":" + item.value.upstreams[upstream].servers[server].port | string) if item.value.upstreams[upstream].servers[server].port is defined}} {% if item.value.upstreams[upstream].servers[server].backup is defined and item.value.upstreams[upstream].servers[server].backup %}backup{% endif %} {% if item.value.upstreams[upstream].servers[server].down is defined and item.value.upstreams[upstream].servers[server].down %}down{% else %}weight={{ item.value.upstreams[upstream].servers[server].weight | default("1") }} {{ item.value.upstreams[upstream].servers[server].health_check | default("") }}{% endif %};
 {% endfor %}
 {% if item.value.upstreams[upstream].sticky_cookie is defined and item.value.upstreams[upstream].sticky_cookie %}
     sticky cookie srv_id expires=1h  path=/;

templates/stream/default.conf.j2

@@ -8,7 +8,7 @@ upstream {{ item.value.upstreams[upstream].name }} {
 {% endif %}
     zone {{ item.value.upstreams[upstream].zone_name }} {{ item.value.upstreams[upstream].zone_size }};
 {% for server in item.value.upstreams[upstream].servers %}
-    server {{ item.value.upstreams[upstream].servers[server].address }}{{(":" + item.value.upstreams[upstream].servers[server].port | string) if item.value.upstreams[upstream].servers[server].port is defined}} {% if item.value.upstreams[upstream].servers[server].down is defined and item.value.upstreams[upstream].servers[server].down %}down{% else %}weight={{ item.value.upstreams[upstream].servers[server].weight | default("1") }} {{ item.value.upstreams[upstream].servers[server].health_check | default("") }}{% endif %};
+    server {{ item.value.upstreams[upstream].servers[server].address }}{{(":" + item.value.upstreams[upstream].servers[server].port | string) if item.value.upstreams[upstream].servers[server].port is defined}} {% if item.value.upstreams[upstream].servers[server].backup is defined and item.value.upstreams[upstream].servers[server].backup %}backup{% endif %} {% if item.value.upstreams[upstream].servers[server].down is defined and item.value.upstreams[upstream].servers[server].down %}down{% else %}weight={{ item.value.upstreams[upstream].servers[server].weight | default("1") }} {{ item.value.upstreams[upstream].servers[server].health_check | default("") }}{% endif %};
 {% endfor %}
 {% if item.value.upstreams[upstream].sticky_cookie is defined %}
 {% if item.value.upstreams[upstream].sticky_cookie %}