Merge pull request #16 from flownative/custom-resolver

BEACH_ASSET_PROXY_RESOLVER

Author: robertlemke

README.md

@@ -70,6 +70,7 @@ for possible values. The default value is `warn`.
 | BEACH_NGINX_CUSTOM_METRICS_TARGET_PORT   | integer | 8082                                  | Port at which Nginx should listen to provide the metrics for scraping                                                                                                                                             |
 | BEACH_NGINX_MODE                         | string  | Flow                                  | Either "Flow" or "Static"; this variable is going to be renamed in the future                                                                                                                                     |
 | BEACH_ASSET_PROXY_ENDPOINT               | string  |                                       | Endpoint of a cloud storage frontend to use for proxying requests to Flow persistent resources. Requires BEACH_PERSISTENT_RESOURCES_BASE_PATH to be set. Example: "https://assets.flownative.com/example-bucket/" |
+| BEACH_ASSET_PROXY_RESOLVER               | string  | 8.8.8.8                               | IP address of a DNS server to use for resolving domains when proxying assets. Set this to 127.0.0.11 when using Local Beach.                                                                                      |
 | BEACH_PERSISTENT_RESOURCES_BASE_PATH     | string  |                                       | Base path of URLs pointing to Flow persistent resources; example: "https://www.flownative.com/assets/"                                                                                                            |
 | BEACH_STATIC_RESOURCES_LIFETIME          | string  | 30d                                   | Expiration time for static resources; examples: "3600s" or "7d" or "max"                                                                                                                                          |
 | FLOW_HTTP_TRUSTED_PROXIES                | string  | 10.0.0.0/8                            | Nginx passes FLOW_HTTP_TRUSTED_PROXIES to the virtual host using the value of this variable                                                                                                                       |

root-files/opt/flownative/lib/nginx-legacy.sh

@@ -47,6 +47,7 @@ fi
 export BEACH_PERSISTENT_RESOURCES_FALLBACK_BASE_URI=${BEACH_PERSISTENT_RESOURCES_FALLBACK_BASE_URI:-}
 export BEACH_PERSISTENT_RESOURCES_BASE_PATH=${BEACH_PERSISTENT_RESOURCES_BASE_PATH:-/_Resources/Persistent/}
 export BEACH_ASSET_PROXY_ENDPOINT=${BEACH_ASSET_PROXY_ENDPOINT:-}
+export BEACH_ASSET_PROXY_RESOLVER=${BEACH_ASSET_PROXY_RESOLVER:-8.8.8.8}
 export BEACH_PHP_FPM_HOST=${BEACH_PHP_FPM_HOST:-localhost}
 export BEACH_PHP_FPM_PORT=${BEACH_PHP_FPM_PORT:-9000}
 export BEACH_NGINX_MODE=${BEACH_NGINX_MODE:-Flow}
@@ -190,7 +191,7 @@ EOM
     }
     # pass persistent resource requests to the custom endpoint (S3, Minio, GCS ...)
     location ~* "^${BEACH_PERSISTENT_RESOURCES_BASE_PATH}([a-f0-9]{40})/" {
-        resolver 8.8.8.8;
+        resolver ${BEACH_ASSET_PROXY_RESOLVER};
         proxy_set_header Authorization "";
         add_header Via 'Beach Asset Proxy';
         ${addHeaderStrictTransportSecurity}
@@ -207,7 +208,7 @@ EOM
     }
     # pass persistent resource requests to GCS
     location ~* "^${BEACH_PERSISTENT_RESOURCES_BASE_PATH}([a-f0-9]{40})/" {
-        resolver 8.8.8.8;
+        resolver ${BEACH_ASSET_PROXY_RESOLVER};
         proxy_set_header Authorization "";
         add_header Via 'Beach Asset Proxy';
         ${addHeaderStrictTransportSecurity}
@@ -229,7 +230,7 @@ EOM
         set \$assetUri ${BEACH_PERSISTENT_RESOURCES_FALLBACK_BASE_URI}\$1;
         add_header Via 'Beach Asset Fallback';
         ${addHeaderStrictTransportSecurity}
-        resolver 8.8.8.8;
+        resolver ${BEACH_ASSET_PROXY_RESOLVER};
         proxy_pass \$assetUri;
     }
 EOM