diff --git a/README.md b/README.md index 198c2927233d914554f57971c9a0559c301424ae..f78516c95d7beb83d31f3a82619f5750926fd430 100644 --- a/README.md +++ b/README.md @@ -12,13 +12,18 @@ A very simple container to redirect HTTP traffic to another server, based on `ng - `SERVER_REDIRECT` - server to redirect to, eg. `www.example.com` - `SERVER_NAME` - optionally define the server name to listen on eg. `~^www.(?<subdomain>.+).example.com` - useful for capturing variable to use in server_redirect. + - useful for capturing variable to use in server_redirect. - `SERVER_REDIRECT_PATH` - optionally define path to redirect all requests eg. `/landingpage` - if not set nginx var `$request_uri` is used + - if not set nginx var `$request_uri` is used - `SERVER_REDIRECT_SCHEME` - optionally define scheme to redirect to - if not set nginx var `$scheme` is used -- `SERVER_REDIRECT_CODE` - optionally define the http code to use for redirection - if not set nginx 301 - is used + - if not set nginx var `$scheme` is used +- `SERVER_REDIRECT_CODE` - optionally define the http status code to use for redirection + - if not set or not in list of allowed codes 301 is used as default + - allowed Codes are: 301, 302, 303, 307, 308 + - `SERVER_REDIRECT_POST_CODE` - optionally define the http code to use for POST redirection + - useful if client should not change the request method from POST to GET + - if not set or not in allowed Codes `SERVER_REDIRECT_CODE` is used + - so per default all requests will be redirected with the same status code See also `docker-compose.yml` file. diff --git a/default.conf b/default.conf index 6e0b0d6e253fbef06c24d74ef4c453f79feaed70..a02eed79a99f92cb1c403d860a113f545ed70a8a 100644 --- a/default.conf +++ b/default.conf @@ -2,6 +2,11 @@ server { listen 80; server_name ${SERVER_NAME}; + # cherry picked from https://github.com/schmunk42/docker-nginx-redirect/pull/8 + if ($request_method = POST) { + return ${SERVER_REDIRECT_POST_CODE} ${SERVER_REDIRECT_SCHEME}://${SERVER_REDIRECT}${SERVER_REDIRECT_PATH}; + } + return ${SERVER_REDIRECT_CODE} ${SERVER_REDIRECT_SCHEME}://${SERVER_REDIRECT}${SERVER_REDIRECT_PATH}; # redirect server error pages to the static page /50x.html diff --git a/docker-compose.yml b/docker-compose.yml index 7f5304b2f73c3c307c1b625f22cfcf528e09ac67..15e2b1720cd089d564ff25e6334a2b32017ebc2c 100644 --- a/docker-compose.yml +++ b/docker-compose.yml @@ -10,3 +10,9 @@ to: # optionally define schema to redirect all requests # if not set nginx var $scheme is used #- SERVER_REDIRECT_SCHEME=https + # optionally define the http code to use for redirection + # allowed Codes are: 301, 302, 303, 307, 308, default is 301 + #- SERVER_REDIRECT_CODE=301 + # optionally define the http code to redirect POST requests + # if not set or not in allowed Codes, SERVER_REDIRECT_CODE will be used + #- SERVER_REDIRECT_POST_CODE= diff --git a/run.sh b/run.sh index d06824bda1ab9c46a5e45e041e814152ea5e95f2..6391a7bf51f3d678335d86c6cb0a8c1b3f42771d 100644 --- a/run.sh +++ b/run.sh @@ -11,9 +11,11 @@ if [ ! -n "$SERVER_NAME" ] ; then fi # set redirect code from optional ENV var -if [ "$SERVER_REDIRECT_CODE" != '302' ] ; then - SERVER_REDIRECT_CODE='301' -fi +# allowed Status Codes are: 301, 302, 303, 307, 308 +expr match "$SERVER_REDIRECT_CODE" '30[12378]$' > /dev/null || SERVER_REDIRECT_CODE='301' + +# set redirect code from optional ENV var for POST requests +expr match "$SERVER_REDIRECT_POST_CODE" '30[12378]$' > /dev/null || SERVER_REDIRECT_POST_CODE=$SERVER_REDIRECT_CODE # set redirect path from optional ENV var if [ ! -n "$SERVER_REDIRECT_PATH" ] ; then @@ -28,6 +30,7 @@ fi sed -i "s|\${SERVER_REDIRECT}|${SERVER_REDIRECT}|" /etc/nginx/conf.d/default.conf sed -i "s|\${SERVER_NAME}|${SERVER_NAME}|" /etc/nginx/conf.d/default.conf sed -i "s|\${SERVER_REDIRECT_CODE}|${SERVER_REDIRECT_CODE}|" /etc/nginx/conf.d/default.conf +sed -i "s|\${SERVER_REDIRECT_POST_CODE}|${SERVER_REDIRECT_POST_CODE}|" /etc/nginx/conf.d/default.conf sed -i "s|\${SERVER_REDIRECT_PATH}|${SERVER_REDIRECT_PATH}|" /etc/nginx/conf.d/default.conf sed -i "s|\${SERVER_REDIRECT_SCHEME}|${SERVER_REDIRECT_SCHEME}|" /etc/nginx/conf.d/default.conf