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Diffstat (limited to 'docs')
| -rw-r--r-- | docs/configuration/loadbalancing/reverse-proxy.rst | 124 |
1 files changed, 113 insertions, 11 deletions
diff --git a/docs/configuration/loadbalancing/reverse-proxy.rst b/docs/configuration/loadbalancing/reverse-proxy.rst index 7a9f90ae..044d2044 100644 --- a/docs/configuration/loadbalancing/reverse-proxy.rst +++ b/docs/configuration/loadbalancing/reverse-proxy.rst @@ -43,7 +43,12 @@ Service .. cfgcmd:: set load-balancing reverse-proxy service <name> ssl certificate <name> - Set SSL certeficate <name> for service <name> + Set SSL certificate <name> for service <name> + +.. cfgcmd:: set load-balancing reverse-proxy service <name> + http-response-headers <header-name> value <header-value> + + Set custom HTTP headers to be included in all responses Rules @@ -97,15 +102,15 @@ Backend .. cfgcmd:: set load-balancing reverse-proxy backend <name> balance <balance> - Load-balancing algorithms to be used for distributind requests among the - vailable servers + Load-balancing algorithms to be used for distributed requests among the + available servers Balance algorithms: * ``source-address`` Distributes requests based on the source IP address of the client * ``round-robin`` Distributes requests in a circular manner, sequentially sending each request to the next server in line - * ``least-connection`` Distributes requests tp tje server wotj the fewest + * ``least-connection`` Distributes requests to the server with the fewest active connections .. cfgcmd:: set load-balancing reverse-proxy backend <name> mode @@ -144,18 +149,54 @@ Backend Send a Proxy Protocol version 2 header (binary format) +.. cfgcmd:: set load-balancing reverse-proxy backend <name> ssl + ca-certificate <ca-certificate> + Configure requests to the backend server to use SSL encryption and + authenticate backend against <ca-certificate> -<<<<<<< HEAD -Gloabal -======= .. cfgcmd:: set load-balancing reverse-proxy backend <name> ssl no-verify Configure requests to the backend server to use SSL encryption without validating server certificate +.. cfgcmd:: set load-balancing reverse-proxy backend <name> + http-response-headers <header-name> value <header-value> + + Set custom HTTP headers to be included in all responses using the backend + + +HTTP health check +^^^^^^^^^^^^^^^^^ +For web application providing information about their state HTTP health +checks can be used to determine their availability. + +.. cfgcmd:: set load-balancing reverse-proxy backend <name> http-check + + Enables HTTP health checks using OPTION HTTP requests against '/' and + expecting a successful response code in the 200-399 range. + +.. cfgcmd:: set load-balancing reverse-proxy backend <name> http-check + method <method> + + Sets the HTTP method to be used, can be either: option, get, post, put + +.. cfgcmd:: set load-balancing reverse-proxy backend <name> http-check + uri <path> + + Sets the endpoint to be used for health checks + +.. cfgcmd:: set load-balancing reverse-proxy backend <name> http-check + expect <condition> + + Sets the expected result condition for considering a server healthy. + Some possible examples are: + * ``status 200`` Expecting a 200 response code + * ``status 200-399`` Expecting a non-failure response code + * ``string success`` Expecting the string `success` in the response body + + Global ->>>>>>> 6703aeb4 (T6242: reverse-proxy: Document new backend option ssl no-verify) ------- Global parameters @@ -216,6 +257,7 @@ servers (srv01 and srv02) using the round-robin load-balancing algorithm. set load-balancing reverse-proxy backend bk-01 server srv02 address '192.0.2.12' set load-balancing reverse-proxy backend bk-01 server srv02 port '8882' + Balancing based on domain name ------------------------------ The following configuration demonstrates how to use VyOS @@ -252,13 +294,14 @@ to the backend ``bk-api-02`` Terminate SSL ------------- -The following configuration reverse-proxy terminate SSL. +The following configuration terminates SSL on the router. -The ``http`` service is lestens on port 80 and force redirects from HTTP to +The ``http`` service is listens on port 80 and force redirects from HTTP to HTTPS. -The ``https`` service listens on port 443 with backend `bk-default` to +The ``https`` service listens on port 443 with backend ``bk-default`` to handle HTTPS traffic. It uses certificate named ``cert`` for SSL termination. +HSTS header is set with a 1-year expiry, to tell browsers to always use SSL for site. Rule 10 matches requests with the exact URL path ``/.well-known/xxx`` and redirects to location ``/certs/``. @@ -281,6 +324,7 @@ connection limit of 4000 and a minimum TLS version of 1.3. set load-balancing reverse-proxy service https mode 'http' set load-balancing reverse-proxy service https port '443' set load-balancing reverse-proxy service https ssl certificate 'cert' + set load-balancing reverse-proxy service https http-response-headers Strict-Transport-Security value 'max-age=31536000' set load-balancing reverse-proxy service https rule 10 url-path exact '/.well-known/xxx' set load-balancing reverse-proxy service https rule 10 set redirect-location '/certs/' @@ -296,3 +340,61 @@ connection limit of 4000 and a minimum TLS version of 1.3. set load-balancing reverse-proxy global-parameters max-connections '4000' set load-balancing reverse-proxy global-parameters tls-version-min '1.3' + +SSL Bridging +------------- +The following configuration terminates incoming HTTPS traffic on the router, +then re-encrypts the traffic and sends to the backend server via HTTPS. +This is useful if encryption is required for both legs, but you do not want to +install publicly trusted certificates on each backend server. + +Backend service certificates are checked against the certificate authority +specified in the configuration, which could be an internal CA. + +The ``https`` service listens on port 443 with backend ``bk-bridge-ssl`` to +handle HTTPS traffic. It uses certificate named ``cert`` for SSL termination. + +The ``bk-bridge-ssl`` backend connects to sr01 server on port 443 via HTTPS +and checks backend server has a valid certificate trusted by CA ``cacert`` + + +.. code-block:: none + + set load-balancing reverse-proxy service https backend 'bk-bridge-ssl' + set load-balancing reverse-proxy service https description 'listen on 443 port' + set load-balancing reverse-proxy service https mode 'http' + set load-balancing reverse-proxy service https port '443' + set load-balancing reverse-proxy service https ssl certificate 'cert' + + set load-balancing reverse-proxy backend bk-bridge-ssl description 'SSL backend' + set load-balancing reverse-proxy backend bk-bridge-ssl mode 'http' + set load-balancing reverse-proxy backend bk-bridge-ssl ssl ca-certificate 'cacert' + set load-balancing reverse-proxy backend bk-bridge-ssl server sr01 address '192.0.2.23' + set load-balancing reverse-proxy backend bk-bridge-ssl server sr01 port '443' + + +Balancing with HTTP health checks +--------------------------------- + +This configuration enables HTTP health checks on backend servers. + +.. code-block:: none + + set load-balancing reverse-proxy service my-tcp-api backend 'bk-01' + set load-balancing reverse-proxy service my-tcp-api mode 'tcp' + set load-balancing reverse-proxy service my-tcp-api port '8888' + + set load-balancing reverse-proxy backend bk-01 balance 'round-robin' + set load-balancing reverse-proxy backend bk-01 mode 'tcp' + + set load-balancing reverse-proxy backend bk-01 http-check method 'get' + set load-balancing reverse-proxy backend bk-01 http-check uri '/health' + set load-balancing reverse-proxy backend bk-01 http-check expect 'status 200' + + set load-balancing reverse-proxy backend bk-01 server srv01 address '192.0.2.11' + set load-balancing reverse-proxy backend bk-01 server srv01 port '8881' + set load-balancing reverse-proxy backend bk-01 server srv01 check + set load-balancing reverse-proxy backend bk-01 server srv02 address '192.0.2.12' + set load-balancing reverse-proxy backend bk-01 server srv02 port '8882' + set load-balancing reverse-proxy backend bk-01 server srv02 check + |