Hi.
I try to use automatically the backend server when the primary serve is not
available.
The following snipplet is my solution with haproxy (2.1.3-3ppa1~bionic).
Is there a bette solution or is this a okay solution from HAProxy point of view?
```
backend be_static
log global
option httpchk GET {{ http_checks["static_http"]}} HTTP/1.1\r\nHost:\ {{
hosts["static_http"]}}
# check if the primary server is up
acl use_prim srv_is_up(static_prim)
http-request set-header Host {{ hosts["static_http"] }} if use_prim
http-request set-header Host {{ hosts["static_storage"] }} if ! use_prim
http-request set-path /v1/AUTH_OBJ-URL/Static%[path] if ! use_prim
server static_prim {{ hosts["static_http"] }}:443 resolvers mydns ssl check check-ssl check-sni
{{ hosts["static_http"] }} sni str({{ hosts["static_http"] }}) ca-file
/etc/haproxy/letsencryptauthorityx3.pem
server static_stor {{ hosts["static_storage"] }}:443 resolvers mydns ssl check check-ssl
check-sni {{ hosts["static_storage"] }} sni str({{ hosts["static_storage"] }}) ca-file
/etc/haproxy/Sectigo_RSA_Domain_Validation_Secure_Server_CA.pem backup
```
Best regards
Aleks
