• Dridi Boukelmoune's avatar
    vtc: Add varnish macros for all listen addresses · c7ac5266
    Dridi Boukelmoune authored
    When a test case successfully runs this:
    
        varnish v1 -start
    
    The following macros are created:
    
    - ${v1_addr}
    - ${v1_port}
    - ${v1_sock}
    
    When v1 listens to a UNIX domain socket, those macros become useless and
    we generally have to repeat the socket path wherever we need it.
    
    From now on, varnish listen address macros for unix domain sockets match
    their server counterparts:
    
    - ${v1_addr} expands to "0.0.0.0"
    - ${v1_port} expands to "0"
    - ${v1_sock} expands to the socket path
    
    It is now possible to use the following construct regardless of the
    socket type:
    
        client c1 -connect "${v1_sock}"
    
    In addition, the debug.listen_address command now outputs the listen
    address name in addition to its endpoint. For example, in a test case
    with the following command:
    
        varnish v1 -arg "-a :0 -a :0 -b '${bad_backend}'" -start
    
    The output for debug.listen_address could look like this:
    
        a0 127.0.0.1 34567
        a0 ::1 34567
        a1 127.0.0.1 45678
        a1 ::1 45678
    
    The resulting macros would be:
    
    - ${v1_addr}
    - ${v1_port}
    - ${v1_sock}
    - ${v1_a0_addr}
    - ${v1_a0_port}
    - ${v1_a0_sock}
    - ${v1_a1_addr}
    - ${v1_a1_port}
    - ${v1_a1_sock}
    
    It becomes possible to reliably listen to multiple endpoints and use
    either in a test case. On a dual-stack system where we might end up
    with multiple endpoints sharing the same name, only the first one is
    used for a given name. In the example above all macros would expand
    to IPv4 addresses.
    c7ac5266
cache_acceptor.c 18.3 KB