haproxy/reg-tests/checks/4be_1srv_smtpchk_httpchk_layer47errors.vtc
wrightlaw 9a8d8a3fd0 BUG/MINOR: smtpchk: SMTP Service check should gracefully close SMTP transaction
At present option smtpchk closes the TCP connection abruptly on completion of service checking,
even if successful. This can result in a very high volume of errors in backend SMTP server logs.
This patch ensures an SMTP QUIT is sent and a positive 2xx response is received from the SMTP
server prior to disconnection.

This patch depends on the following one:

 * MINOR: smtpchk: Update expect rule to fully match replies to EHLO commands

This patch should fix the issue #1812. It may be backported as far as 2.2
with the commit above On the 2.2, proxy_parse_smtpchk_opt() function is
located in src/check.c

[cf: I updated reg-tests script accordingly]
2022-09-21 16:01:42 +02:00

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varnishtest "Check: smptchk option"
feature ignore_unknown_macro
#EXCLUDE_TARGETS=freebsd,osx,generic
#REGTEST_TYPE=slow
barrier b cond 3
syslog S1 -level notice {
recv
expect ~ "[^:\\[ ]\\[${h1_pid}\\]: Health check for server be1/srv1 succeeded.+reason: Layer7 check passed.+code: 221.+check duration: [[:digit:]]+ms.+status: 1/1 UP."
barrier b sync
recv
expect ~ "Health check for server be1/srv1 failed.+reason: Layer7 timeout.+check duration: [[:digit:]]+ms.+status: 0/1 DOWN"
} -start
syslog S2 -level notice {
recv
expect ~ "[^:\\[ ]\\[${h1_pid}\\]: Health check for server be2/srv2 succeeded.+reason: Layer7 check passed.+code: 200.+.+check duration: [[:digit:]]+ms.+status: 1/1 UP."
barrier b sync
recv
expect ~ "[^:\\[ ]\\[${h1_pid}\\]: Health check for server be2/srv2 failed.+reason: Layer7 timeout.+check duration: [[:digit:]]+ms.+status: 0/1 DOWN"
} -start
syslog S3 -level notice {
recv
expect ~ "[^:\\[ ]\\[${h1_pid}\\]: Health check for server be3/srv3 failed.+reason: Layer4 connection problem.+info: \"General socket error \\(Network is unreachable\\)\".+check duration: [[:digit:]]+ms.+status: 0/1 DOWN."
} -start
syslog S4 -level notice {
recv
expect ~ "[^:\\[ ]\\[${h1_pid}\\]: Health check for server be4/srv4 failed.+reason: Layer4 connection problem.+info: \"Connection refused\".+check duration: [[:digit:]]+ms.+status: 0/1 DOWN."
} -start
server s1 {
send "2"
send "2"
send "0"
send "\r\n"
recv 16
send "2"
send "4"
send "8"
send "\r\n"
recv 6
send "2"
send "2"
send "1"
send " ok\r\n"
} -start
server s2 {
rxreq
txresp
} -start
haproxy h1 -conf {
defaults
timeout client "${HAPROXY_TEST_TIMEOUT-5s}"
timeout server "${HAPROXY_TEST_TIMEOUT-5s}"
timeout connect "${HAPROXY_TEST_TIMEOUT-5s}"
option log-health-checks
default-server inter 200ms downinter 100ms rise 1 fall 1
backend be1
option smtpchk
log ${S1_addr}:${S1_port} daemon
server srv1 ${s1_addr}:${s1_port} check
backend be2
mode tcp
log ${S2_addr}:${S2_port} daemon
option httpchk OPTIONS * HTTP/1.1
http-check send hdr Host www
server srv2 ${s2_addr}:${s2_port} check
backend be3
log ${S3_addr}:${S3_port} daemon
server srv3 255.255.255.255:11111 check
backend be4
log ${S4_addr}:${S4_port} daemon
server srv4 localhost:11111 check
} -start
haproxy h1 -cli {
barrier b sync
send "show servers state"
expect ~ .*
}
server s1 -wait
server s2 -wait
syslog S1 -wait
syslog S2 -wait
syslog S3 -wait
syslog S4 -wait