fix: stop using openssl for container healthchecks (#4181)

Dragonfly responds to ascii based requests to tls port with:
`-ERR Bad TLS header, double check if you enabled TLS for your client.`

Therefore, it is possible to test now both tls and non-tls ports with a plain-text PING.
Fixes #4171

Also, blacklist the bloom-filter test that Dragonfly does not support yet.

Signed-off-by: Roman Gershman <roman@dragonflydb.io>

tests/fakeredis/test/test_stack/test_bloomfilter.py

@@ -16,6 +16,7 @@ def test_create_bf(r: redis.Redis):
     assert r.bf().create("bloom_ns", 0.01, 1000, noScale=True)
 
 
+@pytest.mark.unsupported_server_types("dragonfly")
 def test_bf_reserve(r: redis.Redis):
     assert r.bf().reserve("bloom", 0.01, 1000)
     assert r.bf().reserve("bloom_ns", 0.01, 1000, noScale=True)

tools/docker/healthcheck.sh

@@ -20,13 +20,7 @@ if [ -z "$HEALTHCHECK_PORT" ]; then
   PORT=$(echo $DF_NET | grep -oE ':[0-9]+' | cut -c2- | tail -n 1)
 fi
 
-# If we're running with TLS enabled, utilise OpenSSL for the check
-if [ -f "/etc/dragonfly/tls/ca.crt" ]
-then
-    _healthcheck="openssl s_client -connect ${HOST}:${PORT} -CAfile /etc/dragonfly/tls/ca.crt -quiet -no_ign_eof"
-else
-    _healthcheck="nc -q1 $HOST $PORT"
-fi
+_healthcheck="nc -q1 $HOST $PORT"
 
 echo PING | ${_healthcheck}