Add support for HAProxy L7 checks

This change add several configuration options to enable HTTP checks
to the HAProxy configuration, instead of the default TCP connection
checks.

Closes-Bug: #1880610
Change-Id: Ie1f53d38c1c45ce3b2ddf5041eaa04a7f3139066

lib/swift_context.py

@@ -22,6 +22,7 @@ from charmhelpers.contrib.openstack.context import (
 from charmhelpers.contrib.hahelpers.cluster import (
     determine_api_port,
     determine_apache_port,
+    https,
 )
 from charmhelpers.contrib.network.ip import (
     format_ipv6_addr,
@@ -54,8 +55,17 @@ class HAProxyContext(OSContextGenerator):
         api_port = determine_apache_port(config('bind-port'),
                                          singlenode_mode=True)
 
+        healthcheck = [{
+            'option': 'httpchk GET /healthcheck',
+            'http-check': 'expect status 200',
+        }]
+
+        backend_options = {'swift_api': healthcheck}
+
         ctxt = {
             'service_ports': {'swift_api': [haproxy_port, api_port]},
+            'backend_options': backend_options,
+            'https': https()
         }
         return ctxt
 

tests/tests.yaml

@@ -10,7 +10,7 @@ dev_bundles:
 
 smoke_bundles:
   # Use no s3api test for smoke
-  - focal-yoga
+  - jammy-yoga
 
 configure:
   - swift_gr_region1:

tox.ini

@@ -25,7 +25,7 @@ setenv = VIRTUAL_ENV={envdir}
 commands = stestr run --slowest {posargs}
 allowlist_externals =
     charmcraft
-    rename.sh
+    {toxinidir}/rename.sh
 passenv =
     HOME
     TERM