···
client2.succeed("[ $(consul kv get testkey) == 42 ]")
+
def rolling_reboot_test(proper_rolling_procedure=True):
Tests that the cluster can tolearate failures of any single server,
following the recommended rolling upgrade procedure from
+
https://www.consul.io/docs/upgrading#standard-upgrades.
+
Optionally, `proper_rolling_procedure=False` can be given
+
to wait only for each server to be back `Healthy`, not `Stable`
+
in the Raft consensus, see Consul setting `ServerStabilizationTime` and
+
https://github.com/hashicorp/consul/issues/8118#issuecomment-645330040.
···
# Restart crashed machine.
+
if proper_rolling_procedure:
+
wait_for_healthy_servers()
+
# NOT proper rolling upgrade procedure, see above.
+
wait_for_all_machines_alive()
# Wait for client connections.
client1.wait_until_succeeds("consul kv get -recurse")
···
client2.succeed("consul kv delete testkey")
+
def all_servers_crash_simultaneously_test():
+
Tests that the cluster will eventually come back after all
+
servers crash simultaneously.
+
wait_for_healthy_servers()
+
# Wait for client connections.
+
client1.wait_until_succeeds("consul kv get -recurse")
+
client2.wait_until_succeeds("consul kv get -recurse")
+
# Do some consul actions with servers back up.
+
client1.succeed("consul kv put testkey 44")
+
client2.succeed("[ $(consul kv get testkey) == 44 ]")
+
client2.succeed("consul kv delete testkey")
+
print("rolling_reboot_test()")
+
print("all_servers_crash_simultaneously_test()")
+
all_servers_crash_simultaneously_test()
+
print("rolling_reboot_test(proper_rolling_procedure=False)")
+
rolling_reboot_test(proper_rolling_procedure=False)
pyrox.dev