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samba-mirror/ctdb/tests/CLUSTER/complex/42_failover_ssh_hostname.sh
Martin Schwenke 38138b42f7 ctdb-tests: Update preamble for CLUSTER tests
The main change is to source cluster.bash instead of integration.bash.

While touching the preamble, the following additional changes are also
made:

* Drop test_info() definition and replace it with a comment

  The use of test_info() is pointless.

* Drop call to ctdb_test_check_real_cluster()

  cluster.bash now does this.

* Drop call to cluster_is_healthy()

  This is a holdover from when the previous test would restart daemons
  to get things ready for a test.  There was also a bug where going
  into recovery during the restart would sometimes cause the cluster
  to become unhealthy.  If we really need something like this then we
  can add it to ctdb_test_init().

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2019-10-04 09:41:28 +00:00

71 lines
1.9 KiB
Bash
Executable File

#!/bin/bash
# Verify that it is possible to SSH to a public address after disabling a node.
# We SSH to a public IP and check the hostname, disable the node hosting
# it and then SSH again to confirm that the hostname has changed.
# Prerequisites:
# * An active CTDB cluster with at least 2 nodes with public addresses.
# * Test must be run on a real or virtual cluster rather than against
# local daemons.
# * Test must not be run from a cluster node.
# Steps:
# 1. Verify that the cluster is healthy.
# 2. Select a public address and its corresponding node.
# 3. SSH to the selected public address and run hostname.
# 4. Disable the selected node.
# 5. SSH to the selected public address again and run hostname.
# Expected results:
# * When a node is disabled the public address fails over and it is
# still possible to SSH to the node. The hostname should change.
. "${TEST_SCRIPTS_DIR}/cluster.bash"
set -e
ctdb_test_init
select_test_node_and_ips
echo "Removing ${test_ip} from the local neighbor table..."
ip neigh flush "$test_prefix" >/dev/null 2>&1 || true
echo "SSHing to ${test_ip} and running hostname..."
if ! original_hostname=$(ssh -o "StrictHostKeyChecking no" $test_ip hostname) ; then
die "Failed to get original hostname via SSH..."
fi
echo "Hostname is: ${original_hostname}"
gratarp_sniff_start
echo "Disabling node $test_node"
try_command_on_node 1 $CTDB disable -n $test_node
wait_until_node_has_status $test_node disabled
gratarp_sniff_wait_show
echo "SSHing to ${test_ip} and running hostname (again)..."
if ! new_hostname=$(ssh -o "StrictHostKeyChecking no" $test_ip hostname) ; then
echo "Failed to get new hostname via SSH..."
echo "DEBUG:"
ip neigh show
exit 1
fi
echo "Hostname is: ${new_hostname}"
if [ "$original_hostname" != "$new_hostname" ] ; then
echo "GOOD: hostname changed"
else
die "BAD: hostname did not change"
fi