Improve tolerance for failed nodes

Raise SSH reconnects to 20
Disable any_errors_fatal

Depends on https://github.com/kubernetes-incubator/kargo/pull/1201/

Change-Id: I0d20c9e0e80f87561c50957fdff1e576ec89646c

utils/jenkins/kargo_deploy.sh

@@ -142,7 +142,8 @@ function with_ansible {
     until admin_node_command \
         ANSIBLE_CONFIG=$ADMIN_WORKSPACE/utils/kargo/ansible.cfg \
         ansible-playbook \
-        --ssh-extra-args "-A\ -o\ StrictHostKeyChecking=no" -u ${ADMIN_USER} -b \
+        --ssh-extra-args "-A\ -o\ StrictHostKeyChecking=no\ -o\ ConnectionAttempts=20" \
+        -u ${ADMIN_USER} -b \
         --become-user=root -i $ADMIN_WORKSPACE/inventory/inventory.cfg \
         --forks=$ANSIBLE_FORKS --timeout $ANSIBLE_TIMEOUT $DEFAULT_OPTS \
         -e ansible_ssh_user=${ADMIN_USER} \

utils/kargo/kargo_default_common.yaml

@@ -50,6 +50,9 @@ upstream_dns_servers:
 # has some bugs when DHCP is enabled.
 resolvconf_mode: host_resolvconf
 
+# Continue deploying other hosts even if one failed
+any_errors_fatal: false
+
 # Tweak kubelet monitoring parameters to node/endpoint node flapping
 kubelet_status_update_frequency: "20s"
 kube_controller_node_monitor_grace_period: "2m"