Simplify some scripts and remove some unnecessary jq usage

jq is powerful tool but in some points it's kind of overkill and jq
can be replaced by simple openstack command with appropriate options.

Change-Id: I5cb09b953d725482a525be16be31f0e2ecf42966

tasks/common/undercloud_validate_upgrade.yaml

@@ -70,7 +70,7 @@
     - name: assert UC services started
       shell: |
         source {{ undercloud_rc }} ;
-        timeout 10 openstack stack list -f json | jq -c -r '.[]|.["Stack Name"]'
+        timeout 10 openstack stack list -f value -c "Stack Name"
       ignore_errors: true
       register: oc_name
       until: oc_name.stdout.find('{{ overcloud_stack_name }}') != -1

tasks/upgrade/undercloud_ssl_camap.yaml

@@ -87,7 +87,7 @@
     - name: register overcloud nodes ip address
       shell: |
         source {{ undercloud_rc }}
-        openstack server list -f json | jq -r -c '.[] | .Networks' | grep -oP '[0-9.]+'
+        openstack server list -f value -c Networks |  grep -oP '[0-9.]+'
       register: node_ip
 
     - name: copy certificate to the overcloud nodes and update the trusted store

templates/node_upgrade_post.sh.j2

@@ -88,7 +88,7 @@ while true; do
         echo "Block migrating {{ instance }} back to {{ node_name }} ..."
         nova live-migration --block-migrate {{ instance }} {{ node_name }}
     fi
-    INSTANCE_HOST=$(openstack server show {{ instance }} -f json | jq -r -c '. | .["OS-EXT-SRV-ATTR:host"]')
+    INSTANCE_HOST=$(openstack server show {{ instance }} -f value -c OS-EXT-SRV-ATTR:host)
     if [ $INSTANCE_HOST == '{{ node_name }}' ]; then
         break
     fi

templates/nova_actions_check.sh.j2

@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 set -eux
 
-SERVER_ID=$(openstack server list -f json | jq -r -c '.[0] | .ID')
+SERVER_ID=$(openstack server list -f value -c ID --limit 1)
 SERVER_FIP=$(openstack server show -f json ${SERVER_ID} | jq -r -c '.addresses' | grep -oP ',.*' | sed s/,\ //)
 SERVER_SSH_USER={{ workload_user }}