Enhancement: Support of OSA for zVM HCP (#230)

Support of OSA for zVM HCP - Added changes to support for OSA for zVM HCP - Changed variable name from osa to interface , to be generic. - Updated the documentation for the same. --------- Signed-off-by: root <root@m42lp53.lnxero1.boe> Signed-off-by: veera-damisetti <damisetti.veerabhadrarao@ibm.com> Signed-off-by: Klaus Smolin <smolin@de.ibm.com> Signed-off-by: Mohammed Zeeshan Ahmed <mohammed.zee1000@gmail.com> Co-authored-by: root <root@m42lp53.lnxero1.boe> Co-authored-by: Klaus Smolin <88041391+smolin-de@users.noreply.github.com> Co-authored-by: Amadeuds Podvratnik <pod@de.ibm.com> Co-authored-by: Mohammed Ahmed <mohammed.zee1000@gmail.com>
IBM · Feb 25, 2024 · 51849e4 · 51849e4
1 parent 9c6f371
commit 51849e4
Show file tree

Hide file tree

Showing 13 changed files with 66 additions and 32 deletions.
diff --git a/docs/set-variables-group-vars.md b/docs/set-variables-group-vars.md
@@ -253,14 +253,26 @@
 **hypershift.agents_parms.ram** | RAM for agents | 16384
 **hypershift.agents_parms.vcpus** | vCPUs for agents | 4
 **hypershift.agents_parms.nameserver** | Nameserver to be used for agents | 192.168.10.1
-**hypershift.agents_parms.zvm_parameters.network_mode** | Network mode for zvm nodes <br /> Supported modes: vswitch |  vswitch
+**hypershift.agents_parms.zvm_parameters.network_mode** | Network mode for zvm nodes <br /> Supported modes: vswitch,osa |  vswitch
 **hypershift.agents_parms.zvm_parameters.disk_type** | Disk type for zvm nodes <br /> Supported disk types: fcp, dasd | dasd
 **hypershift.agents_parms.zvm_parameters.vcpus** | CPUs for each zvm node | 4
 **hypershift.agents_parms.zvm_parameters.memory** | RAM for each zvm node | 16384
 **hypershift.agents_parms.zvm_parameters.nameserver** | Nameserver for compute nodes | 192.168.10.1
 **hypershift.agents_parms.zvm_parameters.subnetmask** | Subnet mask for compute nodes | 255.255.255.0
 **hypershift.agents_parms.zvm_parameters.gateway** | Gateway for compute nodes | 192.168.10.1
 **hypershift.agents_parms.zvm_parameters.nodes** | Set of parameters for zvm nodes <br /> Give the details of each zvm node here | 
+**hypershift.agents_parms.zvm_parameters.nodes.name** | Name of the zVM guest | m1317002
+**hypershift.agents_parms.zvm_parameters.nodes.host** | Host name of the zVM guests <br /> which we use to login 3270 console | boem1317
+**hypershift.agents_parms.zvm_parameters.nodes.user** | Username for zVM guests to login | m1317002
+**hypershift.agents_parms.zvm_parameters.nodes.password** | password for the zVM guests to login | password
+**hypershift.agents_parms.zvm_parameters.nodes.interface.ifname** | Network interface name for zVM guests | encbdf0
+**hypershift.agents_parms.zvm_parameters.nodes.interface.nettype** | Network type for zVM guests for network connectivity | qeth
+**hypershift.agents_parms.zvm_parameters.nodes.interface.subchannels** | subchannels for zVM guests interfaces | 0.0.bdf0,0.0.bdf1,0.0.bdf2
+**hypershift.agents_parms.zvm_parameters.nodes.interface.options** | Configurations options  | layer2=1
+**hypershift.agents_parms.zvm_parameters.nodes.interface.ip** | IP addresses for to be used for zVM nodes | 192.168.10.1
+**hypershift.agents_parms.zvm_parameters.nodes.dasd.disk_id** | Disk id for dasd disk to be used for zVM node | 4404 
+**hypershift.agents_parms.zvm_parameters.nodes.lun** | Disk details of fcp disk to be used for zVM node | 4404
+
 
 ## 17 - (Optional) Disconnected cluster setup
 **Variable Name** | **Description** | **Example**

diff --git a/inventories/default/group_vars/all.yaml.template b/inventories/default/group_vars/all.yaml.template
@@ -275,6 +275,7 @@ hypershift:
   #Hosted Control Plane Parameters
 
   hcp:
+    high_availabiliy: true
     clusters_namespace:
     hosted_cluster_name:
     basedomain:
@@ -320,13 +321,14 @@ hypershift:
     ram: 16384
     vcpus: 4
     nameserver:
-
+    storage:
+      pool_path: "/var/lib/libvirt/images/"
 
 
     # zVM specific parameters - s390x
 
     zvm_parameters:
-      network_mode: vswitch   # Supported modes: vswitch
+      network_mode: vswitch   # Supported modes: vswitch,osa
       disk_type:              # Supported modes: fcp , dasd
       vcpus: 4
       memory: 16384
@@ -335,13 +337,15 @@ hypershift:
       gateway:
 
       nodes:
-        - name:
-          host:
-          user:
-          password:
-          osa:
+        - name: 
+          host: 
+          user: 
+          password: 
+          interface:
             ifname: encbdf0
-            id: 0.0.bdf0,0.0.bdf1,0.0.bdf2
+            nettype: qeth
+            subchannels: 0.0.bdf0,0.0.bdf1,0.0.bdf2
+            options: layer2=1
             ip:
 
           # Required if disk_type is dasd
@@ -355,13 +359,15 @@ hypershift:
               - wwpn:
                 fcp:
 
-        - name:
-          host:
-          user:
-          password:
-          osa:
+        - name: 
+          host: 
+          user: 
+          password: 
+          interface:
             ifname: encbdf0
-            id: 0.0.bdf0,0.0.bdf1,0.0.bdf2
+            nettype: qeth
+            subchannels: 0.0.bdf0,0.0.bdf1,0.0.bdf2
+            options: layer2=1
             ip:
 
           dasd:

diff --git a/roles/add_hc_workers_to_haproxy_hypershift/tasks/main.yaml b/roles/add_hc_workers_to_haproxy_hypershift/tasks/main.yaml
@@ -1,7 +1,7 @@
 ---
 
 - name: Get the IPs of Hosted Cluster Workers
-  shell: oc get no -o wide  --kubeconfig=/root/ansible_workdir/{{ hypershift.hcp.hosted_cluster_name }}-kubeconfig --no-headers|grep -i worker| awk '{print $6}'
+  shell: oc get no -o wide  --kubeconfig=/root/ansible_workdir/hcp-kubeconfig --no-headers|grep -i worker| awk '{print $6}'
   register: hosted_workers
 
 - name: Configuring HAproxy for Hosted Cluster

diff --git a/roles/boot_agents_hypershift/tasks/main.yaml b/roles/boot_agents_hypershift/tasks/main.yaml
@@ -1,6 +1,6 @@
 ---
 - name: Create qemu image for agents
-  command: "qemu-img create -f qcow2 /home/libvirt/images/{{ hypershift.hcp.hosted_cluster_name }}-agent{{ item }}.qcow2 {{ hypershift.agents_parms.disk_size }}"
+  command: "qemu-img create -f qcow2 {{ hypershift.agents_parms.storage.pool_path }}{{ hypershift.hcp.hosted_cluster_name }}-agent{{ item }}.qcow2 {{ hypershift.agents_parms.disk_size }}"
   loop: "{{ range(hypershift.agents_parms.agents_count|int) | list }}"
 
 - name: Boot Agents
@@ -19,7 +19,7 @@
     --cpu host \
     --vcpus="{{ hypershift.agents_parms.vcpus }}"  \
     --location "/var/lib/libvirt/images/pxeboot/,kernel=kernel.img,initrd=initrd.img" \
-    --disk /home/libvirt/images/{{ hypershift.hcp.hosted_cluster_name }}-agent{{ item }}.qcow2 \
+    --disk {{ hypershift.agents_parms.storage.pool_path }}{{ hypershift.hcp.hosted_cluster_name }}-agent{{ item }}.qcow2 \
     --network network:{{ env.bridge_name }},mac=$mac_address \
     --graphics none \
     --noautoconsole  \

diff --git a/roles/boot_zvm_nodes_hypershift/tasks/main.yaml b/roles/boot_zvm_nodes_hypershift/tasks/main.yaml
@@ -21,7 +21,8 @@
         --memory "{{ hypershift.agents_parms.zvm_parameters.memory }}" \
         --kernel 'file:///var/lib/libvirt/images/pxeboot/kernel.img'  \
         --initrd 'file:///var/lib/libvirt/images/pxeboot/initrd.img' \
-        --cmdline "$(cat /root/ansible_workdir/agent-{{ item }}.parm)"
+        --cmdline "$(cat /root/ansible_workdir/agent-{{ item }}.parm)" \
+        --network "{{ hypershift.agents_parms.zvm_parameters.network_mode }}"
 
     - name:  Attaching dasd disk
       shell: vmcp attach {{ hypershift.agents_parms.zvm_parameters.nodes[item].dasd.disk_id }} to {{ hypershift.agents_parms.zvm_parameters.nodes[item].name }} 
@@ -43,5 +44,11 @@
       register: agent_name
 
     - name: Approve agents 
-      shell: oc -n {{ hypershift.hcp.clusters_namespace }}-{{ hypershift.hcp.hosted_cluster_name }}  patch agent {{ agent_name.stdout.split(' ')[0]  }} -p '{"spec":{"approved":true,"hostname":"compute-{{item}}.{{ hypershift.hcp.hosted_cluster_name }}.{{ hypershift.hcp.basedomain }}","installerArgs":"[\"--append-karg\",\"rd.neednet=1\", \"--append-karg\", \"ip={{ hypershift.agents_parms.zvm_parameters.nodes[item].osa.ip }}::{{ hypershift.agents_parms.zvm_parameters.gateway }}:{{ hypershift.agents_parms.zvm_parameters.subnetmask }}:compute-{{ item }}.{{ hypershift.hcp.hosted_cluster_name }}.{{ hypershift.hcp.basedomain }}:{{ hypershift.agents_parms.zvm_parameters.nodes[item].osa.ifname }}:none\", \"--append-karg\", \"nameserver={{ hypershift.agents_parms.zvm_parameters.nameserver }}\", \"--append-karg\",\"rd.znet=qeth,{{ hypershift.agents_parms.zvm_parameters.nodes[item].osa.id }},layer2=1\",\"--append-karg\", {% if hypershift.agents_parms.zvm_parameters.disk_type | lower != 'fcp' %}\"rd.dasd=0.0.{{ hypershift.agents_parms.zvm_parameters.nodes[item].dasd.disk_id }}\"{% else %}\"rd.zfcp={{ hypershift.agents_parms.zvm_parameters.nodes[item].lun[0].paths[0].fcp}},{{ hypershift.agents_parms.zvm_parameters.nodes[item].lun[0].paths[0].wwpn }},{{ hypershift.agents_parms.zvm_parameters.nodes[item].lun[0].id }}\"{% endif %}]"}}' --type merge
+      shell: oc -n {{ hypershift.hcp.clusters_namespace }}-{{ hypershift.hcp.hosted_cluster_name }}  patch agent {{ agent_name.stdout.split(' ')[0]  }} -p '{"spec":{"approved":true,"hostname":"compute-{{ item }}.{{ hypershift.hcp.hosted_cluster_name }}.{{ hypershift.hcp.basedomain }}"}}' --type merge
+      when: "{{ hypershift.mce.version != '2.4' }}"
+
+    - name: Approve agents and patch installer args 
+      shell: oc -n {{ hypershift.hcp.clusters_namespace }}-{{ hypershift.hcp.hosted_cluster_name }}  patch agent {{ agent_name.stdout.split(' ')[0]  }} -p '{"spec":{"approved":true,"hostname":"compute-{{item}}.{{ hypershift.hcp.hosted_cluster_name }}.{{ hypershift.hcp.basedomain }}","installerArgs":"[\"--append-karg\",\"rd.neednet=1\", \"--append-karg\", \"ip={{ hypershift.agents_parms.zvm_parameters.nodes[item].interface.ip }}::{{ hypershift.agents_parms.zvm_parameters.gateway }}:{{ hypershift.agents_parms.zvm_parameters.subnetmask }}:compute-{{ item }}.{{ hypershift.hcp.hosted_cluster_name }}.{{ hypershift.hcp.basedomain }}:{{ hypershift.agents_parms.zvm_parameters.nodes[item].interface.ifname }}:none\", \"--append-karg\", \"nameserver={{ hypershift.agents_parms.zvm_parameters.nameserver }}\", \"--append-karg\",\"rd.znet={{ hypershift.agents_parms.zvm_parameters.nodes[item].interface.nettype }},{{ hypershift.agents_parms.zvm_parameters.nodes[item].interface.subchannels }},{{ hypershift.agents_parms.zvm_parameters.nodes[item].interface.options }}\",\"--append-karg\", {% if hypershift.agents_parms.zvm_parameters.disk_type | lower != 'fcp' %}\"rd.dasd=0.0.{{ hypershift.agents_parms.zvm_parameters.nodes[item].dasd.disk_id }}\"{% else %}\"rd.zfcp={{ hypershift.agents_parms.zvm_parameters.nodes[item].lun[0].paths[0].fcp}},{{ hypershift.agents_parms.zvm_parameters.nodes[item].lun[0].paths[0].wwpn }},{{ hypershift.agents_parms.zvm_parameters.nodes[item].lun[0].id }}\"{% endif %}]"}}' --type merge
+      when: "{{ hypershift.mce.version == '2.4' }}"
+
 
diff --git a/roles/boot_zvm_nodes_hypershift/templates/boot_nodes.py b/roles/boot_zvm_nodes_hypershift/templates/boot_nodes.py
@@ -13,17 +13,22 @@
 parser.add_argument("--kernel", type=str, help="kernel URI", required=True, default='')
 parser.add_argument("--cmdline", type=str, help="kernel cmdline", required=True, default='')
 parser.add_argument("--initrd", type=str, help="Initrd URI", required=True, default='')
+parser.add_argument("--network", type=str, help="Network mode for zvm nodes Supported modes: OSA, vswitch ", required=True)
 
 args = parser.parse_args()
 
 parameters = {
             'transfer-buffer-size': 8000
     }
 
+interfaces=[]
+if args.network.lower() == 'osa':
+    interfaces=[{ "type": "osa", "id": "{{ hypershift.agents_parms.zvm_parameters.nodes[item].interface.subchannels.split(',') | map('regex_replace', '0.0.', '') | join(',') }}"}]
+
 guest_parameters = {
 "boot_method": "network",
 "storage_volumes" : [],
-"ifaces" : [],
+"ifaces" : interfaces,
 "netboot": {
         "cmdline": args.cmdline,
         "kernel_uri": args.kernel,

diff --git a/roles/create_agentserviceconfig_hypershift/tasks/main.yaml b/roles/create_agentserviceconfig_hypershift/tasks/main.yaml
@@ -22,7 +22,9 @@
 - name: Wait for Agent Service Deployment to be Succeeded
   shell: oc get AgentServiceConfig agent -o json | jq -r '.status|.conditions[]|.status' | grep False | wc -l
   register: asc
-  until: asc.stdout == '0'
+  until:
+    - asc.stdout == '0'
+    - asc.stderr == ''
   retries: 60
   delay: 20
 

diff --git a/roles/create_bastion_hypershift/tasks/main.yaml b/roles/create_bastion_hypershift/tasks/main.yaml
@@ -48,15 +48,15 @@
       chmod 0600 /root/.ssh/authorized_keys
 
 - name: Create qemu image for bastion
-  command: qemu-img create -f qcow2 /home/libvirt/images/{{ hypershift.hcp.hosted_cluster_name }}-bastion.qcow2 100G
+  command: qemu-img create -f qcow2 {{ hypershift.agents_parms.storage.pool_path }}{{ hypershift.hcp.hosted_cluster_name }}-bastion.qcow2 100G
 
 - name: Create bastion
   shell: |
     virt-install \
     --name {{ hypershift.hcp.hosted_cluster_name }}-bastion \
     --memory 4096 \
     --vcpus sockets=1,cores=4,threads=1 \
-    --disk /home/libvirt/images/{{ hypershift.hcp.hosted_cluster_name }}-bastion.qcow2,format=qcow2,bus=virtio,cache=none \
+    --disk {{ hypershift.agents_parms.storage.pool_path }}{{ hypershift.hcp.hosted_cluster_name }}-bastion.qcow2,format=qcow2,bus=virtio,cache=none \
     --os-variant "rhel{{hypershift.bastion_parms.os_variant}}" \
     --network network:{{ env.bridge_name }} \
     --location '{{ env.file_server.protocol }}://{{ env.file_server.user + ':' + env.file_server.pass + '@' if env.file_server.protocol == 'ftp' else '' }}{{ env.file_server.ip }}{{ ':' + env.file_server.port if env.file_server.port | default('') | length > 0 else '' }}/{{ env.file_server.iso_mount_dir }}/' \

diff --git a/roles/create_hcp_InfraEnv_hypershift/tasks/main.yaml b/roles/create_hcp_InfraEnv_hypershift/tasks/main.yaml
@@ -60,7 +60,9 @@
     --base-domain={{ hypershift.hcp.basedomain }} 
     --api-server-address=api.{{ hypershift.hcp.hosted_cluster_name }}.{{ hypershift.hcp.basedomain }} 
     --ssh-key ~/.ssh/{{ env.ansible_key_name }}.pub
+    {% if hypershift.hcp.high_availabiliy == false %}
     --control-plane-availability-policy "SingleReplica"
+    {% endif %}
     --infra-availability-policy "SingleReplica"
     --release-image=quay.io/openshift-release-dev/ocp-release:{{ hypershift.hcp.ocp_release }} 
     {% set release_image = lookup('env', 'HCP_RELEASE_IMAGE') %}

diff --git a/roles/delete_resources_bastion_hypershift/tasks/main.yaml b/roles/delete_resources_bastion_hypershift/tasks/main.yaml
@@ -10,7 +10,7 @@
   k8s_info:
     api_version: v1
     kind: Node
-    kubeconfig: "/root/ansible_workdir/{{ hypershift.hcp.hosted_cluster_name }}-kubeconfig"
+    kubeconfig: "/root/ansible_workdir/hcp-kubeconfig"
   register: nodes
   until: nodes.resources | length == 0
   retries: 30

diff --git a/roles/scale_nodepool_and_wait_for_workers_hypershift/tasks/main.yaml b/roles/scale_nodepool_and_wait_for_workers_hypershift/tasks/main.yaml
@@ -53,20 +53,20 @@
   delay: 10
 
 - name: Create Kubeconfig for Hosted Cluster
-  shell: hcp create kubeconfig --namespace {{ hypershift.hcp.clusters_namespace }} --name {{ hypershift.hcp.hosted_cluster_name }} > /root/ansible_workdir/{{ hypershift.hcp.hosted_cluster_name }}-kubeconfig
+  shell: hcp create kubeconfig --namespace {{ hypershift.hcp.clusters_namespace }} --name {{ hypershift.hcp.hosted_cluster_name }} > /root/ansible_workdir/hcp-kubeconfig
 
 - name: Wait for Worker Nodes to Join 
   k8s_info:
     api_version: v1
     kind: Node
-    kubeconfig: "/root/ansible_workdir/{{ hypershift.hcp.hosted_cluster_name }}-kubeconfig"
+    kubeconfig: "/root/ansible_workdir/hcp-kubeconfig"
   register: nodes
   until: nodes.resources | length == {{ hypershift.agents_parms.agents_count }}
   retries: 300
   delay: 10
 
 - name: Wait for Worker nodes to be Ready
-  shell: oc get no --kubeconfig=/root/ansible_workdir/{{ hypershift.hcp.hosted_cluster_name }}-kubeconfig  --no-headers | grep -i 'NotReady' | wc -l
+  shell: oc get no --kubeconfig=/root/ansible_workdir/hcp-kubeconfig  --no-headers | grep -i 'NotReady' | wc -l
   register: node_status
   until: node_status.stdout == '0'
   retries: 50

diff --git a/roles/setup_for_agents_hypershift/templates/parm-file.parm.j2 b/roles/setup_for_agents_hypershift/templates/parm-file.parm.j2
@@ -1 +1 @@
-rd.neednet=1 console=ttysclp0 coreos.live.rootfs_url=http://{{ hypershift.bastion_hypershift }}:8080/rootfs.img ip={{ hypershift.agents_parms.zvm_parameters.nodes[item].osa.ip }}::{{ hypershift.agents_parms.zvm_parameters.gateway }}:{{ hypershift.agents_parms.zvm_parameters.subnetmask }}::{{ hypershift.agents_parms.zvm_parameters.nodes[item].osa.ifname }}:none nameserver={{ hypershift.agents_parms.zvm_parameters.nameserver }} zfcp.allow_lun_scan=0 rd.znet=qeth,{{ hypershift.agents_parms.zvm_parameters.nodes[item].osa.id }},layer2=1 {% if hypershift.agents_parms.zvm_parameters.disk_type | lower != 'fcp' %}rd.dasd=0.0.{{ hypershift.agents_parms.zvm_parameters.nodes[item].dasd.disk_id }}{% else %}rd.zfcp={{ hypershift.agents_parms.zvm_parameters.nodes[item].lun[0].paths[0].fcp}},{{ hypershift.agents_parms.zvm_parameters.nodes[item].lun[0].paths[0].wwpn }},{{ hypershift.agents_parms.zvm_parameters.nodes[item].lun[0].id }} {% endif %} random.trust_cpu=on rd.luks.options=discard ignition.firstboot ignition.platform.id=metal console=tty1 console=ttyS1,115200n8 coreos.inst.persistent-kargs="console=tty1 console=ttyS1,115200n8"
+rd.neednet=1 console=ttysclp0 coreos.live.rootfs_url=http://{{ hypershift.bastion_hypershift }}:8080/rootfs.img ip={{ hypershift.agents_parms.zvm_parameters.nodes[item].interface.ip }}::{{ hypershift.agents_parms.zvm_parameters.gateway }}:{{ hypershift.agents_parms.zvm_parameters.subnetmask }}::{{ hypershift.agents_parms.zvm_parameters.nodes[item].interface.ifname }}:none nameserver={{ hypershift.agents_parms.zvm_parameters.nameserver }} zfcp.allow_lun_scan=0 rd.znet={{ hypershift.agents_parms.zvm_parameters.nodes[item].interface.nettype }},{{ hypershift.agents_parms.zvm_parameters.nodes[item].interface.subchannels }},{{ hypershift.agents_parms.zvm_parameters.nodes[item].interface.options }} {% if hypershift.agents_parms.zvm_parameters.disk_type | lower != 'fcp' %}rd.dasd=0.0.{{ hypershift.agents_parms.zvm_parameters.nodes[item].dasd.disk_id }}{% else %}rd.zfcp={{ hypershift.agents_parms.zvm_parameters.nodes[item].lun[0].paths[0].fcp}},{{ hypershift.agents_parms.zvm_parameters.nodes[item].lun[0].paths[0].wwpn }},{{ hypershift.agents_parms.zvm_parameters.nodes[item].lun[0].id }} {% endif %} random.trust_cpu=on rd.luks.options=discard ignition.firstboot ignition.platform.id=metal console=tty1 console=ttyS1,115200n8 coreos.inst.persistent-kargs="console=tty1 console=ttyS1,115200n8"
diff --git a/roles/wait_for_hc_to_complete_hypershift/tasks/main.yaml b/roles/wait_for_hc_to_complete_hypershift/tasks/main.yaml
@@ -1,7 +1,7 @@
 ---
 
 - name: Wait for All Cluster Operators to be available
-  shell: oc get co --kubeconfig=/root/ansible_workdir/{{ hypershift.hcp.hosted_cluster_name }}-kubeconfig --no-headers| awk '$3 != "True" {print $1}' | wc -l
+  shell: oc get co --kubeconfig=/root/ansible_workdir/hcp-kubeconfig --no-headers| awk '$3 != "True" {print $1}' | wc -l
   register: co
   until: co.stdout == '0'
   retries: 60
@@ -15,7 +15,7 @@
   delay: 15
 
 - name: Get URL for Webconsole of Hosted Cluster
-  shell: oc whoami --show-console --kubeconfig=/root/ansible_workdir/{{ hypershift.hcp.hosted_cluster_name }}-kubeconfig
+  shell: oc whoami --show-console --kubeconfig=/root/ansible_workdir/hcp-kubeconfig
   register: console_url
 
 - name: Get Password for Hosted Cluster
@@ -32,7 +32,7 @@
     dest: /root/ansible_workdir/kubeadmin-password
 
 - name: Get api server of Hosted Cluster
-  shell: "cat /root/ansible_workdir/{{ hypershift.hcp.hosted_cluster_name }}-kubeconfig | grep -i server:"
+  shell: "cat /root/ansible_workdir/hcp-kubeconfig | grep -i server:"
   register: api_server
 
 - name: Display Login Credentials