Add multinode CI job

Packstack has traditionally allowed multinode deployments with
1 controller, one or more network nodes and several compute nodes,
but this has never been properly tested in our CI.

This job enables an option to use a 2-node architecture, with one
controller and one compute node. It adds a job running scenario002,
but enables scenario001 and scenario003, so they can be used on
demand if needed.

Change-Id: Ide96a232c902370f3ec25ed54f2b272cc1757dad

.zuul.yaml

@@ -1,10 +1,8 @@
 - job:
     name: packstack-base
     parent: base
-    timeout: 3600
-    nodeset: centos-7
+    timeout: 7200
     pre-run: playbooks/packstack-pre.yaml
-    run: playbooks/packstack-integration-tempest.yaml
     post-run: playbooks/upload-logs.yaml
     irrelevant-files:
       - ^docs/.*$
@@ -36,31 +34,62 @@
       - openstack/puppet-vswitch
 
 - job:
-    name: packstack-integration-scenario001-tempest
+    name: packstack-allinone
     parent: packstack-base
+    nodeset:
+      nodes:
+        - name: allinone
+          label: centos-7
+    run: playbooks/packstack-integration-tempest.yaml
+
+- job:
+    name: packstack-multinode
+    parent: packstack-base
+    nodeset:
+      nodes:
+        - name: controller
+          label: centos-7
+        - name: compute
+          label: centos-7
+    run: playbooks/packstack-multinode.yaml
+
+- job:
+    name: packstack-integration-scenario001-tempest
+    parent: packstack-allinone
     vars:
       scenario: scenario001
 
 - job:
     name: packstack-integration-scenario002-tempest
-    parent: packstack-base
+    parent: packstack-allinone
     vars:
       scenario: scenario002
 
 - job:
     name: packstack-integration-scenario003-tempest
-    parent: packstack-base
+    parent: packstack-allinone
     vars:
       scenario: scenario003
 
+# We should have nested post-run jobs, according to
+# https://docs.openstack.org/infra/zuul/user/config.html#job
+- job:
+    name: packstack-multinode-scenario002-tempest
+    parent: packstack-multinode
+    post-run: playbooks/packstack-post-compute.yaml
+    vars:
+      scenario: scenario002
+
 - project:
     check:
       jobs:
         - packstack-integration-scenario001-tempest
         - packstack-integration-scenario002-tempest
         - packstack-integration-scenario003-tempest
+        - packstack-multinode-scenario002-tempest
     gate:
       jobs:
         - packstack-integration-scenario001-tempest
         - packstack-integration-scenario002-tempest
         - packstack-integration-scenario003-tempest
+        - packstack-multinode-scenario002-tempest

playbooks/packstack-multinode.yaml

@@ -0,0 +1,59 @@
+- hosts: compute
+  name: setup RDO Trunk repositories
+  vars:
+    delorean: "https://trunk.rdoproject.org/centos7-master/current-passed-ci/delorean.repo"
+    delorean_deps: "https://trunk.rdoproject.org/centos7-master/delorean-deps.repo"
+  tasks:
+    - name: Fetch DLRN repo
+      get_url:
+       url: "{{ delorean }}"
+       dest: /etc/yum.repos.d/delorean.repo
+       mode: 0640
+      become: true
+    - name: Fetch DLRN dependency repo
+      get_url:
+       url: "{{ delorean_deps }}"
+       dest: /etc/yum.repos.d/delorean-deps.repo
+       mode: 0640
+      become: true
+
+- hosts: controller
+  name: packstack-multinode
+  tasks:
+    - name: Generate SSH key on controller
+      shell: ssh-keygen -t rsa -f /root/.ssh/id_rsa -P ""
+      args:
+        creates: /root/.ssh/id_rsa
+      become: true
+
+    - name: Fetch SSH key
+      shell: cat /root/.ssh/id_rsa.pub
+      become: true
+      register: ssh_key
+
+    - name: Deploy SSH key on compute node
+      authorized_key:
+        user: root
+        state: present
+        key: "{{ ssh_key.stdout }}"
+      delegate_to: "{{ hostvars['compute'].ansible_host }}"
+      become: true
+
+    - name: Deploy SSH key on controller
+      authorized_key:
+        user: root
+        state: present
+        key: "{{ ssh_key.stdout }}"
+      become: true
+
+    - name: Run Packstack
+      shell:
+        cmd: |
+          set -e
+          set -x
+          export SCENARIO='{{ scenario }}'
+          export CONTROLLER_NODE="{{ hostvars['controller'].nodepool.public_ipv4 }}"
+          export COMPUTE_NODE="{{ hostvars['compute'].nodepool.public_ipv4 }}"
+          ./run_tests.sh
+        executable: /bin/bash
+        chdir: '{{ ansible_user_dir }}/workspace/packstack'

playbooks/packstack-post-compute.yaml

@@ -0,0 +1,20 @@
+- hosts: compute
+  name: store compute node logs
+  tasks:
+    - file:
+        path: /tmp/logs
+        state: directory
+        mode: 0755
+
+    - file:
+        path: /tmp/compute
+        state: directory
+        mode: 0755
+
+    - shell:
+        cmd: |
+          source /home/zuul/src/git.openstack.org/openstack/packstack/tools/copy-logs.sh
+          recover_default_logs
+          mv /tmp/logs/* /tmp/compute
+          mv /tmp/compute /tmp/logs
+      become: true

run_tests.sh

@@ -28,6 +28,10 @@ SELINUX_ENFORCING=${SELINUX_ENFORCING:-true}
 # If logs should be retrieved automatically
 COPY_LOGS=${COPY_LOGS:-true}
 
+# Let's add an option for a secondary node, to act as a compute
+CONTROLLER_NODE=${CONTROLLER_NODE:-}
+COMPUTE_NODE=${COMPUTE_NODE:-}
+
 # Install external Puppet modules with r10k
 # Uses the following variables:
 #

tests/scenario001.sh

@@ -1,4 +1,7 @@
 #!/bin/bash
+CONTROLLER_NODE=${CONTROLLER_NODE:-}
+COMPUTE_NODE=${COMPUTE_NODE:-}
+
 if [ $(id -u) != 0 ]; then
     SUDO='sudo'
 fi
@@ -14,8 +17,14 @@ echo -e "Generating packstack config for:
 echo "tempest will run if packstack's installation completes successfully."
 echo
 
+if [ -z $COMPUTE_NODE ]; then
+  NODE_FLAGS="--allinone"
+else
+  NODE_FLAGS="--allinone --os-controller-host=$CONTROLLER_NODE --os-network-hosts=$CONTROLLER_NODE --os-compute-hosts=$COMPUTE_NODE"
+fi
+
 $SUDO packstack ${ADDITIONAL_ARGS} \
-          --allinone \
+          ${NODE_FLAGS} \
           --cinder-volume-name="aVolume" \
           --debug \
           --service-workers=2 \

tests/scenario002.sh

@@ -1,4 +1,7 @@
 #!/bin/bash
+CONTROLLER_NODE=${CONTROLLER_NODE:-}
+COMPUTE_NODE=${COMPUTE_NODE:-}
+
 if [ $(id -u) != 0 ]; then
     SUDO='sudo'
 fi
@@ -16,9 +19,16 @@ echo -e "Generating packstack config for:
 echo "tempest will run if packstack's installation completes successfully."
 echo
 
+if [ -z $COMPUTE_NODE ]; then
+  NODE_FLAGS="--allinone"
+else
+  NODE_FLAGS="--allinone --os-controller-host=$CONTROLLER_NODE --os-network-hosts=$CONTROLLER_NODE --os-compute-hosts=$COMPUTE_NODE"
+fi
+
 $SUDO packstack ${ADDITIONAL_ARGS} \
-          --allinone \
+          ${NODE_FLAGS} \
           --debug \
+          --os-debug-mode=y \
           --service-workers=2 \
           --default-password="packstack" \
           --os-aodh-install=n \

tests/scenario003.sh

@@ -1,4 +1,7 @@
 #!/bin/bash
+CONTROLLER_NODE=${CONTROLLER_NODE:-}
+COMPUTE_NODE=${COMPUTE_NODE:-}
+
 if [ $(id -u) != 0 ]; then
     SUDO='sudo'
 fi
@@ -18,9 +21,16 @@ echo -e "Generating packstack config for:
 echo "tempest will run if packstack's installation completes successfully."
 echo
 
+if [ -z $COMPUTE_NODE ]; then
+  NODE_FLAGS="--allinone"
+else
+  NODE_FLAGS="--allinone --os-controller-host=$CONTROLLER_NODE --os-network-hosts=$CONTROLLER_NODE --os-compute-hosts=$COMPUTE_NODE"
+fi
+
 $SUDO packstack ${ADDITIONAL_ARGS} \
-          --allinone \
+          ${NODE_FLAGS} \
           --debug \
+          --os-debug-mode=y \
           --service-workers=2 \
           --default-password="packstack" \
           --os-swift-install=n \