Convert gate to Ansible setup

To support multinode we must now distribute our setup to multiple
hosts. Instead of making special rules for this, we are going to
convert our existing setup to Ansible. This way both setup proceedures
take place in the exact same fashion.

Partially-Implements: blueprint multinode-gate
Change-Id: I43ece298bba994e9b5083403ef3cf6d4245cda6d

5 files changed, 126 insertions, 48 deletions

diff --git a/tests/setup_ubuntu.sh b/tests/setup_Debian.sh
index 66280da34..c9159e003 100755
--- a/tests/setup_ubuntu.sh
+++ b/tests/setup_Debian.sh
@@ -3,7 +3,10 @@
 set -o xtrace
 set -o errexit
 
-sudo mount
+DEV=$1
+
+# (SamYaple)TODO: Remove the path overriding
+export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
 
 # Setup Docker repo and add signing key
 echo 'deb http://apt.dockerproject.org/repo ubuntu-trusty main' | sudo tee /etc/apt/sources.list.d/docker.list
diff --git a/tests/setup_centos.sh b/tests/setup_RedHat.sh
index 5800cce3c..e9920a0da 100755
--- a/tests/setup_centos.sh
+++ b/tests/setup_RedHat.sh
@@ -3,6 +3,11 @@
 set -o xtrace
 set -o errexit
 
+DEV=$1
+
+# (SamYaple)TODO: Remove the path overriding
+export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
+
 cat | sudo tee /etc/yum.repos.d/docker.repo << EOF
 [docker]
 name=Docker Main Repository
diff --git a/tests/setup_deploy.sh b/tests/setup_deploy.sh
deleted file mode 100755
index 366bbf5a8..000000000
--- a/tests/setup_deploy.sh
+++ /dev/null
@@ -1,31 +0,0 @@
-#!/bin/bash
-
-set -o xtrace
-set -o errexit
-
-export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
-
-function create_keys {
-    # Setup ssh key as required
-    sudo -H ssh-keygen -f /root/.ssh/id_rsa -N ""
-    sudo -H cat /root/.ssh/id_rsa.pub | sudo -H tee /root/.ssh/authorized_keys
-}
-
-function install_deps {
-    # Install Ansible and docker-py
-    sudo -H pip install "ansible<2" docker-py
-    pip freeze | egrep "docker|ansible"
-}
-
-function copy_configs {
-    # Copy configs
-    sudo cp -a etc/kolla /etc/
-}
-
-create_keys
-install_deps
-copy_configs
-
-# Link the logs directory into root
-mkdir -p logs
-sudo ln -s $(pwd)/logs /root/logs
diff --git a/tests/setup_gate.sh b/tests/setup_gate.sh
index 7919f4ae9..b270c03c2 100755
--- a/tests/setup_gate.sh
+++ b/tests/setup_gate.sh
@@ -3,25 +3,98 @@
 set -o xtrace
 set -o errexit
 
-export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
-
-# TODO(SamYaple): This check could be much better, but should work for now
-if [[ $(hostname | grep rax) ]]; then
-    export DEV="xvde"
-else
-    echo "Assuming this is an hpcloud box"
-    export DEV="vdb"
-fi
-
 # Just for mandre :)
 if [[ ! -f /etc/sudoers.d/jenkins ]]; then
     echo "jenkins ALL=(:docker) NOPASSWD: ALL" | sudo tee /etc/sudoers.d/jenkins
 fi
 
-# This creates a logs directory for the devstack logs publisher
-mkdir logs
-# We symlink the logs dir to a known location
-ln -s $(pwd)/logs /tmp/logs
+function detect_disk {
+    # TODO(SamYaple): This check could be much better, but should work for now
+    if [[ $(hostname | grep rax) ]]; then
+        export DEV="xvde"
+    else
+        echo "Assuming this is an hpcloud box"
+        export DEV="vdb"
+    fi
+}
+
+function setup_config {
+    # Copy configs
+    sudo cp -a etc/kolla /etc/
+}
+
+function detect_distro {
+    DISTRO=$(ansible all -i "localhost," -msetup -clocal | awk -F\" '/ansible_os_family/ {print $4}')
+}
+
+function setup_ssh {
+    # Generate a new keypair that Ansible will use
+    ssh-keygen -f /home/jenkins/.ssh/kolla -N ''
+    cat /home/jenkins/.ssh/kolla.pub >> /home/jenkins/.ssh/authorized_keys
+
+    # Push the the public key around to all of the nodes
+    for ip in $(cat /etc/nodepool/sub_nodes_private); do
+        scp /home/jenkins/.ssh/kolla.pub ${ip}:/home/jenkins/.ssh/authorized_keys
+        # TODO(SamYaple): Remove this root key pushing once Kolla doesn't
+        # require root anymore.
+        ssh ${ip} -i /home/jenkins/.ssh/kolla 'sudo mkdir -p /root/.ssh; sudo cp /home/jenkins/.ssh/* /root/.ssh/'
+    done
+
+    # From now on use the new IdentityFile for connecting to other hosts
+    echo "IdentityFile /home/jenkins/.ssh/kolla" >> /home/jenkins/.ssh/config
+}
+
+function setup_inventory {
+    local counter=0
+
+    detect_distro
+    if [[ "${DISTRO}" == "Debian" ]]; then
+        ANSIBLE_CONNECTION_TYPE=ssh
+    else
+        ANSIBLE_CONNECTION_TYPE=local
+    fi
+
+    echo -e "127.0.0.1\tlocalhost" > /tmp/hosts
+    for ip in $(cat /etc/nodepool/{node_private,sub_nodes_private}); do
+        : $((counter++))
+        echo -e "${ip}\tnode${counter} $(ssh ${ip} hostname)" >> /tmp/hosts
+        echo "node${counter} ansible_connection=${ANSIBLE_CONNECTION_TYPE}" >> ${RAW_INVENTORY}
+    done
+
+    sudo chown root: /tmp/hosts
+    sudo chmod 644 /tmp/hosts
+    sudo mv /tmp/hosts /etc/hosts
+}
+
+function setup_ansible {
+    RAW_INVENTORY=/tmp/kolla/raw_inventory
+    mkdir /tmp/kolla
+
+    sudo -H pip install "ansible<2" docker-py
+
+    setup_inventory
+
+    # Record the running state of the environment as seen by the setup module
+    ansible all -i ${RAW_INVENTORY} -m setup > /tmp/logs/ansible/initial-setup
+}
+
+function setup_node {
+    detect_disk
+    ansible-playbook -i ${RAW_INVENTORY} -edocker_dev=${DEV} tests/setup_nodes.yml
+}
+
+function setup_logging {
+    # This directory is the directory that is copied with the devstack-logs
+    # publisher. It must exist at /home/jenkins/workspace/<job-name>/logs
+    mkdir logs
+
+    # For ease of access we symlink that logs directory to a known path
+    ln -s $(pwd)/logs /tmp/logs
+    mkdir -p /tmp/logs/{ansible,build}
+}
 
-distro=$(awk -F'[="]'+ '/^ID/ {print tolower($2); exit}' /etc/*-release)
-exec tests/setup_${distro}.sh
+setup_logging
+setup_ssh
+setup_ansible
+setup_node
+setup_config
diff --git a/tests/setup_nodes.yml b/tests/setup_nodes.yml
new file mode 100644
index 000000000..e23da173d
--- /dev/null
+++ b/tests/setup_nodes.yml
@@ -0,0 +1,28 @@
+---
+- hosts: all
+  sudo: yes
+  tasks:
+  - name: Setup /etc/hosts
+    copy:
+      src: /etc/hosts
+      dest: /etc/hosts
+
+  - name: Assign hostname
+    hostname:
+      name: "{{ inventory_hostname }}"
+
+  - name: Copy setup script
+    copy:
+      src: setup_{{ ansible_os_family }}.sh
+      dest: /tmp/setup.sh
+      mode: 0755
+
+- hosts: all
+  tasks:
+  - name: Create log directory for node
+    file:
+      state: directory
+      path: /tmp/{{ inventory_hostname }}
+
+  - name: Run node setup
+    shell: sudo /tmp/setup.sh {{ docker_dev }}