Add Ansible playbooks for host machine setup

This is currently host setup on CentOS 7 and setting up an
autocluster-specific SSH key on the host.

Signed-off-by: Martin Schwenke <martin@meltin.net>

3 files changed, 164 insertions, 0 deletions

diff --git a/ansible/host/autocluster_setup_centos7.yml b/ansible/host/autocluster_setup_centos7.yml
new file mode 100644
index 0000000..87d9df8
--- /dev/null
+++ b/ansible/host/autocluster_setup_centos7.yml
@@ -0,0 +1,138 @@
+---
+- name: Set up the host machine for autocluster
+  connection: local
+  hosts: localhost
+
+  tasks:
+  - name: install latest vagrant rpm
+    package:
+      name: https://releases.hashicorp.com/vagrant/2.2.3/vagrant_2.2.3_x86_64.rpm
+      state: present
+
+  - name: install vagrant plugins
+    command: vagrant plugin install {{item}}
+    with_items:
+    - vagrant-libvirt
+    - vagrant-proxyconf
+
+  - name: dependencies for virt_pool module
+    package:
+      name:
+      - libvirt-python
+      - python-lxml
+      state: present
+
+  - name: ensure autocluster storage pool exists
+    virt_pool:
+      name: autocluster
+      state: present
+      autostart: yes
+      xml: >
+        <pool type='dir'>
+          <name>autocluster</name>
+            <target>
+              <path>/virtual/autocluster</path>
+            </target>
+        </pool>
+
+  # It seems that you can't force the pool to be active above when creating it!
+  - name: ensure autocluster storage pool is active
+    virt_pool:
+      name: autocluster
+      state: active
+
+  - name: install NFS server
+    package:
+      name: nfs-utils
+      state: present
+
+  - name: enable/start NFS server
+    service:
+      name: "{{item}}"
+      enabled: yes
+      state: started
+    with_items:
+    - nfs
+    - nfslock
+
+  # This was tough to figure out...
+  - name: allow NFS through firewall
+    firewalld:
+      service: "{{item}}"
+      zone: public
+      state: enabled
+      permanent: yes
+      immediate: yes
+    with_items:
+    - mountd
+    - rpc-bind
+    - nfs3
+
+  # Need to add a restart or "exportfs -r"
+  - name: export /home via NFS
+  template:
+    # This can be parameterised later when there are host onfig variables
+    src:  home_exports.j2
+    dest: /etc/exports.d/autocluster-home.exports
+
+  - name: ensure an NTP server is installed
+    package:
+      name: chrony
+      state: present
+
+  - name: allow NTP through firewall
+    firewalld:
+      service: ntp
+      zone: public
+      state: enabled
+      permanent: yes
+      immediate: yes
+
+  - name: enable/start NTP server
+    service:
+      name: chronyd
+      enabled: yes
+      state: started
+
+  - name: ensure an HTTP server is installed
+    package:
+      name: httpd
+      state: present
+
+  - name: enable/start HTTP server
+    service:
+      name: httpd
+      enabled: yes
+      state: started
+
+  - name: allow HTTP through firewall
+    firewalld:
+      service: http
+      zone: public
+      state: enabled
+      permanent: yes
+      immediate: yes
+
+  - name: ensure HTTP link for mediasets directory
+    file:
+      src: /home/mediasets
+      path: /var/www/html/mediasets
+      state: link
+      force: yes
+
+  - name: ensure semanage command is available
+    package:
+      name: policycoreutils-python
+      state: present
+
+  - name: selinux setup for /home/mediasets
+    command: "{{item}}"
+    with_items:
+    - chcon -R -t httpd_user_content_t /home/mediasets
+    - semanage boolean -m -1 httpd_unified
+    - semanage boolean -m -1 httpd_enable_homedirs
+
+  - name: install Python dependencies for Ansible Jinja templating
+    package:
+      name: python-netaddr
+      state: present
diff --git a/ansible/host/autocluster_setup_ssh.yml b/ansible/host/autocluster_setup_ssh.yml
new file mode 100644
index 0000000..1f6cbc5
--- /dev/null
+++ b/ansible/host/autocluster_setup_ssh.yml
@@ -0,0 +1,25 @@
+---
+- name: Set up an autocluster SSH key for the current user
+  connection: local
+  hosts: localhost
+
+  tasks:
+  - name: create SSH autocluster ID
+    # Not the most modern but compatibile with old distros such as
+    # Centos 6
+    command: >
+      ssh-keygen -b 2028 -t rsa -N "" -C "autocluster"
+        -f "{{ ansible_env.HOME }}/.ssh/id_autocluster"
+    args:
+      creates: "{{ ansible_env.HOME }}/.ssh/id_autocluster"
+
+  - name: create SSH autocluster.d/ configuration directory
+    file:
+      path: "{{ ansible_env.HOME }}/.ssh/autocluster.d"
+      state: directory
+
+  - name: update SSH config to include config autocluster clusters
+    lineinfile:
+      path: "{{ ansible_env.HOME }}/.ssh/config"
+      regexp: "^Include autocluster\.d/\*\.config$"
+      line: "Include autocluster.d/*.config"
diff --git a/ansible/host/home_exports.j2 b/ansible/host/home_exports.j2
new file mode 100644
index 0000000..458f96a
--- /dev/null
+++ b/ansible/host/home_exports.j2
@@ -0,0 +1 @@
+/home 10.0.0.0/24(rw,async,insecure,no_root_squash,no_subtree_check)