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183 lines
4.4 KiB
183 lines
4.4 KiB
---
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# See https://docs.openshift.com/container-platform/3.9/install_config/install/host_preparation.html
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- name: Prepare hosts for an OpenShift 3.9 installation
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hosts: OSEv3
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become: yes
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vars:
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ocp_version: 3.9
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docker_version: 1.13.1
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tasks:
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- name: Check if /etc/kubernetes exists
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stat:
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path: /etc/kubernetes
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register: etc_kubernetes
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tags: checks
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- name: Check if /etc/cni exists
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stat:
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path: /etc/cni
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register: etc_cni
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tags: checks
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- name: Check if there is an old version of Kubernetes installed
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assert:
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that:
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- "'KUBE_CONFIG' not in ansible_env"
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- "not etc_kubernetes.stat.exists"
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- "not etc_cni.stat.exists"
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msg: An old installation of Kubernetes may have been found
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tags: checks
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- name: Make sure SELinux is enabled
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lineinfile:
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path: /etc/sysconfig/selinux
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line: 'SELINUX=enforcing'
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regexp: '^ *SELINUX='
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state: present
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register: selinux
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tags: selinux
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- name: Reboot if SELinux state has changed
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command: '/sbin/shutdown -r now "reboot triggered by Ansible"'
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when: selinux.changed
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tags: selinux
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- name: Waiting for server(s) to come back
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fail:
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msg: "Wait for the server(s) to reboot and re-run this playbook"
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when: selinux.changed
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tags: selinux
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- name: Install the required software
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yum:
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name: '{{ item }}'
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state: installed
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with_items:
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- wget
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- git
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- net-tools
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- bind-utils
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- iptables-services
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- bridge-utils
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- bash-completion
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- kexec-tools
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- sos
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- psacct
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- name: Install some optional software
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yum:
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name: '{{ item }}'
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state: installed
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with_items:
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- vim-enhanced
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- tmux
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- unzip
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- tcpdump
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- telnet
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- strace
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- man-pages
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- man
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- iptraf
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- wget
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- openssh-clients
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- httpd-tools
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- net-tools
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- nfs-utils
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- yum-utils
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- openldap-clients
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tags: rpm
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- name: Install NetworkManager
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yum:
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name: NetworkManager
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state: installed
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tags: rpm,NetworkManager
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- name: Make sure NetworkManager is enabled
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service:
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name: NetworkManager
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state: started
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enabled: yes
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tags: rpm,NetworkManager
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- name: Make sure the system is up-to-date
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yum:
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name: '*'
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state: latest
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tags: rpm
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- name: First, disable any repos (using subscription-manager)
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command: subscription-manager repos --disable="*"
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tags: rpm
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- name: Make sure mandatory repos are enabled
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command: subscription-manager repos --enable {{ item }}
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with_items:
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- rhel-7-server-rpms
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- rhel-7-server-extras-rpms
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- rhel-7-server-ose-{{ ocp_version }}-rpms
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- rhel-7-fast-datapath-rpms # see https://access.redhat.com/solutions/3008401
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- rhel-7-server-ansible-2.4-rpms
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tags: rpm
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- name: Install Docker
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yum:
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name: 'docker-{{ docker_version }}'
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state: installed
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tags: rpm,docker
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- name: Find the filesystem hosting /var/lib/docker
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command: df -k /var/lib/docker
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register: df
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changed_when: false
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tags: docker
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- name: Make sure the filesystem hosting /var/lib/docker is formatted as XFS
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assert:
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that:
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- 'docker_filesystem == ''xfs'''
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msg: "The filesystem holding /var/lib/docker must be formatted as XFS"
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vars:
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docker_mount_point: '{{ df.stdout_lines[1].split()[5] }}'
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# TODO: replace match with "equalto" as soon as the Jinja shipped with RHEL is updated
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docker_filesystem: '{{ ansible_mounts|selectattr(''mount'', ''match'', ''^'' ~ docker_mount_point ~ ''$'')|map(attribute=''fstype'' )|first }}'
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tags: docker
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- name: Stop Docker
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service:
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name: docker
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state: stopped
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enabled: yes
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tags: docker
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- name: Make sure overlayfs is enabled
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lineinfile:
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path: /etc/sysconfig/docker-storage
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line: 'DOCKER_STORAGE_OPTIONS="--storage-driver overlay2"'
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regexp: '^ *DOCKER_STORAGE_OPTIONS='
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state: present
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register: docker_storage
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tags: docker
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- name: Cleanup the Docker local storage
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file:
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path: /var/lib/docker
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state: absent
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tags: docker
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when: docker_storage.changed
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- name: Start Docker
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service:
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name: docker
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state: started
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enabled: yes
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tags: docker
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- name: Install atomic-openshift-utils
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yum:
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name: atomic-openshift-utils
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state: installed
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tags: rpm,openshift
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